5G intelligent power management system, power supply system and power supply method of stock base station

文档序号：1907539 发布日期：2021-11-30 浏览：9次中文

阅读说明：本技术 存量基站的5g智能电源管理系统、供电系统及供电方法 (5G intelligent power management system, power supply system and power supply method of stock base station ) 是由阳林夏维赵跃王勇唐享华程远东赵旭东于 2021-08-11 设计创作，主要内容包括：本发明公开了一种存量基站的5G智能电源管理系统、供电系统及供电方法,该管理系统包括集成一体化设置的电源适配管理单元和智能开关阵列,基站开关电源系统与电源适配管理单元连接,电源适配管理单元输出端与智能开关阵列中对应的智能开关单元的一端连接,智能开关单元的另一端与AAU负载和/或BBU连接。采用本技术方案,通过管理系统和供电系统,满足5G基站AAU的直流供电业务需求,降低成本。(The invention discloses a 5G intelligent power supply management system, a power supply system and a power supply method of a stock base station. By adopting the technical scheme, the direct current power supply service requirement of the 5G base station AAU is met through the management system and the power supply system, and the cost is reduced.)

1. A5G intelligent power management system of stock base stations is characterized by adopting one of the following structures:

the structure I is as follows: the 5G intelligent power supply management system comprises a power supply adaptation management unit and an intelligent switch array which are integrally arranged, a base station switch power supply system is connected with the input end of the power supply adaptation management unit, the power supply adaptation management unit comprises a DC/DC boosting unit, the output end of the power supply adaptation management unit is connected with one end of the corresponding intelligent switch unit in the intelligent switch array, and the other end of the intelligent switch unit is connected with an AAU load and/or a BBU;

the structure II is as follows: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged, wherein the power adaptation management unit comprises a DC/DC charging unit and a power supply change-over switch, a base station switch power supply system is connected with the input end of the DC/DC charging unit, the output end of the DC/DC charging unit is connected with a 5G capacity-expansion battery pack, the base station switch power supply system and the 5G capacity-expansion battery pack are respectively connected with the power supply input end of the power supply change-over switch, the power supply output end of the power supply change-over switch is connected with one end of the corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is connected with an AAU load and/or a BBU;

the structure is three: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged, wherein the power adaptation management unit comprises a DC/DC charging unit and a DC/DC boosting unit, a base station switch power system is connected with the input end of the DC/DC charging unit, the input end of the DC/DC charging unit is connected with a 5G capacity-expanding battery pack, the output ends of the base station switch power system and the 5G capacity-expanding battery pack are respectively connected with the input end of the DC/DC boosting unit, the output end of the DC/DC boosting unit is connected with one end of the corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is connected with an AAU load and/or a BBU;

the structure is four: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged, wherein the power adaptation management unit comprises a bidirectional DC/DC battery combination unit, a power switch or a DC/DC boosting unit, a base station switch power system and a 5G capacity-expanding battery pack are interconnected through the bidirectional DC/DC battery combination unit, the output ends of the base station switch power system and the 5G capacity-expanding battery pack are respectively connected with the input ends of the power switch or the DC/DC boosting unit, the output end of the power switch or the DC/DC boosting unit is connected with one end of the corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is connected with an AAU load and/or a BBU;

the structure is five: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrated and arranged, the power supply adaptation management unit comprises a bidirectional DC/DC battery combination unit and a DC/DC boosting unit, a base station switch power supply system is interconnected with the 5G capacity-expanding battery pack through the bidirectional DC/DC battery combination unit, the output end of the base station switch power supply system (which is also the base station side of the bidirectional DC/DC battery combination unit) is connected with the input end of the DC/DC boosting unit, the output end of the DC/DC boosting unit is connected with one end of a corresponding intelligent switch unit in the switch array, the other end of the intelligent switch unit is connected with an AAU load and/or a BBU, a first bus controlled switch is arranged on a connecting line between the base station switch power supply system and the bidirectional DC/DC charging unit, and a second bus controlled switch is connected to the input side of the DC/DC boosting unit.

2. The base station inventory 5G intelligent power management system as claimed in claim 1, wherein one or more DC/DC boost units are provided in the first configuration, each DC/DC boost unit is correspondingly connected with one or more intelligent switch units, and the controlled end of each intelligent switch unit is connected with the corresponding output end of the DC distribution unit or the output end of the monitoring unit.

3. The 5G intelligent power management system of the stock base station of claim 1 or 2, further comprising a monitoring unit arranged in any one of the first structure to the fifth structure, wherein the input end of the monitoring unit is connected with the output end of the base station switching power supply alternating current detection device;

in the first structure, the output end of the monitoring unit is connected with the control end of each intelligent switch unit in the intelligent switch array;

in the second structure, the output end of the monitoring unit is respectively connected with the DC/DC charging unit, the power supply change-over switch and the control end of each intelligent switch unit;

in the third structure, the output end of the monitoring unit is respectively connected with the DC/DC charging unit, the DC/DC boosting unit and the control ends of the intelligent switch units;

in the fourth structure, the output end of the monitoring unit is respectively connected with the bidirectional DC/DC battery combining unit, each intelligent switch unit and the control end of the power supply changeover switch or the DC/DC boosting unit;

in the fifth structure, the output end of the monitoring unit is respectively connected with the bidirectional DC/DC battery combining unit, the DC/DC boosting unit, the first bus controlled switch, the second bus controlled switch and the control ends of the intelligent switch units;

the monitoring unit collects alternating current input information of the base station switching power supply, collects an electricity-on signal for start of lease, pre-stored electricity-standby duration and purchased electricity-generating service information, and controls the work of the corresponding controlled unit.

4. The 5G intelligent power management system of the stock base station of claim 3, wherein the information output end of the monitoring unit is further connected with an operation and maintenance monitoring platform and/or a local monitoring platform to realize single-platform or double-platform monitoring.

5. A base station power supply system using the 5G intelligent power management system of any one of claims 1-4, comprising a power monitoring module, an external mains power supply unit and a standby power system;

the external mains supply unit is connected with the switch rectification module through the alternating current intelligent switch, and the output end of the switch rectification module is connected with the standby power system;

the output ends of the external commercial power supply unit and the standby power system are respectively connected with a primary power-off load and a secondary power-off load;

the output ends of the external commercial power supply unit and the standby power system are also respectively connected with the 5G intelligent power management system in one of claims 1-4;

the power supply monitoring module controls one of the external commercial power supply unit and the standby power system to supply power.

6. The base station power supply system of claim 5 wherein the backup power system is one of the following:

the structure I is as follows: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system;

the peak clipping and valley filling monitoring module is connected with a control end of a first control unit, and the first control unit is arranged on an energy storage path of an original power supply system of the base station;

the peak clipping and valley filling monitoring module is connected with a control end of a second control unit, and the second control unit is arranged on an energy storage path of the peak clipping and valley filling power supply system;

the peak clipping and valley filling monitoring module monitors the peak period and the valley period of the power consumption of the power grid, controls the work of a peak clipping and valley filling power supply system and an original power supply system of a base station, and realizes energy storage in the valley period and discharge in the peak period;

the peak clipping and valley filling power supply system comprises a peak clipping and valley filling energy storage battery pack, a bus control switch and a rectification module, wherein the peak clipping and valley filling energy storage battery pack is connected in parallel and then is connected with a load of an original power supply system of a base station through the bus control switch;

the structure II is as follows: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system;

the peak clipping and valley filling monitoring module is connected with a control end of a control unit, and the control unit is arranged on an energy storage path of a peak clipping and valley filling power supply system;

the peak clipping and valley filling power supply system comprises an original base station battery pack and a plurality of capacity expansion energy storage battery packs, wherein the original base station battery pack and the plurality of capacity expansion energy storage battery packs are connected with a battery combiner in parallel, and the peak clipping and valley filling monitoring module monitors the peak period and the valley period of power consumption of a power grid, controls the work of the original base station battery pack and the plurality of capacity expansion energy storage battery packs, and realizes valley period energy storage and peak period discharge;

the structure is three: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system;

the peak clipping and valley filling power supply system adopts a new battery pack or an old battery pack with the same model, the peak clipping and valley filling monitoring module monitors the peak period and the valley period of the power consumption of the power grid, controls the work of the battery pack and realizes the energy storage in the valley period and the discharge in the peak period.

