CN116683436A

CN116683436A - Power distribution network self-healing method and device, electronic equipment and storage medium

Info

Publication number: CN116683436A
Application number: CN202310685635.9A
Authority: CN
Inventors: 张荣海; 欧阳本凯; 贺诗辉; 黄玉琛; 卢珊; 刘配配; 汤梓苡; 刁扬
Original assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-09-01

Abstract

The embodiment of the invention discloses a self-healing method, a self-healing device, electronic equipment and a medium for a power distribution network. The method comprises the following steps: acquiring the times and the switching state of locking signals in a line; determining a fault switch based on the number of latching signals and the switch state; and recovering the fault switch based on a preset rule. The embodiment obtains the times and the switch states of the locking signals in the circuit; determining a fault switch based on the number of latching signals and the switch state; and the fault switch is recovered based on a preset rule, so that the self-healing of the power distribution network can be realized, the duplicate effect is improved, and the transformation cost of a distribution network line is saved.

Description

Power distribution network self-healing method and device, electronic equipment and storage medium

Technical Field

The present invention relates to the field of electric power technologies, and in particular, to a self-healing method and apparatus for a power distribution network, an electronic device, and a storage medium.

Background

The self-healing of the distribution network can be that the distribution system can detect system faults, early warn the unsafe state of the system and perform corresponding operation, so that normal power supply to users is not affected or the influence of the normal power supply to users is minimized.

In the prior art, due to the factors of limited mountain terrain and transformer substation distribution points, a power supply local branch circuit cannot be put into a power distribution network self-healing function. Therefore, the distribution network has an atypical wiring mode and a line of a mixed feeder automation technical route, namely, the situation that an automatic circuit breaker and an automatic load switch are mixed on a main line can occur, and the part of the lines do not meet the access requirement of a self-healing line standard mode and are only suitable for the distribution network lines of the pure automatic circuit breaker or the pure automatic load switch. Under the existing procedure, a great deal of funds are needed to be invested if the transformation of the distribution network line is carried out.

Therefore, how to realize self-healing of a power distribution network by a power distribution network line which does not meet the access requirement is a problem to be solved.

Disclosure of Invention

The invention provides a self-healing method, a self-healing device, electronic equipment and a storage medium for a power distribution network, so that the power distribution network which does not meet the standard mode of the self-healing line can realize the self-healing of the power distribution network, the duplicate electricity effect is improved, and the transformation cost of the power distribution network line is saved.

According to one aspect of the invention, there is provided a power distribution network self-healing method, comprising:

acquiring the times and the switching state of locking signals in a line;

determining a fault switch based on the number of latching signals and a switch state;

and recovering the fault switch based on a preset rule.

According to another aspect of the present invention, there is provided a self-healing device for a power distribution network, including:

the acquisition module is used for acquiring the times and the switching state of the locking signals in the circuit;

a determining module for determining a fault switch based on the number of times of the blocking signal and the switch state;

and the recovery module is used for recovering the fault switch based on a preset rule.

According to another aspect of the present invention, there is provided an electronic apparatus including:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the self-healing method of the power distribution network according to any of the embodiments of the present invention.

According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to implement the self-healing method of the power distribution network according to any embodiment of the present invention when executed.

According to the technical scheme, the frequency and the switching state of the locking signals in the circuit are obtained; determining a fault switch based on the number of latching signals and the switch state; and the fault switch is recovered based on a preset rule, so that the self-healing of the power distribution network can be realized, the duplicate effect is improved, and the transformation cost of a distribution network line is saved.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flowchart of a self-healing method for a power distribution network according to a first embodiment of the present invention;

fig. 2 is a flowchart of another self-healing method for a power distribution network according to the second embodiment of the present invention;

fig. 3 is a schematic structural diagram of a self-healing device for a power distribution network according to a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electronic device for implementing a self-healing method of a power distribution network according to a fourth embodiment of the present invention.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

Fig. 1 is a flowchart of a power distribution network self-healing method according to an embodiment of the present invention, where the method may be performed by a power distribution network self-healing device, and the power distribution network self-healing device may be implemented in hardware and/or software, and the power distribution network self-healing device may be integrally configured in an electronic device. As shown in fig. 1, the method includes:

s110, acquiring the times of locking signals in the line and the switch state.

