阅读说明：本技术 一种具有独立能量回收路径的超级电容系统 (Super capacitor system with independent energy recovery path ) 是由 黄琪枫 庄杰智 成慧 于 2019-09-26 设计创作，主要内容包括：本发明提供的一种具有独立能量回收路径的超级电容系统,包括电源、外部设备,第一供电电路、第二供电电路、采样电路、微处理器、通信电路、能量回收电路和第一MOS管控电路；本发明提供的一种具有独立能量回收路径的超级电容系统,在超级电容系统上设置能量回收电路,实现了系统能量的回收；通过设置第一供电电路、第二供电电路两个供电电路,一路作为系统正常的供电使用,另一路与能量回收电路连接,错开了能量回收路径和能量输出的路径,适用于对电容进行稳压再输出；通过采样电路对系统的电压电流信息进行采集,由微处理器对第一供电电路、第二供电电路的充电功率进行调整控制,实现对超级电容的稳定充电。(The invention provides a super-capacitor system with an independent energy recovery path, which comprises a power supply, external equipment, a first power supply circuit, a second power supply circuit, a sampling circuit, a microprocessor, a communication circuit, an energy recovery circuit and a first MOS (metal oxide semiconductor) control circuit, wherein the first power supply circuit is connected with the second power supply circuit; according to the super-capacitor system with the independent energy recovery path, the energy recovery circuit is arranged on the super-capacitor system, so that the recovery of system energy is realized; the energy recovery circuit comprises a first power supply circuit, a second power supply circuit, a first energy recovery circuit, a second energy recovery circuit and a capacitor, wherein the first power supply circuit and the second power supply circuit are arranged; the voltage and current information of the system is collected through the sampling circuit, and the charging power of the first power supply circuit and the charging power of the second power supply circuit are adjusted and controlled through the microprocessor, so that stable charging of the super capacitor is realized.)

1. An ultracapacitor system with an independent energy recovery path, comprising a power supply and an external device, wherein the ultracapacitor system is characterized in that: the power supply circuit also comprises a first power supply circuit, a second power supply circuit, a sampling circuit, a microprocessor, a communication circuit, an energy recovery circuit and a first MOS (metal oxide semiconductor) management and control circuit; wherein:

the power supply is electrically connected with the input ends of the first power supply circuit and the second power supply circuit;

the first power supply circuit and the second power supply circuit supply power to the external equipment through the first MOS control circuit;

the sampling circuit is used for collecting voltage and current signals of the first power supply circuit, the second power supply circuit and external equipment and transmitting a collection result to the microprocessor;

the output end of the microprocessor is electrically connected with the power control ends of the first power supply circuit and the second power supply circuit and is in communication connection with the external equipment through the communication circuit;

the external equipment is provided with an energy recovery circuit, and the energy recovery circuit exchanges energy with the external equipment;

the second power supply circuit charges the energy recovery circuit.

2. The supercapacitor system with independent energy recovery path according to claim 1, wherein: the first power supply circuit comprises a first voltage reduction module, a first digital potentiometer module and a first backflow prevention sub-circuit; wherein:

the input end of the first voltage reduction module is electrically connected with the power supply;

the control end of the first digital potentiometer module is electrically connected with the microprocessor;

the output end of the first digital potentiometer module is electrically connected with the input end of the first voltage reduction module;

the output end of the first voltage reduction module is electrically connected with the input end of the first backflow prevention sub-circuit;

the output end of the first backflow preventing sub-circuit is electrically connected with the external equipment;

the first backflow prevention sub-circuit is electrically connected with the sampling circuit.

3. The supercapacitor system with independent energy recovery path according to claim 2, wherein: the second power supply circuit comprises a second boosting module, a second voltage reducing module, a second digital potentiometer module and a second backflow preventing sub-circuit; wherein:

the input end of the second boosting module is electrically connected with the power supply;

the output end of the second boosting module is electrically connected with the input end of the second voltage reducing module;

the control end of the second digital potentiometer module is electrically connected with the microprocessor;

the output end of the second digital potentiometer module is electrically connected with the input end of the second voltage reduction module;

the output end of the second voltage reduction module is electrically connected with the input end of the second backflow prevention sub-circuit and the charging end of the energy recovery circuit;

the output end of the second backflow preventing sub-circuit is electrically connected with the external equipment;

the second backflow prevention sub-circuit is electrically connected with the sampling circuit.

4. The supercapacitor system according to claim 3, wherein the supercapacitor system having an independent energy recovery path comprises: the sampling circuit comprises a voltage sampling sub-circuit and a current sampling sub-circuit; wherein:

the input end of the voltage sampling sub-circuit collects voltage signals of the external equipment and the energy recovery circuit;

the output end of the voltage sampling sub-circuit is electrically connected with the microprocessor;

the input end of the current sampling sub-circuit collects current signals on the external equipment, the first backflow preventing sub-circuit and the second backflow preventing sub-circuit;

the output end of the current sampling sub-circuit is electrically connected with the microprocessor.