7. The base station power supply system of claim 6 wherein the peak and valley clipping power supply system of configuration one further comprises a DC/DC output unit;

the output end of the original power supply battery pack of the base station is provided with a current detection unit, and the output end of the current detection unit is connected with the output voltage control end of the DC/DC output unit.

8. The base station power supply system of claim 6 wherein said first configuration employs one of two schemes:

the first scheme is as follows: the first control unit is a first intelligent switch unit, the peak clipping and valley filling monitoring module is connected with a control end of the first intelligent switch unit, and the first intelligent switch unit is arranged on an energy storage path of an original power supply system of the base station; the second control unit is a second intelligent switch unit, the peak clipping and valley filling monitoring module is connected with a control end of the second intelligent switch unit, and the second intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system;

when the intelligent switch unit is an alternating current intelligent switch unit, the input end of the first alternating current intelligent switch unit and the input end of the second alternating current intelligent switch unit are both connected with an external commercial power, and the output end of the first alternating current intelligent switch unit and the output end of the second alternating current intelligent switch unit are respectively connected with the input ends of the rectifier modules of the corresponding power supply systems;

when the intelligent switch unit is a direct current intelligent switch unit, the first direct current intelligent switch unit is arranged between a rectification module of an original power system of the base station and a standby battery pack of the original power system of the base station, and the second direct current intelligent switch unit is arranged between a rectification module of a peak clipping and valley filling power system and a peak clipping and valley filling energy storage battery pack;

scheme II: the first control unit is an original switch power supply monitoring unit of the base station, the peak clipping and valley filling monitoring module is connected with a control end of the original switch power supply monitoring unit of the base station, and the original switch power supply monitoring unit of the base station is arranged on an energy storage path of an original power supply system of the base station and controls the output on-off of a rectification module of the original power supply system of the base station; the second control unit is a peak clipping and valley filling power supply system switching power supply monitoring unit, the peak clipping and valley filling monitoring module is connected with a control end of the peak clipping and valley filling power supply system switching power supply monitoring unit, and the peak clipping and valley filling power supply system switching power supply monitoring unit is arranged on an energy storage path of the peak clipping and valley filling power supply system and controls the output on-off of a peak clipping and valley filling power supply system rectifying module.

9. The base station power supply system of claim 6, wherein the second structure and the third structure respectively adopt one of the following two schemes:

the first scheme is as follows: the control unit is an intelligent switch unit, the peak clipping and valley filling monitoring module is connected with the control end of the intelligent switch unit, and the intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system;

when the intelligent switch unit is an alternating current intelligent switch unit, the input end of the alternating current intelligent switch unit is connected with an external commercial power, and the output end of the alternating current intelligent switch unit is respectively connected with the input end of the original rectification module of the base station and the input end of the capacity expansion rectification module;

when the intelligent switch unit is a direct current intelligent switch unit, the direct current intelligent switch unit is arranged on the output sides of a rectification module of an original power supply system of the base station and a rectification module of a peak clipping and valley filling power supply system;

scheme II: the control unit is a switching power supply monitoring unit, the peak clipping and valley filling monitoring module is connected with a control end of the switching power supply monitoring unit, and the switching power supply monitoring unit is arranged on an energy storage path of the peak clipping and valley filling power supply system and controls the output on-off of an original rectification module and an expansion rectification module of the base station.

10. The base station power supply system according to claim 8 or 9, wherein a second scheme of the first structure further comprises a first intelligent switch unit and a second intelligent switch unit;

the peak clipping and valley filling monitoring module is connected with a control end of a first intelligent switch unit, and the first intelligent switch unit is arranged on an energy storage path of an original power supply system of a base station;

the peak clipping and valley filling monitoring module is connected with a control end of a second intelligent switch unit, and the second intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system;

the first intelligent switch unit is arranged on the input side or the output side of an original switch power supply rectification module of a base station, and the second intelligent switch unit is arranged on the input side or the output side of the rectification module of a peak clipping and valley filling power supply system;

and/or, the second scheme of the second structure further comprises an intelligent switch unit;

the peak clipping and valley filling monitoring module is connected with a control end of an intelligent switch unit, and the intelligent switch unit is arranged on an energy storage path of a peak clipping and valley filling power supply system;

the intelligent switch unit is arranged on the input side or the output side of the rectification module.

11. The base station power supply system of claim 6, wherein the battery combiner of the second configuration comprises a plurality of combining branches connected in parallel, each branch comprising a switch unit and a DC/DC output unit;

and/or the capacity expansion modules of the second structure and the third structure comprise rectification units for rectification during peak clipping and valley filling power supply system charging.

12. A power supply method for a base station power supply system according to any one of claims 5 to 11, comprising one of:

the peak clipping and valley filling monitoring module controls a load full-power-down control switch of an original power supply system of the base station to be switched off, a bus control switch of the peak clipping and valley filling power supply system is switched on, the second control unit and the first control unit are switched off, and the peak clipping and valley filling power supply system discharges electricity to all loads of the base station;

the peak clipping and valley filling monitoring module controls a load full-power-down control switch of an original power supply system of the base station to be closed, a bus control switch of the peak clipping and valley filling power supply system to be opened, a second control unit and a first control unit are closed, the original power supply system of the base station supplies power to all loads of the base station, and an external power grid charges an energy storage battery of the peak clipping and valley filling power supply system until the energy storage battery is fully charged;

the second method comprises the following steps: when the peak load is shifted from the load period to the peak period, the peak load shifting monitoring module outputs a discharge signal to the peak load shifting energy storage power supply system, the peak load shifting monitoring module controls the control unit to be switched off, and the capacity expansion energy storage battery group of the peak load shifting power supply system discharges all loads of the base station;

when the peak period is shifted to the valley period, the peak clipping and valley filling monitoring module outputs an energy storage signal to the peak clipping and valley filling energy storage power supply system, the peak clipping and valley filling monitoring module controls the control unit to be closed, an original power supply system of a base station of the peak clipping and valley filling power supply system supplies power to all loads of the base station, and an external power grid charges an energy storage battery pack of the peak clipping and valley filling power supply system until the energy storage battery pack is fully charged;

during the valley period, the peak clipping and valley filling monitoring module outputs a charging signal to the peak clipping and valley filling power supply system, the control unit is controlled to be closed, and the battery pack of the peak clipping and valley filling power supply system is integrally charged.

13. The method as claimed in claim 12, wherein the load of the base station is discharged by the peak clipping and valley filling power system if the power failure occurs during peak period; if the peak period is shifted to the valley period, the external commercial power is not recovered, and the standby battery of the original power supply system of the base station is automatically switched to supply power;

and/or if the energy storage battery of the peak clipping and valley filling power supply system is not fully charged due to power failure in the valley period, the peak clipping and valley filling monitoring module calculates the peak clipping and discharging time of the energy storage battery in the peak clipping and valley filling power supply system; the discharging priority of the energy storage battery is as follows: the method comprises the steps that a peak period, a peak period and a peak leveling period are carried out, the residual peak period with insufficient discharge duration is switched to the original power supply system of the base station to supply power, and when the standby battery capacity and the energy storage battery capacity of the original power supply system of the base station are completely consumed in the peak period, part or all of original rectification modules of the base station are closed, and only power is supplied to a load of the base station;

and/or, when 2 or more valley periods exist in a day, charging the peak clipping and valley filling power supply system by using the longest valley period; in other valley periods, closing part or all original rectification modules of the base station, disconnecting a bus change-over switch of the peak clipping and valley filling power supply system and only supplying power to a base station load; after the valley period is switched to the peak period, disconnecting a first control unit of the original power supply system and a load full-power-down control switch, simultaneously closing a bus control switch of the peak clipping and valley filling power supply system, and recovering to continue discharging the peak clipping and valley filling power supply system;

and/or during the peak period, the output voltage of the peak clipping and valley filling power supply system is adjusted to be higher than the bus voltage of the original power supply system of the base station through the DC/DC output unit, so that the peak clipping and valley filling power supply system supplies power to the load of the base station; and during the valley period, the output voltage of the peak clipping and valley filling power supply system is adjusted to be lower than the bus voltage of the original power supply system of the base station through the DC/DC output unit, the peak clipping and valley filling power supply system stops supplying power to the base station load, and the original power supply system of the base station is controlled to supply power to the base station load.

