A Fault Location Diagnosis Method and Related Device for Distribution Networks Based on Electrical Topology

Abstract

The present application discloses a method and related device for diagnosing breakpoint in a distribution network based on electrical topology, which determines whether the graph model file imported into the distribution network master station is normal. If so, it obtains the current hanging tag status of each feeder in the graph model file. When the hanging tag status is a non-maintenance status, it determines the device type of the breakpoint according to the device information in the graph model file; when the breakpoint is a collection switch, it determines whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, it obtains the switch status of the breakpoint. When the switch status is a closed state, it obtains a connection relationship list according to the device information of the breakpoint, and compares the connection relationship list with the connection relationship list in the preset database to determine whether the breakpoint lacks connection relationships, improving the technical problem that the existing graph model quality verification method does not detect the graph model after it is imported into the master station and can only find problems when the application runs abnormally, affecting the safety of power grid operation.

Description

Technical Field

[0001] This application relates to the technical field of distribution networks, and in particular, to a method and related device for diagnosing breakpoint in a distribution network based on electrical topology. Background Art

[0002] With the development of distribution network technology, the intelligent application of the distribution network master station increasingly relies on the distribution network graph model. The quality of the distribution network graph model has a great impact on the practical level of advanced applications such as power source tracing and fault location. In the GIS platform of the distribution network single-line diagram, there are unified specifications for various distribution network equipment graphic elements and drawing methods. However, due to the differences in the levels of single-line diagram drawing personnel, the quality of the single-line diagram model is uneven. Affected by the input of distribution network basic data, errors may also occur in the master station's parsing and warehousing of the graph model.

[0003] Existing graph model quality verification methods all verify the graph model when it is pushed to the distribution network master station or when the master station imports the graph model data. For the graph model after being imported into the master station, problems can only be discovered when the application runs abnormally, which affects the safety of power grid operation. Summary of the Invention

[0004] This application provides a method and related device for diagnosing breakpoint in a distribution network based on electrical topology, which is used to improve the technical problem that existing graph model quality verification methods do not detect the graph model after being imported into the master station, and problems can only be discovered when the application runs abnormally, affecting the safety of power grid operation.

[0005] In view of this, the first aspect of this application provides a method for diagnosing breakpoint in a distribution network based on electrical topology, including:

[0006] S1. Determine whether the graph model file imported into the distribution network master station is normal. If so, execute step S2;

[0007] S2. Obtain the current hanging tag status of each feeder in the graph model file. When the hanging tag status is a non-maintenance status, determine the device type of the breakpoint according to the device information in the graph model file;

[0008] S3. When the breakpoint is a collection switch, determine whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, execute step S4;

[0009] S4. Obtain the switch status of the breakpoint. When the switch status is a closed state, execute step S5;

[0010] S5. Obtain a connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in the preset database, and determine whether the breakpoint lacks a connection relationship.

[0011] Optionally, determining whether the imported graphic model file is normal includes:

[0012] Determining whether the model corresponding to each feeder in the imported graphic model file is normal according to the import situation log of the graphic model import program.

[0013] Optionally, determining the device type of the breakpoint according to the device information in the graphic model file includes:

[0014] Matching the device information of the breakpoint in the graphic model file with the tie switch information in the interruption ledger, and determining whether the value of the Switch.isRing field in the device information in the graphic model file is true;

[0015] If so, determining that the breakpoint is a tie switch; if not, obtaining the value of the C1216_DEVTYPE field of the breakpoint according to the device ID of the breakpoint.

[0016] If the value of the C1216_DEVTYPE field of the breakpoint is SW, determining that the breakpoint is a switch device, and checking whether the device information in the graphic model file contains the value of the ConductingEquipment.daCommAddress field;

[0017] If the ConductingEquipment.daCommAddress field value is included, determining that the breakpoint is a collection switch.

[0018] Optionally, the method further includes:

[0019] If the value of the C1216_DEVTYPE field of the breakpoint is LN, determining that the breakpoint is a line device, and jumping to execute step S5.

[0020] Optionally, the method further includes:

[0021] When the hanging plate status is the maintenance status, outputting the result.

