阅读说明：本技术 一种箱式变电站的运行故障报警方法及系统 (Operation fault alarm method and system for box-type substation ) 是由 田川 孙维 王璇 孙中光 戴书球 谭一川 张建鑫 杨朝晖 彭迈 李勇 于 2021-08-31 设计创作，主要内容包括：本发明公开一种箱式变电站的运行故障报警方法及系统,属于变电站检测技术领域,提出以下方案：一种箱式变电站的运行故障报警方法,包括：对箱式变电站的高压开关状态实时监控；根据监控的箱式变电站运行故障状态进行实时报警；根据监控的箱式变电站运行故障状态生成运行故障表；将实时报警的信息和运行故障表上传至后台服务器进行运算分析。本发明技术方案避免箱式变电站故障发生导致的生活中人身安全、经济损失,提升箱式变电站运行的可靠性。(The invention discloses an operation fault alarm method and system for a box-type substation, which belong to the technical field of substation detection and provide the following schemes: an operation fault alarm method for a box-type substation comprises the following steps: monitoring the state of a high-voltage switch of the box-type substation in real time; alarming in real time according to the operation fault state of the monitored box-type substation; generating an operation fault table according to the monitored operation fault state of the box-type substation; and uploading the real-time alarm information and the operation fault table to a background server for operation and analysis. According to the technical scheme, personal safety and economic loss in life caused by the fault of the box-type substation are avoided, and the operation reliability of the box-type substation is improved.)

1. An operation fault alarm method of a box-type substation is characterized by comprising the following steps:

monitoring the state of a high-voltage switch of the box-type substation in real time;

alarming in real time according to the operation fault state of the monitored box-type substation;

generating an operation fault table according to the monitored operation fault state of the box-type substation;

and uploading the real-time alarm information and the operation fault table to a background server for operation and analysis.

2. The operation failure alarm method of a box-type substation according to claim 1, wherein the operation failure table includes failure alarm generation time, station number, failure loop name and alarm content of the box-type substation.

3. The operation fault alarming method of the box-type substation according to claim 2, wherein the step of uploading the real-time alarming information and the operation fault table to a background server for operational analysis further comprises:

acquiring the severity of the operation fault according to the operation analysis result;

and distributing workers with corresponding experience to maintain the box-type substation according to the severity of the operation fault.

4. The operation failure alarm method of the box-type substation according to claim 1, wherein the step of monitoring the high-voltage switch state of the box-type substation in real time comprises:

monitoring the state of a high-low voltage main breaker of a box-type substation in real time;

monitoring the state of a feeder circuit breaker of the box-type substation and a feeder circuit in real time;

and monitoring the internal temperature and the operating voltage phase loss of the box-type substation in real time.

5. The operational fault alarming method of the box-type substation according to claim 4, wherein the step of alarming in real time according to the monitored operational fault state of the box-type substation comprises:

the method comprises the following steps of (1) giving an alarm to the fault and displacement of a high-low voltage main breaker of a box-type substation;

the switch displacement alarm of the feeder circuit breaker state and the leakage alarm of the feeder circuit are carried out;

and alarming for abnormal internal temperature of the box-type substation and alarming for phase loss and unbalance of operating voltage of the box-type substation.

6. The operation fault alarm system of the box-type substation is characterized by comprising a fault detection alarm device, wherein the fault detection alarm device is connected with a plurality of cable lines, a circuit breaker, a current indicating circuit and a grounding device are connected to each cable line in series, and the fault detection alarm device comprises a current detection circuit, a voltage detection circuit, a temperature detection circuit, an alarm display circuit, a network transmission circuit and a background alarm display.

7. The operation failure alarm system of the box-type substation according to claim 6, characterized in that the failure detection alarm device comprises a current detection coil, an amplifying circuit, a judging circuit, an anti-jamming circuit and an output circuit, wherein the current detection coil is connected in series on each cable line, and a current signal of the cable line monitored by the current detection coil is transmitted to the failure detection alarm device through the amplifying circuit, the judging circuit, the anti-jamming circuit and the output circuit.

