A method, device and medium for generating a connection diagram of regional lines in a distribution network

Abstract

The present invention discloses a method, device and medium for generating a connection diagram of distribution network regional lines. The steps of the method include: obtaining device information of a specified feeder in the distribution network, topological relationship data between devices, and real-time status information of each switch; finding devices belonging to different feeders, generating connection relationships between devices of different feeders, and forming a set of regional connection relationships; generating a topological description file according to the device information and connection relationships between devices in the set of regional connection relationships; layering the devices according to the topological description file, and performing topological tracing on each device in each layer to generate connection relationships between devices of different feeders, obtaining a set of regional line connection relationships at different levels; finding devices to be displayed from the set of regional line connection relationships at each level, and generating a final regional line connection diagram. The present invention has the advantages of simple implementation method, high generation efficiency and accuracy, and strong information intuitiveness.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution network dispatching, and in particular, to a method, device, and medium for generating a connection diagram of regional lines in a distribution network. Background Art

[0002] During the distribution network dispatching process, in the prior art, dispatchers usually analyze the grid connection status based on the single-line connection diagram of 10 kV lines and then make decisions. When an accident or abnormality occurs in the grid, dispatchers need to quickly and accurately master the real-time status of the grid to formulate effective countermeasures.

[0003] However, the single-line connection diagram can only display the basic grid structure and connection relationship of a single line, and it cannot comprehensively display the topological structure of the grid. For example, it cannot intuitively reflect the topological structure of the opposite line that has a connection relationship with the line. Especially when facing multi-connected lines and complex grid structures, the single-line diagram cannot provide the complex connection relationships between multi-connected lines and complex grid structures, resulting in dispatchers needing to repeatedly consult multiple different systems for comparison and association of connection relationships. This will not only lead to low efficiency and slow dispatching response speed, but also increase the risk of decision-making errors, and it is difficult to meet the current requirements for grid dispatching and power supply reliability. Summary of the Invention

[0004] The technical problem to be solved by the present invention lies in: aiming at the technical problems existing in the prior art, the present invention provides a method, device, and medium for generating a connection diagram of regional lines in a distribution network with a simple implementation method, high generation efficiency and accuracy, and strong information intuitiveness, which can quickly generate a connection diagram of multi-connected lines or a complex grid structure, thereby improving the decision-making accuracy and response speed of dispatching.

[0005] To solve the above technical problems, the technical solution proposed by the present invention is:

[0006] A method for generating a connection diagram of regional lines in a distribution network, the steps including:

[0007] Obtain all device information, topological relationship data between devices, and real-time status information of each switch of a feeder with a specified voltage level in the distribution network;

[0008] Find out the devices belonging to different feeders according to the topological relationship data between the devices, perform topological tracing on the devices belonging to different feeders to generate the connection relationship between the devices of different feeders, and construct a regional connection relationship set;

[0009] Generate a topological description file of the regional connection diagram according to the device information and the connection relationship between the devices in the regional connection relationship set;

[0010] The topology description file of the regional communication diagram is layered according to device type, and topological tracing is performed on each device in each layer to generate the communication relationship between the devices of the feeder, thereby obtaining a set of regional line communication relationships at different levels, wherein each layer includes multiple types of devices, and the next layer includes information of the devices in the previous layer and additional devices of a specified type;

[0011] The devices to be displayed and the device sets on the corresponding power paths are found from the regional line connection relationship sets at each level to generate the final regional line connection diagram.

[0012] Furthermore, the device information includes a device ID number and device attributes, and the device attributes include any one or more of the device's on / off status, type, capacity, location, and whether it contains information about important users.

[0013] Furthermore, the topological relationship data between the devices is represented based on a graph theory, wherein an edge is used to connect two devices to represent an electrical connection between the two devices.

[0014] Furthermore, by Triggering the use of a preset automatic data update function to update the real-time status of each switch to obtain the real-time status information of the switch.

