Power grid fault positioning and power failure power recovery strategy verification method and device

Abstract

The invention discloses a power grid fault positioning and power-off and power-on strategy verification method and a power grid fault positioning and power-off and power-on strategy verification device. The method comprises the following steps: determining a target area distribution network model, at least one candidate fault positioning strategy and at least one candidate power-off and power-on strategy; according to at least one group of predetermined fault setting points, fault point setting is carried out on the target area distribution network model, and a fault distribution network model corresponding to each group of fault setting points is obtained; and for each fault distribution network model, determining at least one target fault positioning strategy and at least one target power-off and power-on strategy from each candidate fault positioning strategy and each candidate power-off and power-on strategy. By adopting the technical scheme of the invention, under different fault conditions, the target fault positioning strategy and the target power-off recovery strategy which can quickly realize fault positioning and power-off recovery are quickly determined.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid maintenance, and in particular to a method and device for locating power grid faults and verifying power outage and restoration strategies. Background Art

[0002] The distribution network is the closest to the user in the entire power grid structure. The power supply reliability, quality, and amount of power supply of the power grid are reflected through the distribution network. Most distribution networks use fault location technology for distribution network line maintenance. The diverse line structures and different fault location logics cause a huge workload for the logic verification of the self-healing of distribution network line faults, which cannot meet the demand for reliable power supply of the distribution network in a timely manner. Therefore, a method is needed to verify the current power grid fault location and power outage and power restoration strategy according to the actual situation. Summary of the invention

[0003] The present invention provides a method and device for locating power grid faults and verifying power outage and power restoration strategies, so as to solve the problem that fault locating and power outage and power restoration strategies are complex and diverse and difficult to select.

[0004] According to one aspect of the present invention, a method for locating power grid faults and verifying power outage and power restoration strategies is provided, comprising:

[0005] Determine a target area distribution network model, at least one candidate fault location strategy, and at least one candidate power outage and power restoration strategy, wherein the nodes in the target area power grid model are electrical devices in the target area, and the edges are connection relationships between the electrical devices;

[0006] According to at least one set of predetermined fault setting points, respectively set fault points for the target area distribution network model to obtain a fault distribution network model corresponding to each set of fault setting points, wherein the at least one set of predetermined fault setting points is determined according to actual fault points and fault types in the target area;

[0007] For each fault distribution network model, at least one target fault location strategy and at least one target power outage and power restoration strategy are determined from each candidate fault location strategy and each candidate power outage and power restoration strategy. The target fault location strategy corresponding to each group of fault setting points is the fault location strategy with the fastest fault point location among each candidate fault location strategy. The target fault location strategy corresponding to each group of fault setting points is the power outage and power restoration strategy with the fastest power outage and power restoration among each power outage and power restoration strategy.

[0008] According to another aspect of the present invention, a device for locating power grid faults and verifying power failure and restoration strategies is provided, the device comprising:

[0009] A data determination module is used to determine a target area distribution network model, at least one candidate fault location strategy, and at least one candidate power outage and power restoration strategy, wherein the nodes in the target area power grid model are electrical equipment in the target area, and the edges are connection relationships between electrical equipment;

[0010] A fault point setting module is used to set fault points for the target area distribution network model according to at least one set of fault setting points determined in advance, and obtain a fault distribution network model corresponding to each set of fault setting points, wherein the at least one set of fault setting points determined in advance is determined according to the actual fault points and fault types of the target area;

[0011] The target strategy determination module is used to determine at least one target fault location strategy and at least one target power outage and power restoration strategy from each candidate fault location strategy and each candidate power outage and power restoration strategy for each fault distribution network model. The target fault location strategy corresponding to each group of fault setting points is the fault location strategy with the fastest fault point location among each candidate fault location strategy. The target fault location strategy corresponding to each group of fault setting points is the power outage and power restoration strategy with the fastest power outage and power restoration among each power outage and power restoration strategy.

[0012] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0013] at least one processor; and

[0014] a memory communicatively connected to at least one processor; wherein,

[0015] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the power grid fault location and power outage restoration strategy verification method of any embodiment of the present invention.