Technical Field

The invention belongs to the technical field of 5G base stations, and relates to a 5G intelligent power management system, a power supply system and a power supply method of a stock base station.

Background

With the continuous construction of 5G base stations and the continuous development of 5G services, there is a higher requirement for the direct current supply service of the 5G base station AAU (Active Antenna Unit). For example, capacity expansion and combination access requirements, constant voltage requirements for long pulling distance, and differentiated power supply requirements. In order to meet the direct current power supply service requirement of an AAU (architecture automation unit) of a 5G base station, a battery combiner of an MOS (metal oxide semiconductor) tube scheme or a bidirectional DC/DC scheme is adopted in part of current base stations, or an expensive intelligent lithium battery (with an external 1-group battery) is adopted to realize the battery combining function; configuring DCDU intelligent boosting equipment for the AAU with the overlong remote distance; configuring a sub-household type differential standby power unit or an intelligent switch; and operation such as a shunt type intelligent switch is configured at the front end of the AAU again. Therefore, the investment cost of the base station is too high, the application and popularization are not facilitated, and logic conflict contradiction can occur when the additionally arranged devices are matched and connected. Meanwhile, the existing battery connector cannot implement accurate charging and discharging management on the 5G newly-added battery, so that the capacity loss of the battery and the high electric charge are caused.

Disclosure of Invention

The invention aims to provide a 5G intelligent power management system, a power supply system and a power supply method of a stock base station, which meet the direct current power supply service requirement of an AAU of the 5G base station.

In order to achieve the purpose, the basic scheme of the invention is as follows: A5G intelligent power management system of stock base stations adopts one of the following structures:

the structure II is as follows: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged, wherein the power adaptation management unit comprises a DC/DC charging unit and a power supply change-over switch, a base station switch power supply system is connected with the input end of the DC/DC charging unit, the input end of the DC/DC charging unit is connected with a 5G capacity expansion battery pack through a unit, the base station switch power supply system and the 5G capacity expansion battery pack are respectively connected with the power supply input end of the power supply change-over switch, the power supply output end of the power supply change-over switch is connected with one end of the corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is connected with an AAU load and/or a BBU;

the structure is three: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged, wherein the power adaptation management unit comprises a DC/DC boosting unit and a DC/DC charging unit, a base station switch power system is connected with the input end of the DC/DC charging unit, the input end of the DC/DC charging unit is connected with a 5G capacity expansion battery pack through a unit, the output ends of the base station switch power system and the 5G capacity expansion battery pack are respectively connected with the input end of the DC/DC boosting unit, the output end of the DC/DC boosting unit is connected with one end of the corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is connected with an AAU load and/or a BBU;

The working principle and the beneficial effects of the basic scheme are as follows: setting a trial operation working time length for power-on debugging for the 5G intelligent power supply management system, wherein before the trial operation working time length expires, if a power-on signal for renting is received, the 5G intelligent power supply management system enters a normal working mode, and if the power-on signal for renting is not received when the trial operation expires, the intelligent switch array of the 5G intelligent power supply management system is automatically disconnected and locked. By the 5G intelligent power management system, a fixed time period (the start-stop time can be adjusted remotely) can be set for the power-off and energy-saving of the AAU; and the self-networking monitoring can be realized, and the instruction of the power supply adaptation management unit is received to remotely control the closing/opening of the power supply of the AAU so as to realize accurate energy-saving management and control. Therefore, the structure is simple, and the cost is reduced by manufacturing and using.

Further, the number of the DC/DC boosting units in the first structure is multiple, each DC/DC boosting unit is correspondingly connected with one intelligent switch unit, and the controlled end of each intelligent switch unit is connected with the corresponding output end of the direct current distribution unit.

Simple structure and easy control.

The monitoring device further comprises a monitoring unit arranged in any one of the first structure to the fifth structure, wherein the input end of the monitoring unit is connected with the output end of the alternating current detection device of the base station switching power supply;

in the first structure, the output end of the monitoring unit is connected with the control end of each intelligent switch unit in the intelligent switch array;

in the third structure, the output end of the monitoring unit is respectively connected with the DC/DC charging unit, the DC/DC boosting unit and the control ends of the intelligent switch units;

in the fourth structure, the output end of the monitoring unit is respectively connected with the bidirectional DC/DC charging unit, each intelligent switch unit and the control end of the power supply changeover switch or the DC/DC boosting unit;

in the fifth structure, the output end of the monitoring unit is connected with the bidirectional DC/DC charging unit, the DC/DC boosting unit, the first bus controlled switch, the second bus controlled switch and the control end of each intelligent switch unit respectively.

The monitoring unit is used for collecting alternating current input information of the base station switching power supply and collecting a power-on signal for start of renting, pre-stored standby power duration and purchased power generation service information, so that the work of the corresponding controlled unit is controlled.

Furthermore, the information output end of the monitoring unit is also connected with the operation and maintenance monitoring platform and/or the local monitoring platform, so that single-platform or double-platform monitoring is realized.

And acquiring the traffic data of the operation and maintenance monitoring platform and/or the local monitoring platform for analyzing the accurate energy conservation of the platform.

The invention also provides a base station power supply system utilizing the 5G intelligent power management system, which comprises a power supply monitoring module, an external commercial power supply unit and a standby power system;

the output ends of the external commercial power supply unit and the standby power system are respectively connected with a primary power-off load and a secondary power-off load;

the output ends of the external commercial power supply unit and the standby power system are respectively connected with the 5G intelligent power management system;

the power supply monitoring module controls one of the external commercial power supply unit and the standby power system to supply power.

The base station power supply system can meet the direct current power supply service requirement of the 5G base station AAU, and simultaneously controls an external commercial power supply unit or a standby power system to supply power according to the requirement, so that the use is convenient.

Further, the standby power system adopts one of the following structures:

the structure I is as follows: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system;

the structure II is as follows: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system;

the structure is three: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system;

The peak clipping and valley filling energy storage power supply system can select a proper structure as required to meet the peak clipping and valley filling requirements of different base stations, and is flexible to use. And an independent peak clipping and valley filling monitoring system is arranged to evaluate and ensure network safety and peak clipping and valley filling implementation effects.

When the maximum capacity expansion capacity of the standby power system is not enough to support the requirement of the charging capacity of the peak-valley energy storage system, the first structure is adopted, the bus control switch and the rectification module are utilized to control the power supply switching of the original power system and the peak-clipping valley-filling power system, and meanwhile, the problem that the original power system and the peak-clipping valley-filling power system are compatible and coexistent is solved. The front ends of the original power supply system and the peak clipping and valley filling power supply system are respectively provided with a first control unit and a second control unit which are used for controlling on/off switching of alternating current input, so that the problem of universality of a peak clipping and valley filling monitoring module is solved, and the standby power consumption of a rectifying module is saved.

And when the maximum capacity expansion capacity of the standby power system is enough to support the charge capacity requirement of the peak-valley energy storage system, adopting a second structure or a third structure. And the second structure utilizes the battery combiner to connect the original battery pack of the base station and the plurality of capacity expansion energy storage battery packs, and controls the charging and discharging management of the original battery pack of the base station and the plurality of capacity expansion energy storage batteries in different peak-valley periods through the battery combiner. And the structure two is simple in connection structure and beneficial to use. The third structure adopts a new battery pack or an old battery pack with the same model, a battery combiner is not needed, the structure is simpler, and the installation and the use are facilitated. Meanwhile, the capacity of the standby battery can be reduced by 1 hour, namely when the base station completely adopts the same type of iron lithium battery to form a standby and energy storage system, the whole discharge time of the battery pack can be designed to be 'peak period + 1' hour.

Further, the peak clipping and valley filling power supply system of the first structure further comprises a DC/DC output unit;

the output end of the battery pack of the original power supply system of the base station is provided with a current detection unit, and the output end of the current detection unit is connected with the output voltage control end of the DC/DC output unit.

The current value signal of the battery pack of the original power supply system of the base station is obtained according to the current detection unit and is used for judging the load take-over and output voltage regulation, and the DC/DC output unit is controlled to regulate the voltage output by the peak clipping and valley filling power supply system, so that the use is facilitated.