[0015] Furthermore, it also includes searching for dual-power users and searching for devices corresponding to both sides of the dual-power users, adding the contact relationship between the found devices and the dual-power users to the regional contact relationship set, and the dual-power user is a single user associated with two independent user numbers.

[0016] Furthermore, the generated regional line connection diagram includes four layers, wherein the equipment on the first layer includes outgoing circuit breakers and connecting switches, the equipment on the second layer includes the equipment on the first layer and self-connected switches and designated users, the equipment on the third layer includes the equipment on the second layer and non-self-connected switches, and the equipment on the fourth layer includes the equipment on the third layer and dual-power users, wherein the dual-power users are single users associated with two independent user numbers.

[0017] Furthermore, the topology description file of the regional contact map is layered according to device type, and topology tracing is performed on each device in each layer to generate the contact relationship between the devices of the feeder lines, and the regional line contact relationship sets of different levels are obtained, including:

[0018] Acquire first-layer device information according to the topology description file of the regional contact map, and perform topology tracing on each device in the first layer to regenerate the contact relationship between the devices in the feeder lines, thereby forming a first-layer regional contact relationship set;

[0019] Add device types of specified categories on the basis of the upper-layer devices to form the devices of the second layer, and perform topological tracking on each device of the second layer to regenerate the connection relationship between the devices among the feeders, so as to form the lower-layer area connection relationship set.

[0020] Further, finding out the devices to be displayed and the set of devices on the corresponding power supply path from the area line connection relationship sets of each layer, and generating the final area line connection diagram includes:

[0021] Find out the devices to be displayed in each layer of the area line connection diagram, and find the set of devices on the power supply path of the devices to be displayed through topology;

[0022] Merge the devices that do not need to be displayed on the power supply path, and generate virtual line devices for connection according to the coordinates of the merged devices;

[0023] Render the devices to be displayed and the newly generated virtual line devices to generate the final area line connection diagrams of different layers.

[0024] A computer device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to execute the computer program to execute the method as described above.

[0025] A computer-readable storage medium storing a computer program, where the computer program, when executed by a processor, implements the method as described above.

[0026] Compared with the prior art, the advantages of the present invention are as follows: The present invention can automatically generate a complete set of area line connection diagrams for specified feeders, which can not only reflect the grid structure and connection relationship of the specified lines, but also intuitively reflect the topological structure of the opposite lines that have connection relationships with the specified lines. Moreover, by adopting a hierarchical method, area line connection diagrams of different layers can be obtained, and at the same time, the hierarchical method can also reduce the complexity of the connection relationship, thereby facilitating the improvement of the response speed and accuracy of the distribution network dispatching. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic flowchart of the implementation process of the method for generating the area line connection diagram of the distribution network in this embodiment.

[0028] Figure 2 It is a schematic diagram of the effect of the first-layer area line connection diagram generated in the specific application embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the effect of the second-layer area line connection diagram generated in the specific application embodiment of the present invention.

[0030] Figure 4It is a schematic diagram showing the effect of the third-layer regional line connection diagram generated in the specific application embodiment of the present invention.

[0031] Figure 5 It is a schematic diagram showing the effect of the fourth-layer regional line connection diagram generated in the specific application embodiment of the present invention. Detailed implementation manners

[0032] The present invention will be further described below in conjunction with the accompanying drawings of the specification and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0033] For ease of understanding, first, the relevant technical background related to the present invention will be introduced exemplarily.