The lines may be a plurality of power lines in the power distribution network that do not satisfy the standard mode of the self-healing line. The latch signal may be that an automatic switch provided on each line generates a corresponding latch signal when the line fails. The switch state may be an attribute state of the automated switch under different conditions.

Illustratively, S110 may include: acquiring a blocking signal in a power distribution network line, and counting the times of occurrence of the blocking signal; acquiring a terminal equipment type in a power distribution network line, and determining a switch type according to a terminal signal and the terminal equipment type, wherein the switch type comprises a first type switch and a second type switch; the switch states of the first type of switch and the second type of switch are determined, wherein the switch states include successful or unsuccessful reclosing.

The switch state can be judged according to the tripping times of the electric brake, if the reclosing is successful, the electric brake is tripped once, and if the reclosing is unsuccessful, the electric brake is tripped twice.

In this embodiment, the statistics of the number of times of occurrence of the blocking signal may be statistics of the number of times of occurrence of the X blocking signal and the Y blocking signal on the distribution network line, where the X blocking signal and the Y blocking signal may be used to represent signal points of a fault section where a fault occurs.

In this embodiment, the switch type may be determined intelligently according to the terminal signal and the device type, or may be determined by manual input.

Wherein, because the terminal equipment is uneven, different terminal equipment has different terminal signals, therefore, confirm the switch type according to terminal signal and terminal equipment type; if some terminal devices do not have terminal signals, the switch type can be determined by a diagram source mode, and if the device cannot accurately judge the switch type, the switch type can also be determined by a manual input mode.

Illustratively, the first type of switch comprises a circuit breaker and the second type of switch comprises a load switch.

Wherein the circuit breaker may be a switching device for switching on, off and carrying current under normal or abnormal loop conditions; the load switch may be a switching device between a circuit breaker and a disconnector, with simple arc extinguishing means, capable of cutting off the rated load current and a certain overload current, but not the short-circuit current.

In this embodiment, the circuit breaker may be applied in an outgoing/feeder switch, a tie switch, and a sectionalizer switch; the load switch can be applied to a tie switch and a segment switch.

S120, determining a fault switch based on the number of times of the locking signal and the switch state.

The fault switch can be a switch which is in fault and can not be normally used.

Illustratively, S120 may include: if the switching state of the first type switch is unsuccessful in superposition and the number of times of the locking signals sent by the first type switch in the preset time reaches a preset threshold value, determining the first type switch as a first fault switch; or if the switching state of the first type switch is successful in superposition and the number of times of sending the locking signal by the second type switch in the preset time reaches a preset threshold value, determining the second type switch as a second fault switch.

Wherein the first and second fault switches may be switches of a region upstream of the fault for the distribution network line.

In this embodiment, if there is an outgoing line/feeder line switch or a circuit breaker on the distribution network line, and only one of the switch states is unsuccessful in reclosing, and the number of times of the blocking signal sent in the preset time is 0, the switch that is unsuccessful in reclosing may be determined as the first fault switch; or if the outgoing line/feeder line switch or the circuit breaker exists on the distribution line, the switch states of the outgoing line/feeder line switch or the circuit breaker are overlapped successfully, and the frequency of sending a locking signal by a switch split load switch of the distribution line within a preset time is 1, determining the load switch as a second fault switch.

Illustratively, after determining the failed switch based on the number of latching signals and the switch state, further comprising: determining the switch type of a lower switch of the first fault switch, and if the lower switch is the first type switch and receives a protection signal sent by the first type switch, determining a new fault switch again; determining a faulty lower switch based on the lower switch of the new faulty switch; it is determined whether a fault exists in the faulty lower level switch.