[0022] Optionally, when the breakpoint is a collection switch, determining whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint includes:

[0023] When the breakpoint is a collection switch, obtaining the data type of the associated point of the breakpoint;

[0024] Determining whether the value of the data type contains DI or AI. If so, determining that the parameters associated with the breakpoint are correct; if not, determining that the parameters associated with the breakpoint are incorrect.

[0025] The second aspect of the present application provides a distribution network breakpoint diagnosis system based on electrical topology, including:

[0026] A first judgment module, configured to judge whether the graphic model file imported into the distribution network master station is normal. If so, trigger the first acquisition module;

[0027] The first acquisition module is configured to acquire the current hanging tag status of each feeder in the graphic model file. When the hanging tag status is a non-maintenance status, determine the device type of the breakpoint according to the device information in the graphic model file;

[0028] A second judgment module, configured to, when the breakpoint is a collection switch, judge whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, trigger the second acquisition module;

[0029] The second acquisition module is configured to acquire the switch status of the breakpoint. When the switch status is a closed state, trigger the comparison module;

[0030] The comparison module is configured to obtain a connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in the preset database, and determine whether the breakpoint lacks a connection relationship.

[0031] Optionally, the first acquisition module is specifically configured to:

[0032] Acquire the current hanging tag status of each feeder in the single-line diagram graphic model. When the hanging tag status is a non-maintenance status, match the device information of the breakpoint in the graphic model file with the tie switch information in the interruption ledger, and judge whether the value of the Switch.isRing field in the device information in the graphic model file is true;

[0033] If so, determine that the breakpoint is a tie switch. If not, obtain the value of the C1216_DEVTYPE field of the breakpoint according to the device ID of the breakpoint;

[0034] If the value of the C1216_DEVTYPE field of the breakpoint is SW, determine that the breakpoint is a switch device, and check whether the device information in the graphic model file contains the value of the ConductingEquipment.daCommAddress field;

[0035] If the value of the ConductingEquipment.daCommAddress field is included, determine that the breakpoint is a collection switch.

[0036] In the third aspect of the present application, a distribution network breakpoint diagnosis device based on electrical topology is provided. The device includes a processor and a memory;

[0037] The memory is used to store program codes and transmit the program codes to the processor;

[0038] The processor is used to execute any one of the distribution network breakpoint diagnosis methods based on electrical topology described in the first aspect according to the instructions in the program codes.

[0039] In the fourth aspect of the present application, a computer-readable storage medium is provided. The computer-readable storage medium is used to store program codes, and when the program codes are executed by a processor, any one of the distribution network breakpoint diagnosis methods based on electrical topology described in the first aspect is implemented.

[0040] It can be seen from the above technical solutions that the present application has the following advantages:

[0041] The present application provides a distribution network breakpoint diagnosis method based on electrical topology, including: S1. Determine whether the graph model file imported into the distribution network master station is normal. If so, execute step S2; S2. Obtain the current hanging tag status of each feeder in the graph model file. When the hanging tag status is a non-maintenance status, determine the device type of the breakpoint according to the device information in the graph model file; S3. When the breakpoint is a collection switch, judge whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, execute step S4; S4. Obtain the switch status of the breakpoint. When the switch status is a closed state, execute step S5; S5. Obtain the connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in the preset database, and determine whether the breakpoint lacks a connection relationship.

[0042] In the present application, for the graph model file that has been imported into the distribution network master station, obtaining the current maintenance status of each feeder, and detecting whether the parameters in the graph model file are correctly associated with the database, whether the devices on the single-line diagram are consistent with the actual operation situation, etc., can solve problems such as the grid operation risks brought by non-standard graph model files, incorrect associated parameters, and abnormal acquisition status, and improve the technical problem that the existing graph model quality verification method does not detect the graph model after it is imported into the master station and can only find problems when the application runs abnormally, affecting the safety of grid operation. Description of the Drawings

[0043] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0044] Figure 1 It is a flowchart of a method for diagnosing breakpoint in a distribution network based on electrical topology provided by an embodiment of the present application;

[0045] Figure 2 It is a structural diagram of a system for diagnosing breakpoint in a distribution network based on electrical topology provided by an embodiment of the present application. Detailed implementation manners

[0046] The present application provides a method for diagnosing breakpoint in a distribution network based on electrical topology and related devices, which is used to improve the technical problem that the existing graph model quality verification method does not detect the graph model after it is imported into the master station, and can only find problems when the application runs abnormally, affecting the safety of power grid operation.