[0034] Distribution network scheduling comprehensively considers various factors such as the physical characteristics of the power grid, load demand, power generation capacity, network loss, and safe and economic operation, monitors and manages the power grid in real time, and takes measures to deal with power grid accidents promptly. Therefore, in order to achieve safe scheduling of the distribution network, it is necessary to analyze the connection state of the power grid in real time. The line connection diagram is a power system diagram used to show the connection relationships between various power equipment and lines in the power system. The traditional distribution network scheduling method is that the dispatcher obtains the connection state of the power grid based on the line connection diagram and then makes corresponding control decisions. Therefore, the line connection diagram is the key to realizing the safe scheduling of the distribution network. However, in the prior art, the line connection diagrams are all for single lines, that is, single-line diagrams. This type of single-line diagram is only for a specific line and thus only includes the connection relationships of the equipment on that specific line. For example, for a 10 kV line, the dispatcher makes control decisions based on the single-line connection diagram of the 10 kV line. For a distribution network with a complex structure, there may be multiple connected lines. Multiple connected lines mean that there are multiple lines connecting the same or different substations or nodes. Therefore, there will be connection relationships between the equipment on different lines. The single-line diagram can only provide the power grid structure and connection relationship of the current line and cannot intuitively reflect the topological structure of the opposite line that has a connection relationship with the current line. The opposite line is a power line that starts from the current substation or node and connects to another substation or node. Therefore, when scheduling decisions need to be made, the dispatcher needs to manually compare and associate the connection diagrams for different lines to determine the connection relationship between the current line and other lines. The method of manual comparison and association is not only inefficient but also prone to errors, which will lead to problems such as slow scheduling response speed and decision-making mistakes.

[0035] By obtaining the device and topology relationship data of the specified feeder, simultaneously finding the devices belonging to different feeders and performing topology tracking to generate the connection relationship between the devices of different feeders, forming a set of regional connection relationships, and then generating the required topology description file according to the set of regional connection relationships, and further generating the connection relationship between the feeders by layering according to the device type based on the topology description file, obtaining a set of regional line connection relationships at different levels, and finally generating the final regional line connection diagram according to the devices to be displayed, it is possible to automatically generate a complete set of regional line connection diagrams for the specified feeder, improving the speed and accuracy of generating the regional line connection diagram. This diagram can not only reflect the grid structure and connection relationship of the specified line, but also intuitively reflect the topological structure of the opposite line with a connection relationship with the specified line. Moreover, by adopting a layering method, it is possible to obtain line connection diagrams at different levels, and at the same time, the layering method can also reduce the complexity of the connection relationship of each layer, thereby facilitating the improvement of the response speed and accuracy of the distribution network dispatching.

[0036] As Figure 1 shown, the steps of the method for generating the regional line connection diagram of the distribution network in this embodiment include:

[0037] Step S01. Obtain all device information, the topology relationship data between devices, and the real-time status information of each switch of the feeder with the specified voltage level in the distribution network.

[0038] For the target feeder in the distribution network for which the regional line connection diagram needs to be generated, such as a 10kV large feeder, the information of devices such as transformers, circuit breakers, switches, etc. and the topology relationship data between each device can be obtained from the grid resource library. The device information can include the device ID number and device attributes , then the device information can be expressed as , where the device ID number is the identifier corresponding to each device, and the device attributes can include the real-time open / close status , type , capacity , location , whether it includes important users , etc. of the information, that is, it can be expressed as .

[0039] It can be understood that in addition to the device ID number and device attributes, the device information can also adopt other types of device-related information according to actual needs, such as device models, etc. The device attributes can also adopt other types of attribute information except the above attributes, such as power, power consumption, etc.

[0040] Optionally, the topological relationship data between devices can be represented in a graph - theoretic way, using edges E to connect two devices to represent the electrical connection between them. For example, edge can represent a device and a device The connection between them. Furthermore, by combining device information and topological relationships, the information set of the target feeder can be obtained as , where n represents the number of devices, m represents the number of edges.

[0041] Optionally, the switch status values of each device can be read from the distribution automation system, and at the same time, a timing update can be triggered using an update function. For example, at each preset push time point trigger the use of a preset automatic data update function to update the real - time status of each switch , and obtain the real - time status information of the switch, that is , so that the real - time status of the switch can be automatically updated according to changes in data such as topological connections, ensuring the real - time and accuracy of the generated connection diagram.

[0042] Step S02. According to the topological relationship data between devices, find the devices belonging to different feeders, perform topological tracing on the devices belonging to different feeders to generate the connection relationship between the devices of different feeders, and construct a regional connection relationship set.

