CN114678869A - Self-healing method and device for power distribution network, electronic equipment and storage medium - Google Patents
Self-healing method and device for power distribution network, electronic equipment and storage medium Download PDFInfo
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- CN114678869A CN114678869A CN202210595994.0A CN202210595994A CN114678869A CN 114678869 A CN114678869 A CN 114678869A CN 202210595994 A CN202210595994 A CN 202210595994A CN 114678869 A CN114678869 A CN 114678869A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
The invention discloses a self-healing method and a self-healing device for a power distribution network, electronic equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps of obtaining fault information of a power distribution network domain type protection system and line structure information of a power distribution network, identifying the fault information to obtain a fault identification result message, screening to obtain a target contact switch based on the fault identification result message and in combination with the line structure information, closing the target contact switch by applying a power distribution network checking strategy, and recovering normal power supply of a non-fault point line. The technical problem that the traditional power distribution network self-healing method cannot give consideration to both fault isolation efficiency and self-healing speed is solved, and power supply reliability of the power distribution network is improved.
Description
Technical Field
The invention relates to the technical field of power recovery of a power distribution network, in particular to a self-healing method and device of the power distribution network, electronic equipment and a storage medium.
Background
At present, the distribution network structure is gradually complicated, and user type is various, also constantly improves to the requirement of power supply reliability, and new forms of energy are incorporated into the power networks quantity and also increase gradually, leads to the variety of distribution network to surpass in the past, and the power direction change of electric wire netting branch line is also more frequent. Aiming at the characteristics, the conventional power distribution network protection method is realized through the matching of level differences, has long trip protection time and single protection mode, cannot adapt to the dynamic change of power, cannot fully consider the influence of a distributed power supply on the current of a circuit, cannot simultaneously consider the fault isolation efficiency and the self-healing speed in principle, cannot effectively solve the problems of quick accurate fault isolation and quick power restoration, and cannot continuously improve the power supply quality requirement of a user. With the development of the intelligent power distribution network, the power distribution network protection and self-healing strategy and system have higher adaptability, can more accurately isolate faults and quickly recover power supply under the environment with more complex structure and more changeable operation mode, is an effective method for solving the problem of faults of the complex power distribution network in future, and provides powerful support for improving the power supply reliability and the power grid safety of the power grid.
The self-healing method provided at present mainly adopts a master station control mode, on one hand, because the protection of a distribution network protection terminal, especially a line rear section or a multi-branch line, cannot be completely matched, accurate fault location and isolation cannot be realized after a fault, the power failure range is expanded, and simultaneously the power restoration range after self-healing is also influenced, and the reliable power supply of a user cannot be ensured to the maximum extent; on the other hand, the control strategy of the self-healing control master station needs to acquire a large amount of comprehensive information such as power distribution network faults, electric quantity parameters, protection action conditions and the like, although the control performance can be optimized, the information acquisition needs a large amount of waiting time and judgment time, the larger the information amount is, the longer the processing time of the master station is, the longer the waiting time of the self-healing action is, and adverse social influence and unnecessary economic loss can be caused for important users and sensitive users.
Therefore, in order to improve the power supply reliability of the power distribution network and solve the technical problem that the conventional power distribution network self-healing method cannot simultaneously consider the fault isolation efficiency and the self-healing speed, a power distribution network self-healing method is urgently needed to be constructed.
Disclosure of Invention
The invention provides a self-healing method and device for a power distribution network, electronic equipment and a storage medium, and solves the technical problem that the existing traditional self-healing method for the power distribution network cannot give consideration to both fault isolation efficiency and self-healing speed.
In a first aspect, the present invention provides a self-healing method for a power distribution network, including:
acquiring fault information of a domain type protection system of a power distribution network and line structure information of the power distribution network;
identifying the fault information to obtain a fault identification result message;
based on the fault identification result message, screening to obtain a target interconnection switch in combination with the line structure information;
and closing the target interconnection switch by using a power distribution network checking strategy, and recovering normal power supply of the non-fault point line.
Optionally, identifying the fault information to obtain a fault identification result message, including:
identifying the fault information to obtain fault identification result information;
and simplifying the fault identification result information into remote signaling information, and combining the fault information to obtain the fault identification result message.