5. The supercapacitor system according to claim 4, wherein the supercapacitor system having an independent energy recovery path comprises: the microprocessor adopts an MCU of which the model is STM32F407VET 6.

6. The supercapacitor system according to claim 5, wherein the supercapacitor system having an independent energy recovery path comprises: the communication circuit is a CAN communication circuit.

7. The supercapacitor system according to any one of claims 1 to 6, wherein the supercapacitor system having an independent energy recovery path comprises: the energy recovery circuit comprises a second MOS (metal oxide semiconductor) pipe control sub-circuit, a super capacitor bank and a third MOS pipe control sub-circuit; wherein:

the input end of the second MOS control sub-circuit is electrically connected with the external equipment;

the output end of the second MOS control sub-circuit is electrically connected with the charging end of the super capacitor bank;

the output end of the second power supply circuit is electrically connected with the charging end of the super capacitor bank;

the output end of the super capacitor bank is electrically connected with the input end of the third MOS control sub-circuit;

and the output end of the third MOS control sub-circuit is electrically connected with the external equipment.

8. The supercapacitor system according to claim 7, wherein the supercapacitor system having an independent energy recovery path comprises: the display module is electrically connected with the output end of the microprocessor.

Technical Field

The present invention relates to the field of robots or electric vehicles, and more particularly to a supercapacitor system with an independent energy recovery path.

Background

In the field of robots or power vehicles, when the robot makes a jump or other sudden movement and the power vehicle is instantaneously accelerated, considerable power is consumed, while in other time periods, the consumed power is relatively small, and therefore the power provided by the battery fluctuates relatively greatly, which has an adverse effect on the life of the battery. Sometimes it is difficult for the battery to provide high power, limiting the starting speed, acceleration movement of the robot or electric vehicle. The super capacitor can ask for energy from the battery with lower power, and when the power of the power consumption equipment is suddenly increased, the super capacitor can provide very high power in a short time, so that the output power of the battery is kept at a lower and relatively constant level in the whole process, the service life of the battery is prolonged, and the equipment has better instant acceleration performance.

In the existing super capacitor system, the structure and the function are various, and the existing super capacitor system has no energy recovery function, so that the utilization rate of battery energy is low; some super capacitor systems do not perform charging power control, once a battery is powered on, the super capacitor is charged by fixed current, the charging power gradually rises along with the increase of the electric quantity and the rise of the voltage of the super capacitor, and the charging power cannot be strictly controlled; although there is an energy recovery effect, the recovery path and the energy output path are the same path, and this structure is only suitable for the case of direct output of the capacitor, and if the latter stage needs to stabilize the voltage and then output the capacitor, an independent recovery path must be adopted.

Disclosure of Invention

The invention provides a super capacitor system with an independent energy recovery path, aiming at overcoming the technical defects that the existing super capacitor system can not realize energy recovery and charging power control at the same time and has an independent recovery path.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a super capacitor system with an independent energy recovery path comprises a power supply, external equipment, a first power supply circuit, a second power supply circuit, a sampling circuit, a microprocessor, a communication circuit, an energy recovery circuit and a first MOS (metal oxide semiconductor) management and control circuit; wherein:

the power supply is electrically connected with the input ends of the first power supply circuit and the second power supply circuit;

the first power supply circuit and the second power supply circuit supply power to the external equipment through the first MOS control circuit;

the sampling circuit is used for collecting voltage and current signals of the first power supply circuit, the second power supply circuit and external equipment and transmitting a collection result to the microprocessor;

the output end of the microprocessor is electrically connected with the power control ends of the first power supply circuit and the second power supply circuit and is in communication connection with the external equipment through the communication circuit;

the external equipment is provided with an energy recovery circuit, and the energy recovery circuit exchanges energy with the external equipment;

the second power supply circuit charges the energy recovery circuit.

In the scheme, the energy recovery circuit is arranged on the super capacitor system, so that the recovery of system energy is realized; the energy recovery circuit comprises a first power supply circuit, a second power supply circuit, a first energy recovery circuit, a second energy recovery circuit and a capacitor, wherein the first power supply circuit and the second power supply circuit are arranged; the voltage and current information of the system is collected through the sampling circuit, and the charging power of the first power supply circuit and the charging power of the second power supply circuit are adjusted and controlled through the microprocessor, so that stable charging of the super capacitor is realized.

The first power supply circuit comprises a first voltage reduction module, a first digital potentiometer module and a first backflow prevention sub-circuit; wherein:

the input end of the first voltage reduction module is electrically connected with the power supply;

the control end of the first digital potentiometer module is electrically connected with the microprocessor;

the output end of the first digital potentiometer module is electrically connected with the input end of the first voltage reduction module;

the output end of the first voltage reduction module is electrically connected with the input end of the first backflow prevention sub-circuit;

the output end of the first backflow preventing sub-circuit is electrically connected with the external equipment;

the first backflow prevention sub-circuit is electrically connected with the sampling circuit.