[0043] There may be multiple feeders of a specified voltage level, and the devices with connection relationships may belong to different feeders. For example, for a 10kV large feeder, there may be multiple 10kV feeders, and there will be a connection relationship between devices of different feeders. According to the topological relationship data between devices, the devices belonging to different feeders can be found, and then topological tracing can be performed on the devices of different feeders respectively to generate the connection relationship between the devices of different feeders, forming a regional connection relationship set. This regional connection relationship set contains the connection relationships between devices of different lines. Topological tracing is to identify the electrical connection relationships between feeders and their connected devices, and obtain the connection relationships between devices of different feeders by using the method of topological tracing, so that the topological structure of the opposite line with a connection relationship to the current line can be quickly obtained, and a more complete topological structure of the power grid can be obtained.

[0044] Optionally, based on the obtained topological relationship data between devices, traverse all edge E relationships in the topological relationship data. When it is judged that device and device When they belong to different 10kV feeders, it is determined that the two devices have a feeder connection relationship. The breadth-first search algorithm BFS is used to perform topological tracking on the two devices to generate a connection relationship between the 10kV large feeders and form a regional connection relationship set.

[0045] Preferably, it is also possible to mark important users that need to be paid attention to so that the information of the important users can be displayed in the generated regional line connection map. For example, obtain the user number of the important user, find the station building to which the transformer corresponding to the user belongs, and mark the station building as "important user". , and the display settings can be made based on this tag.

[0046] Preferably, it is also possible to search for dual power users and the corresponding devices on both sides of the dual power users, and add the contact relationship between the found devices and the dual power users to the regional contact relationship set. The dual power user is a single user associated with two independent user numbers. A table of user number and distribution transformer correspondence will be stored in the distribution automation system or data center. Based on this table, the feeder ownership and topological association relationship can be obtained. If a single user is associated with two independent user numbers, the user is determined to be a dual power user, and the dual power user can be automatically identified. By automatically identifying dual power users, the contact relationship of the dual power user is added to the distribution network regional contact map, so that the relevant information of the dual power user can be easily obtained in the subsequently generated regional line contact map, thereby facilitating the use of this information to formulate relevant transfer strategies and improve the power supply reliability of the power grid to important users.

[0047] Assume that the set of dual power users found is expressed as , for each dual power user, apply the mapping function Find the devices corresponding to both sides of the user 、 , which can be expressed as , then the device 、 The contact relationship with dual power users is added to the regional contact relationship set.

[0048] Step S03: Generate a topology description file of the regional contact graph according to the device information in the regional contact relationship set and the contact relationship between the devices.

[0049] The topology description file is used to record and describe in detail the physical structure and connection relationships of the regional connection diagram to be generated. Specifically, the topology description file includes information about each device (such as transformers, circuit breakers, switches, etc.), topological relationship data between devices, real-time status information of each switch, and connection relationships between devices on different feeders. Using this topology description file, the status of devices in the target feeder and the connection relationships between devices on different feeders can be fully characterized, etc.

[0050] Step S04. Stratify according to the device type based on the topology description file of the regional connection diagram, and perform topological tracing on each device in each layer to generate the connection relationships between devices on different feeders, obtaining a set of regional line connection relationships at different levels, where each layer includes multiple categories of devices, and the lower layer includes the information of the devices in the upper layer and the added specified categories of devices.

[0051] The importance levels of different users in the regional line connection diagram are different, and the attention of the distribution network to different devices and users during the dispatching process is also different. If all devices are directly displayed in the same layer, due to the large number of devices and data volume, it will be difficult to quickly obtain the information of the required devices. In this embodiment, by adopting the method of hierarchical display, all devices are stratified according to the device type, and the information of the specified type of devices and the connection relationships between feeders are displayed in each layer. Among them, only the information of some device types is displayed in the lower layer, and the specified type of devices is added on the basis of the lower layer in the upper layer, forming a gradually refined display method, so that the connection relationships of lines at different levels can be intuitively and quickly obtained. Using the hierarchical display method, not only can the device information of a specific level be conveniently concerned, but also because the lower layer only contains the information of some types of devices, the complexity of the connection relationships can be effectively reduced, thereby improving the readability of the regional connection diagram under different dispatching operation mode adjustments and the efficiency of the dispatcher in formulating transfer strategies.