Further, the first structure adopts one of the following two schemes:

And a proper scheme is selected according to the requirement, the use is flexible, and the smooth operation of the system is ensured. Further, the structure two and the structure three adopt one of the following two schemes respectively:

And a proper scheme is selected according to the requirement, the use is flexible, and the smooth operation of the system is ensured.

In a preferred embodiment of the present invention, the second configuration further includes a first intelligent switch unit and a second intelligent switch unit;

the first intelligent switch unit is arranged on the input side or the output side of an original switch power supply rectification module of the base station, and the second intelligent switch unit is arranged on the input side or the output side of the rectification module of the peak clipping and valley filling power supply system.

In another preferred embodiment of the present invention, the second configuration further includes an intelligent switch unit;

the intelligent switch unit is arranged on the input side or the output side of the rectification module.

The intelligent switch unit is arranged, so that the switch control of the circuit is more flexible.

In another preferred embodiment of the present invention, the battery combiner of the second structure includes a plurality of combining branches connected in parallel, and each branch includes a switch unit and a DC/DC output unit.

In another preferred embodiment of the present invention, the capacity expansion module of the second structure and the capacity expansion module of the third structure include a rectification unit, which is used for rectification when the peak clipping and valley filling power supply system is charged.

The management of the original battery pack of the base station and the plurality of capacity-expansion energy-storage battery packs is realized through the battery combiner, and the charge-discharge management of the original battery pack of the base station and the plurality of capacity-expansion energy-storage battery packs at different peak-valley periods is controlled.

The invention also provides a power supply method for the base station power supply system, which comprises one of the following methods:

By using the corresponding method, the energy storage in the period and the peak period discharge are realized, and the electricity charge cost of the base station network equipment is reduced.

In a preferred embodiment of the invention, if the mains supply is powered off during the peak period, the load of the base station is discharged by the peak clipping and valley filling power supply system; and if the peak period is shifted to the valley period, the external commercial power is not recovered, and the standby battery of the original power system of the base station is automatically switched to supply power.

In another preferred embodiment of the present invention, if the energy storage battery of the peak clipping and valley filling power supply system is not fully charged due to power outage in the valley period, the peak clipping and valley filling monitoring module calculates the peak clipping discharge time of the energy storage battery in the peak clipping and valley filling power supply system; the discharging priority of the energy storage battery is as follows: the method comprises the steps that a peak period, a peak period and a peak leveling period are carried out, the residual peak period with insufficient discharge time is switched to the original power supply system of the base station for power supply, when the standby battery capacity and the energy storage battery capacity of the original power supply system of the base station are completely consumed in the peak period, part or all of original rectification modules of the base station are closed, and only the base station load is supplied with power.

In yet another preferred embodiment of the present invention, when there are 2 or more valley periods in a day, the peak clipping and valley filling power supply system is charged with the longest valley period; in other valley periods, closing part or all original rectification modules of the base station, disconnecting a bus change-over switch of the peak clipping and valley filling power supply system and only supplying power to a base station load; and after the valley period is switched to the peak period, disconnecting the first control unit of the original power supply system and the load full-power-off control switch, simultaneously closing a bus control switch of the peak clipping and valley filling power supply system, and recovering to continue discharging of the peak clipping and valley filling power supply system.

In yet another preferred embodiment of the present invention, during peak time, the output voltage of the peak clipping and valley filling power supply system is adjusted to be higher than the bus voltage of the original power supply system of the base station through the DC/DC output unit, so that the peak clipping and valley filling power supply system supplies power to the load of the base station; and during the valley period, the output voltage of the peak clipping and valley filling power supply system is adjusted to be lower than the bus voltage of the original power supply system of the base station through the DC/DC output unit, the peak clipping and valley filling power supply system stops supplying power to the base station load, and the original power supply system of the base station is controlled to supply power to the base station load.

Aiming at the power failure condition of the external commercial power, a corresponding power supply method is adopted to ensure power supply and ensure normal operation of the equipment.

Drawings

FIG. 1 is a block diagram of a first configuration of a 5G intelligent power management system of the stock base station of the present invention;

FIG. 2 is a block diagram of a second configuration of the 5G intelligent power management system of the stock base station of the present invention;

FIG. 3 is a block diagram of a third configuration of the 5G intelligent power management system of the stock base station of the present invention;

FIG. 4 is a block diagram of a fourth configuration of the 5G intelligent power management system of the stock base station of the present invention;

FIG. 5 is a block diagram of a fifth configuration of a 5G intelligent power management system of a stock base station of the present invention

FIG. 6 is a schematic structural diagram of a 5G expansion battery pack of the base station power supply system according to the present invention;

FIG. 7 is a schematic structural diagram of a 5G expansion battery pack of the base station power supply system according to the present invention;

fig. 8 is a schematic structural diagram of a first embodiment of a standby power system of a base station power supply system according to the present invention;

fig. 9 is another schematic structural diagram of a first scheme adopted by a configuration of a standby power system of a base station power supply system of the invention;

fig. 10 is a schematic structural diagram of a standby power system of a base station power supply system according to a second embodiment of the present invention and an ac intelligent switch unit;

fig. 11 is a schematic structural diagram of a second configuration of the standby power system of the base station power supply system according to the present invention;

fig. 12 is a schematic structural diagram of a third configuration of the standby power system of the base station power supply system according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The invention discloses a 5G intelligent power management system of a stock base station, which adopts one of the following structures:

as shown in fig. 1, structure one: the 5G intelligent power management system comprises a power adaptation management unit (comprising a battery combining unit and/or an intelligent boosting unit) and an intelligent switch array which are integrally arranged, a base station switch power system is electrically connected with the input end of the power adaptation management unit, the power adaptation management unit comprises a plurality of DC/DC boosting units, each DC/DC boosting unit is correspondingly connected with one intelligent switch unit, the controlled end of each intelligent switch unit is connected with the corresponding output end of a direct current distribution unit, and the other end of each intelligent switch unit is electrically connected with an AAU load and/or a BBU. The intelligent switch array is provided with a plurality of groups, each group comprises a controlled switch, and the controlled end of the controlled switch is electrically connected with the corresponding output end of the direct current distribution unit.

When the base station switch power supply system supplies power for external commercial power, the base station switch power supply system supplies power for all AAU loads at a constant voltage of 57V through the 5G intelligent power management system, and at the moment, controlled switches at the front ends of all AAUs are closed.

When alternating current input of a base station switch power supply system is in power failure, all battery packs of the base station discharge constant voltage of 57V to each path of 5G load through the intelligent DCDU + intelligent switch integrated module according to preset standby power duration (or standby power voltage and standby power capacity) thresholds respectively, and differential standby power guarantee service with 4G is achieved.

When the base station switch power supply system supplies power for the alternating current oil engine, if power generation service is purchased, the base station switch power supply system supplies power to a 5G load 57V constant voltage through a 5G intelligent power supply management system; if the power generation service is not purchased, the base station switch power supply system automatically cuts off the power supply for the 5G load through a 5G intelligent power supply management system (namely, an intelligent DCDU + intelligent switch integrated module in the figure), and the differentiated power generation guarantee service with the 4G is realized.

As shown in fig. 2, configuration two (when the 57V boost function is not required): the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged. The power supply adaptation management unit comprises a DC/DC charging unit and a power supply changeover switch, a base station switch power supply system is electrically connected with the input end of the DC/DC charging unit, the input end of the DC/DC charging unit is electrically connected with the 5G capacity expansion battery pack through a unit, the base station switch power supply system and the 5G capacity expansion battery pack are respectively electrically connected with the power supply input end of the power supply changeover switch, the power supply output end of the power supply changeover switch is electrically connected with one end of a corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is electrically connected with the AAU load and/or the BBU. Preferably, the intelligent switch array has a plurality of groups, each group includes a controlled switch, and the controlled end of the controlled switch is electrically connected with the corresponding output end of the power supply adaptation management unit.

When the base station switch power supply system supplies power to the external commercial power, the base station switch power supply system charges the 5G expansion battery through the DC/DC charging unit according to the set charging current and voltage, and simultaneously supplies power to the AAU load through the input of the switch power supply direct current bus of the power supply change-over switch.

