A power distribution network user boundary switch intelligent carding method based on dynamic topology analysis

Abstract

This invention relates to an intelligent sorting method for user boundary switches in distribution networks based on dynamic topology analysis, comprising: generating a distribution line topology based on real-time data; locating and marking key user-specific transformer nodes in the topology model; starting from the marked user-specific transformer node, tracing along the topology path to the system power supply side to find the first distribution switch that meets the technical conditions; determining whether the located switch meets the standard configuration requirements for user boundary switches; generating standardized verification conclusions for the corresponding user-specific transformer nodes based on the judgment results; traversing all marked user-specific transformer nodes and obtaining the corresponding standardized verification conclusions; and generating a list of key user-specific transformers without boundary switches based on the traversal results. This method can automatically and accurately complete the verification of the configuration of user boundary switches for specific transformers, identify nodes that are not configured in accordance with regulations, assist technicians in efficiently generating negative lists for construction and renovation, and improve the safe operation level and lean management capabilities of the distribution network.

Description

Technical Field

[0001] This invention belongs to the field of power distribution automation technology, specifically relating to an intelligent management method for user boundary switches in a power distribution network based on dynamic topology analysis. Background Technology

[0002] With the continuous expansion of the power distribution network and the increasing number of dedicated transformers for users, the clear demarcation and reliable isolation of ownership boundaries in the power distribution system have become crucial for ensuring the safe and stable operation of the power grid and clarifying operation and maintenance responsibilities. As distributed power sources, electric vehicle charging facilities, and other types of loads are widely integrated, the complexity of power consumption on the user side has significantly increased, leading to a rising failure rate. If dedicated boundary switches are not installed in a standardized manner, an internal fault on the user side can easily trigger a cascading trip on the grid side, resulting in an expanded fault area and power outages for non-faulty users.

[0003] Furthermore, facing a massive number of dedicated transformers for users, traditional manual verification methods rely on maintenance personnel to check drawings and on-site equipment one by one. This makes it difficult to systematically and efficiently complete a comprehensive review of the configuration of boundary switches, and is prone to omissions or misjudgments. Current technology lacks an intelligent means to automatically identify distribution line topology, accurately locate user boundary switches, and verify their configuration compliance. Therefore, there is an urgent need to introduce intelligent technology to assist maintenance personnel in automatically identifying non-standard configuration nodes and efficiently generating an accurate negative list for construction and renovation, thereby promoting the improvement of distribution network operation and maintenance towards refinement and proactivity. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an intelligent sorting method for distribution network user boundary switches based on dynamic topology analysis. This invention can automatically and accurately complete the verification of the configuration of dedicated transformer user boundary switches, identify nodes that are not configured in a standardized manner, assist technicians in efficiently generating negative lists for construction and renovation, and improve the safe operation level and lean management capabilities of the distribution network.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a method for intelligent management of distribution network user boundary switches based on dynamic topology analysis, comprising the following steps:

[0006] Step S1: Constructing a topology model: In the power distribution master station system, the power distribution line topology is generated based on real-time data to represent the logical connections and upstream and downstream relationships between various power distribution devices;

[0007] Step S2: Mark user nodes: In the topology model, locate and mark key user dedicated transformer nodes;

[0008] Step S3, Locating the associated switch: Starting from the marked user-dedicated transformer node, trace along the topology path to the system power supply side until the first distribution switch that meets the technical conditions is found, which will serve as the candidate boundary switch;

[0009] Step S4: Verify configuration compliance: Determine whether the candidate boundary switch located in step S3 meets the user's specification configuration requirements for boundary switches;

[0010] Step S5: Generate standardized conclusions: Based on the judgment results of step S4, generate standardized verification conclusions for the corresponding user-specific transformer nodes;

[0011] Traverse all marked user-specific variable nodes, repeat steps S3-S5, and obtain the standardized verification conclusion of all marked user-specific variable nodes as the traversal result;

[0012] Step S6: Generate a negative list: Based on the traversal results, generate a list of critical user transformers that are not configured with boundary switches.

[0013] Furthermore, in step S2, the key user transformer includes one or more of the following: high-capacity users, users with frequent failures, and users connected to distributed power sources.

[0014] Furthermore, in step S3, the power supply side points in the direction of the high-voltage substation.

[0015] Furthermore, in step S3, the power distribution switch that meets the technical requirements is a power distribution switch with "three remote" functions; the "three remote" functions include remote signaling, remote measurement and remote control functions.