[0052] For example, the devices on the connection diagram are divided into four layers according to the device type. The devices in the first layer include outgoing line breakers and tie switches. The devices in the second layer include the devices in the first layer, distribution automation switches, and designated users. The designated users can be designated important users, users that need to be monitored with key emphasis, etc. The designated users can be single-power users or dual-power users. The devices in the third layer include the devices in the second layer and non-distribution automation switches. The devices in the fourth layer include the devices in the third layer and dual-power users. A dual-power user is a single user associated with two independent user numbers. Taking the designated user as an important user as an example, the generated regional line connection diagram includes four levels. The first level correspondingly includes: outgoing line breakers, tie switches; the second level correspondingly includes: outgoing line breakers, tie switches, distribution automation switches, important users; the third level correspondingly includes: outgoing line breakers, tie switches, distribution automation switches, non-distribution automation switches, important users; the fourth level correspondingly includes: outgoing line breakers, tie switches, distribution automation switches, non-distribution automation switches, important users, dual-power users.

[0053] It can be understood that the specific number of layers and the specific device types divided in each layer can be configured according to actual needs. The devices that need to be concerned can be divided into specific layers according to different requirements, and the devices that need to be focused on can be divided into lower layers so as to be displayed in the form of a simple diagram.

[0054] As an optional implementation manner, the steps for layering the devices according to the topology description file of the regional connection diagram and performing topology tracing on each device in each layer to generate the connection relationship between the devices among the feeders to obtain the regional line connection diagram specifically include:

[0055] Step S401. Obtain the device information of the first layer according to the topology description file of the regional connection diagram, and perform topology tracing on each device in the first layer to regenerate the connection relationship between the devices among the feeders, forming a set of regional connection relationships of the first layer;

[0056] Step S402. Add device types of a specified category on the basis of the devices in the upper layer to form the devices in the second layer, and perform topology tracing on each device in the second layer to regenerate the connection relationship between the devices among the feeders, forming a set of regional connection relationships of the next layer;

[0057] Step S403. Repeat Step S401 and Step S402 until all sets of regional connection relationships are obtained.

[0058] Taking the example of dividing the devices on the connection diagram into four layers according to the device type, The device type in it is the outgoing circuit breaker, and the tie switch is marked as the first-layer device model set for hierarchical display. The breadth-first search algorithm BFS is used for topological tracing to regenerate the tie relationship between 10kV large feeders, forming the first-layer regional tie relationship set; on the basis of the first-layer device model set, add The device type in it is the distribution automation switch for the second-layer device model set. The breadth-first search algorithm BFS is used for topological tracing to regenerate the tie relationship between 10kV large feeders, forming the second-layer regional tie relationship set; on the basis of the second-layer device model set, add The device type in it is the non-distribution automation switch for the third-layer device model set. The breadth-first search algorithm BFS is used for topological tracing to regenerate the tie relationship between 10kV large feeders, forming the third-layer regional tie relationship set; on the basis of the third-layer device model set, add dual-power users as the fourth-layer device model set. The breadth-first search algorithm BFS is used for topological tracing to regenerate the tie relationship between 10kV large feeders, forming the fourth-layer regional tie relationship set.

[0059] It can be understood that other tracing algorithms other than the breadth-first search algorithm BFS can also be used for topological tracing, such as the boundary tracking algorithm, the vector topological tracing matching algorithm, etc.

[0060] Step S05. Find the devices to be displayed and the device sets on the corresponding power supply paths from the regional line tie relationship sets at each level, and generate the final regional line tie diagram.

[0061] For the regional line tie relationship sets at each level, the devices to be displayed can be screened out for display, so that the device information to be concerned can be hierarchically displayed, and finally the required regional line tie diagram is formed. The regional line tie diagram contains multiple layers, and each layer displays the required device information and the tie relationship between feeders.