When alternating current input of a base station switch power supply system is in power failure, the 5G expansion battery pack is connected with the power supply change-over switch to discharge for the AAU load, the original battery pack of the base station discharges for the 4G wireless equipment and the transmission equipment, and the DC/DC charging unit stops working.

When the base station switch power supply system supplies power to the alternating current oil engine, if power generation service is purchased, the working mode is equal to that when the external commercial power is electrified, a direct current bus of the base station switch power supply system charges the 5G expansion battery according to set current and voltage through the DC/DC charging unit, and meanwhile, power is supplied to the AAU load through the power supply change-over switch. If the power generation service is not bought, the alternating current input power failure logic is continuously executed until the 5G expansion battery pack independently discharges to low-voltage protection.

As shown in fig. 3, configuration three (when a 57V boost function is required): the 5G intelligent power management system comprises a power adaptation management unit (comprising a direct current distribution unit and a battery combining unit) and an intelligent switch array which are integrated and integrally arranged. The power supply adaptation management unit comprises a DC/DC boosting unit and a DC/DC charging unit, a base station switch power supply system is electrically connected with the input end of the DC/DC charging unit, the input end of the DC/DC charging unit is electrically connected with the 5G capacity-expansion battery pack through a unit, the output ends of the base station switch power supply system and the 5G capacity-expansion battery pack are respectively electrically connected with the input end of the DC/DC boosting unit, the output end of the DC/DC boosting unit is connected with one end of a corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is electrically connected with the AAU load and/or the BBU.

When the base station switch power supply system supplies power to the external commercial power, the base station switch power supply system charges the 5G expansion battery through the DC/DC charging unit according to the set charging current and voltage, and simultaneously supplies power to the AAU load at a constant voltage of 57V through the input of the DC bus of the switch power supply of the DC/DC boosting unit.

When alternating current input of a base station switch power supply system is in power failure, the 5G capacity-expansion battery pack is connected with the DC/DC boosting unit to discharge constant voltage of 57V to the AAU load, the original battery pack of the base station discharges to the 4G wireless equipment and the transmission equipment, and the DC/DC charging unit stops working.

When the base station switch power supply system supplies power for the alternating current oil engine, if power generation service is purchased, the working mode is equal to that when the external commercial power is electrified, the direct current bus of the base station switch power supply system charges the 5G expansion battery according to set current and voltage through the DC/DC charging unit, and meanwhile, the AAU load is supplied with power through the DC/DC boosting unit. If the power generation service is not bought, the alternating current input power failure logic is continuously executed until the 5G expansion battery pack independently discharges to low-voltage protection.

As shown in fig. 4, the structure four (after a 5G expansion battery has a long-time power failure, if the standby power duration needs to be reduced for 5G, the standby power guarantee is realized for 4G): the 5G intelligent power management system comprises a power adaptation management unit (comprising a direct current distribution unit and a battery combining unit) and an intelligent switch array (all the battery combining units are provided with switches) which are integrated and integrally arranged.

The power supply adaptation management unit comprises a bidirectional DC/DC charging unit, a power supply changeover switch or a DC/DC boosting unit, and the base station switch power supply system and the 5G capacity expansion battery pack are interconnected through the bidirectional DC/DC charging unit. The output ends of the base station switch power supply system and the 5G capacity-expanding battery pack are respectively and electrically connected with the input end of the power supply changeover switch, or the output ends of the base station switch power supply system and the 5G capacity-expanding battery pack are respectively and electrically connected with the input end of the DC/DC boosting unit. The output end of the power supply changeover switch or the DC/DC boosting unit is electrically connected with one end of the corresponding intelligent switch unit in the switch array, and the other end of the intelligent switch unit is electrically connected with the AAU load and/or the BBU.

When the AC input of the base station switch power supply system is in the initial state of power failure, the power supply adaptation management unit stops working (the charging and discharging functions are closed), and the 5G expansion battery is connected with the DC/DC boosting unit (or the ATS change-over switch) to independently discharge to the AAU load.

After the preset 5G standby power duration is reached, the intelligent switch unit at the front end of the AAU disconnects the power supply of the AAU, and then the discharging function of the battery combining unit is turned on, so that the residual capacity of the 5G expansion battery and the original battery discharge for the original 4G load together, and the standby power duration of the original 4G load is prolonged.

Under the long-time power failure condition of outer commercial power, when power adaptation management unit's the function of discharging opened:

if the original battery system is charged, the 5G expansion battery discharges according to preset current through the power supply adaptation management unit, and discharges the original 4G load together with the original battery so as to prolong the standby power time;

if the original battery system is deeply protected by discharge (no voltage of a bus), the 5G expansion battery independently discharges to the 4G load through the power supply adaptation management unit, and the standby power time of the 4G load is prolonged.

As shown in fig. 5, structure five: the 5G intelligent power management system comprises a power adaptation management unit and an intelligent switch array which are integrally arranged, the power adaptation management unit comprises a DC/DC boosting unit and a bidirectional DC/DC charging unit, a base station switch power system and a 5G capacity expansion battery pack are interconnected through the bidirectional DC/DC charging unit, and the output end of the base station switch power system and the base station side of the bidirectional DC/DC charging unit are respectively electrically connected with the input end of the DC/DC boosting unit. The output end of the DC/DC boosting unit is electrically connected with one end of a corresponding intelligent switch unit in the switch array, the other end of the intelligent switch unit is electrically connected with the AAU load and/or the BBU, a first bus controlled switch is arranged on a connecting circuit of the base station switch power supply system and the bidirectional DC/DC charging unit, and a second bus controlled switch is electrically connected on the input side of the DC/DC boosting unit.

After the preset 5G standby power duration is reached, the intelligent switch unit at the front end of the AAU disconnects the power supply of the AAU, the discharging function of the power adaptation management unit is turned on, the first bus controlled switch and the second bus controlled switch are closed, the residual capacity of the 5G expansion battery and the original battery are discharged together for the original 4G load, and the standby power duration of the original 4G load is prolonged.

Under the long-time power failure condition of outer commercial power, when power adaptation management unit's the function of discharging opened:

The 5G intelligent power management system in the scheme further comprises a monitoring unit arranged in any one of the first structure to the fifth structure, and the input end of the monitoring unit is connected with the output end of the base station switching power supply alternating current detection device. The monitoring unit is used for collecting an initial lease power-on signal, pre-stored standby power time and purchased power generation service information, the output end of the monitoring unit is connected with the control signal input end of the intelligent switch unit, and the corresponding intelligent switch unit is controlled to be opened and closed according to the initial lease power-on signal, the pre-stored standby power time and the purchased power generation service information.

In the first structure, the output end of the monitoring unit is connected with the control end of each intelligent switch unit in the intelligent switch array. In the second structure, the output end of the monitoring unit is respectively connected with the DC/DC charging unit, the power supply change-over switch and each intelligent switch unit; in the third structure, the output end of the monitoring unit is respectively connected with the DC/DC charging unit, the DC/DC boosting unit and each intelligent switch unit; in the fourth structure, the output end of the monitoring unit is respectively connected with the bidirectional DC/DC charging unit, each intelligent switch unit and the power supply change-over switch or the DC/DC boosting unit; in the fifth structure, the output end of the monitoring unit is respectively connected with the bidirectional DC/DC charging unit, the DC/DC boosting unit, the first bus controlled switch, the second bus controlled switch and each intelligent switch unit.

In a preferred mode of this scheme, the information output end of monitoring unit still with operation and maintenance monitoring platform and/or local monitoring platform electric connection, realize single platform or two platform control, monitoring unit utilizes RS485 interface to insert iron tower headquarters operation and maintenance monitoring platform, when accurate energy-conservation according to local operator real-time telephone traffic data analysis platform, the embedded FSU of selective 4G module builds local monitoring platform, realizes two monitoring platform networks.

As shown in fig. 6 and 7, the present invention further provides a base station power supply system using the 5G intelligent power management system of the present invention, which includes a power monitoring module, an external commercial power supply unit, and a standby power system. The external mains supply unit is electrically connected with the switch rectifying module through the alternating current intelligent switch, the output end of the switch rectifying module is connected with the standby power system, the output ends of the external mains supply unit and the standby power system are respectively electrically connected with the primary power-off load and the secondary power-off load, the output ends of the external mains supply unit and the standby power system are respectively connected with the 5G intelligent power management system, and the power monitoring module controls one of the external mains supply unit and the standby power system to supply power.

