Line fault location method, system, device and storage medium

Abstract

The present invention discloses a line fault location method, system, device, and storage medium. The line fault location method preprocesses a received first power outage event to obtain a second power outage event after format conversion and device information conversion. The method then selects the second power outage event outside the preset power outage schedule as a third power outage event, i.e., an abnormal power outage event. The method then uses action signals to locate the suspected switch and fault area that caused the third power outage event. This method achieves automated location of distribution network line faults, improves the efficiency of discovering and troubleshooting distribution network line faults, and provides protection for users. The present invention can be widely applied in the field of data processing technology.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to a line fault location method, system, device and storage medium. Background Art

[0002] Currently, due to cost and historical reasons, the automation rate of medium-voltage distribution networks remains low. Real-time telesignaling and telemetry capabilities are often incomplete or lack functionality, leading to monitoring blind spots. When a line fault occurs, the distribution network dispatching technical support system is unable to detect and troubleshoot the problem in a timely manner, resulting in extended power outages and financial losses for users. Summary of the Invention

[0003] The purpose of the present invention is to solve one of the technical problems existing in the prior art to at least a certain extent.

[0004] To this end, embodiments of the present invention provide a line fault locating method, system, device, and storage medium, which improve the efficiency of discovering and eliminating line faults through line fault locating.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by the embodiments of the present invention include:

[0006] In one aspect, an embodiment of the present invention provides a line fault locating method, comprising the following steps:

[0007] In response to receiving a first power outage event, pre-processing the first power outage event to generate a second power outage event, wherein the pre-processing includes format conversion and device information conversion;

[0008] Comparing the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event, where the third power outage event is the second power outage event outside the power outage plan time;

[0009] The suspected switch and fault area causing the third power outage event are located by combining the third power outage event and the action signal, wherein the action signal includes a fault indicator action signal and a protection action signal.

[0010] A line fault locating method according to an embodiment of the present invention pre-processes a received first power outage event to obtain a second power outage event after format conversion and device information conversion, and selects the second power outage event outside the preset power outage plan time as the third power outage event, i.e., the abnormal power outage event. Combined with the action signal, the suspicious switch and fault area causing the third power outage event are located, thereby realizing the automatic positioning of distribution network line faults, improving the efficiency of discovering and eliminating distribution network line faults, and providing protection for users.

[0011] In addition, a line fault location method according to the above embodiment of the present invention may also have the following additional technical features:

[0012] Furthermore, in a line fault locating method according to an embodiment of the present invention, in response to receiving a first power outage event, pre-processing the first power outage event to generate a second power outage event includes:

[0013] converting the format of the first power outage event into a target format;

[0014] The device information in the first power outage event is converted into target device information according to a preset device information mapping table to obtain the second power outage event.

[0015] Furthermore, in one embodiment of the present invention, comparing the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event includes:

[0016] Obtaining the planned power outage time;

[0017] The time stamp of the second power outage event is compared with the planned power outage time, and the second power outage event within the planned power outage time range is excluded to obtain the third power outage event.

[0018] Furthermore, in one embodiment of the present invention, the combining the third power outage event and the action signal to locate the suspicious switch causing the third power outage event includes:

[0019] Starting from each power outage distribution transformer substation, searching in the direction of the power supply to obtain a plurality of first switch sets, wherein the power outage distribution transformer substation is a distribution transformer substation where the third power outage event occurs;

[0020] Calculate the intersection of each of the first switch sets to obtain a second switch set;

[0021] In the second switch set, the non-automatic switch closest to each of the power outage distribution transformer areas is selected as the suspicious switch, and the non-automatic switch is a switch that does not have a real-time telesignaling and telemetry function.

[0022] Furthermore, in one embodiment of the present invention, combining the third power outage event and the action signal to locate the fault area causing the third power outage event includes:

[0023] Confirming the existence of a signaling device, taking the signaling device farthest from the power supply as the upper boundary of the fault area, the signaling device being a device that has the action signal;

[0024] An automatic switch is used as the lower boundary of the fault area, and the automatic switch is a switch with real-time telesignaling and telemetry functions;

[0025] The fault area is located according to the upper boundary and the lower boundary of the fault area.

[0026] Furthermore, in one embodiment of the present invention, the combining the third power outage event and the action signal to locate the fault area causing the third power outage event further includes:

[0027] Confirm that the signaling device does not exist, and use the suspected switch as the upper boundary of the fault area;

[0028] The automation switch is used as the lower boundary of the fault area;

[0029] The fault area is located according to the upper boundary and the lower boundary of the fault area.