8. The operational failure alarm system of a box-type substation according to claim 6, characterized in that each cable line is provided with a current detection circuit, a voltage detection circuit and a temperature detection circuit, respectively.

9. The operational failure alarm system of the box-type substation according to claim 6, characterized in that the alarm display circuit is composed of an acquisition circuit, a display circuit, an audio output circuit, and an encoding circuit.

Technical Field

The invention relates to the technical field of transformer substation detection, in particular to an operation fault alarm method and system for a box-type transformer substation.

Background

The rapid development of urban modern construction in China and the continuous transformation and updating of urban power distribution systems are brought forward, a novel intelligent box-type substation organically combines the functions of high-voltage power receiving, transformer voltage reduction, low-voltage power distribution and the like, and has the characteristics of high integration degree, factory pre-installation, energy conservation, safety and the like, so that the novel intelligent box-type substation is widely applied to urban network construction and transformation.

The wide application of the box-type transformer substation makes the protection and alarm measures of the box-type transformer substation be very important, and in the actual engineering, the insulation resistance is reduced due to the aging of cable insulation or the invasion of moisture, so that the insulation resistance of a system to the ground is low or electric leakage occurs during normal operation; when the switch equipment is used for a long time, the leakage can be caused by the fact that the wiring board is wet; after the cable is buried and pressed, the heat of the cable is not easy to dissipate, and the cable is subjected to insulation aging after a long time to generate electric leakage; the insulation aging or damage is caused by long-time overload operation of the electrical equipment; the cable is soaked in water, and the insulation can leak electricity due to damp because of the acidic erosion and the infiltration of underground water; or some accident may cause the cable to be broken.

For example, in the prior art, a detection alarm device is connected to a plurality of cable lines, the detection alarm device includes a current detection portion, a local alarm display portion, a network transmission portion and a background machine display alarm portion, the current detection portion includes a detection device and a plurality of current detection circuits, the detection device is connected to the plurality of cable lines through the plurality of current detection circuits, the local alarm display portion, the network transmission portion and the background machine display alarm portion are respectively connected to the detection device, the local alarm display portion can display a cable line with a specific fault and give an audible and visual alarm, and meanwhile, the detection device transmits information to the network transmission portion. The cable fault detection device can detect a specific cable line with a fault in time, send out sound and light alarm and send out alarm information to related personnel through a network.

However, according to the scheme, the staff cannot conveniently master the relevant information of the fault, and accordingly, the specific position of the fault cannot be well mastered, so that the fault cannot be timely and pertinently overhauled, and the reliability is low.

Disclosure of Invention

The invention mainly aims to provide an operation fault alarm method and system for a box-type substation, and aims to improve the operation reliability of the box-type substation.

The basic scheme provided by the invention is as follows:

an operation fault alarm method for a box-type substation comprises the following steps:

monitoring the state of a high-voltage switch of the box-type substation in real time;

alarming in real time according to the operation fault state of the monitored box-type substation;

generating an operation fault table according to the monitored operation fault state of the box-type substation;

and uploading the real-time alarm information and the operation fault table to a background server for operation and analysis.

The principle and the effect of the basic scheme of the invention are as follows:

the high-voltage switch state in the box-type substation is monitored in real time through the arrangement of detection circuits, alarm circuits and communication circuits in the box-type substation, and real-time alarm is carried out according to the operation fault state of the monitored box-type substation, so that faults occurring in the box-type substation can be processed in time; meanwhile, an operation fault table is generated according to the operation fault state of the monitored box-type substation, so that a worker can conveniently master the relevant information of the fault of the box-type substation; in addition, real-time alarm information and an operation fault table are uploaded to a background server for operation and analysis, so that background workers can judge and summarize fault information of the box-type substation conveniently, and the situation that the generated fault occurs again or an evasion scheme is made for the generated fault is prevented.