In order to realize the strategy of 'energy storage in valley period and discharge in peak period' and reduce the cost of electricity charge of network equipment of a base station, a large-capacity energy storage power supply system needs to be built in the base station, so that the base station can support the whole electricity consumption in the peak period of 12-16 hours, and can complete energy storage recovery of the energy storage system in the short valley period of 8-12 hours, namely, the battery needs to be fully charged in a short time under the condition of deep discharge, and the process is repeated in a deep charge-discharge cycle every day. Calculated as per KW dc load: the 12-hour and 16-hour power supply in the peak period respectively needs 12KWh and 16KWh discharge capacities, correspondingly at least 48V/250Ah batteries and 48V/350Ah batteries are respectively needed, at least 0.2C charging current is needed when the battery is fully charged in 8-12 hours, and correspondingly, the charging capacities of the switch power supplies are 50A and 70A.

In order to realize the purposes of energy storage in the valley period and discharge in the peak period, the standby power system can adopt one of the following structures:

as shown in fig. 8-10, structure one: the power supply system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system, wherein the peak clipping and valley filling monitoring module can set a plurality of peak-valley periods in 24 hours a day, each peak-valley period time switching point is adjustable, and the peak-valley periods can be preset according to locally executed power price policies (for example, according to industrial and commercial development conditions, daily production and living habits of residents and weather conditions, a plurality of peak-valley periods are divided for 24 hours in 1 day, and the peak-valley periods comprise three to four grades, such as a peak period, a peak leveling period and a valley period, wherein the peak period is about 12-16 hours, and the valley period is about 8-12 hours); or whether the current is in a peak period or a valley period is judged according to the current on the commercial power grid, for example, the current is set to be in the peak period when the current exceeds a peak period threshold value, and is set to be in the valley period when the current is lower than the peak period threshold value.

The peak clipping and valley filling monitoring module is electrically connected with a control end of the first control unit, the first control unit is arranged on an energy storage path of an original power supply system of the base station, the peak clipping and valley filling monitoring module is electrically connected with a control end of the second control unit, and the second control unit is arranged on the energy storage path of the peak clipping and valley filling power supply system. The peak clipping and valley filling monitoring module monitors the peak period and the valley period of the power consumption of the power grid (judged according to circuit current or a preset time table), controls the work of a peak clipping and valley filling power supply system and/or an original power supply system of the base station, and realizes energy storage in the valley period and discharge in the peak period.

The peak clipping and valley filling power supply system comprises a peak clipping and valley filling energy storage battery pack, a bus control switch and a rectification module, wherein the peak clipping and valley filling energy storage battery pack is electrically connected with a load of an original power supply system of a base station through the bus control switch after being connected in parallel. The peak clipping and valley filling monitoring module is electrically connected with a control end of a load full-down electric control switch (a primary down electric switch and/or a secondary down electric switch) of an original power supply system of the base station and a control end of a bus control switch respectively, the second control unit controls the output on-off of the rectifying module, and the output end of the rectifying module is connected with a charging end of the peak clipping and valley filling energy storage battery pack.

The first structure adopts a scheme I: the first control unit is a first intelligent switch unit, the peak clipping and valley filling monitoring module is connected with a control end of the first intelligent switch unit, and the first intelligent switch unit is arranged on an energy storage path of an original power supply system of the base station. The second control unit is a second intelligent switch unit, the peak clipping and valley filling monitoring module is electrically connected with a control end of the second intelligent switch unit, and the second intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system.

As shown in fig. 8 and 9, when the intelligent switch unit is an ac intelligent switch unit, the input terminal of the first ac intelligent switch unit and the input terminal of the second ac intelligent switch unit are both connected to the external utility power, and the output terminal of the first ac intelligent switch unit and the output terminal of the second ac intelligent switch unit are respectively connected to the input terminals of the rectifier modules of the corresponding power supply systems.

When the intelligent switch unit is a direct current intelligent switch unit, the first direct current intelligent switch unit is arranged between the rectification module of the original power system of the base station and the standby battery pack of the original power system of the base station, and the second direct current intelligent switch unit is arranged between the rectification module of the peak clipping and valley filling power system and the peak clipping and valley filling energy storage battery pack.

The peak clipping and valley filling monitoring module monitors the peak period and the valley period of the power consumption of the power grid (judged according to circuit current or a preset time table), controls the work of a peak clipping and valley filling power supply system and/or an original power supply system of the base station, and realizes energy storage in the valley period and discharge in the peak period.

When the peak load shifting period is converted to the peak load shifting period, the peak load shifting monitoring module outputs a discharge signal to the peak load shifting energy storage power supply system, the peak load shifting monitoring module controls a load full-power-down control switch (a primary power-down switch and/or a secondary power-down switch) of an original power supply system of the base station to be switched off, a bus control switch of the peak load shifting power supply system is switched on, a second alternating current intelligent switch is switched off from a first alternating current intelligent switch, and the peak load shifting power supply system discharges all loads of the base station. The input end of the first alternating current intelligent switch and the input end of the second alternating current intelligent switch are both connected with an external mains supply. As shown in fig. 8, when the primary power down switch and the secondary power down switch of the original power system of the base station are connected in series, the peak clipping and valley filling monitoring module controls the secondary power down switch of the original power system of the base station to be turned off; as shown in fig. 9, when the primary power down switch and the secondary power down switch of the original power system of the base station are connected in parallel, the peak clipping and valley filling monitoring module controls the primary power down switch and the secondary power down switch of the original power system of the base station to be turned off.

When the peak period is shifted to the valley period, the peak clipping and valley filling monitoring module outputs an energy storage signal to the peak clipping and valley filling energy storage power supply system, the peak clipping and valley filling monitoring module controls a load full-power-down control switch (a primary power-down switch and/or a secondary power-down switch) of the original power supply system of the base station to be closed, a bus control switch of the peak clipping and valley filling power supply system is switched off, a second alternating-current intelligent switch and a first alternating-current intelligent switch are closed, the original power supply system of the base station supplies power to all loads of the base station (in the stage, the original power supply system power supply mode of the base station can adopt the original working mode, for example, the external mains supply is preferentially adopted when external mains supply exists), and the external power grid charges an energy storage battery of the peak clipping and valley filling power supply system until the energy storage battery is fully charged. When a primary down switch and a secondary down switch of an original power supply system of a base station are connected in series, a peak clipping and valley filling monitoring module controls the secondary down switch of the original power supply system of the base station to be closed; when a primary down electric switch and a secondary down electric switch of the original power supply system of the base station are connected in parallel, the peak clipping and valley filling monitoring module controls the primary down electric switch and the secondary down electric switch of the original power supply system of the base station to be closed.

The first structure adopts a scheme II: the first control unit is an original switch power supply monitoring unit of the base station, the peak clipping and valley filling monitoring module is connected with a control end of the original switch power supply monitoring unit of the base station, and the original switch power supply monitoring unit of the base station is arranged on an energy storage path of an original power supply system of the base station and controls the output on-off of a rectification module of the original power supply system of the base station. The second control unit is a switch power supply monitoring unit of the peak clipping and valley filling power supply system, the peak clipping and valley filling monitoring module is connected with a control end of the switch power supply monitoring unit of the peak clipping and valley filling power supply system, the switch power supply monitoring unit of the peak clipping and valley filling power supply system is arranged on an energy storage path of the peak clipping and valley filling power supply system, and the switch power supply monitoring unit receives a command of the peak clipping and valley filling monitoring module and controls the output on-off of a rectification module of the peak clipping and valley filling power supply system through communication protocol analysis.

The second preferred scheme further comprises a first intelligent switch unit and a second intelligent switch unit, the peak clipping and valley filling monitoring module is electrically connected with a control end of the first intelligent switch unit, and the first intelligent switch unit is arranged on an energy storage path of an original power supply system of the base station. The peak clipping and valley filling monitoring module is electrically connected with a control end of the second intelligent switch unit, and the second intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system. The first intelligent switch unit is arranged on the input side or the output side of an original switch power supply rectification module of the base station, and the second intelligent switch unit is arranged on the input side or the output side of a rectification module of a peak clipping and valley filling power supply system. As shown in fig. 10, when the intelligent switch unit is located at the input side of the rectifier module, the intelligent switch unit is an alternating current intelligent switch unit; when the intelligent switch unit is positioned on the output side of the rectifier module, the intelligent switch unit is a direct-current intelligent switch unit.