Optionally, the screening, based on the fault identification result message and in combination with the line structure information, to obtain a target interconnection switch includes:
constructing a fault model based on the fault identification result message;
and according to the fault identification result message and the fault model, screening to obtain the target interconnection switch by combining the line structure information.
Optionally, a power distribution network checking strategy is applied, the target interconnection switch is closed, and normal power supply of the non-fault point line is recovered, including:
separating all switches of the upstream line of the fault point and all switches of the downstream line of the fault point by applying the power distribution network checking strategy to obtain fault point isolation condition information;
and closing the target interconnection switch based on the fault point isolation condition information, and recovering normal power supply of the non-fault point line.
In a second aspect, the present invention provides a self-healing device for a power distribution network, including:
the acquisition module is used for acquiring fault information of a power distribution network domain type protection system and line structure information of a power distribution network;
the analysis module is used for identifying the fault information to obtain a fault identification result message;
the screening module is used for screening and obtaining a target interconnection switch based on the fault identification result message and in combination with the line structure information;
and the recovery module is used for closing the target interconnection switch by applying a power distribution network checking strategy and recovering normal power supply of the non-fault point line.
Optionally, the analysis module comprises:
the analysis submodule is used for identifying the fault information to obtain fault identification result information;
and the simplifying submodule is used for simplifying the fault identification result information into remote signaling information and combining the fault information to obtain the fault identification result message.
Optionally, the screening module comprises:
the modeling submodule is used for constructing a fault model based on the fault identification result message;
and the screening submodule is used for screening and obtaining the target interconnection switch according to the fault identification result message and the fault model and by combining the line structure information.
Optionally, the recovery module comprises:
the separation submodule is used for separating all switches of the upstream line of the fault point and all switches of the downstream line of the fault point by applying the power distribution network checking strategy to obtain fault point isolation condition information;
and the recovery submodule is used for closing the target contact switch based on the fault point isolation condition information and recovering normal power supply of a non-fault point line.
In a third aspect, the present application provides an electronic device comprising a processor and a memory, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, perform the steps of the method as provided in the first aspect.
In a fourth aspect, the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as provided in the first aspect above.
According to the technical scheme, the invention has the following advantages: the invention provides a self-healing method of a power distribution network, which comprises the steps of acquiring fault information of a domain type protection system of a power distribution network and line structure information of the power distribution network, identifying the fault information to obtain a fault identification result message, screening to obtain a target contact switch based on the fault identification result message and in combination with the line structure information, closing the target contact switch by applying a power distribution network checking strategy, and recovering the day-ahead total operation cost information of a distributed power supply under the normal power supply data refreshing condition of a non-fault point line.
According to the power distribution network step-by-step self-healing system, through centralized decision and control of the station domain type protection system, on one hand, the protection outlet action time during the fault of a power distribution line is shortened, the fault is more accurately determined and isolated, the optimization of a fault processing strategy is realized, and the protection action time is shortened from the second level to the millisecond level; on the other hand, the self-healing action efficiency of the distribution network can be improved due to the rapid and minimum isolation of faults, the self-healing strategy is optimized through data provided by the station domain type protection system, unnecessary waiting and data processing time is reduced, the defects that the self-healing action time of the current main station is long and the practicability is weak are overcome, and the second-level action and the power restoration of the distribution network can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a first embodiment of a self-healing method for a power distribution network according to the present invention;
fig. 2 is a flowchart illustrating a second embodiment of a self-healing method for a power distribution network according to the present invention;
fig. 3 is a block diagram of a power distribution network step-by-step self-healing system according to the present invention;
fig. 4 is a block diagram of a self-healing device of a power distribution network according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a self-healing method and device for a power distribution network, electronic equipment and a storage medium, which are used for solving the technical problem that the existing traditional self-healing method for the power distribution network cannot give consideration to both fault isolation efficiency and self-healing speed.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the first embodiment, referring to fig. 1, fig. 1 is a flowchart of a first flow step of a self-healing method for a power distribution network according to a first embodiment of the present invention, including:
step S101, acquiring fault information of a power distribution network domain type protection system and line structure information of a power distribution network;
step S102, identifying the fault information to obtain a fault identification result message;
in the embodiment of the invention, the fault information is identified to obtain the fault identification result information, the fault identification result information is simplified into the remote semaphore information, and the fault identification result message is obtained by combining the fault information.