In this embodiment, after determining that a switch in the upstream area has failed, it is necessary to continue searching for a switch in the downstream area to determine whether or not a failure exists in the downstream switch.

In this embodiment, the lower level switch of the first fault switch is a breaker, and the breaker sends a protection signal, and then a new fault switch needs to be determined again until the breaker of the lower level of the selected fault switch cannot send the protection signal, or the lower level of the fault switch is not the breaker.

In this embodiment, if a new fault switch is newly determined, it is necessary to determine a fault lower switch based on a lower switch of the new fault switch and determine whether the fault lower switch has a fault.

For example, in the case where the failure-subordinate switch is the second-type switch, determining whether the failure-subordinate switch has a failure may include: if the fault lower-level switch sends a locking signal and the switch state is successful in superposition, determining that the fault lower-level switch has a fault; or the fault lower-level switch cannot send out a locking signal, and if the fault lower-level switch receives an overcurrent/grounding signal sent by the fault lower-level switch, the fault lower-level switch is determined to have an obstacle.

In the embodiment, if the load switch sends a locking signal and the switch state is successful in superposition under the condition that the fault lower-stage switch is the load switch, determining that the load switch has an obstacle; or the fault lower-level switch cannot send out a locking signal and send out an overcurrent/grounding signal, and then the fault lower-level switch is determined to have an obstacle.

S130, recovering the fault switch based on a preset rule.

The preset rule may be a preset rule for repairing the fault switch.

Illustratively, S130 may include: if the new fault switch does not need to be redetermined, isolating the first fault switch or the second fault switch from a fault lower-level switch with a fault; if the new fault switch needs to be redetermined, adding an upper-level switch of the first fault switch into a power restoration scheme; and if the fault lower-stage switch is in a split state and a locking signal exists, adding the fault lower-stage switch into a double-power scheme.

The first fault switch or the second fault switch is isolated from a fault lower-level switch with a fault, so that the fault is isolated, and the power transfer is convenient.

In this embodiment, if the fault lower switch is a load switch and the blocking signal is not sent, the first fault switch or the second fault switch may be isolated from the fault lower switch having the fault after the protection function is withdrawn by using the remote control.

In this embodiment, if a new fault switch needs to be redetermined, all the upper level switches (including trip switches) upstream of the fault need to be added to the double power scheme.

In this embodiment, if the fault lower-level switch is in a bit state and an X blocking signal is sent, the fault lower-level switch is in a bit state and is added to the power restoration scheme.

In this embodiment, the application type of the switch may also be determined, and if the tie switch is an isolation switch and a new fault switch is not determined again, only the first fault switch or the second fault switch needs to be isolated from the fault lower switch with a fault.

In this embodiment, if the tie switch is not an isolation switch and the opposite feeder cannot transfer electricity, the first fault switch or the second fault switch needs to be isolated from the fault lower switch with a fault.

In this embodiment, if the tie switch is a disconnector and a new fault switch is redetermined, the tie switch may be added to the double-power scheme.

The embodiment of the invention obtains the times and the switch states of the locking signals in the circuit; determining a fault switch based on the number of latching signals and the switch state; and the fault switch is recovered based on a preset rule, so that the self-healing of the power distribution network can be realized, the duplicate effect is improved, and the transformation cost of a distribution network line is saved.

Example two

Fig. 2 is a flowchart of a self-healing method of a power distribution network according to a second embodiment of the present invention. As shown in fig. 2, the method includes:

s201, acquiring blocking signals in a power distribution network line, and counting the times of occurrence of the blocking signals.

S202, judging whether the switch fails to coincide according to the tripping times, if so, executing S204, otherwise, executing S203.

Wherein, the coincidence failure can be that the tripping times of the electric switch is 2 times.

S203, judging whether the switch state of the first type switch is unsuccessful in superposition, if so, executing S205, otherwise, executing S206.

Wherein, the unsuccessful reclosing can be that the tripping times of the electric switch is 1 time.

S204, ending the self-healing analysis of the power distribution network.