[0047] In order to enable those skilled in the art to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0048] Currently, existing graph model quality verification tools all verify the graph model data when the graph model is pushed to the distribution network master station or when the master station imports the graph model data. For the basic device data, association relationships, and topological connection conditions in the model file, the quality of the graph model is judged. The graph model application party can intuitively understand whether the drawing of the single-line diagram graph model is carried out according to the specifications and whether it meets the application requirements through the judgment results. However, for the problems such as whether the parameters in the graph model after being imported into the master station are correctly associated with the database and whether the device power supply on the single-line diagram is consistent with the actual operation situation, they still need to be discovered when the advanced application runs abnormally. The search and rectification of problems have a certain delay, and it is difficult to meet the real-time requirements of distribution network operation monitoring, thus affecting the safety of distribution network operation.

[0049] To improve the above problems, please refer to Figure 1 , an embodiment of the present application provides a method for diagnosing breakpoint in a distribution network based on electrical topology, including:

[0050] S1. Determine whether the graphic model file imported into the distribution network master station is normal. If so, execute step S2.

[0051] The basic data of the graphic model diagnosis program comes from the real-time data information directly collected by the distribution network master station system, the log information of the imported graphic model file, the parameter library information after import, and the graphic model file of the distribution network GIS system. After the graphic model file on the GIS platform is parsed and stored in the database by the master station graphic model import program, analyze the graphic model file, pre-configure the verification content required under various service states, analyze the import situation log of the first-area graphic model import program, preliminarily analyze the model import error log corresponding to each feeder, and obtain relevant information to determine whether the model import corresponding to each feeder in the graphic model file is normal. If there is an error, output the result. If it is normal, execute step S2.

[0052] S2. Obtain the current hanging tag status of each feeder in the graphic model file. When the hanging tag status is not in the maintenance state, determine the device type of the breakpoint according to the device information in the graphic model file.

[0053] For each feeder, obtain the current hanging tag status of the feeder in real time. If the hanging tag status is in the maintenance state, output the result. If the hanging tag status is not in the maintenance state, after locating the breakpoint in the graphic model file, determine the device type of the breakpoint according to the device information in the graphic model file.

[0054] The specific process of determining the device type of the breakpoint according to the device information in the graphic model file is as follows:

[0055] Match the device information of the breakpoint in the graphic model file with the tie switch information in the interruption ledger, and determine whether the value of the Switch.isRing field in the device information in the graphic model file is true;

[0056] If so, determine that the breakpoint is a tie switch. If not, obtain the value of the C1216_DEVTYPE field of the breakpoint according to the device ID of the breakpoint. The value of the C1216_DEVTYPE field in the device table can be viewed according to the device ID of the breakpoint;

[0057] If the value of the C1216_DEVTYPE field of the breakpoint is SW, determine that the breakpoint is a switch device, and check whether the value of the ConductingEquipment.daCommAddress field is included in the device information in the graphic model file; after determining that the breakpoint is a switch device, the device information in the graphic model file can be matched with the device information in the model to check whether the value of the ConductingEquipment.daCommAddress field is included in the device information in the model;

[0058] If the value of the ConductingEquipment.daCommAddress field is included, it is determined that the breakpoint is the acquisition switch;

[0059] If the value of the C1216_DEVTYPE field of the breakpoint is LN, it is determined that the breakpoint is a line device, and the process jumps to step S5.

[0060] S3. When the breakpoint is the acquisition switch, determine whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, execute step S4.

[0061] When the breakpoint is the acquisition switch, obtain the data type of the associated point of the breakpoint (i.e., all points associated with the breakpoint); determine whether the value of the data type contains DI or AI. If so, it is determined that the parameters associated with the breakpoint are correct, and step S4 is executed. If not, it is determined that the parameters associated with the breakpoint are incorrect, and the result is output. By determining whether the value of the data type contains DI or AI, it is determined whether the association is correct. These are the digital quantity points and analog quantity points of the acquisition switch.