Step S103, based on the fault identification result message, combining the line structure information, and screening to obtain a target interconnection switch;
in the embodiment of the invention, a fault model is constructed based on the fault identification result message, and the target interconnection switch is obtained by screening according to the fault identification result message and the fault model and by combining with the line structure information.
Step S104, closing the target contact switch by using a power distribution network checking strategy, and recovering normal power supply of a non-fault point line;
in the embodiment of the invention, the power distribution network checking strategy is applied to separate all switches of the upstream line of the fault point from all switches of the downstream line of the fault point to obtain the fault point isolation condition information, and the target interconnection switch is closed based on the fault point isolation condition information to recover the normal power supply of the non-fault point line.
According to the self-healing method of the power distribution network, provided by the embodiment of the invention, the fault information of the domain type protection system of the power distribution network and the line structure information of the power distribution network are obtained, the fault information is identified, the fault identification result message is obtained, the target contact switch is obtained through screening by combining the line structure information based on the fault identification result message, the target contact switch is closed by applying a power distribution network check strategy, and the day-ahead total operation cost information of the distributed power supply under the normal power supply data refreshing condition of the non-fault point line is recovered.
According to the power distribution network step-by-step self-healing system, by means of centralized decision and control of the station domain type protection system, on one hand, the protection outlet action time during distribution line fault is shortened, the fault is determined and isolated more accurately, the optimization of a fault processing strategy is realized, and the protection action time is shortened from the second level to the millisecond level; on the other hand, the self-healing action efficiency of the distribution network can be improved due to the rapid and minimum isolation of faults, the self-healing strategy is optimized through data provided by the station domain type protection system, unnecessary waiting and data processing time is reduced, the defects that the self-healing action time of the current main station is long and the practicability is weak are overcome, and the second-level action and the power restoration of the distribution network can be realized.
In a second embodiment, referring to fig. 2, fig. 2 is a flowchart illustrating a self-healing method of a power distribution network according to the present invention, including:
step S201, acquiring fault information of a power distribution network domain type protection system and line structure information of a power distribution network;
in the embodiment of the invention, the fault information of the power distribution network domain type protection system and the line structure information of the power distribution network are obtained.
In a concrete reality, please refer to fig. 3, fig. 3 is a block diagram of a structure of a step-by-step self-healing system for a power distribution network according to the present invention, wherein 301 is a domain type protection system for a power distribution network, 302 is a domain type protection device for the power distribution network, 303 is a line terminal for the power distribution network, 304 is a self-healing system for the power distribution network, 305 is a self-healing control master control device for the power distribution network, and 306 is a line contact switch for the power distribution network; the distribution network domain type protection device 302, the distribution network line terminal 303 and the distribution network self-healing control main control device 305 are connected with each other, and the distribution network self-healing control main control device 305 is connected with the distribution network line contact switch 306;
the power distribution network domain protection system 301 is mainly used for data acquisition, fault judgment, trip command transmission and the like of all power distribution terminals within the protection range of the power distribution network domain protection system, and generally, a set of power distribution network domain protection devices 302 correspond to power distribution terminals of a plurality of 10kV feeders to form the power distribution network domain protection system 301. After the power distribution network domain protection system 301 completes a series of fault data acquisition and judgment, key data are synchronously transmitted to the power distribution network self-healing system 304. Because the efficiency of data acquisition and judgment of the distribution network domain type protection system 301 is far higher than that of a self-healing system, and is about 40-80ms after the initial fault, the distribution network self-healing system 304 can receive key information such as fault data, fault identification results and the like within millisecond-level time, namely the first step of the distribution network step type self-healing system is completed, and millisecond-level sharing of distribution network fault information is realized.
The second step of the distribution network step-by-step self-healing system is a distribution network self-healing system link of the distribution network self-healing control main control device 305, fault information and analysis judgment results shared by the distribution network domain protection system 301 are combined with information such as a distribution network grid structure, fault point positions, contact switch positions and fault point isolation conditions, the information is comprehensively analyzed after being checked, a self-healing command is output, a cooperation command is sent to a target distribution network line contact switch 306, and the self-healing function is completed. Compared with the conventional distribution network self-healing system, the step-by-step self-healing method can greatly shorten the information collection and waiting time of the self-healing system, so that the self-healing time limit is changed from second to millisecond.