In conclusion, the operation fault warning method of the box-type substation is used for early warning the fault of the box-type substation so as to remind workers, and therefore the danger of the workers can be reduced; and further, the economic loss is reduced by monitoring the cable leakage in the box-type transformer substation in real time. Meanwhile, due to the generation of the operation fault table of the box-type substation, workers can know the fault of the corresponding position in time conveniently, and the maintenance processing is carried out in a targeted manner, so that the influence on the work of the box-type substation is reduced.

Further, the operation fault table comprises fault alarm generation time, station number, fault loop name and alarm content of the box-type substation.

Through the generation of the operation fault table, the staff can conveniently master the specific fault information of the box-type substation, and corresponding measures are implemented in a targeted manner so as to rapidly solve the fault of the box-type substation.

Further, the step of uploading the real-time alarm information and the operation fault table to a background server for operation analysis further comprises the following steps:

acquiring the severity of the operation fault according to the operation analysis result;

and distributing workers with corresponding experience to maintain the box-type substation according to the severity of the operation fault.

The severity of the operation fault in the box-type substation is judged through the operation analysis result of the background server, and workers with corresponding work experience are distributed according to the severity of the operation fault for maintenance, so that the waste of workers caused by the fact that the distributed workers cannot maintain the operation fault is avoided, and the maintenance cost is reduced.

Further, the step of monitoring the state of the high-voltage switch of the box-type substation in real time comprises the following steps:

monitoring the state of a high-low voltage main breaker of a box-type substation in real time;

monitoring the state of a feeder circuit breaker of the box-type substation and a feeder circuit in real time;

and monitoring the internal temperature and the operating voltage phase loss of the box-type substation in real time.

The method and the device can be used for monitoring the high-voltage and low-voltage main circuit breakers, the feeder loops, the internal temperature and the operating voltage open phases of the box-type substation in real time, so that the fault positions of the box-type substation can be monitored more comprehensively.

Further, the step of alarming in real time according to the monitored operation fault state of the box-type substation comprises the following steps:

the method comprises the following steps of (1) giving an alarm to the fault and displacement of a high-low voltage main breaker of a box-type substation;

the switch displacement alarm of the feeder circuit breaker state and the leakage alarm of the feeder circuit are carried out;

and alarming for abnormal internal temperature of the box-type substation and alarming for phase loss and unbalance of operating voltage of the box-type substation.

The method has the advantages that the alarm is given after the faults are generated due to the phase loss of the high-voltage and low-voltage main circuit breakers, the feeder line loops, the internal temperature and the operating voltage of the box-type substation, and workers can master the fault position of the box-type substation more conveniently.

The invention also provides an operation fault alarm system of the box-type substation, which comprises a fault detection alarm device, wherein the fault detection alarm device is connected with a plurality of cable lines, each cable line is connected with a circuit breaker, a current indicating circuit and a grounding device in series, and the fault detection alarm device comprises a current detection circuit, a voltage detection circuit, a temperature detection circuit, an alarm display circuit, a network transmission circuit and a background alarm display.

Through the arrangement of the entity circuits such as the circuit breaker, the current indicating circuit, the grounding device, the current detecting circuit, the voltage detecting circuit, the temperature detecting circuit, the alarm display circuit, the network transmission circuit and the background alarm display in the operation fault alarm system of the box-type substation, the response speed of the box-type substation is improved, so that a worker can timely respond to fault alarm to maintain faults.

Further, the fault detection alarm device comprises a current detection coil, an amplifying circuit, a judging circuit, an anti-jamming circuit and an output circuit, wherein the current detection coil is connected in series on each cable line, and a current signal of the cable line monitored by the current detection coil is transmitted to the fault detection alarm device through the amplifying circuit, the judging circuit, the anti-jamming circuit and the output circuit.

Through the arrangement of the current detection coil, the amplifying circuit, the judging circuit, the anti-interference circuit and the output circuit in the fault detection alarm device, the fault detection alarm device can monitor the current of a cable line more accurately, and the monitoring reliability is improved.

Further, each cable line is provided with a current detection circuit, a voltage detection circuit and a temperature detection circuit.

Through the multiple detection circuits configured in each cable line, the comprehensive detection of the cable lines is facilitated, and the reliability of the cable lines in the box-type substation is improved.