[0016] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions, and the computer instructions are used to enable a processor to implement the power grid fault location and power outage restoration strategy verification method of any embodiment of the present invention when executed.

[0017] The technical solution of the embodiment of the present invention determines a target area distribution network model, at least one candidate fault location strategy and at least one candidate power outage and restoration strategy; according to at least one group of fault setting points determined in advance, the target area distribution network model is respectively set with fault points to obtain a fault distribution network model corresponding to each group of fault setting points, so that the generated fault distribution network model can be more in line with the actual situation, thereby improving the accuracy of the final determination; for each fault distribution network model, from each candidate fault location strategy and each candidate power outage and restoration strategy, at least one target fault location strategy and at least one target power outage and restoration strategy are determined, thereby clarifying the target fault location strategy and target power outage and restoration strategy that can achieve fault location and power outage restoration the fastest under different fault conditions.

[0018] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a flow chart of a method for locating power grid faults and verifying power outage and power restoration strategies provided according to Embodiment 1 of the present invention;

[0021] Figure 2 is a flow chart of another method for locating power grid faults and verifying power outage and power restoration strategies provided according to Embodiment 2 of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a power grid fault location and power outage restoration strategy verification device provided according to Embodiment 3 of the present invention;

[0023] Figure 4 It is a structural schematic diagram of an electronic device for implementing the power grid fault location and power outage restoration strategy verification method of an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] Embodiment 1

[0027] Figure 1 A flowchart of a method for locating a power grid fault and verifying a power outage and power restoration strategy is provided for the first embodiment of the present invention. This embodiment can be applied to the situation where there are multiple distribution network fault locating and power outage and power restoration strategies, and a strategy that can achieve the fastest and most accurate locating and power restoration is selected. The method can be executed by a power grid fault locating and power outage and power restoration strategy verification device, which can be implemented in the form of hardware and / or software, and can be configured in an electronic device with data processing capabilities. Figure 1 As shown, the method includes:

[0028] S110: Determine a target area distribution network model, at least one candidate fault location strategy, and at least one candidate power outage and power restoration strategy.

[0029] The nodes in the target area power grid model are the electrical equipment in the target area, and the edges are the connection relationships between the electrical equipment. The nodes in the target area power grid model also include the equipment information and operating parameters of the electrical equipment corresponding to the node.

[0030] The target area may be an area where the distribution network needs to be fault located and the power outage and restoration strategy needs to be verified. The target area power grid model may be a topological model structure with electrical equipment in the target area as nodes and the connection relationship of the electrical equipment as edges. The fault location strategy may be a strategy for locating electrical equipment where a fault occurs in the power grid after a fault occurs in the power grid. The candidate power outage and restoration strategy may be a collection of a series of operations for power outage and restoration after a fault occurs in electrical equipment in the power grid. The candidate fault location strategy may be a fault location strategy that needs to be screened. The candidate power outage and restoration strategy may be a power outage and restoration strategy that needs to be screened.

[0031] The distribution network is the closest to users in the entire power grid structure. The power supply reliability, quality, and power supply of the power grid are reflected through the distribution network. In most areas, fault location technology is applied to the maintenance of distribution network lines. The diverse line structures and different fault location logics result in a huge workload for the logic verification of self-healing of distribution network line faults, which cannot meet the demand for reliable power supply of the distribution network in a timely manner. How to judge the processing efficiency and accuracy of different fault location strategies and power outage and power restoration strategies has become a difficult problem.

[0032] In order to determine the distribution network situation in the target area, it is necessary to determine the distribution network model of the target area, and then obtain the connection relationship of the electrical equipment in the target area.

[0033] In addition, the equipment information of electrical equipment is added at the node. The equipment information includes equipment type and equipment parameters. The electrical equipment can be busbar, transformer, circuit breaker, load switch, disconnector and grounding disconnector, etc. It can also be outdoor switch box (ring network cabinet), distribution room, box transformer, platform transformer (pole transformer), cable junction box), feeder, trunk / branch line, overhead line segment, cable, cable terminal, cable intermediate joint, pole tower, pole load switch, pole circuit breaker, pole disconnector, drop-out fuse, pole arrester, reactive compensation device and power supply, etc.