[0016] Furthermore, in step S4, the specified configuration requirements include location requirements, downstream transformer characteristic requirements, and downstream transformer quantity requirements;

[0017] The location requirement is that the switch is not located on the main line;

[0018] The downstream distribution transformer requirement is that no public transformer should be connected downstream of the user's boundary switch;

[0019] The requirement for the number of downstream distribution transformers is as follows: the number of dedicated user transformers connected downstream of the user boundary switch is subject to an upper limit.

[0020] Furthermore, the main line refers to the line from the outgoing switch of the distribution line to each tie switch; if there are multiple tie switches in the distribution line, then the line includes multiple main lines.

[0021] Furthermore, in step S5, if the candidate boundary switch meets the user's specification configuration requirements for boundary switches, the standardized verification conclusion "configured as required" is output; otherwise, the standardized verification conclusion "not configured as required" is output.

[0022] This invention also provides an intelligent management system for distribution network user boundary switches based on dynamic topology analysis, used to implement the above method, including:

[0023] The topology building module is used to generate power distribution line topologies in the power distribution master station system;

[0024] The node marking module is used to locate and mark key user-specific transformer nodes;

[0025] The switch positioning module is used to trace the first distribution switch that meets the technical requirements along the topology path as a candidate boundary switch;

[0026] The compliance verification module is used to determine whether the candidate boundary switches meet the user's specification configuration requirements for boundary switches;

[0027] The conclusion generation module is used to generate standardized verification conclusions for all key user-specific transformer nodes;

[0028] The list generation module is used to generate a list of critical user-specific transformers that are not configured with boundary switches.

[0029] The present invention also provides a computer device, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory, which implement the above-described method when executed by the processor.

[0030] The present invention also provides a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the above-described method.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1) Intelligent topology analysis strategy: Unlike traditional manual verification methods, this invention innovatively proposes an intelligent sorting strategy based on dynamic topology analysis, which can automatically identify the line topology and upstream and downstream relationships, accurately trace back to the first associated switch that meets the technical conditions, and avoid misjudging non-remote control switches or main switches, significantly improving the accuracy and efficiency of verification.

[0033] 2) Compatible with multiple types of critical users: This invention has a high degree of scenario adaptability. Through the marking mechanism, it can accurately cover and be compatible with multiple types of critical users, including high-capacity users, users with frequent failures, and users connected to distributed power sources. This ensures that user nodes with different risk characteristics and importance can be included in the scope of verification, thereby improving the universality of the strategy and the level of management refinement.

[0034] 3) Balancing economy and flexibility: Under the premise of ensuring isolation and control effects, this invention allows multiple user-dedicated transformers to be connected downstream of one user sectionalizing switch (within the upper limit of the number). This breaks through the rigid configuration mode of "1 dedicated transformer 1 switch" in the traditional way. While meeting safety standards, it significantly reduces the number of required switching equipment, optimizes the investment structure, and balances economy and practicality. Attached Figure Description

[0035] Figure 1 This is a flowchart of the intelligent management method for distribution network user boundary switches based on dynamic topology analysis provided in an embodiment of the present invention;

[0036] Figure 2 This is an example diagram of a power distribution line topology containing a dedicated transformer for a key user, as described in this invention. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] like Figure 1 As shown in the figure, this embodiment provides a method for intelligent management of distribution network user boundary switches based on dynamic topology analysis, and its implementation steps are as follows.

[0041] Step S1: Constructing a topology model: In the power distribution master station system, the power distribution line topology is generated based on real-time data to represent the logical connections and upstream and downstream relationships between various power distribution devices.

[0042] Step S2: Mark user nodes: In the topology model, locate and mark the key user dedicated transformer (dedicated transformer) nodes.

[0043] Among them, key user dedicated transformers include one or more of the following: high-capacity users, users with frequent failures, and users connected to distributed power sources.

[0044] Step S3: Locate the associated switch: Starting from the marked user-dedicated transformer node, trace along the topology path to the system power supply side until the first distribution switch that meets the technical conditions is found, which will serve as the candidate boundary switch.

[0045] The power supply side points in the direction of the high-voltage substation.

[0046] A distribution switch that meets the technical requirements is a distribution switch with "three remote" functions. The "three remote" functions include remote signaling, remote measurement, and remote control functions.

[0047] Step S4: Verify configuration compliance: Determine whether the candidate boundary switch located in step S3 meets the user's specification configuration requirements for boundary switches.

[0048] The standard configuration requirements include location requirements, downstream transformer characteristics requirements, and downstream transformer quantity requirements.

[0049] The location requirement is that the switch cannot be located on the main line. The main line refers to the line from the outgoing switch of the distribution line to each tie switch; if there are multiple tie switches in the distribution line, then the line includes multiple main lines.