In this embodiment, the intelligent switch unit may be a single switch or a set of a plurality of parallel sub-switches, and when a set of a plurality of parallel sub-switches is used, each sub-switch is disposed on one to-be-controlled line.

When the peak load shifting power supply system is switched from the valley period to the peak period, the peak load shifting monitoring module outputs a discharge signal to the peak load shifting energy storage power supply system, the peak load shifting monitoring module controls the load full-down control switch of the original power supply system of the base station to be switched off (when the primary down switch and the secondary down switch of the original power supply system of the base station are connected in series, the load full-down control switch is the secondary down switch, when the primary down switch and the secondary down switch of the original power supply system of the base station are connected in parallel, the load full-down control switch is the primary down switch and the secondary down switch), the bus control switch of the peak load shifting power supply system is switched on, the original switch power supply monitoring unit of the base station, the peak load shifting power supply system switch power supply monitoring unit, the second alternating current intelligent switch unit and the first alternating current intelligent switch unit are switched off, and the peak load shifting power supply system discharges to all loads of the base station. The input end of the first alternating current intelligent switch unit and the input end of the second alternating current intelligent switch unit are both connected with an external commercial power.

When the peak period is shifted to the valley period, the peak clipping and valley filling monitoring module outputs an energy storage signal to the peak clipping and valley filling energy storage power supply system, the peak clipping and valley filling monitoring module controls the load full-power-down control switch of the original power supply system of the base station to be closed, the bus control switch of the peak clipping and valley filling power supply system is switched off, the original switch power supply monitoring unit, the peak clipping and valley filling power supply system switch power supply monitoring unit, the second alternating-current intelligent switch unit and the first alternating-current intelligent switch unit of the base station are switched on, and the original power supply system of the base station supplies power to all loads of the base station (in the stage, the original power supply system power supply mode of the base station can adopt the original working mode, for example, the external commercial power supply is preferentially adopted when external commercial power exists), and the external power grid charges the energy storage battery of the peak clipping and valley filling power supply system until the energy storage battery is fully charged.

If the peak period is in power failure of the external commercial power, the load of the base station is still discharged by the peak clipping and valley filling power supply system, and if the external commercial power is still not recovered when the peak period is shifted to the valley period, the power is automatically switched to the original standby power battery for power supply. If the energy storage battery is not fully charged due to power failure in the valley period, the peak clipping and valley filling monitoring module calculates the peak clipping and discharging time of the energy storage battery, and the discharging priority order of the energy storage battery is as follows: the method comprises the steps that a peak period, a peak period and a peak balancing period are carried out, the residual peak period when the discharge time is short is carried out, part or all of original rectifier modules of a base station are closed, the power supply of an original power supply system of the base station is switched to, when the capacity of an original standby battery and the capacity of a peak load shifting power supply system are completely consumed in the peak period, an alternating current input switch of the original power supply system is closed, and an oil engine supplies power to a load of the base station.

The peak clipping and valley filling power supply system with the first structure further comprises a DC/DC output unit, a current detection unit (such as a current Hall sensor and the like) is arranged at the output end of the battery pack of the original power supply system of the base station, and the output end of the current detection unit is electrically connected with the output voltage control end of the DC/DC output unit. In a preferred scheme of the method, during the peak period, the output voltage of the peak clipping and valley filling power supply system is adjusted to be higher than the bus voltage of the original power supply system of the base station through the DC/DC output unit, so that the peak clipping and valley filling power supply system supplies power to the load of the base station. And during the valley period, the output voltage of the peak clipping and valley filling power supply system is adjusted to be lower than the bus voltage of the original power supply system of the base station through the DC/DC output unit, the peak clipping and valley filling power supply system stops supplying power to the base station load, and the original power supply system of the base station is controlled to supply power to the base station load.

As shown in fig. 11, when the maximum capacity expansion capability of the original switching power supply system of the base station is sufficient to support the charging capacity requirement of the peak-clipping valley-filling energy-storage power supply system, the peak-clipping valley-filling energy-storage power supply system may also adopt a second structure to implement peak-clipping valley-filling.

The structure II is as follows: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power system, the peak clipping and valley filling monitoring module is electrically connected with a control end of a control unit, and the control unit is arranged on an energy storage path of the peak clipping and valley filling power system.

The peak clipping and valley filling power supply system with the second structure comprises an original battery pack of a base station and a plurality of capacity expansion energy storage battery packs, wherein the original battery pack of the base station and the plurality of capacity expansion energy storage battery packs are connected with a battery combiner in parallel, a peak clipping and valley filling monitoring module monitors the peak period and the valley period of power consumption of a power grid and controls the original battery pack of the base station and the plurality of capacity expansion energy storage battery packs to work so as to realize energy storage and peak period discharge in the valley period, the specific battery combiner comprises a plurality of combining branches in parallel, each branch comprises a switch unit and a DC/DC output unit (the voltage control of the specific combiner can adopt the prior art and is not described herein in detail), for example, each battery pack in the peak clipping and valley filling power supply system is connected with a combining branch, by controlling the opening and closing of different switches in the battery combiner, therefore, the charging and discharging management of the standby battery pack and the capacity-expansion energy-storage battery pack in different peak-valley periods is controlled.

The second structure adopts the first scheme: the control unit is the intelligent switch unit, and the control end that the millet monitored control module was filled in to the peak clipping is connected with the intelligent switch unit, and the intelligent switch unit sets up on the energy storage circuit of the valley filling electrical power generating system is filled in to the peak clipping, and when the intelligent switch unit was exchanged the intelligent switch unit, exchange the outer commercial power of the input connection of intelligent switch unit, exchange the output of intelligent switch unit and be connected with the input of the original rectifier module of basic station and the input of dilatation rectifier module respectively. When the intelligent switch unit is a direct current intelligent switch unit, the direct current intelligent switch unit is arranged on the output sides of the rectification module of the original power system of the base station and the rectification module of the peak clipping and valley filling power system.

When the peak load shifting is carried out from the valley period to the peak period, the peak load shifting monitoring module outputs a discharge signal to the peak load shifting energy storage power supply system, the peak load shifting monitoring module controls the alternating current intelligent switch to be switched off and controls the switch corresponding to the expansion energy storage battery pack in the combiner to be switched on, and the expansion energy storage battery pack of the peak load shifting power supply system discharges all loads of the base station. When the peak period is shifted to the valley period, the peak clipping and valley filling monitoring module outputs an energy storage signal to the peak clipping and valley filling energy storage power supply system, the peak clipping and valley filling monitoring module controls the AC intelligent switch to be switched on, an original power supply system of a base station of the peak clipping and valley filling power supply system (the original power supply system of the base station comprises an original battery pack and an external mains supply for supplying power, the external mains supply can supply power for all loads of the base station, and the energy storage battery pack of the peak clipping and valley filling power supply system is charged by the external mains supply until the energy storage battery pack is fully charged.

The second structure adopts a second scheme: the control unit is a switching power supply monitoring unit, the peak clipping and valley filling monitoring module is connected with a control end of the switching power supply monitoring unit, and the switching power supply monitoring unit is arranged on an energy storage path of the peak clipping and valley filling power supply system and controls the output on-off of an original rectification module and an expansion rectification module of the base station. And the second preferred scheme further comprises an intelligent switch unit, the peak clipping and valley filling monitoring module is electrically connected with a control end of the intelligent switch unit, the intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system, and the intelligent switch unit is arranged on an input side or an output side of the rectification module. When the intelligent switch unit is an alternating current intelligent switch unit, the input end of the alternating current intelligent switch unit is connected with an external commercial power, and the output end of the alternating current intelligent switch unit is respectively electrically connected with the input end of the original rectifier module of the base station and the input end of the capacity expansion rectifier module. When the intelligent switch unit is a direct current intelligent switch unit, the direct current intelligent switch unit is arranged on the output sides of the rectification module of the original power system of the base station and the rectification module of the peak clipping and valley filling power system.