The power distribution network step-by-step self-healing system has the advantages that the efficiency can be improved and the time can be shortened through the preliminary data processing of the first-stage power distribution network domain type protection system, and the logic judgment condition of the second step can be simplified according to the judgment and identification result of the first step in the self-healing logic aspect, so that the self-healing system judgment time is shortened, and the purpose of optimizing the self-healing strategy is achieved.
Step S202, identifying the fault information to obtain fault identification result information;
in the embodiment of the invention, the fault information is analyzed to obtain the fault identification result information.
Step S203, simplifying the fault identification result information into remote signaling information, and combining the fault information to obtain a fault identification result message;
in the embodiment of the invention, the identification result is simplified into a simple remote signaling (0 or 1), information such as the ID of the target terminal, key constant value parameters and the like is recombined into a short message, and the short message can be rapidly transmitted to the distribution network self-healing system 304 through a distribution network optical fiber channel.
Step S204, constructing a fault model based on the fault identification result message;
in this embodiment of the present invention, the analyzing, by the distribution network self-healing control main control device 305, information transmitted by the distribution network domain protection device 302 includes: and reconstructing a system fault model according to the ID of the upstream and downstream terminals of the fault point and a distribution network GIS graph, the protection action teletraffic, the terminal switch position, the reclosing control word and the like.
Step S205, according to the fault identification result message and the fault model, in combination with the line structure information, a target contact switch is obtained through screening;
in the embodiment of the present invention, the distribution network self-healing control master control device 305 screens the target interconnection switch according to the distribution network line structure information in cooperation with the fault identification result message and the fault model.
Step S206, separating all switches of the upstream line of the fault point and all switches of the downstream line of the fault point by using a power distribution network checking strategy to obtain fault point isolation condition information;
in the embodiment of the present invention, the distribution network self-healing control main control device 305 separates all switches of the upstream line of the fault point according to the distribution network check strategy, sends a command to remotely separate all switches of the downstream line of the fault point after confirming that the switches of the upstream line of the fault point are separated, and obtains the fault point isolation condition information after confirming that the switches of the downstream line of the fault point are separated.
Step S207, based on the fault point isolation condition information, closing the target contact switch and recovering normal power supply of a non-fault point line;
in the embodiment of the present invention, the distribution network self-healing control main control device 305 confirms the fault point isolation condition information, closes the target interconnection switch, recovers the power supply from the back-end line to other lines, and recovers the normal power supply from the non-fault point line.
According to the self-healing method of the power distribution network, provided by the embodiment of the invention, the fault information of the domain type protection system of the power distribution network and the line structure information of the power distribution network are obtained, the fault information is identified, the fault identification result message is obtained, the target contact switch is obtained through screening by combining the line structure information based on the fault identification result message, the target contact switch is closed by applying a power distribution network check strategy, and the day-ahead total operation cost information of the distributed power supply under the normal power supply data refreshing condition of the non-fault point line is recovered.
According to the power distribution network step-by-step self-healing system, by means of centralized decision and control of the station domain type protection system, on one hand, the protection outlet action time during distribution line fault is shortened, the fault is determined and isolated more accurately, the optimization of a fault processing strategy is realized, and the protection action time is shortened from the second level to the millisecond level; on the other hand, the self-healing action efficiency of the distribution network can be improved due to the rapid and minimum isolation of faults, the self-healing strategy is optimized through data provided by the station domain type protection system, unnecessary waiting and data processing time is reduced, the defects that the self-healing action time of the current main station is long and the practicability is weak are overcome, and the second-level action and the power restoration of the distribution network can be realized.
Referring to fig. 4, fig. 4 is a block diagram illustrating a self-healing apparatus of a power distribution network according to an embodiment of the present invention, including:
the acquisition module 401 is configured to acquire fault information of a power distribution network domain protection system and line structure information of a power distribution network;
an analysis module 402, configured to identify the fault information to obtain a fault identification result message;
a screening module 403, configured to, based on the fault identification result packet, screen to obtain a target interconnection switch in combination with the line structure information;
and the recovery module 404 is configured to apply a power distribution network check strategy, close the target interconnection switch, and recover normal power supply of the non-fault point line.