[0030] Furthermore, in one embodiment of the present invention, after locating the suspected switch and fault area causing the third power outage event by combining the third power outage event and the action signal, the method further includes:

[0031] The suspicious switch and the fault area are displayed.

[0032] On the other hand, an embodiment of the present invention provides a line fault location system, including:

[0033] a preprocessing module, configured to, in response to receiving a first power outage event, preprocess the first power outage event to generate a second power outage event, wherein the preprocessing includes format conversion and device information conversion;

[0034] a comparison module, configured to compare the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event, wherein the third power outage event is the second power outage event outside the power outage plan time;

[0035] A positioning module is used to locate the suspicious switch and fault area causing the third power outage event in combination with the third power outage event and the action signal, wherein the action signal includes a fault indicator action signal and a protection action signal.

[0036] On the other hand, an embodiment of the present invention provides a line fault locating device, comprising:

[0037] at least one processor;

[0038] at least one memory for storing at least one program;

[0039] When the at least one program is executed by the at least one processor, the at least one processor is enabled to implement the line fault locating method.

[0040] On the other hand, an embodiment of the present invention provides a storage medium storing a program executable by a processor. When the program is executed by the processor, it is used to implement the line fault location method.

[0041] The advantages and benefits of the present invention will be described in part in the following description and will become apparent from the following description or learned through practice of the present application:

[0042] The embodiment of the present invention pre-processes the received first power outage event to obtain the second power outage event after format conversion and device information conversion, and selects the second power outage event outside the preset power outage plan time as the third power outage event, that is, the abnormal power outage event, and combines the action signal to locate the suspicious switch and fault area that caused the third power outage event, thereby realizing the automatic positioning of distribution network line faults, improving the efficiency of discovering and eliminating distribution network line faults, and providing protection for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following introduction is made to the drawings of the embodiments of the present application or the related technical solutions in the prior art. It should be understood that the drawings introduced below are only for the convenience of clearly describing some embodiments of the technical solutions of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative work.

[0044] Figure 1 This is a flow chart of a specific embodiment of a line fault location method according to the present invention;

[0045] Figure 2 A schematic diagram of locating a suspected switch and a fault area according to a specific embodiment of a line fault locating method of the present invention;

[0046] Figure 3 A schematic diagram showing a suspected switch and a fault area in a specific embodiment of a line fault location method of the present invention;

[0047] Figure 4 This is a structural diagram of a specific embodiment of a line fault location system according to the present invention;

[0048] Figure 5 The figure is a structural diagram of a specific embodiment of a line fault locating device of the present invention. DETAILED DESCRIPTION

[0049] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. The step numbers in the following embodiments are provided only for the convenience of explanation and do not limit the order of the steps. The order of execution of the steps in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0050] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0051] References to "embodiments" in this disclosure mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] At present, due to cost and historical reasons, the automation rate of medium-voltage distribution network lines is still very low. They do not have real-time telesignaling and telemetry functions or are incomplete in function, and there are monitoring blind spots. When a line fault occurs, the distribution network dispatching technical support system is unable to detect and eliminate the fault in time, resulting in an extension of the power outage time, causing economic losses to users. To this end, the present invention proposes a line fault positioning method, system, device and storage medium, which pre-processes the received first power outage event to obtain a second power outage event after format conversion and device information conversion, and selects the second power outage event outside the preset power outage plan time as the third power outage event, that is, an abnormal power outage event, and combines the action signal to locate the suspicious switch and fault area that caused the third power outage event, thereby realizing the automatic positioning of distribution network line faults, improving the efficiency of discovering and eliminating distribution network line faults, and providing protection for users.

[0053] A line fault location method, system, device, and storage medium according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings. First, a line fault location method according to embodiments of the present invention will be described with reference to the accompanying drawings.

[0054] Reference Figure 1 In an embodiment of the present invention, a line fault locating method is provided. A line fault locating method in an embodiment of the present invention can be applied to a terminal, a server, or software running in a terminal or a server. The terminal can be a tablet computer, a laptop computer, a desktop computer, etc., but is not limited thereto. The server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content distribution networks (CDNs), and big data and artificial intelligence platforms. A line fault locating method in an embodiment of the present invention mainly includes the following steps:

[0055] S101: In response to receiving a first power outage event, pre-process the first power outage event to generate a second power outage event;

[0056] Among them, preprocessing includes format conversion and device information conversion.

