Electrical network topology method, apparatus, computer device and storage medium

Abstract

The application relates to an electrical network topology method, device, computer equipment and storage medium. The method comprises the following steps: establishing a multi-node flat cable according to the number of nodes of a target power grid system; adding a line between the nodes in the multi-node flat cable according to the line parameters between the nodes in the target power grid system, and adding a first switch identifier between each line endpoint and the adjacent node; adding at least one group of architecture connection lines in the multi-node flat cable to obtain a general topology of the target power grid system; each group of architecture connection lines comprises a common node, a connection line branch with a node number and a second switch identifier with a node number; and adjusting the display state of the first switch identifier and the second switch identifier according to a preset topology requirement to obtain a target topology of the target power grid system. The topology supports node number expansion, adjustment and change of architecture control, realization of an arbitrary electrical connection topology, access and switching of equipment at any node, and the topology precision can be improved by using the method.

Description

Technical Field

[0001] This application relates to the field of electrical engineering, and in particular to an electrical network topology method, apparatus, computer equipment, storage medium, and computer program product. Background Technology

[0002] The port characteristics of power electronic devices differ significantly from those of traditional loads. Their port characteristics are complex and highly variable in low-frequency, sub-synchronous / supersynchronous, and high-frequency bands, easily leading to deep dynamic interactions with urban medium-voltage distribution networks and inducing power system coupled oscillations at multiple frequencies. This greatly increases the complexity of urban distribution networks, posing challenges to the safe, reliable, and economical operation of the power grid. These resonance problems are characterized by uncertainty and randomness, are highly stochastic, difficult to detect beforehand, and difficult to reproduce afterward. Therefore, systematic analysis, reproduction, and solutions to these coupled resonance problems are urgently needed. Developing an empirical verification platform and constructing a network architecture platform composed of multiple power electronic devices and complex distribution networks to support laboratory verification of related research has become a key research focus.

[0003] Complex power electronic distribution networks are characterized by complex line impedance structures, intricate network topologies, and a wide and numerous distribution of power electronic equipment, resulting in high complexity and necessitating the establishment of dedicated experimental platforms for dynamic model experiments. Currently, domestic research institutions have conducted detailed analyses and studies on the oscillation phenomena of grid-connected converters in distribution networks. However, the verification of their analytical conclusions has primarily focused on single-converter grid connection or simple multi-machine parallel operation scenarios, without utilizing their research findings to verify the dynamic interaction characteristics of multiple devices in complex distribution networks.

[0004] While the research conclusions of foreign teams have been experimentally verified to some extent, they lack dynamic model experiments under complex distribution network conditions. Their experimental environments are only suitable for single-unit grid connection studies, making it difficult to experimentally verify complex scenarios with multiple converters and multiple lines. The theoretical analysis conclusions are still difficult to apply practically to complex distribution networks with multiple power electronic device interactions, multiple line architectures, and mixed types. Existing grid connection equipment experimental platforms in research are based on providing a fixed grid connection environment for single or multiple devices, and changing the equipment access lines and equipment types to change the experimental environment. They cannot simulate the changes in the connection nodes, time, and states of multiple devices in a real power grid, nor can they provide systematic experimental environment support for the planned switching of various types of experimental equipment in complex distribution networks. When changing the experimental topology, it is often necessary to rewire the primary and secondary lines of the experimental platform, consuming a significant amount of experimental time.

[0005] Currently, experimental topologies for electrical network architectures involve a small number of nodes, have relatively simple topologies, and lack sufficient adjustability, resulting in very limited overall topology accuracy. Summary of the Invention

[0006] Therefore, it is necessary to provide an electrical network topology method, apparatus, computer equipment, computer-readable storage medium, and computer program product that can improve the accuracy of experimental topology for electrical network architecture in response to the above-mentioned technical problems.

[0007] In a first aspect, this application provides an electrical network topology method, including:

[0008] Establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes;

[0009] Based on the line parameters between nodes in the target power grid system, lines are added between nodes in the multi-node wiring, and a first switch identifier is added between each line endpoint and the adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node;

[0010] Add at least one set of architecture connection lines to the multi-node wiring to obtain the general topology of the target power grid system; each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is set at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0011] Based on the preset topology requirements, adjust the display status of the first switch identifier and the second switch identifier to obtain the target topology of the target power grid system.