Furthermore, the alarm display circuit is composed of an acquisition circuit, a display circuit, an audio output circuit and an encoding circuit.

Through the setting of each specific circuit in the alarm display circuit, the operation fault alarm system of the box-type substation can perform more accurate early warning on the operation fault.

Drawings

Fig. 1 is a schematic diagram of an internal structure of a terminal device according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of an embodiment of an operation fault alarm method for a box-type substation according to the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: a processor 1001, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005.

Fig. 1 is a schematic diagram of an internal structure of a terminal device according to an embodiment of the present invention.

It should be noted that fig. 1 is a schematic structural diagram of a hardware operating environment of the terminal device. The terminal equipment of the embodiment of the invention can be terminal equipment such as a PC, a portable computer and the like.

As shown in fig. 1, the terminal device may include: a processor 1001, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used for realizing connection and communication among the processor 1001, the user interface 1003, the network interface 1004, and the memory 1005. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), a tablet, a stylus pen, etc., and the optional user interface 1003 may also include a standard wired interface, a wireless interface. Network interface 1004 may optionally include a standard wired interface (e.g., RJ45 interface), a wireless interface (e.g., WIFI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the terminal device configuration of fig. 1 is not intended to be limiting of terminal devices and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a distributed task processing program. Among them, the operating system is a program that manages and controls the hardware and software resources of the sample terminal device, a handler that supports distributed tasks, and the execution of other software or programs.

In the terminal apparatus shown in fig. 1, the user interface 1003 is mainly used for data communication with each terminal; the network interface 1004 is mainly used for connecting a background server and performing data communication with the background server; and processor 1001 may be configured to call an operation failure alarm program of a box substation stored in memory 1005, and perform the following operations as shown in fig. 2:

step S100, monitoring the state of a high-voltage switch of a box-type substation in real time;

step S200, alarming in real time according to the operation fault state of the monitored box-type substation;

step S300, generating an operation fault table according to the operation fault state of the monitored box-type substation;

and S400, uploading the real-time alarm information and the operation fault table to a background server for operation and analysis.

In the embodiment, the high-voltage switch state in the box-type substation is monitored in real time through the arrangement of each detection circuit, each alarm circuit and each communication circuit in the box-type substation, and real-time alarm is carried out according to the operation fault state of the monitored box-type substation, so that faults occurring in the box-type substation can be processed in time; meanwhile, an operation fault table is generated according to the operation fault state of the monitored box-type substation, so that a worker can conveniently master the relevant information of the fault of the box-type substation; in addition, real-time alarm information and an operation fault table are uploaded to a background server for operation and analysis, so that background workers can judge and summarize fault information of the box-type substation conveniently, and the situation that the generated fault occurs again or an evasion scheme is made for the generated fault is prevented. It should be noted that, the operation failure alarm mainly is the inside high tension switchgear state real time monitoring of box-type substation and the warning that shifts, includes: fault alarm generation time, station number of box-type substation, fault position loop name, alarm content and other information; the specific alarm range is real-time monitoring, fault alarm and deflection alarm of the high-low voltage main circuit breaker; monitoring the state of a feeder circuit breaker in real time and alarming the switch displacement; the leakage of each feeder circuit is alarmed; alarming for abnormal temperature inside the box-type substation; and phase loss and unbalance of the operating voltage.

In the embodiment, the fault alarm information is mainly acquired and operated in real time through the intelligent sensing element arranged in the box-type substation, the related acquired data is uploaded to the background server, and the background server is used for operation, analysis and judgment, so that a user can respond to the fault alarm in time, the operation fault position of the box-type substation is maintained, and the fault recovery time is shortened.

In the embodiment, the shell of the electrical equipment is electrified due to insulation damage, and when a worker touches the shell, the personal electric shock accident can be caused. At this time, a part of the ground current will flow through the human body, and the value of the ground current is large to a certain extent, so that the injury and death of workers can be caused. When the staff touches the core wire exposed in the air due to puncture of the rubber sleeve cable outer sheath, a more serious personal electric shock can be caused, and at the moment, the payment early warning of the box-type substation is realized through the operation fault alarm method of the box-type substation so as to remind the staff and reduce the danger of the staff.