[0062] By further hierarchical simplification of each level, the complex tie relationship can be further reduced, and the information of the devices to be concerned can be clearly displayed. As an alternative implementation, the steps of finding the devices to be displayed from the regional line tie relationship sets at each level and generating the final regional line tie diagram include:

[0063] Step S501. Find the devices to be displayed in each layer of the regional line tie diagram, and find the device sets on the power supply paths of the devices to be displayed through topology;

[0064] Step S502. Merge the devices that do not need to be displayed on the power supply paths, and generate virtual line devices for connection according to the coordinates of the merged devices, that is, merge the devices that do not need to be displayed and the line segments between the devices and equivalently represent the connected relationship with connection lines;

[0065] Step S503. Render the devices to be displayed and the newly generated virtual line devices to generate a final area line connection diagram with different levels.

[0066] The devices to be displayed in each of the above layers can be important users, dual-power users, or other users that need attention, and can be specifically configured according to actual requirements.

[0067] Optionally, a graphic automatic layout algorithm and components can also be used to optimize the layout typesetting. For example, with the principle that the outgoing line switches are on both sides, horizontal and vertical, and the lines do not cross as much as possible, a simplified area connection diagram with different levels is generated. Finally, the generated area connection diagram is displayed and interacted with by graphic display and interaction components, that is, hierarchical display control of the simplified area connection diagram can be realized.

[0068] The present invention can automatically generate an area line connection diagram according to the connection switches and connection relationships between the feeders of the distribution network, and display it in layers according to the device types, which can intuitively display the topological structures and device states of different levels of power grids. Based on this area line connection diagram, dispatchers can quickly master the real-time states and topological structures of the current line and the opposite line with a connection relationship with the current line, and thus can significantly improve the speed and efficiency of decision-making. Moreover, when dealing with power grid accidents or abnormal situations, it can also adapt to the changing power grid environment and user needs, and has good flexibility and scalability.

[0069] In a specific application embodiment, the effect of the four-level area line connection diagram generated by using the above method of the present invention according to the connection switches and connection relationships between the 10 kV large feeders of a certain distribution network is as Figures 2 to 5 shown, where Figures 2 to 5 respectively correspond to the partial topological structure diagram effects in the first level, the second level, the third level, and the fourth level. Different colors in each figure represent different feeders, the rectangular symbols in the figure represent switches, the double dots represent dual-power users, and the dashed boxes represent belonging to the same switch station or ring main unit. Important users may be single-power users or dual-power users, Figure 2 , Figure 3 the dual-power users in are the designated important dual-power users. It can be seen from Figures 2 to 5 that the connection diagram generated by the present invention can reflect the connection relationships between different feeders. By using a hierarchical method, the information of different types of devices can be displayed level by level, simplifying the complex topological relationships.

[0070] This embodiment further provides a computer device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to execute the computer program to execute the above method.

[0071] It can be understood that the above method of this embodiment can be executed by a single device, such as a computer or a server, etc., or can also be applied to a distributed scenario where multiple devices cooperate with each other to complete. In the case of a distributed scenario, one of the multiple devices can only execute one or more steps of the above method of this embodiment, and the multiple devices interact with each other to complete the above method. The processor can be implemented in ways such as a general-purpose CPU, a microprocessor, an application-specific integrated circuit, or one or more integrated circuits, etc., and is used to execute relevant programs to implement the above method of this embodiment. The memory can be implemented in forms such as a read-only memory ROM, a random access memory RAM, a static storage device, and a dynamic storage device, etc. The memory can store an operating system and other application programs. When implementing the above method of this embodiment through software or firmware, the relevant program codes are stored in the memory and are called and executed by the processor.

[0072] This embodiment further provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above method is implemented.

[0073] Those skilled in the art should understand that the above embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-readable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes. The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, and the combination of processes and / or blocks in the flowchart and / or block diagram, can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks. These computer program instructions can also be stored in a computer-readable memory capable of guiding a computer or other programmable data processing devices to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device realizes the functions in Figure 1 one process or multiple processes and / or blocks Figure 1The functions specified in one or more boxes. These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes and / or boxes Figure 1 One process or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes.