[0034] In addition, it is necessary to determine at least one candidate fault location strategy and at least one candidate power-off and power-restore strategy to be verified. The fault location strategy can be a fault location strategy based on the traveling wave method, a fault location strategy based on a fault indicator, a fault location strategy based on information fusion, and a custom fault location strategy.

[0035] Optionally, determine the target area distribution network model, including:

[0036] Based on the geographic information system corresponding to the target area, determine the connection relationship, equipment information and operating parameters of each electrical equipment in the target area;

[0037] Based on the connection relationship of each electrical equipment, equipment information and operating parameters, a distribution network model of the target area is generated.

[0038] Geographic Information System (GIS system) is a computer system used to collect, store, analyze, manage and display geographic spatial data. It can combine geographic spatial data with attribute data and realize efficient processing of geographic spatial information through database management system and graphic processing technology.

[0039] Receive the electrical equipment model xml file from the GIS system as the source. When receiving, it can be done through a synchronization mechanism or an incremental method. Parse the model through the C programming language to obtain the graphic elements and operating parameters of the electrical equipment. Parse the model xml file according to the model compilation rules, install different graphic element rules, parse the model xml file, and determine the connection relationship of different electrical equipment and extract the operating parameters and equipment information of the electrical equipment. In the extraction process, only the equipment information and operating parameters of electrical equipment such as substations, switches, circuit breakers, lines, and connection terminals need to be extracted. Finally, the target area distribution network model is generated with the help of various electrical equipment, the connection relationship of each electrical equipment, the equipment information and operating parameters of the electrical equipment.

[0040] By determining the various electrical devices and the connection relationships of the electrical devices in the target area based on the geographic information system corresponding to the target area, the target area distribution network model finally generated can be as consistent as possible with the connection relationships of the electrical devices in the actual situation.

[0041] S120: According to at least one group of predetermined fault setting points, respectively set fault points for the target area distribution network model to obtain a fault distribution network model corresponding to each group of fault setting points.

[0042] The at least one predetermined set of fault setting points is determined based on actual fault points and fault types in the target area.

[0043] The fault setting point may be a point where a fault is set in a distribution network model of a target area.

[0044] In order to ensure that the final target fault location strategy and target power outage and restoration strategy can be more accurate, the selection of fault setting points is very important. To this end, the location and fault type of the fault points that actually existed in the target area in the historical period are obtained, and at least one set of fault setting points is established based on the location and fault type of the fault points that actually existed in the target area in the historical period.

[0045] For each group of fault setting points, the fault points are set for the target area distribution network model respectively, so as to obtain the corresponding fault distribution network model.

[0046] Exemplarily, there are two groups of fault setting points, group 1 fault points are electrical equipment A corresponding to fault type a and electrical equipment B corresponding to fault type b, and group 2 fault points are electrical equipment C corresponding to fault type c and electrical equipment D corresponding to fault type d.

[0047] At this time, according to the requirements of the fault setting point in the target area distribution network model, a fault of fault type a can be set at electrical equipment A in the target area distribution network model, and a fault of fault type b can be set at electrical equipment B, thereby obtaining a fault distribution network model.

[0048] Furthermore, according to the requirements of the fault setting point in the target area distribution network model, a fault of fault type c can be set at the electrical equipment C in the target area distribution network model, and a fault of fault type d can be set at the electrical equipment D in the target area distribution network model, thereby obtaining a fault distribution network model.

[0049] By setting fault points for the target area distribution network model according to at least one set of predetermined fault setting points, a fault distribution network model corresponding to each set of fault setting points is obtained, so that the generated fault distribution network model can be more consistent with the actual situation, thereby improving the accuracy of the final determination.