If the cable in the box-type substation is not timely discovered, fire disasters can be caused, the cable is burnt, and important load equipment stops production, so that economic losses which cannot be saved and even equipment can be burnt. Cable leakage can also cause short circuit accidents, resulting in greater electrical failures. In addition, the electric quantity leaked out by the cable can be calculated in the electric quantity used in a factory, so that the electric quantity consumption is increased, and the economic loss is caused. According to the scheme, the leakage of the cable in the box-type substation can be monitored in real time, and the economic loss is reduced.

The cable leaks electricity untimely and handles and can lead to taking place more serious harm, in case discover the electric leakage condition, should maintain at the very first time, should have a power failure to handle in order to ensure maintenance personal's safety in the maintenance process, can seriously influence production like this, has reduced the production efficiency of rate of equipment utilization and company to cause economic loss. Through the generation of box-type substation operation fault table in this scheme, the staff of being convenient for in time knows the trouble of relevant position to pertinence is handled, in order to reduce the influence to box-type substation work.

In addition, in order to achieve the purpose, the invention further provides an operation fault alarm system of the box-type substation, the operation fault alarm system of the box-type substation comprises a fault detection alarm device, the fault detection alarm device is connected with a plurality of cable lines, each cable line is connected with a circuit breaker, a current indicating circuit and a grounding device in series, and the fault detection alarm device comprises a current detection circuit, a voltage detection circuit, a temperature detection circuit, an alarm display circuit, a network transmission circuit and a background alarm display. Furthermore, the fault detection alarm device comprises a current detection coil, an amplifying circuit, a judging circuit, an anti-jamming circuit and an output circuit, wherein the current detection coil is connected in series on each cable line, and a current signal of the cable line monitored by the current detection coil is transmitted to the fault detection alarm device through the amplifying circuit, the judging circuit, the anti-jamming circuit and the output circuit. Each cable line is respectively provided with a current detection circuit, a voltage detection circuit and a temperature detection circuit. The alarm display circuit consists of an acquisition circuit, a display circuit, an audio output circuit and an encoding circuit.

In this embodiment, if a cable line in the box-type substation leaks electricity, the cable line may generate an electric leakage current, an electric leakage current is detected by the current detection coil, an electric leakage current signal is transmitted to an operation fault alarm system of the box-type substation, if the electric leakage current exceeds a set value, an alarm is given by the display circuit, corresponding fault information is reflected by the display circuit, and an alarm ring is given by the audio output circuit. Meanwhile, the operation fault alarm system of the box-type substation transmits alarm information of the fault of the box-type substation and an operation fault table to the background server through the network transmission circuit so as to inform background workers of corresponding processing, and the background workers perform corresponding maintenance processing on the fault alarm generation time, station number, fault loop name and alarm content of the box-type substation after receiving the relevant information, so that the operation reliability of the box-type substation is improved.

In one embodiment, an operation fault table is generated according to the operation fault state of the monitored box-type substation, real-time alarm information and the operation fault table are uploaded to a background server for operation and analysis, and the severity of the operation fault is obtained according to the operation and analysis result; namely, the operation fault table has related information such as fault alarm generation time, station number, fault loop name, alarm content and the like, the severity of the operation fault in the box-type substation is analyzed according to the information in the operation fault table, and then workers with corresponding work experience are allocated according to the severity of the fault to maintain the operation fault of the box-type substation. Further, the background server also stores the fault types which are good for the respective workers, the experience of the workers and the like. Specifically, when the operation fault of the box-type substation is a slight fault, staff with less experience is allocated for processing; when the operation fault of the box-type substation is serious, the relative staff with more experience is allocated according to the fault type for targeted processing; therefore, the problem that the corresponding operation faults of the box-type substation cannot be maintained due to insufficient experience of the distributed working personnel is solved, the working personnel can be reasonably distributed to maintain the box-type substation, and the maintenance cost is reduced.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.