[0062] S4. Obtain the switch state of the breakpoint. When the switch state is the closed state, execute step S5.

[0063] According to the point value of the switch state whose data type is the breakpoint, obtain the memory library interface result and obtain the switch state, so as to determine whether the return result contains open or closed. If the return result is closed, that is, the switch state is closed, execute step S5. If the return result is a port, output the result.

[0064] S5. Obtain the connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in the preset database, and determine whether the breakpoint lacks a connection relationship.

[0065] Analyze and find the connection relationship list in the relational database according to the device ID of the breakpoint, analyze and find the connection relationship list in the model according to the device information of the breakpoint, and compare with the connection relationship list in the model as the standard; determine whether the elements of the connection relationship list in the model exist in the connection relationship list in the database to determine whether the connection relationship is missing, and finally output the result.

[0066] The embodiments of the present application can achieve automatic positioning of graph model problems. By parsing the GIS model files after warehousing and analyzing the connection relationships of equipment in Area 1, the output results of situations such as main - distribution splicing errors, abnormal connection relationships, point - parameter associations, and abnormal disconnection positions of switches in the single - line diagrams of the distribution network master station system are summarized to obtain the summary results of feeder topology anomalies, and the causes of the anomalies are classified and attributed to each responsible platform (such as GIS errors, terminal telemetry errors, model parsing and import errors, etc.), which is convenient for maintenance personnel to troubleshoot topology connection problems.

[0067] Compared with the prior art, the embodiments of the present application mainly have the following four advantages: 1. The verification object is the single - line graph model that has been imported into the distribution network master station and is in application, which conforms to the actual business requirements; 2. It can automatically locate the equipment with problems, greatly reducing the time for single - line diagram drawing personnel and master station operation and maintenance personnel to find the problem equipment; 3. On the basis of analyzing the graph model files, the consideration of the real - time operation status of the distribution network is added, effectively improving the accuracy of topology analysis; 4. The verification logic can be expanded and adjusted according to regional characteristics and application scenarios, which is convenient for application and promotion.

[0068] Compared with manually analyzing and locating breakpoints and analyzing the reasons for breaks, the embodiments of the present application use a computer system to obtain relevant data, relevant analysis logs, and real - time operation data for analysis, with extremely high efficiency and accuracy, and can effectively discover breakpoints in distribution network lines and solve the power grid operation risks brought by non - standard graph model files, incorrect associated parameters, and abnormal acquisition status.

[0069] For the graph model files that have been imported into the distribution network master station in the embodiments of the present application, the current maintenance status of each feeder is obtained, and it is detected whether the parameters in the graph model files are correctly associated with those in the database, and whether the equipment on the single - line diagram is consistent with the actual operation situation, etc. This can solve problems such as power grid operation risks brought by non - standard graph model files, incorrect associated parameters, and abnormal acquisition status, and improve the technical problem that the existing graph model quality verification method does not detect the graph model after it is imported into the master station and can only find problems when the application runs abnormally, affecting the security of power grid operation.

[0070] The above is an embodiment of a method for diagnosing distribution network breakpoints based on electrical topology provided by the present application. The following is an embodiment of a system for diagnosing distribution network breakpoints based on electrical topology provided by the present application.

[0071] Please refer to Figure 2 For a system for diagnosing distribution network breakpoints based on electrical topology provided by the embodiments of the present application, it includes:

[0072] A first judgment module, used to judge whether the graph model file imported into the distribution network master station is normal. If so, it triggers the first acquisition module;

[0073] The first acquisition module is used to acquire the current hanging tag status of each feeder in the diagram model file. When the hanging tag status is in a non-maintenance state, determine the device type of the breakpoint according to the device information in the diagram model file.

[0074] The second judgment module is used to, when the breakpoint is an acquisition switch, judge whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, trigger the second acquisition module.

[0075] The second acquisition module is used to acquire the switch status of the breakpoint. When the switch status is in a closed state, trigger the comparison module.

[0076] The comparison module is used to acquire the connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in the preset database, and determine whether the breakpoint lacks connection relationships.