[0012] In one embodiment, adding lines between nodes in a multi-node wiring configuration based on the line parameters between nodes in the target power grid system includes:

[0013] Based on the line parameters between nodes in the target power grid system, determine the line length between every two adjacent nodes in the multi-node wiring;

[0014] Add lines between nodes in a multi-node cabling system based on the line length between any two adjacent nodes.

[0015] In one embodiment, at least one set of architectural connection lines is added to the multi-node wiring to obtain a general topology of the target power grid system, including:

[0016] Based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system, determine the number of sets of structural connection lines to be added in the multi-node cabling.

[0017] Based on the number of groups, at least one set of architecture connection lines is added to the multi-node wiring, and the display characteristics of the common nodes of each set of architecture connection lines are configured to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding architecture connection lines.

[0018] In one embodiment, the number of sets of structural connecting lines to be added to the multi-node cabling is determined based on the number of power equipment, mesh network line crossings, and reactive power compensation capacitors in the target power grid system, including:

[0019] Based on the number of power devices in the target power grid system, determine the first group number of the first architecture connection lines that need to be added to the multi-node cabling;

[0020] Based on the number of line crossings in the mesh structure of the target power grid system, determine the second group number of second architecture connecting lines that need to be added to the multi-node wiring;

[0021] Based on the number of reactive power compensation capacitors in the target power grid system, determine the number of the third set of third architecture connection lines that need to be added to the multi-node cabling;

[0022] The sum of the first, second, and third sets of numbers yields the number of architecture connection lines that need to be added in the multi-node cabling.

[0023] In one embodiment, based on the number of groups, at least one set of architectural connection lines is added to the multi-node cabling, and the display characteristics of the common nodes of each set of architectural connection lines are configured, including:

[0024] Add the first architecture connection line of the first group in the multi-node cabling, and configure the display characteristics of the common nodes of each group of first architecture connection lines as the component symbols corresponding to the power equipment.

[0025] Add a second group of second architecture connection lines to the multi-node cabling, and configure the display feature of the common node of each group of second architecture connection lines as a circular node.

[0026] Add a third group of third architecture connection lines to the multi-node cabling, and configure the display characteristics of the common nodes of each group of third architecture connection lines as the component symbols corresponding to the reactive power compensation capacitors.

[0027] In one embodiment, adjusting the display states of the first switch identifier and the second switch identifier according to preset topology requirements includes:

[0028] For the lines between nodes in a multi-node cabling system, adjust the display status of the two first power switches connected to both ends of the target node to be open, and adjust the display status of the first power switches connected to both ends of other nodes to be closed; the target node is one or more nodes that divide the entire line.

[0029] For the first architecture connection line and the third architecture connection line, adjust the display state of the second power switch of one connection line branch that needs to be connected to the node to be closed, and adjust the display state of the second power switch of the remaining connection line branches to be open.

[0030] For the second architecture connection line, adjust the display status of the second power switch of the two connection line branches that need to be connected to be closed, and adjust the display status of the second power switch of the remaining connection line branches to open.

[0031] Secondly, this application also provides an electrical network topology device, comprising:

[0032] The node module is used to establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes.

[0033] The line module is used to add lines between nodes in a multi-node wiring scheme based on the line parameters between nodes in the target power grid system, and to add a first switch identifier between each line endpoint and the adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node.

[0034] The connection module is used to add at least one set of architecture connection lines in a multi-node wiring diagram to obtain the general topology of the target power grid system. Each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is located at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0035] The adjustment module is used to adjust the display status of the first switch identifier and the second switch identifier according to the preset topology requirements, so as to obtain the target topology of the target power grid system.

[0036] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0037] Establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes;

[0038] Based on the line parameters between nodes in the target power grid system, lines are added between nodes in the multi-node wiring, and a first switch identifier is added between each line endpoint and the adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node;

[0039] Add at least one set of architecture connection lines to the multi-node wiring to obtain the general topology of the target power grid system; each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is set at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0040] Based on the preset topology requirements, adjust the display status of the first switch identifier and the second switch identifier to obtain the target topology of the target power grid system.