[0050] In an optional solution, the process of determining the predetermined at least one set of fault set points may include steps A1-A3:

[0051] Step A1: determine the topology structure of each fault analysis server in the target area.

[0052] Step A2: determining the fault data of each fault analysis server, wherein the fault data includes the fault type and fault location of the faulty electrical equipment.

[0053] Step A3: Based on the fault data and the topological structure of each fault analysis server, generate at least one set of corresponding fault setting points in the target area.

[0054] A fault analysis server can be a server specifically used to detect, analyze and diagnose system faults. It can collect fault information from various devices and systems (such as network devices, servers, applications, etc.), including error logs, abnormal performance indicator data, device status changes, etc. By comprehensively analyzing these data, the fault analysis server can determine the root cause of the fault and the scope of impact.

[0055] The fault setting point can be determined by analyzing the fault analysis servers in the target area. First, the topological structure of each fault analysis server in the target area is determined, and then the fault data of each fault analysis server is obtained to obtain the fault type and fault location of the faulty electrical equipment. Based on the fault data and the topological structure of each fault analysis server, the electrical equipment corresponding to each fault and the corresponding location are determined to obtain at least one set of fault setting points corresponding to the target area.

[0056] S130: For each fault distribution network model, determine at least one target fault location strategy and at least one target power outage and restoration strategy from each candidate fault location strategy and each candidate power outage and restoration strategy.

[0057] The target fault location strategy corresponding to each group of fault setting points is the fault location strategy with the fastest fault location among all candidate fault location strategies, and the target fault location strategy corresponding to each group of fault setting points is the power-off and power-on strategy with the fastest power-off and power-on among all power-off and power-on strategies.

[0058] After obtaining each fault distribution network model, the fault distribution network model can be tested through each candidate fault location strategy and each candidate power outage and restoration strategy to determine the accuracy and efficiency of each candidate fault location strategy and each candidate power outage and restoration strategy in different groups of fault setting points. Determine the target fault location strategy corresponding to each group of fault setting points as the fault location strategy with the fastest fault point location among each candidate fault location strategy, and the target fault location strategy corresponding to each group of fault setting points as the power outage and restoration strategy with the fastest power outage and restoration among each power outage and restoration strategy, so as to clarify the target fault location strategy and target power outage and restoration strategy that can achieve the fastest fault location and power outage restoration in different fault situations.

[0059] In an optional solution, after determining at least one target fault location strategy and at least one target power outage and power restoration strategy from each candidate fault location strategy and each candidate power outage and power restoration strategy for each fault distribution network model, the method further includes steps B1-B2:

[0060] Step B1: determine the fault characteristics of each group of fault setting points.

[0061] Step B2: Generate a fault location strategy table according to the fault characteristics, target fault location strategy and target power outage and restoration strategy corresponding to each group of fault setting points. The fault location strategy table records the corresponding relationship between the fault characteristics, target fault location strategy and target power outage and restoration strategy corresponding to each group of fault setting points.

[0062] After obtaining at least one target fault location strategy and at least one target power outage and restoration strategy corresponding to each group of fault setting points, in order to facilitate use in actual situations, the fault characteristics of each group of fault setting points can be determined, and based on the fault characteristics, target fault location strategies and target power outage and restoration strategies corresponding to each group of fault setting points, a fault location strategy table is generated.

[0063] In actual use, the fault characteristics in the distribution network under actual conditions can be analyzed, and based on the fault location strategy table, the corresponding target fault location strategy and target power outage and power restoration strategy can be determined, thereby achieving rapid recovery of the distribution network.

[0064] According to the technical solution of the embodiment of the present invention, by determining the target area distribution network model, at least one candidate fault location strategy and at least one candidate power outage and power restoration strategy; according to at least one group of fault setting points determined in advance, the fault points of the target area distribution network model are set respectively, and the fault distribution network model corresponding to each group of fault setting points is obtained, so that the generated fault distribution network model can be more in line with the actual situation, thereby improving the accuracy of the final determination; by determining at least one target fault location strategy and at least one target power outage and power restoration strategy from each candidate fault location strategy and each candidate power outage and power restoration strategy for each fault distribution network model, it is clear that under different fault conditions, the target fault location strategy and the target power outage and power restoration strategy that can achieve fault location and power outage recovery the fastest.