[0057] In an embodiment of the present invention, S101 can be further divided into the following steps S1011-S1012:

[0058] Step S1011: converting the format of the first power outage event into a target format;

[0059] It is understood that, when receiving first power outage events sent by various systems, the formats of the first power outage events may be different. In this embodiment of the present invention, the format of the first power outage event is converted into a target format to facilitate subsequent processing of first power outage events originating from different systems.

[0060] Optionally, the target format is a format that can be received and recognized by the embodiment of the present invention.

[0061] Step S1012: Convert the device information in the first power outage event into target device information according to a preset device information mapping table to obtain a second power outage event.

[0062] In conjunction with step S1011, it can be seen that the device information involved in the first power outage event from different systems may be different. In an embodiment of the present invention, the device information in the first power outage event is converted into target device information through a preset device information mapping table to facilitate subsequent processing of the first power outage event from different systems.

[0063] Optionally, the target device information is information such as a device ID that can be received and identified by the embodiment of the present invention.

[0064] After completing the format conversion and device information conversion of the first power outage event, a second power outage event is obtained.

[0065] S102, comparing the time stamp of the second power outage event with the preset power outage plan time to obtain a third power outage event;

[0066] Among them, the third power outage event is the second power outage event outside the planned power outage time.

[0067] S102 can be further divided into the following steps S1021-S1022:

[0068] Step S1021: Obtain the planned power outage time;

[0069] In an embodiment of the present invention, the stored planned power outage time is obtained from a storage module.

[0070] Step S1022: Compare the time stamp of the second power outage event with the planned power outage time, exclude the second power outage event within the planned power outage time range, and obtain a third power outage event.

[0071] Specifically, the time stamp of the second power outage event is compared with the planned power outage time, the second power outage event within the planned power outage time range is excluded, and the remaining second power outage event is retained as the third power outage event, that is, the abnormal power outage event (unplanned power outage event).

[0072] S103: Based on the third power outage event and the action signal, locate the suspected switch and fault area causing the third power outage event.

[0073] Among them, the action signal includes a fault indicator action signal and a protection action signal.

[0074] Optionally, the fault indicator action signal includes a normal flip action and a ground flip action, and the protection action signal includes a normal short circuit fault and a zero-sequence fault.

[0075] Specifically, in step S103:

[0076] 1. Based on the third power outage event and the action signal, locate the suspicious switch that caused the third power outage event, including:

[0077] 1) Starting from each power outage distribution transformer area, searching in the direction of the power supply to obtain a plurality of first switch sets, wherein the power outage distribution transformer area is the distribution transformer area where the third power outage event occurs;

[0078] 2) Find the intersection of each first switch set to obtain a second switch set;

[0079] 3) In the second switch set, the non-automatic switches closest to each power outage distribution transformer substation are selected as suspicious switches, wherein the non-automatic switches are switches that do not have real-time telesignaling and telemetry functions.

[0080] 2. Based on the third power outage event and the action signal, locate the fault area that caused the third power outage event, including:

[0081] 1-1) Confirm the presence of a signaling device, and use the signaling device farthest from the power supply as the upper boundary of the fault area, where the signaling device is the device that has the action signal;

[0082] 1-2) The automatic switch is used as the lower boundary of the fault area. The automatic switch is a switch with real-time telesignaling and telemetry functions;

[0083] 1-3) Locate the fault area according to the upper and lower boundaries of the fault area.

[0084] It is understandable that when the signaling device is an automatic switch, the upper and lower boundaries of the fault area in the embodiment of the present invention are both the automatic switch, which is equivalent to no lower boundary of the fault area, that is, the fault area is the area below the automatic switch.

[0085] 2-1) Confirm that there is no signaling equipment and use the suspected switch as the upper boundary of the fault area;

[0086] 2-2) The automation switch is used as the lower boundary of the fault area;

[0087] 2-3) Locate the fault area based on the upper and lower boundaries of the fault area.

[0088] It is understandable that when there are multiple signaling devices, it means there are multiple fault areas, and each fault area has the corresponding signaling device as the upper boundary and the corresponding automation switch as the lower boundary.