[0041] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0042] Establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes;

[0043] Based on the line parameters between nodes in the target power grid system, lines are added between nodes in the multi-node wiring, and a first switch identifier is added between each line endpoint and the adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node;

[0044] Add at least one set of architecture connection lines to the multi-node wiring to obtain the general topology of the target power grid system; each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is set at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0045] Based on the preset topology requirements, adjust the display status of the first switch identifier and the second switch identifier to obtain the target topology of the target power grid system.

[0046] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0047] Establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes;

[0048] Based on the line parameters between nodes in the target power grid system, lines are added between nodes in the multi-node wiring, and a first switch identifier is added between each line endpoint and the adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node;

[0049] Add at least one set of architecture connection lines to the multi-node wiring to obtain the general topology of the target power grid system; each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is set at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0050] Based on the preset topology requirements, adjust the display status of the first switch identifier and the second switch identifier to obtain the target topology of the target power grid system.

[0051] The aforementioned electrical network topology method, apparatus, computer equipment, storage medium, and computer program product establish a multi-node wiring diagram based on the number of nodes in the target power grid system. The multi-node wiring diagram includes nodes of a specified number. Based on the line parameters between nodes in the target power grid system, lines are added between the nodes in the multi-node wiring diagram, and a first switch identifier is added between each line endpoint and an adjacent node. The first switch identifier has two selectable display states: open and closed, used to control the connection and disconnection of the line and the node. At least one set of architectural connecting lines is added to the multi-node wiring diagram to obtain the general topology of the target power grid system. Each set of architectural connecting lines includes a common node, a number of connecting line branches of a specified number of nodes, and a number of second switch identifiers of a specified number of nodes. The connecting line branches are formed by connecting the common node to each node. The second switch identifier is located at the connection point between the connecting line branch and the node, and has two selectable display states: open and closed, used to control the connection and disconnection of the connecting line branch and the node. Based on preset topology requirements, the display states of the first and second switch identifiers are adjusted to obtain the target topology of the target power grid system. This topology supports expansion of the number of nodes, controlled adjustment and change of the architecture, implementation of arbitrary electrical connection topologies, and access and switching of devices at any node, greatly improving the topology accuracy of the electrical network architecture. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a diagram illustrating the application environment of an electrical network topology method in one embodiment.

[0054] Figure 2 This is a flowchart illustrating an electrical network topology method in one embodiment;

[0055] Figure 3 This is a schematic diagram of a cabling system consisting of n nodes in one embodiment;

[0056] Figure 4 This is a schematic diagram of the connection structure between lines and nodes in one embodiment;

[0057] Figure 5 This is a schematic diagram of the architecture connection line structure and connection relationship in one embodiment;

[0058] Figure 6 This is a schematic diagram illustrating the connection relationship between the device, the reactive power compensation capacitor, and the architecture connection lines in one embodiment.

[0059] Figure 7 This is a schematic diagram illustrating an example of the application of architectural connection lines in one embodiment;

[0060] Figure 8 This is a schematic diagram of a single-machine experimental topology in one embodiment;

[0061] Figure 9 This is a schematic diagram illustrating the implementation of a single-machine experimental topology in one embodiment;

[0062] Figure 10 This is a schematic diagram of an experimental topology for the interaction between an APF / active damper and a harmonic load in one embodiment.

[0063] Figure 11 This is a schematic diagram illustrating the implementation of an experimental topology for the interaction between an APF / active damper and a harmonic load in one embodiment.

[0064] Figure 12 This is a schematic diagram of an experimental topology for parallel interaction between two inverters in one embodiment;

[0065] Figure 13 This is a schematic diagram illustrating the implementation of an experimental topology for parallel interaction of two inverters in one embodiment.

[0066] Figure 14This is a schematic diagram of an experimental topology for the interaction between an APF / active damper and a single inverter in one embodiment.

[0067] Figure 15 This is a schematic diagram illustrating the implementation of an experimental topology for the interaction between an APF / active damper and a single inverter in one embodiment.

[0068] Figure 16 This is a schematic diagram of the interactive experimental topology when two remote inverters are connected to the same PCC point in one embodiment.

[0069] Figure 17 This is a schematic diagram illustrating the implementation of an interactive experimental topology when two remote inverters are connected to the same PCC point in one embodiment.