When the peak load shifting period is shifted to the peak load shifting period, the peak load shifting monitoring module outputs a discharge signal to the peak load shifting energy storage power supply system, the peak load shifting monitoring module controls the control unit to be switched off and controls the switch corresponding to the expansion energy storage battery pack in the combiner to be switched on, and the expansion energy storage battery pack of the peak load shifting power supply system discharges all loads of the base station. When the peak period is shifted to the valley period, the peak clipping and valley filling monitoring module outputs an energy storage signal to the peak clipping and valley filling energy storage power supply system, the peak clipping and valley filling monitoring module controls the control unit to be closed, an original power supply system of a base station of the peak clipping and valley filling power supply system (the original power supply system of the base station comprises an original battery pack and an external mains supply for supplying power, and the external power grid charges the energy storage battery pack of the peak clipping and valley filling power supply system until the energy storage battery pack is fully charged.

If the peak period is in power failure of the external mains supply, the base station load is still discharged by the expansion energy storage battery group, and if the external mains supply is still not recovered when the peak period is shifted to the valley period, the original standby battery is automatically switched to supply power (specifically, the on-off of a corresponding switch in the combiner can be controlled). If the expansion energy storage battery is not fully charged due to the power failure in the valley period, the peak clipping and valley filling monitoring module calculates the peak clipping and discharging duration of the energy storage battery, and the discharging priority sequence of the expansion energy storage battery is as follows: the method comprises the steps that a peak period, a peak period and a peak balancing period are carried out, the residual peak period when the discharging time is short is switched to the original standby battery system for power supply, when the capacity of the original standby battery and the capacity of a peak load shifting power supply system are consumed completely in the peak period, an alternating current input switch of the original power supply system is closed, and an oil engine supplies power to a base station load.

As shown in fig. 12, when the maximum capacity expansion capability of the original switching power supply system of the base station is sufficient to support the charging capacity requirement of the peak-valley energy storage system, and the standby battery of the original base station can be configured and integrated to other base stations for use, the peak clipping and valley filling can be implemented by using the third structure.

The structure is three: the standby power system comprises a peak clipping and valley filling monitoring module and a peak clipping and valley filling power supply system, the peak clipping and valley filling monitoring module is electrically connected with a control end of an alternating current intelligent switch, and the alternating current intelligent switch is arranged on an energy storage path of the peak clipping and valley filling power supply system.

The peak clipping and valley filling power supply system with the third structure adopts a new battery pack or an old battery pack with the same model, and the peak clipping and valley filling monitoring module monitors the peak period and the valley period of the power consumption of the power grid, controls the work of the battery pack and realizes the energy storage in the valley period and the discharge in the peak period. The capacity expansion module of the second structure and the third structure comprises a rectification unit which is used for rectification when the peak clipping and valley filling power supply system is charged.

The third structure adopts the first scheme: the control unit is an intelligent switch unit, the peak clipping and valley filling monitoring module is electrically connected with the control end of the intelligent switch unit, and the intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system. When the intelligent switch unit is an alternating current intelligent switch unit, the input end of the alternating current intelligent switch unit is connected with an external commercial power, and the output end of the alternating current intelligent switch unit is respectively connected with the input end of the original rectifier module of the base station and the input end of the capacity expansion rectifier module. When the intelligent switch unit is a direct current intelligent switch unit, the direct current intelligent switch unit is arranged on the output sides of the rectification module of the original power system of the base station and the rectification module of the peak clipping and valley filling power system.

During the peak period, the peak clipping and valley filling monitoring module outputs a discharge signal to the peak clipping and valley filling power supply system to control the AC intelligent switch to be switched off, and the battery pack of the peak clipping and valley filling power supply system is wholly discharged. During the valley period, the peak clipping and valley filling monitoring module outputs a charging signal to the peak clipping and valley filling power supply system to control the AC intelligent switch to be switched on, so that the battery pack of the peak clipping and valley filling power supply system is integrally charged.

The third structure adopts the second scheme: the control unit is a switching power supply monitoring unit, the peak clipping and valley filling monitoring module is electrically connected with a control end of the switching power supply monitoring unit, and the switching power supply monitoring unit is arranged on an energy storage path of the peak clipping and valley filling power supply system and controls the output on-off of an original rectification module and an expansion rectification module of the base station. And the second preferred scheme further comprises an intelligent switch unit, the peak clipping and valley filling monitoring module is electrically connected with a control end of the intelligent switch unit, the intelligent switch unit is arranged on an energy storage path of the peak clipping and valley filling power supply system, and the intelligent switch unit is arranged on an input side or an output side of the rectification module.

During the peak period, the peak clipping and valley filling monitoring module outputs a discharge signal to the peak clipping and valley filling power supply system, the control unit is controlled to be disconnected, and the battery pack of the peak clipping and valley filling power supply system is wholly discharged. During the valley period, the peak clipping and valley filling monitoring module outputs a charging signal to the peak clipping and valley filling power supply system, the control unit is controlled to be closed, and the battery pack of the peak clipping and valley filling power supply system is integrally charged.

If the peak clipping and valley filling power supply system is not fully charged due to power failure in the valley period, the peak clipping and valley filling monitoring module calculates the peak clipping and discharging time of the energy storage battery at the moment, and the priority order of the peak clipping and valley filling power supply system is as follows: the method comprises a peak cutting period, a peak high period and a peak leveling period, wherein when the capacitance of a peak load shifting power supply system is consumed completely in the peak cutting period, an alternating current input switch of an original power supply system is closed, and an oil engine supplies power to a base station load.

The invention also provides a power supply method for the base station power supply system, which comprises one of the following methods:

the method comprises the following steps: when the peak period is shifted to the peak period, the peak clipping and valley filling monitoring module outputs a discharge signal to the peak clipping and valley filling energy storage power supply system; the peak clipping and valley filling monitoring module controls a load full-power-down control switch (a primary power-down switch and/or a secondary power-down switch) of an original power supply system of the base station to be switched off, a bus control switch of the peak clipping and valley filling power supply system is switched on, a second control unit and a first control unit are switched off, and the peak clipping and valley filling power supply system discharges to all loads of the base station; when a primary down switch and a secondary down switch of an original power supply system of a base station are connected in series, a peak clipping and valley filling monitoring module controls the secondary down switch of the original power supply system of the base station to be switched off; when a primary down electric switch and a secondary down electric switch of the original power supply system of the base station are connected in parallel, the peak clipping and valley filling monitoring module controls the primary down electric switch and the secondary down electric switch of the original power supply system of the base station to be disconnected.

When the peak period is shifted to the valley period, the peak clipping and valley filling monitoring module outputs an energy storage signal to the peak clipping and valley filling energy storage power supply system; the load full-power-down control switch (primary power-down switch and/or secondary power-down switch) of the original power system of the base station is controlled to be closed by the peak clipping and valley filling monitoring module, the bus control switch of the peak clipping and valley filling power system is switched off, the second control unit and the first control unit are closed, the original power system of the base station supplies power to all loads of the base station, and the external power grid charges the energy storage battery of the peak clipping and valley filling power system until the energy storage battery is fully charged. When a primary down switch and a secondary down switch of an original power supply system of a base station are connected in series, a peak clipping and valley filling monitoring module controls the secondary down switch of the original power supply system of the base station to be closed; when a primary down electric switch and a secondary down electric switch of the original power supply system of the base station are connected in parallel, the peak clipping and valley filling monitoring module controls the primary down electric switch and the secondary down electric switch of the original power supply system of the base station to be closed.

The second method comprises the following steps: when the peak load is shifted from the load period to the peak period, the peak load shifting monitoring module outputs a discharge signal to the peak load shifting energy storage power supply system, the peak load shifting monitoring module controls the control unit to be switched off, and the capacity expansion energy storage battery group of the peak load shifting power supply system discharges all loads of the base station;

the third method comprises the following steps: during the peak period, the peak clipping and valley filling monitoring module outputs a discharge signal to the peak clipping and valley filling power supply system, the control unit is controlled to be disconnected, and the battery pack of the peak clipping and valley filling power supply system is wholly discharged. During the valley period, the peak clipping and valley filling monitoring module outputs a charging signal to the peak clipping and valley filling power supply system, the control unit is controlled to be closed, and the battery pack of the peak clipping and valley filling power supply system is integrally charged.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

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5G intelligent power management system, power supply system and power supply method of stock base station

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