[0089] Reference Figure 2 Taking a distribution network including a station bus, outgoing line switches, three non-automated switches, two automated switches, a fault indicator, and nine distribution transformer substations (capable of sending a first power outage event) as an example, a specific application embodiment is proposed based on the method for locating suspicious switches and fault areas according to an embodiment of the present invention. The specific application embodiment mainly includes the following:

[0090] Scenario 1: The first power outage event is received in distribution transformer area 31 and distribution transformer area 32, and the automatic switch 1 does not send a protection action signal, and no remote signal for opening the power supply path is received:

[0091] Locating the suspicious switch:

[0092] 1) Starting from distribution transformer area 31 and distribution transformer area 32, respectively, searching in the direction of the power supply (searching to the outgoing line switch), two first switch sets are obtained, both of which are (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1);

[0093] 2) Find the intersection of each first switch set to obtain the second switch set, namely (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1);

[0094] 3) The non-automated switch closest to the distribution transformer area 31 and the distribution transformer area 32 , ie, the non-automated switch 3 , is selected from the second switch set as a suspicious switch.

[0095] Location of the fault area:

[0096] 1) Since no protection action signals are received from automatic switch 1 and automatic switch 2, the suspicious switch is used as the upper boundary of the fault area, that is, the non-automatic switch 3 is used as the upper boundary of the fault area;

[0097] 2) Take automation switch 1 and automation switch 2 as the lower boundary of the fault area;

[0098] 3) Locate the fault area based on the upper and lower boundaries of the fault area.

[0099] Scenario 2: The first power outage event is received in distribution transformer area 31 and distribution transformer area 32, and the overcurrent protection action signal of automatic switch 1 is received, but no remote signal for opening the power supply path is received:

[0100] Locating the suspicious switch:

[0101] 1) Starting from distribution transformer area 31 and distribution transformer area 32, respectively, searching in the direction of the power supply (searching to the outgoing line switch), two first switch sets are obtained, both of which are (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1);

[0102] 2) Find the intersection of each first switch set to obtain the second switch set, namely (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1);

[0103] 3) The non-automated switch closest to the distribution transformer area 31 and the distribution transformer area 32 , ie, the non-automated switch 3 , is selected from the second switch set as a suspicious switch.

[0104] Location of the fault area:

[0105] 1) Due to receiving the overcurrent protection action signal of the automation switch 1, the automation switch 1 is used as the upper boundary of the fault area;

[0106] 2) Since the overcurrent protection action signal of the automation switch 1 is received, it indicates that the fault area is below the automation switch 1. Therefore, there is no need to find the lower boundary here. The fault area is the area below the automation switch 1.

[0107] Scenario 3: The first power outage event is received for distribution transformer area 31, distribution transformer area 32, distribution transformer area 41, and distribution transformer area 42, and the overcurrent protection action signal is received for automation switch 1 and automation switch 2, but no remote signal for opening the power supply path is received:

[0108] Locating the suspicious switch:

[0109] 1) Starting from distribution transformer area 31, distribution transformer area 32, distribution transformer area 41, and distribution transformer area 42, respectively, search in the direction of the power supply (search to the outgoing line switch) to obtain four first switch sets, namely (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1), (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1), (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 2), and (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 2);

[0110] 2) Find the intersection of each of the first switch sets to obtain the second switch set, i.e., (non-automated switch 1, non-automated switch 2, non-automated switch 3);

[0111] 3) The non-automated switch closest to the distribution transformer area 31 and the distribution transformer area 32 , ie, the non-automated switch 3 , is selected from the second switch set as a suspicious switch.

[0112] Location of the fault area:

[0113] Since the overcurrent protection action signals of automation switch 1 and automation switch 2 are received, it indicates that there are two fault areas (fault area 1 and fault area 2). Combined with situation 2, it can be seen that fault area 1 is located below automation switch 1, and fault area 2 is located below automation switch 2.

[0114] Scenario 4: The first power outage event of distribution transformer area 11, distribution transformer area 12, distribution transformer area 21, distribution transformer area 22, distribution transformer area 23, distribution transformer area 31, distribution transformer area 32, distribution transformer area 41, and distribution transformer area 42 is received, and no remote signal is received:

[0115] Locating the suspicious switch:

[0116] 1) Starting from distribution transformer area 11, distribution transformer area 12, distribution transformer area 21, distribution transformer area 22, distribution transformer area 23, distribution transformer area 31, distribution transformer area 32, distribution transformer area 41 and distribution transformer area 42, respectively, search in the direction of power supply (search to the outgoing line switch), and obtain nine first switch sets, namely (non-automated switch 1), (non-automated switch 1), (non-automated switch 1, non-automated switch 2), (non-automated switch 1, non-automated switch 2), (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1), (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 1), (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 2), and (non-automated switch 1, non-automated switch 2, non-automated switch 3, automated switch 2);

[0117] 2) Find the intersection of each first switch set to obtain the second switch set, i.e. (non-automated switch 1);

[0118] 3) In the second switch set, the non-automatic switch closest to distribution transformer area 11, distribution transformer area 12, distribution transformer area 21, distribution transformer area 22, distribution transformer area 23, distribution transformer area 31, distribution transformer area 32, distribution transformer area 41 and distribution transformer area 42, that is, non-automatic switch 1, is selected as the suspicious switch.