[0070] Figure 18 This is a schematic diagram of the harmonic / resonance compensation interactive experiment topology of an APF / active damper for two fed inverters in one embodiment.

[0071] Figure 19 This is a schematic diagram illustrating the implementation of an experimental topology for harmonic / resonance compensation of two fed inverters using an APF / active damper in one embodiment.

[0072] Figure 20 This is a schematic diagram of the topology of an IEEE 18-node standard system in one embodiment;

[0073] Figure 21 This is a schematic diagram of the topology implementation of the IEEE 18-node standard system in one embodiment;

[0074] Figure 22 This is a structural block diagram of an electrical network topology device in one embodiment;

[0075] Figure 23 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0077] The electrical network topology method provided in this application can be applied to, for example, Figure 1In the application environment shown, terminal 102 communicates with server 104 via a network. A data storage system can store the data that server 104 needs to process. The data storage system can be integrated onto server 104 or located in the cloud or on other network servers. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, etc. Portable wearable devices can include smartwatches, smart bracelets, head-mounted devices, etc. Server 104 can be implemented using a standalone server or a server cluster consisting of multiple servers.

[0078] In one exemplary embodiment, such as Figure 2 As shown, an electrical network topology method is provided, which can be applied to... Figure 1 Taking terminal 102 as an example, the explanation includes the following steps 202 to 208. Wherein:

[0079] Step 202: Establish a multi-node wiring diagram based on the number of nodes in the target power grid system; the multi-node wiring diagram includes the number of nodes.

[0080] For example, a complex power distribution network system inevitably contains a large number of nodes, with multiple lines connecting them. To achieve flexible adjustment of the multi-node, multi-line architecture, the number of nodes *n* in the complex power distribution network experimental system is first determined, and a multi-node wiring diagram consisting of *n* nodes is established, such as... Figure 3 As shown, these n nodes have the spatial ability to connect multiple devices.

[0081] Step 204: Based on the line parameters between nodes in the target power grid system, add lines between nodes in the multi-node wiring and add a first switch identifier between each line endpoint and the adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node.

[0082] The first switch identifier is used to indicate the power switch between the line and the node.

[0083] Optionally, based on the line parameters between nodes in the target power grid system, determine the line length between every two adjacent nodes in the multi-node wiring; add lines between nodes in the multi-node wiring according to the line length between every two adjacent nodes; and add a first switch identifier between each line endpoint and an adjacent node.

[0084] For example, based on a real complex power distribution network system, the required n-1 line lengths l1, l2...ln-1 between multiple nodes in the complex power distribution network experimental system are determined, and resistive-inductive lines with corresponding line parameters are fabricated. The advantage of using resistors and inductors to simulate equivalent real power lines is that it minimizes the laboratory footprint of the complex power distribution network experimental system while ensuring the scientific validity and accuracy of the experimental results. The n-1 line segments are placed between n nodes, and a power switch (solid-state relay or contactor) is installed between each line endpoint and a node to control the connection and disconnection of the line and the node. Figure 4 As shown in the diagram. The horizontal line segment represents the circuit, and the circles at both ends of the horizontal line segment are the first switch markers, indicating the power switch.

[0085] Step 206: Add at least one set of architecture connection lines to the multi-node wiring to obtain the general topology of the target power grid system; each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is set at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0086] The second switch identifier is used to indicate the power switch between the connecting branch and the node.

[0087] Optionally, based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system, the number of sets of structural connection lines to be added in the multi-node wiring is determined; based on the number of sets, at least one set of structural connection lines is added in the multi-node wiring, and the display characteristics of the common nodes of each set of structural connection lines are configured to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding structural connection lines.

[0088] Specifically, based on the number of power devices in the target power grid system, determine the first group number of first-architecture connecting lines to be added to the multi-node wiring; based on the number of line crossings in the mesh structure of the target power grid system, determine the second group number of second-architecture connecting lines to be added to the multi-node wiring; based on the number of reactive power compensation capacitors in the target power grid system, determine the third group number of third-architecture connecting lines to be added to the multi-node wiring; and by summing the first, second, and third group numbers, obtain the total number of architecture connecting lines to be added to the multi-node wiring.