S205, judging whether the number of times of the Y locking signal is 0, if so, executing S207, otherwise, executing S204.

S206, judging whether the number of times of the Y locking signal is 1, if yes, executing S207, otherwise, executing S204.

S207, determining a fault upstream switch, and executing S208 and S225.

S208, searching the lower-stage switch of the fault upstream switch.

S209, judging whether the lower switch is a tie switch, if so, executing S210, otherwise, executing S211.

S210, determining the fault lower-stage switch as a fault lower-stage switch.

S211, judging whether the lower-stage switch is a circuit breaker, if yes, executing S212, otherwise, executing S213.

S212, judging whether the circuit breaker sends out a protection signal, if so, executing S214, otherwise, executing S215.

S213, judging whether the lower switch sends out an X locking signal, if so, executing S216, otherwise, executing S217.

S214, determining the current switch as the failed upstream switch, S208 and S224 are performed.

S215, determining the current switch as a failure downstream switch, and S221 is executed.

S216, determining whether a lower-stage switch has switch division, if so, executing S210, otherwise, executing S204.

S217, determining whether the fault lower-stage switch sends an overcurrent/grounding signal, if yes, executing S204, otherwise, executing S218.

S218, determining whether a fault lower-stage switch has a split switch, if so, executing S219, otherwise, executing S204.

S219, the protection function of the split switch is exited, and S220 is executed.

S220, isolating the upstream and downstream switches with faults.

S221, judging whether a blocking signal exists in a lower switch of the fault downstream switch, if yes, executing S222, otherwise, executing S220.

S222, determining whether the current switch has switch division, if yes, executing S223, otherwise, executing S204.

S223, adding a split switch sending an X locking signal into a complex power scheme.

S224, adding the fault upstream switch into a double-power scheme.

S225, judging whether the tripping switch is a disconnecting switch, and if so, executing S226.

S226, adding the tripping switch into a double-power scheme.

S227, judging whether the interconnection switch is an isolating switch, if so, executing S228, otherwise, executing S229.

S228, judging whether to redetermine the new fault upstream switch, if so, executing S230, otherwise, executing S231.

S229, judging whether the side feeder can transfer power, if so, executing S232, otherwise, executing S231.

S230, adding the fault upstream switch into a double-power scheme in a bit-by-bit manner.

S231, isolating the fault upstream switch and the fault downstream switch.

S232, adding the tie switch into a double-electricity scheme.

The embodiment of the invention can realize the self-healing of the power distribution network, promote the duplicate effect and save the transformation cost of the distribution network line.

Example III

Fig. 3 is a schematic structural diagram of a self-healing device for a power distribution network according to a third embodiment of the present invention. As shown in fig. 3, the apparatus includes: an acquisition module 310, a determination module 320, and a recovery module 330.

The acquiring module 310 is configured to acquire the number of times of the latch signal in the line and the switch state;

a determining module 320, configured to determine a fault switch based on the number of times of the blocking signal and a switch state;

and the recovery module 330 is configured to recover the fault switch based on a preset rule.

Optionally, the obtaining module 310 includes:

the counting unit is used for acquiring blocking signals in the power distribution network line and counting the times of occurrence of the blocking signals;

the switch type determining unit is used for obtaining the type of the terminal equipment in the power distribution network line and determining the switch type according to the terminal signal and the type of the terminal equipment, wherein the switch type comprises a first type switch and a second type switch;

and the switch state determining unit is used for determining the switch states of the first type switch and the second type switch, wherein the switch states comprise successful superposition or unsuccessful superposition.

Optionally, the first type of switch comprises a circuit breaker and the second type of switch comprises a load switch.

Optionally, the determining module 320 is specifically configured to: if the switch state of the first type switch is unsuccessful in superposition and the frequency of the locking signal sent by the first type switch in the preset time reaches a preset threshold value, determining the first type switch as a first fault switch;

or if the switch state of the first type switch is successful in superposition and the number of times of sending the locking signal by the second type switch in the preset time reaches a preset threshold, determining the second type switch as a second fault switch.