[0077] As a further improvement, the first acquisition module is specifically used for:

[0078] Acquire the current hanging tag status of each feeder in the single-line diagram model. When the hanging tag status is in a non-maintenance state, match the device information of the breakpoint in the diagram model file with the tie switch information in the interruption ledger, and judge whether the value of the Switch.isRing field in the device information in the diagram model file is true;

[0079] If so, determine that the breakpoint is a tie switch. If not, obtain the value of the C1216_DEVTYPE field of the breakpoint according to the device ID of the breakpoint;

[0080] If the value of the C1216_DEVTYPE field of the breakpoint is SW, determine that the breakpoint is a switch device, and check whether the device information in the diagram model file contains the value of the ConductingEquipment.daCommAddress field;

[0081] If it contains the value of the ConductingEquipment.daCommAddress field, determine that the breakpoint is an acquisition switch.

[0082] As a further improvement, the second judgment module is specifically used for:

[0083] When the breakpoint is an acquisition switch, acquire the data type of the associated point of the breakpoint;

[0084] Judge whether the value of the data type contains DI or AI. If so, determine that the parameters associated with the breakpoint are correct and trigger the second acquisition module. If not, determine that the parameters associated with the breakpoint are incorrect.

[0085] Compared with the prior art, the embodiments of the present application mainly have the following four advantages: 1. The verification object is the single-line diagram model that has been imported into the distribution network master station and is in application, which conforms to the actual business requirements; 2. The system can automatically locate the equipment with problems, greatly reducing the time for the single-line diagram drawing personnel and the master station operation and maintenance personnel to find the problem equipment; 3. Based on the analysis of the diagram model file, the system takes into account the real-time operation status of the distribution network, effectively improving the accuracy of topological analysis; 4. The verification logic of the system is extensible and can be adjusted according to regional characteristics and application scenarios, facilitating application and promotion.

[0086] In the embodiments of the present application, for the diagram model file imported into the distribution network master station, the current maintenance status of each feeder is obtained, and it is detected whether the parameters in the diagram model file are correctly associated with those in the database, whether the equipment on the single-line diagram is consistent with the actual operation situation, etc., which can solve problems such as the grid operation risks caused by non-standard diagram model files, incorrect associated parameters, and abnormal acquisition status, and improves the technical problem that the existing diagram model quality verification method does not detect the diagram model after it is imported into the master station and can only find problems when the application runs abnormally, affecting the security of grid operation.

[0087] The embodiments of the present application also provide a distribution network breakpoint diagnosis device based on electrical topology, and the device includes a processor and a memory;

[0088] The memory is used to store program codes and transmit the program codes to the processor;

[0089] The processor is used to execute the distribution network breakpoint diagnosis method based on electrical topology in the foregoing method embodiments according to the instructions in the program codes.

[0090] The embodiments of the present application also provide a computer-readable storage medium, characterized in that the computer-readable storage medium is used to store program codes, and when the program codes are executed by a processor, the distribution network breakpoint diagnosis method based on electrical topology in the foregoing method embodiments is implemented.

[0091] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described system and unit can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0092] In the description of the present application and the above-mentioned accompanying drawings, terms such as "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0093] It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects and indicates that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally means that the associated objects before and after are in an "or" relationship. "At least one (one) of the following" or its similar expression means any combination of these items, including any combination of single item (one) or plural items (ones). For example, at least one (one) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0094] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be in an electrical, mechanical or other form.

[0095] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0096] In addition, in each embodiment of the present application, each functional unit may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit.

[0097] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (English full name: Read-Only Memory, English abbreviation: ROM), random access memories (English full name: Random Access Memory, English abbreviation: RAM), magnetic disks, or optical discs.

[0098] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

Claims

1. A method for diagnosing breakpoint in a distribution network based on electrical topology, characterized in that Including: S1. Determine whether the graphic model file imported into the distribution network master station is normal. If so, execute step S2; S2. Obtain the current hanging tag status of each feeder in the graphic model file. When the hanging tag status is a non-maintenance status, determine the device type of the breakpoint according to the device information in the graphic model file; S3. When the breakpoint is a collection switch, determine whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint. If so, execute step S4; when the breakpoint is a line device, jump to execute step S5; S4. Obtain the switch status of the breakpoint. When the switch status is a closed state, execute step S5; S5. Obtain the connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in the preset database, and determine whether the breakpoint lacks a connection relationship.