[0089] Furthermore, a first group of first-architecture connection lines is added to the multi-node wiring, and the display characteristics of the common nodes of each group of first-architecture connection lines are configured as the component symbols corresponding to power equipment; a second group of second-architecture connection lines is added to the multi-node wiring, and the display characteristics of the common nodes of each group of second-architecture connection lines are configured as circular nodes; a third group of third-architecture connection lines is added to the multi-node wiring, and the display characteristics of the common nodes of each group of third-architecture connection lines are configured as the component symbols corresponding to reactive power compensation capacitors. This yields the general topology of the target power grid system.

[0090] For example, the number of devices connected in the complex power distribution network experimental system k1 is determined, the number of existing or planned network structure line crossings in the complex power distribution network system k2 is determined, and the number of reactive power compensation capacitors mounted in the power grid in the complex power distribution network experimental system k3 is determined, and the sum of the above three is taken as the number of architecture connection lines k.

[0091] Set up k groups of architecture connection lines. The structure and connection relationships of each group of architecture connection lines are as follows: Figure 5 As shown. Each group of architectural connections consists of a common node (i.e. Figure 5 The structure consists of a bottom circle and n lines extending from a common node. These n lines are directly connected to the n nodes via power switches. All k sets of interconnecting lines are connected to the n nodes using the same structure.

[0092] Connect the common node in the k1 group architecture connection line to each of the k1 devices that need to be connected. Connect the common node in the k3 group architecture connection line to each of the k3 reactive power compensation capacitors that need to be connected. This completes the connection between the k1 devices and the k3 reactive power compensation capacitors. Figure 6 As shown.

[0093] Step 208: Adjust the display status of the first switch identifier and the second switch identifier according to the preset topology requirements to obtain the target topology of the target power grid system.

[0094] Optionally, for the lines between nodes in a multi-node cabling system, the display status of the two first power switches connected to both ends of the target node is adjusted to be open, and the display status of the first power switches connected to both ends of other nodes is adjusted to be closed; the target node is one or more nodes that divide the entire line; for the first architecture connecting line and the third architecture connecting line, the display status of the second power switch of one connecting line branch of the node to be connected is adjusted to be closed, and the display status of the second power switch of the remaining connecting line branches is adjusted to be open; for the second architecture connecting line, the display status of the second power switches of the two connecting line branches of the node to be connected is adjusted to be closed, and the display status of the second power switches of the remaining connecting line branches is adjusted to be open.

[0095] For example, based on the actual experimental topology requirements, the power switches of the connecting lines and the power switches connected to the lines are adjusted for opening and closing to complete the topology formation and modification of the complex power distribution network experimental system. The switching principles of the power switches are as follows:

[0096] For the power switches at both ends of the line, when multiple nodes need to form a complete line, the power switches at both ends are closed. When the line needs to be split into two lines at a certain node, the two power switches connected to both ends of that node are set to open.

[0097] For the power switches connected to each line on the structural connection line, if the structural connection line is for power equipment or reactive power compensation capacitors, only the power switches on the branch of the structural connection line for the required connection node are closed, and the remaining power switches are left open. If the structural connection line is used for line crossings, the switches on the branch lines of the two nodes to be connected by the structural connection line are closed, and the remaining power switches are left open. A connection diagram for structural connection lines used for line crossings is shown below. Figure 7 As shown in the shaded area. Figure 7 In this example, the wiring between nodes 16-18 is cross-connected to node 5 via an architecture connector. Therefore, only the power switches on nodes 5 and 16 of the architecture connector are closed; all other power switches are set to open.

[0098] In the above electrical network topology method, a multi-node wiring is established based on the number of nodes in the target power grid system. The multi-node wiring includes nodes of a certain number. Based on the line parameters between nodes in the target power grid system, lines are added between nodes in the multi-node wiring, and a first switch identifier is added between each line endpoint and an adjacent node. The first switch identifier has two selectable display states: open and closed, used to control the connection and disconnection of the line and the node. At least one set of architectural connection lines is added to the multi-node wiring to obtain the general topology of the target power grid system. Each set of architectural connection lines includes a common node, a number of connection line branches of a certain number of nodes, and a number of second switch identifiers of a certain number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is set at the connection point between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, used to control the connection and disconnection of the connection line branch and the node. Based on the preset topology requirements, the display states of the first switch identifier and the second switch identifier are adjusted to obtain the target topology of the target power grid system. This topology supports expansion of the number of nodes, controlled adjustment and change of the architecture, implementation of arbitrary electrical connection topologies, and access and switching of devices at any node, greatly improving the topology accuracy of the electrical network architecture.