[0065] Embodiment 2

[0066] Figure 2 The present invention provides a flowchart of another method for locating power grid faults and verifying power outage and restoration strategies. Based on the above embodiments, this embodiment further optimizes the process of determining at least one target fault location strategy and at least one target power outage and restoration strategy from various candidate fault location strategies and various candidate power outage and restoration strategies for each fault distribution network model in the above embodiments. This embodiment can be combined with various optional solutions in one or more of the above embodiments. Figure 2 As shown, the power grid fault location and power outage restoration strategy verification method of this embodiment may include the following steps:

[0067] S210, determining a target area distribution network model, at least one candidate fault location strategy, and at least one candidate power outage and power restoration strategy, wherein the nodes in the target area power grid model are electrical equipment in the target area, and the edges are connection relationships between electrical equipment.

[0068] S220. According to at least one set of predetermined fault setting points, respectively set fault points for the target area distribution network model to obtain a fault distribution network model corresponding to each set of fault setting points. The predetermined at least one set of fault setting points is determined according to actual fault points and fault types in the target area.

[0069] S230: For each fault distribution network model, determine at least one target fault location strategy and at least one target power outage and restoration strategy from each candidate fault location strategy and each candidate power outage and restoration strategy.

[0070] The target fault location strategy corresponding to each group of fault setting points is the fault location strategy with the fastest fault location among all candidate fault location strategies, and the target fault location strategy corresponding to each group of fault setting points is the power-off and power-on strategy with the fastest power-off and power-on among all power-off and power-on strategies.

[0071] S240: Determine the fault impact range corresponding to each group of fault setting points according to the connection relationship between each electrical device in the target area distribution network model and at least one group of fault setting points.

[0072] By setting different groups of fault setting points in the distribution network model of the target area, the specific scope of the fault can be determined according to the connection relationship of each electrical equipment.

[0073] For example, when electrical device A is connected to electrical device B, if electrical device A fails, electrical device B may be affected. The degree to which electrical device B is affected by electrical device A can be determined based on existing methods or based on manual experience.

[0074] In an optional solution, according to the connection relationship of each electrical device in the target area distribution network model and at least one group of fault setting points, determining the fault impact range corresponding to each group of fault setting points may include steps C1-C3:

[0075] Step C1: for each group of fault setting points, determine the electrical equipment directly connected to the fault setting point to obtain the first fault equipment.

[0076] Step C2: Determine a second faulty device indirectly connected to the fault setting point according to the connection relationship between the various electrical devices in the target area distribution network model.

[0077] Step C3: Determine the fault impact range corresponding to the fault setting point according to the first faulty device, the second faulty device and the target area distribution network model.

[0078] For the fault impact range, for each group of fault setting points, the electrical equipment directly connected to the fault setting point can be determined as the first fault device; the second fault device indirectly connected to the fault setting point can be determined. At this time, the topological structure of the first fault device and the second fault device can be determined through the target area distribution network model, thereby obtaining the fault impact range.

[0079] According to the technical solution of the embodiment of the present invention, the fault impact range corresponding to each group of fault setting points is determined according to the connection relationship between each electrical equipment in the target area distribution network model and at least one group of fault setting points, so that when a fault occurs, the specific range affected by the fault can be determined in time.