[0050] The downstream distribution transformer requirements are as follows: a public transformer (public transformer) shall not be connected downstream of the user's boundary switch.

[0051] The requirement for the number of downstream distribution transformers is as follows: the user boundary switch can control multiple user-dedicated transformers, but the number of user-dedicated transformers connected downstream of the user boundary switch should be subject to an upper limit.

[0052] Step S5: Generate standardized conclusions: Based on the judgment results of step S4, generate standardized verification conclusions for the corresponding user-specific transformer nodes. If the candidate boundary switch meets the standard configuration requirements for user boundary switches, output the standardized verification conclusion "configured as required"; otherwise, output the standardized verification conclusion "not configured as required".

[0053] Traverse all marked user-specific variable nodes, repeat steps S3-S5, and obtain the standardized verification conclusions of all marked user-specific variable nodes as the traversal result.

[0054] Step S6: Generate a negative list: Based on the traversal results, generate a list of critical user transformers that are not configured with boundary switches.

[0055] Figure 2 This is the power distribution line topology diagram containing the dedicated transformer for key users in this embodiment. For example... Figure 2As shown, the feeder line has 3 public transformers, 7 dedicated transformers, 6 remote control switches, and 1 non-remote control switch. Specifically, transformer #1 is for hydropower users, transformer #2 is for high-capacity users, transformer #4 is for users with frequent faults, and transformer #7 is for photovoltaic users. It is required that no more than 3 dedicated transformers be connected downstream of each user's boundary switch.

[0056] Step S1: Constructing a topology model: In the power distribution master station system, the power distribution line topology is generated based on real-time data to represent the logical connections and upstream and downstream relationships between various power distribution devices.

[0057] Step S2: Mark user nodes: Mark 1#, 2#, 4# and 7# special transformers as key special transformers in the topology model.

[0058] Step S3-1, Locate the associated switch: Starting from transformer #1, trace along the topology path to the system power supply side to find the first switch K1 with "three remote" functions.

[0059] Step S4-1, Verify configuration compliance: Determine that the remote control switch K1 is located on the main line and does not meet the configuration requirements.

[0060] Step S5-1: Generate standardized conclusion: Output that the No. 1 special transformer is not configured with a boundary switch as required.

[0061] If not all key user configuration variables are traversed, repeat steps S3-S5.

[0062] Step S3-2, Locate the associated switch: Starting from the No. 2 dedicated transformer, trace along the topology path to the system power supply side to find the first switch K4 with "three remote" functions.

[0063] Step S4-2, Verify Configuration Compliance: Determine that the remote control switch K4 is not located on the main line, and that no public transformer is connected downstream of it. There is only one user-dedicated transformer downstream, which meets the standard configuration requirements.

[0064] Step S5-2: Generate standardized conclusion: Output that the No. 2 special transformer has been configured with the boundary switch as required.

[0065] If not all key user configuration variables are traversed, repeat steps S3-S5.

[0066] Step S3-3, Locate the associated switch: Starting from the 4# dedicated transformer, trace along the topology path to the system power supply side to find the first switch K5 with "three remote" functions.

[0067] Step S4-3, Verify Configuration Compliance: Determine that the remote control switch K4 is not located on the main line, and that no public transformer is connected downstream of it. There are only 3 user-dedicated transformers downstream, which meets the standard configuration requirements.

[0068] Step S5-3: Generate standardized conclusion: Output that the No. 4 special transformer has been configured with the boundary switch as required.

[0069] If not all key user configuration variables are traversed, repeat steps S3-S5.

[0070] Step S3-4, Locate the associated switch: Starting from the No. 7 dedicated transformer, trace along the topology path to the system power supply side to find the first switch K6 with "three remote" functions.

[0071] Step S4-4, Verify configuration compliance: It is determined that the downstream connection of the three-remote switch K6 to the No. 3 public transformer does not meet the specification configuration requirements.

[0072] Step S5-4: Generate standardized conclusion: Output: The No. 4 special transformer was not configured with a boundary switch as required.

[0073] Step S6: Generate a negative list: Dedicated transformers #1 and #7 are not configured with boundary switches as required.

[0074] This embodiment also provides an intelligent sorting system for distribution network user boundary switches based on dynamic topology analysis, used to implement the above method, including: a topology construction module, a node marking module, a switch positioning module, a compliance verification module, a conclusion generation module, and a list generation module.

[0075] The topology building module is used to generate power distribution line topologies in the power distribution master station system.

[0076] The node marking module is used to locate and mark key user transformer nodes.