[0099] In one embodiment, an electrical network topology method includes:

[0100] Establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes.

[0101] Based on the line parameters between nodes in the target power grid system, determine the line length between every two adjacent nodes in the multi-node wiring; based on the line length between every two adjacent nodes, add lines between nodes in the multi-node wiring, and add a first switch identifier between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node.

[0102] Based on the number of electrical devices in the target power grid system, determine the first group number of first-architecture connecting lines to be added to the multi-node wiring; based on the number of line crossings in the mesh structure of the target power grid system, determine the second group number of second-architecture connecting lines to be added to the multi-node wiring; based on the number of reactive power compensation capacitors in the target power grid system, determine the third group number of third-architecture connecting lines to be added to the multi-node wiring; sum the first, second, and third group numbers to obtain the total number of architecture connecting lines to be added to the multi-node wiring.

[0103] In a multi-node wiring diagram, a first set of first-architecture connection lines is added, and the display characteristics of the common nodes of each set of first-architecture connection lines are configured as the component symbols corresponding to power equipment. In the same diagram, a second set of second-architecture connection lines is added, and the display characteristics of the common nodes of each set of second-architecture connection lines are configured as circular nodes. In the same diagram, a third set of third-architecture connection lines is added, and the display characteristics of the common nodes of each set of third-architecture connection lines are configured as the component symbols corresponding to reactive power compensation capacitors. This yields the general topology of the target power grid system. Each set of connection lines includes a common node, a number of connection line branches, and a number of second switch identifiers. Connection line branches are formed by connecting the common node to each node. The second switch identifier is located at the connection point between the connection line branch and the node, and has two selectable display states: open and closed, used to control the connection and disconnection between the connection line branch and the node.

[0104] For the lines between nodes in a multi-node wiring configuration, the display status of the two first power switches connected to both ends of the target node is adjusted to open, while the display status of the first power switches connected to both ends of other nodes is adjusted to closed. The target node is one or more nodes that divide the entire line. For the first-architecture connecting lines and the third-architecture connecting lines, the display status of the second power switch of one connecting line branch of the node to be connected is adjusted to closed, while the display status of the second power switch of the remaining connecting line branches is adjusted to open. For the second-architecture connecting lines, the display status of the second power switches of the two connecting line branches of the node to be connected is adjusted to closed, while the display status of the second power switches of the remaining connecting line branches is adjusted to open. The target topology of the target power grid system is thus obtained.

[0105] This embodiment proposes a multi-node power distribution network architecture with flexible adjustable structure and node connection relationships. This topology supports node expansion, controlled adjustment and modification of the architecture, implementation of arbitrary electrical connection topologies, and device access and switching at any node. Simultaneously, this multi-node network structure supports automated control, allowing for automated configuration of the architecture using a host computer. This enables automated and planned switching between different power distribution network architectures and connection conditions, providing network architecture support for experiments on complex power distribution network multi-device connection conditions and for studying device characteristics under changing network environments and device connection relationships.

[0106] In one exemplary embodiment, to demonstrate that the present invention can cover the characteristics of existing experimental architectures, the following is described: Figure 8 , 10 The architecture implementation of all existing single-machine and multi-machine inverter experimental topologies, such as 12, 14, 16, and 18, is demonstrated. Figure 9 , 11 As shown in figures 13, 15, 17, and 19, the connection status is indicated by bold lines.

[0107] When conducting experiments on power electronic converter grids in the laboratory, whether it is a single-machine experiment or a multi-machine experiment, the vast majority of them follow the following structure:

[0108] Single-machine experimental topology as follows Figure 8 As shown, a single inverter is connected to the grid via a manually configured grid impedance. For Figure 8 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 9 As shown.

[0109] When it comes to the characteristic compensation of harmonic loads by active power filters (APF), or the monitoring of the damping effect of active dampers on harmonic resonances, or the interaction of parameters of the above two, the system structure consisting of APF / active damper and harmonic load is as follows: Figure 10 As shown. For Figure 10 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 11 As shown.