[0080] Embodiment 3

[0081] Figure 3 The present invention provides a structural block diagram of a power grid fault location and power outage restoration strategy verification device. This embodiment can be applied to the situation where there are multiple distribution network fault location and power outage restoration strategies, and a strategy that can achieve the fastest and most accurate location and power restoration is selected. The power grid fault location and power outage restoration strategy verification device can be implemented in the form of hardware and / or software, and the power grid fault location and power outage restoration strategy verification device can be configured in an electronic device with data processing capabilities. Figure 3 As shown, the power grid fault location and power outage restoration strategy verification device of this embodiment may include: a data determination module 310, a fault point setting module 320 and a target strategy determination module 330. Among them:

[0082] Based on the above embodiment, optionally, the process of determining the predetermined at least one set of fault setting points includes:

[0083] Determine the topology of each fault analysis server in the target area;

[0084] Determine the fault data of each fault analysis server, the fault data including the fault type and fault location of the faulty electrical equipment;

[0085] At least one set of corresponding fault setting points in the target area is generated based on the fault data and the topological structure of each fault analysis server.

[0086] Based on the above embodiment, optionally, after the target strategy determination module 330, the following is further included:

[0087] Determine the fault characteristics of each group of fault setting points;

[0088] According to the fault characteristics, target fault location strategy and target power-off and power-restore strategy corresponding to each group of fault setting points, a fault location strategy table is generated, which records the corresponding relationship between the fault characteristics, target fault location strategy and target power-off and power-restore strategy corresponding to each group of fault setting points.

[0089] Based on the above embodiment, optionally, after the target strategy determination module 330, the following is further included:

[0090] Based on the breadth-first search algorithm, the distribution network model of the target area is traversed to determine the isolated devices and the island range in the distribution network model of the target area; the isolated device is a device that is connected to only one electrical device among other electrical devices.

[0091] Based on the above embodiment, optionally, the data determination module 310 includes:

[0092] Based on the geographic information system corresponding to the target area, determine the connection relationship, equipment information and operating parameters of each electrical equipment in the target area;

[0093] Based on the connection relationship of each electrical equipment, equipment information and operating parameters, a distribution network model of the target area is generated.

[0094] Based on the above embodiment, optionally, after the target strategy determination module 330, the following is further included:

[0095] According to the connection relationship between the various electrical devices in the target area distribution network model and at least one group of fault setting points, the fault impact range corresponding to each group of fault setting points is determined.

[0096] On the basis of the above embodiment, optionally, according to the connection relationship of each electrical device in the target area distribution network model and at least one group of fault setting points, determining the fault impact range corresponding to each group of fault setting points includes:

[0097] For each group of fault setting points, determine the electrical equipment directly connected to the fault setting point to obtain a first faulty equipment;

[0098] Determine a second fault device indirectly connected to the fault setting point according to the connection relationship of each electrical device in the target area distribution network model;

[0099] According to the first faulty device, the second faulty device and the target area distribution network model, a fault impact range corresponding to the fault setting point is determined.

[0100] The power grid fault location and power outage restoration strategy verification device provided in the embodiment of the present invention can execute the power grid fault location and power outage restoration strategy verification method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0101] Embodiment 4

[0102] Figure 4 A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0103] like Figure 4 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can 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 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0104] A number of 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, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0105] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the power grid fault location and power outage restoration strategy verification method.

[0106] In some embodiments, the power grid fault location and power outage restoration strategy verification method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the power grid fault location and power outage restoration strategy verification method described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute the power grid fault location and power outage restoration strategy verification method in any other appropriate manner (for example, by means of firmware).

[0107] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0108] Computer programs for implementing the 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, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0109] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0110] To provide interaction with a user, the systems and techniques described herein may 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 the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the 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, voice input, or tactile input).

[0111] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0112] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0113] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0114] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for locating power grid faults and verifying power outage and power restoration strategies, characterized in that: include: Determine a target area distribution network model, at least one candidate fault location strategy, and at least one candidate power outage and power restoration strategy, wherein the nodes in the target area power grid model are electrical equipment in the target area, and the edges are connection relationships between electrical equipment; the nodes in the target area power grid model also include equipment information and operating parameters of the electrical equipment corresponding to the node; According to at least one set of predetermined fault setting points, respectively setting fault points for the target area distribution network model to obtain a fault distribution network model corresponding to each set of fault setting points, wherein the at least one set of predetermined fault setting points is determined according to actual fault points and fault types in the target area; For each fault distribution network model, at least one target fault location strategy and at least one target power outage and power restoration strategy are determined from each candidate fault location strategy and each candidate power outage and power restoration strategy. The target fault location strategy corresponding to each group of fault setting points is the fault location strategy with the fastest fault point location among each candidate fault location strategy. The target fault location strategy corresponding to each group of fault setting points is the power outage and power restoration strategy with the fastest power outage and power restoration among each power outage and power restoration strategy.