The second power supply circuit comprises a second boosting module, a second voltage reducing module, a second digital potentiometer module and a second backflow preventing sub-circuit; wherein:

the input end of the second boosting module is electrically connected with the power supply;

the output end of the second boosting module is electrically connected with the input end of the second voltage reducing module;

the control end of the second digital potentiometer module is electrically connected with the microprocessor;

the output end of the second digital potentiometer module is electrically connected with the input end of the second voltage reduction module;

the output end of the second voltage reduction module is electrically connected with the input end of the second backflow prevention sub-circuit and the charging end of the energy recovery circuit;

the output end of the second backflow preventing sub-circuit is electrically connected with the external equipment;

the second backflow prevention sub-circuit is electrically connected with the sampling circuit.

In the scheme, the microprocessor is used as a processing core, the voltage and current information of the system is detected in real time, and the control of the output power of the first voltage reduction module and the output power of the second voltage reduction module are indirectly realized by controlling the resistance values of the first digital potentiometer module and the second digital potentiometer module; when the second power supply circuit charges the energy recovery circuit, the charging power for charging the energy recovery circuit is provided by controlling the maximum output current of the second voltage reduction module, so that the energy recovery circuit is prevented from keeping low charging power when the power consumption of external equipment is high.

The sampling circuit comprises a voltage sampling sub-circuit and a current sampling sub-circuit; wherein:

the input end of the voltage sampling sub-circuit collects voltage signals of the super capacitor bank on the external equipment and the energy recovery circuit;

the output end of the voltage sampling sub-circuit is electrically connected with the microprocessor;

the input end of the current sampling sub-circuit collects current signals on the external equipment, the first backflow preventing sub-circuit and the second backflow preventing sub-circuit;

the output end of the current sampling sub-circuit is electrically connected with the microprocessor.

In the scheme, the voltage sampling sub-circuit and the current sampling sub-circuit are arranged to acquire voltage and current information of the system, and the microprocessor is used for regulating and controlling the energy recovery circuit.

The microprocessor adopts an MCU of which the model is STM32F407VET 6.

Wherein, the communication circuit is a CAN communication circuit.

The energy recovery circuit comprises a second MOS (metal oxide semiconductor) control sub-circuit, a super capacitor bank and a third MOS control sub-circuit; wherein:

the input end of the second MOS control sub-circuit is electrically connected with the external equipment;

the output end of the second MOS control sub-circuit is electrically connected with the charging end of the super capacitor bank;

the output end of the second power supply circuit is electrically connected with the charging end of the super capacitor bank;

the output end of the super capacitor bank is electrically connected with the input end of the third MOS control sub-circuit;

and the output end of the third MOS control sub-circuit is electrically connected with the external equipment.

In the scheme, the system is provided with an independent energy recovery circuit for energy recovery, so that the recovery of the system energy is realized, and instantaneous high power is provided for external equipment by utilizing the super capacitor bank; the super capacitor bank asks for power from the power supply with lower power, and when the power of the external equipment is suddenly increased, the super capacitor bank can provide high power in a short time, so that the output power of the power supply is kept at a lower and relatively constant level in the whole process, the service life of the battery is prolonged, and the equipment has better instant accelerated announcement performance.

The display module is electrically connected with the output end of the microprocessor.

In the above scheme, the display module adopts an OLED display screen, and displays the acquired information such as current and voltage through the display module.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that:

according to the super-capacitor system with the independent energy recovery path, the energy recovery circuit is arranged on the super-capacitor system, so that the recovery of system energy is realized; the energy recovery circuit comprises a first power supply circuit, a second power supply circuit, a first energy recovery circuit, a second energy recovery circuit and a capacitor, wherein the first power supply circuit and the second power supply circuit are arranged; the voltage and current information of the system is collected through the sampling circuit, and the charging power of the first power supply circuit and the charging power of the second power supply circuit are adjusted and controlled through the microprocessor, so that stable charging of the super capacitor is realized.

Drawings

FIG. 1 is a schematic diagram of the structural connection of a super capacitor system;

FIG. 2 is a schematic circuit diagram illustrating the connection between a first power supply circuit and a second power supply circuit;

FIG. 3 is a schematic diagram of a sampling circuit connection;

FIG. 4 is a schematic diagram of the energy recovery circuit;

FIG. 5 is a schematic circuit diagram of a voltage sampling sub-circuit;

FIG. 6 is a schematic circuit diagram of a current sampling sub-circuit;

FIG. 7 is a schematic diagram of a second MOS transistor control circuit;

FIG. 8 is a schematic diagram of a backflow prevention sub-circuit;

FIG. 9 is a schematic diagram of an energy recovery circuit;

fig. 10 is a schematic diagram of a CAN communication circuit.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent;

for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;

it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.