[0119] Location of the fault area:

[0120] 1) Since no protection action signal is received, the suspicious switch is used as the upper boundary of the fault area, that is, the non-automated switch 1 is used as the upper boundary of the fault area;

[0121] 2) Using the fault indicator as the lower boundary of the fault area;

[0122] 3) Locate the fault area based on the upper and lower boundaries of the fault area.

[0123] In an embodiment of the present invention, after the suspicious switch and the fault area are located, the suspicious switch and the fault area are displayed.

[0124] Optionally, refer to Figure 3 , analyze the fault diagnosis information based on the suspicious switch and fault area, display the diagnosis information and the corresponding fault information record, and notify through screen push and picture push.

[0125] In combination with the line fault locating method described in steps S101-S103, it can be seen that the present invention pre-processes the received first power outage event to obtain a second power outage event after format conversion and device information conversion, and selects the second power outage event outside the preset power outage plan time as the third power outage event, that is, the abnormal power outage event, and locates the suspicious switch and fault area that caused the third power outage event in combination with the action signal, thereby realizing the automatic positioning of distribution network line faults, improving the efficiency of discovering and eliminating distribution network line faults, and providing protection for users.

[0126] Next, a line fault location system proposed according to an embodiment of the present application is described with reference to the accompanying drawings.

[0127] Figure 4 This is a structural diagram of a line fault location system according to an embodiment of the present application.

[0128] The system specifically includes:

[0129] A preprocessing module 401 is configured to, in response to receiving a first power outage event, preprocess the first power outage event to generate a second power outage event, wherein the preprocessing includes format conversion and device information conversion;

[0130] A comparison module 402 is configured to compare the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event, where the third power outage event is the second power outage event outside the power outage plan time;

[0131] The positioning module 403 is used to locate the suspected switch and fault area causing the third power outage event in combination with the third power outage event and the action signal, wherein the action signal includes a fault indicator action signal and a protection action signal.

[0132] It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments. The functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0133] Reference Figure 5 , an embodiment of the present application provides a line fault locating device, comprising:

[0134] at least one processor 501;

[0135] at least one memory 502, for storing at least one program;

[0136] When the at least one program is executed by the at least one processor 501, the at least one processor 501 implements the line fault locating method described in steps S101 to S103.

[0137] Similarly, the contents of the above method embodiments are applicable to the present device embodiments. The functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0138] In some optional embodiments, the function / operation mentioned in the block diagram may not occur in the order mentioned in the operation diagram. For example, depending on the function / operation involved, the two boxes shown in succession can actually be executed substantially simultaneously or the boxes can sometimes be executed in reverse order. In addition, the embodiments presented and described in the flow chart of the present application are provided in an exemplary manner for the purpose of providing a more comprehensive understanding of the technology. The disclosed method is not limited to the operations and logical flows presented herein. Optional embodiments are contemplated in which the order of the various operations is changed and the sub-operations described as a part of a larger operation are performed independently.

[0139] In addition, although the present application is described in the context of functional modules, it should be understood that, unless otherwise stated, one or more of the functions and / or features may be integrated into a single physical device and / or software module, or one or more functions and / or features may be implemented in separate physical devices or software modules. It is also understood that a detailed discussion of the actual implementation of each module is not necessary for understanding the present application. More specifically, given the properties, functions, and internal relationships of the various functional modules in the devices disclosed herein, the actual implementation of the module will be understood within the routine skills of an engineer. Therefore, a person skilled in the art can implement the present application as set forth in the claims using ordinary techniques without undue experimentation. It is also understood that the specific concepts disclosed are merely illustrative and are not intended to limit the scope of the present application, which is determined by the full scope of the appended claims and their equivalents.

[0140] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several programs for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0141] The logic and / or steps represented in a flowchart or otherwise described herein, for example, may be considered as an ordered list of executable programs for implementing the logical functions, and may be embodied in any computer-readable medium for use by, or in conjunction with, a program execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can retrieve and execute a program from a program execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, a program execution system, apparatus, or device.