2. The method according to claim 1, characterized in that: The process of determining at least one predetermined set of fault set points comprises: Determine the topology of each fault analysis server in the target area; Determining fault data of each fault analysis server, wherein the fault data includes a fault type and a fault location of the faulty electrical equipment; At least one set of corresponding fault setting points in the target area is generated based on the fault data and the topological structure of each fault analysis server.

3. The method according to claim 1, characterized in that After determining at least one target fault location strategy and at least one target power outage and restoration strategy from each candidate fault location strategy and each candidate power outage and restoration strategy for each fault distribution network model, the method further includes: Determine the fault characteristics of each group of fault setting points; A fault location strategy table is generated according to the fault characteristics, target fault location strategy and target power outage and restoration strategy corresponding to each group of fault setting points. The fault location strategy table records the corresponding relationship between the fault characteristics, target fault location strategy and target power outage and restoration strategy corresponding to each group of fault setting points.

4. The method according to claim 1, characterized in that After determining at least one target fault location strategy and at least one target power failure and power restoration strategy, the method further includes: Based on a breadth-first search algorithm, the distribution network model of the target area is traversed to determine the isolated device and the island range in the distribution network model of the target area; the isolated device is a device that is connected to only one electrical device among other electrical devices.

5. The method according to claim 1, characterized in that Determine the distribution network model for the target area, including: Based on the geographic information system corresponding to the target area, determine the connection relationship, equipment information and operating parameters of each electrical equipment in the target area; Based on the connection relationship of each electrical equipment, equipment information and operating parameters, a distribution network model of the target area is generated.

6. The method according to claim 1, characterized in that After respectively setting the fault points of the target area distribution network model according to at least one set of predetermined fault setting points, the method further includes: According to the connection relationship between the various electrical devices in the target area distribution network model and at least one group of fault setting points, the fault impact range corresponding to each group of fault setting points is determined.

7. The method according to claim 6, characterized in that According to the connection relationship of each electrical device in the target area distribution network model and at least one group of fault setting points, determining the fault impact range corresponding to each group of fault setting points includes: For each group of fault setting points, determine the electrical equipment directly connected to the fault setting point to obtain a first faulty equipment; Determine a second fault device indirectly connected to the fault setting point according to the connection relationship of each electrical device in the target area distribution network model; According to the first faulty device, the second faulty device and the target area distribution network model, a fault impact range corresponding to the fault setting point is determined.

8. A power grid fault location and power outage restoration strategy verification device, characterized in that: include: A data determination module is used to determine a target area distribution network model, at least one candidate fault location strategy, and at least one candidate power outage and power restoration strategy, wherein the nodes in the target area power grid model are electrical devices in the target area, and the edges are connection relationships between electrical devices; A fault point setting module, configured to respectively set fault points for the target area distribution network model according to at least one predetermined set of fault setting points, and obtain a fault distribution network model corresponding to each set of fault setting points, wherein the predetermined at least one set of fault setting points is determined according to actual fault points and fault types in the target area; The target strategy determination module is used to determine at least one target fault location strategy and at least one target power outage and power restoration strategy from each candidate fault location strategy and each candidate power outage and power restoration strategy for each fault distribution network model. The target fault location strategy corresponding to each group of fault setting points is the fault location strategy with the fastest fault point location among each candidate fault location strategy. The target fault location strategy corresponding to each group of fault setting points is the power outage and power restoration strategy with the fastest power outage and power restoration among each power outage and power restoration strategy.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the power grid fault location and power outage restoration strategy verification method described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the power grid fault location and power outage restoration strategy verification method described in any one of claims 1 to 7 when executed.

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