Optionally, the determining module 320 is further configured to: after determining the fault switch based on the frequency and the switch state of the blocking signal, determining the switch type of a lower-level switch of the first fault switch, and if the lower-level switch is a first-type switch and receives a protection signal sent by the first-type switch, determining a new fault switch again;

determining a faulty lower switch based on the lower switch of the new faulty switch;

determining whether the fault subordinate switch has a fault.

Optionally, the determining module 320 is specifically configured to: if the fault lower-stage switch sends out a locking signal and the switch state is successful in superposition, determining that the fault lower-stage switch has a fault;

or the fault lower-level switch cannot send out a locking signal, and if the fault lower-level switch receives an overcurrent/grounding signal sent by the fault lower-level switch, the fault lower-level switch is determined to have an obstacle.

Optionally, the recovery module 330 is specifically configured to: if the new fault switch does not need to be redetermined, isolating the first fault switch or the second fault switch from a fault lower-level switch with a fault;

if the new fault switch needs to be redetermined, adding an upper-level switch of the first fault switch into a power restoration scheme;

and if the fault lower-stage switch is in a split state and a locking signal exists, adding the fault lower-stage switch into a power restoration scheme.

The power distribution network self-healing device provided by the embodiment of the invention can execute the power distribution network self-healing method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

Example 4

Fig. 4 shows a schematic diagram of an electronic device 10 that may be used to implement a fourth embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 4, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.

Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as a power distribution network self-healing method.

In some embodiments, a power distribution network self-healing method may be implemented as a computer program tangibly embodied on a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more of the steps of a power distribution network self-healing method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform a power distribution network self-healing method by any other suitable means (e.g., by means of firmware).

Various implementations of the systems and techniques described here above can be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The self-healing method of the power distribution network is characterized by comprising the following steps of:

acquiring the times and the switching state of locking signals in a line;

and recovering the fault switch based on a preset rule.

2. The method of claim 1, wherein the acquiring the number of latching signals in the line and the switch state comprises:

acquiring a blocking signal in a power distribution network line, and counting the frequency of occurrence of the blocking signal;

acquiring a terminal equipment type in the power distribution network line, and determining a switch type according to a terminal signal and the terminal equipment type, wherein the switch type comprises a first type switch and a second type switch;

and determining the switch states of the first type switch and the second type switch, wherein the switch states comprise successful superposition or unsuccessful superposition.

3. The method of claim 2, wherein the first type of switch comprises a circuit breaker and the second type of switch comprises a load switch.

4. The method of claim 2, wherein the determining a fault switch based on the number of latching signals and a switch state comprises:

if the switch state of the first type switch is unsuccessful in superposition and the frequency of the locking signal sent by the first type switch in the preset time reaches a preset threshold value, determining the first type switch as a first fault switch;

5. The method of claim 4, further comprising, after said determining a fault switch based on the number of latching signals and a switch state:

determining the switch type of a lower-stage switch of the first fault switch, and if the lower-stage switch is a first-type switch and receives a protection signal sent by the first-type switch, determining a new fault switch again;

determining whether the fault subordinate switch has a fault.

6. The method of claim 4, wherein determining whether the faulty lower switch is faulty if the faulty lower switch is a second type of switch comprises:

if the fault lower-stage switch sends out a locking signal and the switch state is successful in superposition, determining that the fault lower-stage switch has a fault;

7. The method of any of claims 1-6, wherein recovering the faulty switch based on a preset rule comprises:

if the new fault switch does not need to be redetermined, isolating the first fault switch or the second fault switch from a fault lower-level switch with a fault;

8. The utility model provides a distribution network self-healing device which characterized in that includes:

9. An electronic device, the electronic device comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the power distribution network self-healing method of any one of claims 1-7.

10. A computer readable storage medium, characterized in that the computer readable storage medium stores computer instructions for causing a processor to implement the power distribution network self-healing method according to any one of claims 1 to 7 when executed.