[0142] More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic devices), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disc read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering, or processing in another suitable manner as necessary, and then stored in a computer memory.

[0143] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable program execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used to implement: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0144] In the above description of this specification, reference to the terms "one embodiment / example," "another embodiment / example," or "certain embodiments / examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0145] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

[0146] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present application. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A line fault location method, characterized in that: The following steps are involved: In response to receiving a first power outage event, pre-processing the first power outage event to generate a second power outage event, wherein the pre-processing includes format conversion and device information conversion; Comparing the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event, where the third power outage event is the second power outage event outside the power outage plan time; Locating the suspected switch and fault area causing the third power outage event based on the third power outage event and the action signal, wherein the action signal includes a fault indicator action signal and a protection action signal; Starting from each power outage distribution transformer substation, searching in the direction of the power supply to obtain a plurality of first switch sets, wherein the power outage distribution transformer substation is a distribution transformer substation where the third power outage event occurs; Calculate the intersection of each of the first switch sets to obtain a second switch set; Selecting the non-automatic switch closest to each of the power outage distribution transformer substations from the second switch set as the suspicious switch, wherein the non-automatic switch is a switch that does not have a real-time telesignaling and telemetry function; Confirming the existence of a signaling device, taking the signaling device farthest from the power supply as the upper boundary of the fault area, the signaling device being a device that has the action signal; An automatic switch is used as the lower boundary of the fault area, and the automatic switch is a switch with real-time telesignaling and telemetry functions; The fault area is located according to the upper boundary and the lower boundary of the fault area.

2. A line fault location method according to claim 1, characterized in that: In response to receiving the first power outage event, pre-processing the first power outage event to generate a second power outage event includes: converting the format of the first power outage event into a target format; The device information in the first power outage event is converted into target device information according to a preset device information mapping table to obtain the second power outage event.

3. A line fault location method according to claim 1, characterized in that: The comparing the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event includes: Obtaining the planned power outage time; The time stamp of the second power outage event is compared with the planned power outage time, and the second power outage event within the planned power outage time range is excluded to obtain the third power outage event.

4. A line fault location method according to claim 1, characterized in that: The locating the fault area causing the third power outage event by combining the third power outage event and the action signal further includes: Confirm that the signaling device does not exist, and use the suspected switch as the upper boundary of the fault area; The automation switch is used as the lower boundary of the fault area; The fault area is located according to the upper boundary and the lower boundary of the fault area.

5. A line fault location method according to claim 1, characterized in that: After locating the suspected switch and fault area causing the third power outage event by combining the third power outage event and the action signal, the method further includes: The suspicious switch and the fault area are displayed.

6. A line fault location system, characterized in that: include: a preprocessing module, configured to, in response to receiving a first power outage event, preprocess the first power outage event to generate a second power outage event, wherein the preprocessing includes format conversion and device information conversion; a comparison module, configured to compare the time stamp of the second power outage event with a preset power outage plan time to obtain a third power outage event, wherein the third power outage event is the second power outage event outside the power outage plan time; a positioning module, configured to locate the suspected switch and fault area causing the third power outage event by combining the third power outage event and an action signal, wherein the action signal includes a fault indicator action signal and a protection action signal; The positioning module is also used for: Starting from each power outage distribution transformer substation, searching in the direction of the power supply to obtain a plurality of first switch sets, wherein the power outage distribution transformer substation is a distribution transformer substation where the third power outage event occurs; Calculate the intersection of each of the first switch sets to obtain a second switch set; Selecting the non-automatic switch closest to each of the power outage distribution transformer substations from the second switch set as the suspicious switch, wherein the non-automatic switch is a switch that does not have a real-time telesignaling and telemetry function; Confirming the existence of a signaling device, taking the signaling device farthest from the power supply as the upper boundary of the fault area, the signaling device being a device that has the action signal; An automatic switch is used as the lower boundary of the fault area, and the automatic switch is a switch with real-time telesignaling and telemetry functions; The fault area is located according to the upper boundary and the lower boundary of the fault area.

7. A line fault locating device, characterized in that: include: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the line fault locating method according to any one of claims 1 to 5.

8. A storage medium storing a program executable by a processor, characterized in that: The processor-executable program is used to implement a line fault locating method according to any one of claims 1 to 5 when executed by the processor.

Images