[0074] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. A method for generating a connection diagram of regional lines in a distribution network, which is applicable to distribution network dispatching, is characterized in that The method steps include: Obtain all device information, topological relationship data between devices, and real-time status information of each switch on the feeder of a specified voltage level in the distribution network; Find devices belonging to different feeders according to the topological relationship data between the devices, perform topological tracing on the devices belonging to different feeders to generate the connection relationship between devices between different feeders, and construct a regional connection relationship set; it also includes finding dual-power users, and finding the corresponding devices on both sides of the dual-power users, and adding the connection relationship between the found devices and the dual-power users to the regional connection relationship set, where the dual-power user is a single user associated with two independent user numbers; Generate a topological description file of the regional connection diagram according to the device information and the connection relationship between devices in the regional connection relationship set; Layer according to device type according to the topological description file of the regional connection diagram, and perform topological tracing on each device in each layer to generate the connection relationship between devices between feeders, and obtain regional line connection relationship sets of different levels, where each layer includes multiple categories of devices, and the next layer includes the information of the devices in the previous layer and the added specified categories of devices; Find the devices to be displayed and the set of devices on the corresponding power supply path from the regional line connection relationship sets of each level to generate the final regional line connection diagram; The layer-by-layer according to device type according to the topological description file of the regional connection diagram, and performing topological tracing on each device in each layer to generate the connection relationship between devices between feeders, and obtaining regional line connection relationship sets of different levels includes: Obtain the device information of the first layer according to the topological description file of the regional connection diagram, and perform topological tracing on each device in the first layer to regenerate the connection relationship between devices between feeders, and form the regional connection relationship set of the first layer; Add a specified category of device type on the basis of the devices in the previous layer to form the devices in the next layer, and perform topological tracing on each device in the next layer to regenerate the connection relationship between devices between feeders, and form the regional connection relationship set of the next layer. The devices to be displayed in each layer include dual-power users or users that need attention.

2. The method for generating a line connection diagram of a distribution network area according to claim 1, wherein The device information includes the device ID number and device attributes, and the device attributes include any one or more of the opening and closing status, type, capacity, location, and information on whether it contains important users of the device.

3. The method for generating a distribution network area line connection diagram according to claim 1, wherein, Represent the topological relationship data between the devices in a graph-theory way, where edges are used to connect two devices to represent the electrical connection between the two devices.

4. The method for generating a line connection diagram of a distribution network area according to claim 1, wherein Update the real-time status of each switch by triggering the use of a preset automatic data update function at each preset push time point to obtain the real-time status information of the switch.

5. The method for generating a distribution network area line connection diagram according to any one of claims 1 to 4, characterized in that, The generated regional line connection diagram includes four layers. The devices in the first layer include outgoing line circuit breakers and tie switches. The devices in the second layer include the devices in the first layer and distribution automation switches and specified users. The devices in the third layer include the devices in the second layer and non-distribution automation switches. The devices in the fourth layer include the devices in the third layer and dual-power users, where the dual-power user is a single user associated with two independent user numbers.

6. The method for generating a line connection diagram of a distribution network area according to any one of claims 1 to 4, characterized in that, Finding out the devices to be displayed and the set of devices on the corresponding power path from the set of area line connection relationships at each level, and generating the final area line connection diagram includes: Finding out the devices to be displayed at each layer in the area line connection diagram, and finding the set of devices on the power path of the devices to be displayed through topology; Merging the devices that do not need to be displayed on the power path, and generating virtual line devices for connection according to the coordinates of the merged devices; Rendering the devices to be displayed and the newly generated virtual line devices to generate the final area line connection diagrams at different levels.

7. A computer device, comprising a processor and a memory, the memory being used for storing a computer program, characterized in that, The processor is used to execute the computer program to execute the method described in any one of claims 1 to 6.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, the method described in any one of claims 1 to 6 is implemented.

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