[0077] The switch positioning module is used to trace along the topological path the first distribution switch that meets the technical requirements as a candidate boundary switch.

[0078] The compliance verification module is used to determine whether the candidate boundary switch meets the user's specification configuration requirements for boundary switches.

[0079] The conclusion generation module is used to generate standardized verification conclusions for all key user-specific transformer nodes.

[0080] The list generation module is used to generate a list of critical user-specific transformers that are not configured with boundary switches.

[0081] This embodiment also provides a computer device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which implement the above-described method when executed by the processor.

[0082] This embodiment also provides a computer-readable storage medium storing computer program instructions that, when executed by a processor, implement the above-described method.

[0083] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0084] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0085] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0086] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A method for intelligent management of user boundary switches in a distribution network based on dynamic topology analysis, characterized in that, Includes the following steps: Step S1: Constructing a topology model: In the power distribution master station system, the power distribution line topology is generated based on real-time data to represent the logical connections and upstream and downstream relationships between various power distribution devices; Step S2: Mark user nodes: In the topology model, locate and mark key user dedicated transformer nodes; Step S3, Locating the associated switch: Starting from the marked user-dedicated transformer node, trace along the topology path to the system power supply side until the first distribution switch that meets the technical conditions is found, which will serve as the candidate boundary switch; Step S4: Verify configuration compliance: Determine whether the candidate boundary switch located in step S3 meets the user's specification configuration requirements for boundary switches; Step S5: Generate standardized conclusions: Based on the judgment results of step S4, generate standardized verification conclusions for the corresponding user-specific transformer nodes; Traverse all marked user-specific variable nodes, repeat steps S3-S5, and obtain the standardized verification conclusion of all marked user-specific variable nodes as the traversal result; Step S6: Generate a negative list: Based on the traversal results, generate a list of critical user transformers that are not configured with boundary switches.

2. The intelligent management method for distribution network user boundary switches based on dynamic topology analysis according to claim 1, characterized in that, In step S2, the key user transformer includes one or more of the following: high-capacity users, users with frequent failures, and users connected to distributed power sources.

3. The intelligent management method for distribution network user boundary switches based on dynamic topology analysis according to claim 1, characterized in that, In step S3, the power supply side points in the direction of the high-voltage substation.

4. The intelligent management method for distribution network user boundary switches based on dynamic topology analysis according to claim 1, characterized in that, In step S3, the power distribution switch that meets the technical requirements is a power distribution switch with "three remote" functions; the "three remote" functions include remote signaling, remote measurement and remote control functions.

5. The intelligent management method for distribution network user boundary switches based on dynamic topology analysis according to claim 1, characterized in that, In step S4, the specified configuration requirements include location requirements, downstream transformer characteristics requirements, and downstream transformer quantity requirements; The location requirement is that the switch is not located on the main line; The downstream distribution transformer requirement is that no public transformer should be connected downstream of the user's boundary switch; The requirement for the number of downstream distribution transformers is as follows: the number of dedicated user transformers connected downstream of the user boundary switch is subject to an upper limit.

6. The intelligent management method for distribution network user boundary switches based on dynamic topology analysis according to claim 5, characterized in that, The main line refers to the line from the outgoing switch of the distribution line to each tie switch; if there are multiple tie switches in the distribution line, then the line includes multiple main lines.

7. The intelligent management method for distribution network user boundary switches based on dynamic topology analysis according to claim 5, characterized in that, In step S5, if the candidate boundary switch meets the user's specification configuration requirements for boundary switches, the standardized verification conclusion "configured as required" is output; otherwise, the standardized verification conclusion "not configured as required" is output.

8. A distribution network user boundary switch intelligent management system based on dynamic topology analysis, used to implement the method described in any one of claims 1-7, characterized in that, include: The topology building module is used to generate power distribution line topologies in the power distribution master station system; The node marking module is used to locate and mark key user-specific transformer nodes; The switch positioning module is used to trace the first distribution switch that meets the technical requirements along the topology path as a candidate boundary switch; The compliance verification module is used to determine whether the candidate boundary switches meet the user's specification configuration requirements for boundary switches; The conclusion generation module is used to generate standardized verification conclusions for all key user-specific transformer nodes; The list generation module is used to generate a list of critical user-specific transformers that are not configured with boundary switches.

9. A computer device, characterized in that, include: At least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method as described in any one of claims 1-7.

10. A computer-readable storage medium having computer program instructions stored thereon, characterized in that, When the computer program instructions are executed by a processor, the method described in any one of claims 1-7 is implemented.

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