In an alternative embodiment, the analysis module 402 comprises:
the analysis submodule is used for identifying the fault information to obtain fault identification result information;
and the simplification submodule is used for simplifying the fault identification result information into remote semaphore information and obtaining the fault identification result message by combining the fault information.
In an alternative embodiment, the screening module 403 includes:
the modeling submodule is used for constructing a fault model based on the fault identification result message;
and the screening submodule is used for screening and obtaining the target interconnection switch according to the fault identification result message and the fault model and by combining the line structure information.
In an alternative embodiment, the recovery module 404 includes:
the separation submodule is used for separating all switches of the upstream line of the fault point and all switches of the downstream line of the fault point by applying the power distribution network checking strategy to obtain fault point isolation condition information;
and the recovery submodule is used for closing the target contact switch based on the fault point isolation condition information and recovering normal power supply of a non-fault point line.
An embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the self-healing method for a power distribution network according to any one of the above embodiments.
The embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, where the computer program, when executed by the processor, implements the steps of the self-healing method for the power distribution network according to any one of the above embodiments.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the method, apparatus, electronic device and storage medium disclosed in the present application may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned readable storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A self-healing method of a power distribution network is characterized by comprising the following steps:
acquiring fault information of a domain type protection system of a power distribution network and line structure information of the power distribution network;
identifying the fault information to obtain a fault identification result message;
based on the fault identification result message, combining the line structure information, and screening to obtain a target interconnection switch;
and closing the target interconnection switch by using a power distribution network checking strategy, and recovering normal power supply of the non-fault point line.
2. A self-healing method for a power distribution network according to claim 1, wherein the identifying the fault information to obtain a fault identification result message includes:
identifying the fault information to obtain fault identification result information;
and simplifying the fault identification result information into remote signaling information, and combining the fault information to obtain the fault identification result message.
3. A self-healing method for a power distribution network according to claim 1, wherein the step of screening a target interconnection switch based on the fault identification result message in combination with the line structure information includes:
constructing a fault model based on the fault identification result message;
and according to the fault identification result message and the fault model, screening to obtain the target interconnection switch by combining the line structure information.
4. A self-healing method for an electric distribution network according to any one of claims 1 to 3, wherein a power distribution network check strategy is applied to close the target interconnection switch and recover normal power supply of a non-fault line, and the method comprises the following steps:
separating all switches of the upstream line of the fault point and all switches of the downstream line of the fault point by applying the power distribution network checking strategy to obtain fault point isolation condition information;
and closing the target interconnection switch based on the fault point isolation condition information, and recovering normal power supply of the non-fault point line.
5. A self-healing device of distribution network, characterized by, includes:
the acquisition module is used for acquiring fault information of a power distribution network domain type protection system and line structure information of a power distribution network;
the analysis module is used for identifying the fault information to obtain a fault identification result message;
the screening module is used for screening and obtaining a target interconnection switch based on the fault identification result message and in combination with the line structure information;
and the recovery module is used for closing the target contact switch by applying a power distribution network checking strategy and recovering normal power supply of the non-fault point line.
6. A self-healing device for an electrical distribution network according to claim 5, wherein the analysis module comprises:
the analysis submodule is used for identifying the fault information to obtain fault identification result information;
and the simplifying submodule is used for simplifying the fault identification result information into remote signaling information and combining the fault information to obtain the fault identification result message.
7. A self-healing device for an electrical distribution network according to claim 5, wherein the screening module comprises:
the modeling submodule is used for constructing a fault model based on the fault identification result message;
and the screening submodule is used for screening and obtaining the target interconnection switch according to the fault identification result message and the fault model and by combining the line structure information.
8. A self-healing device for an electrical distribution network according to any one of claims 5 to 7, wherein the recovery module comprises:
the separation submodule is used for separating all switches of the upstream line of the fault point and all switches of the downstream line of the fault point by applying the power distribution network checking strategy to obtain fault point isolation condition information;
and the recovery submodule is used for closing the target contact switch based on the fault point isolation condition information and recovering normal power supply of a non-fault point line.
9. An electronic device comprising a processor and a memory storing computer readable instructions that, when executed by the processor, perform the method of any one of claims 1-4.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the method according to any of claims 1-4.
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