2. The method for diagnosing the breakpoint of a distribution network based on an electrical topology according to claim 1, wherein The determination of whether the imported graphic model file is normal includes: According to the import situation log of the graphic model import program, determine whether the model corresponding to each feeder in the imported graphic model file is normal.

3. The method for diagnosing the breakpoint of a distribution network based on an electrical topology according to claim 1, characterized in that The determination of the device type of the breakpoint according to the device information in the graphic model file includes: Match the device information of the breakpoint in the graphic model file with the tie switch information in the interruption ledger, and determine whether the value of the Switch.isRing field in the device information in the graphic model file is true; If so, determine that the breakpoint is a tie switch. If not, obtain the value of the C1216_DEVTYPE field of the breakpoint according to the device ID of the breakpoint; If the value of the C1216_DEVTYPE field of the breakpoint is SW, determine that the breakpoint is a switch device, and check whether the device information in the graphic model file contains the value of the ConductingEquipment.daCommAddress field; If the value of the ConductingEquipment.daCommAddress field is included, determine that the breakpoint is a collection switch.

4. The method for diagnosing breakpoint in a distribution network based on electrical topology according to claim 3, wherein The method further includes: If the value of the C1216_DEVTYPE field of the breakpoint is LN, determine that the breakpoint is a line device.

5. The method for diagnosing the breakpoint of a distribution network based on an electrical topology according to claim 3, wherein The method further includes: When the hanging tag status is a maintenance status, output the result.

6. The method for diagnosing the breakpoint of a distribution network based on an electrical topology according to claim 1, wherein When the breakpoint is a collection switch, the determination of whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint includes: When the breakpoint is a collection switch, obtain the data type of the associated point of the breakpoint; Judge whether the value of the data type contains DI or AI. If so, determine that the parameters associated with the breakpoint are correct. If not, determine that the parameters associated with the breakpoint are incorrect.

7. A distribution network breakpoint diagnosis system based on electrical topology, characterized in that, Including: The first judgment module is used to judge whether the graphic model file imported into the distribution network master station is normal. If so, trigger the first acquisition module; The first acquisition module is used to obtain the current hanging tag status of each feeder in the graphic model file. When the hanging tag status is a non-maintenance status, determine the device type of the breakpoint according to the device information in the graphic model file; A second judgment module, configured to, when the breakpoint is a collection switch, judge whether the parameters associated with the breakpoint are correct according to the data type of the associated point of the breakpoint, and if so, trigger a second acquisition module; when the breakpoint is a line device, trigger a comparison module; The second acquisition module is configured to acquire the switch state of the breakpoint, and when the switch state is a closed state, trigger the comparison module; The comparison module is configured to acquire a connection relationship list according to the device information of the breakpoint, compare the connection relationship list with the connection relationship list in a preset database, and determine whether the breakpoint lacks a connection relationship.

8. The power distribution network breakpoint diagnosis system based on electrical topology according to claim 7, wherein, The first acquisition module is specifically configured to: Acquire the current hanging plate state of each feeder in the graph model file. When the hanging plate state is a non-maintenance state, match the device information of the breakpoint in the graph model file with the tie switch information in the interruption ledger, and judge whether the value of the Switch.isRing field in the device information in the graph model file is true; If so, determine that the breakpoint is a tie switch. If not, obtain the value of the C1216_DEVTYPE field of the breakpoint according to the device ID of the breakpoint; If the value of the C1216_DEVTYPE field of the breakpoint is SW, determine that the breakpoint is a switch device, and check whether the device information in the graph model file contains the value of the ConductingEquipment.daCommAddress field; If the value of the ConductingEquipment.daCommAddress field is included, determine that the breakpoint is a collection switch.

9. A distribution network breakpoint diagnosis device based on electrical topology, characterized in that The device includes a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the method for diagnosing a distribution network breakpoint based on electrical topology according to any one of claims 1-6 according to the instructions in the program code.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store program code, and when the program code is executed by a processor, the method for diagnosing a distribution network breakpoint based on electrical topology according to any one of claims 1-6 is implemented.

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