[0110] When two inverters are connected in parallel, the experimental topology is as follows: Figure 12 As shown. For Figure 12 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 13 As shown.

[0111] When conducting characteristic compensation or interaction experiments involving APF / active dampers and single inverters, the experimental topology composed of the above two components is as follows: Figure 14 As shown. For Figure 14 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 15 As shown.

[0112] When two remote inverters are each connected to the same PCC point via feeders, and thus resonate with each other, the experimental topology formed by the two is as follows: Figure 16 As shown. For Figure 16 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 17 As shown.

[0113] When using an APF / active damper to compensate for the cross-harmonics or resonances between two remote inverters, the above experimental topology is as follows: Figure 18 As shown. For Figure 18 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 19 As shown.

[0114] In addition, to illustrate that this invention can achieve arbitrary nodes and topologies, the IEEE 18-node standard system is used as an example, employing an electrical network topology method to highlight the flexible and adjustable multi-node characteristics of this architecture. The IEEE 18-node standard system topology is as follows: Figure 20 As shown. For Figure 20 When the topology shown is implemented using the electrical network topology method, the resulting structural topology is as follows: Figure 21 As shown, the IEEE 18-node standard system has four line crossings, meaning the number of k2 lines is four. Therefore, in the final implementation of this architecture, four sets of connection lines were used, thus achieving the architecture of this topology. This demonstrates that the electrical network topology method possesses the feasibility of implementing any architecture, allowing for the standardized configuration of any complex distribution network experimental environment.

[0115] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0116] Based on the same inventive concept, this application also provides an electrical network topology apparatus for implementing the electrical network topology method described above. The solution provided by this apparatus is similar to the implementation scheme described in the above method; therefore, the specific limitations in one or more electrical network topology apparatus embodiments provided below can be found in the limitations of the electrical network topology method described above, and will not be repeated here.

[0117] In one exemplary embodiment, such as Figure 22 As shown, an electrical network topology device 2200 is provided, including: a node module 2201, a line module 2202, a connection module 2203, and an adjustment module 2204, wherein:

[0118] Node module 2201 is used to establish a multi-node wiring according to the number of nodes in the target power grid system; the multi-node wiring includes the number of nodes.

[0119] Line module 2202 is used to add lines between nodes in a multi-node wiring scheme according to the line parameters between nodes in the target power grid system, and to add a first switch identifier between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node.

[0120] The connection module 2203 is used to add at least one set of architecture connection lines in a multi-node wiring diagram to obtain a general topology of the target power grid system. Each set of architecture connection lines includes a common node, a number of connection line branches with a number of nodes, and a second switch identifier for the number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is located at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node.

[0121] The adjustment module 2204 is used to adjust the display status of the first switch identifier and the second switch identifier according to the preset topology requirements, so as to obtain the target topology of the target power grid system.

[0122] In one embodiment, the line module 2202 is further configured to determine the line length between every two adjacent nodes in the multi-node wiring according to the line parameters between nodes in the target power grid system; and to add lines between nodes in the multi-node wiring according to the line length between every two adjacent nodes.

[0123] In one embodiment, the connection module 2203 is further configured to determine the number of architecture connection lines to be added in the multi-node wiring based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system; add at least one set of architecture connection lines in the multi-node wiring according to the number of sets, and configure the display characteristics of the common nodes of each set of architecture connection lines to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding architecture connection lines.

[0124] In one embodiment, the connection module 2203 is further configured to determine, based on the number of power devices in the target power grid system, the first group number of first architecture connection lines to be added to the multi-node wiring; based on the number of line crossings in the mesh structure of the target power grid system, the second group number of second architecture connection lines to be added to the multi-node wiring; based on the number of reactive power compensation capacitors in the target power grid system, the third group number of third architecture connection lines to be added to the multi-node wiring; and based on the sum of the first group number, the second group number, and the third group number, obtain the total number of architecture connection lines to be added to the multi-node wiring.

[0125] In one embodiment, the connection module 2203 is further configured to add a first group of first architecture connection lines to the multi-node cabling, and configure the display features of the common nodes of each group of first architecture connection lines as the component symbols corresponding to power equipment; add a second group of second architecture connection lines to the multi-node cabling, and configure the display features of the common nodes of each group of second architecture connection lines as circular nodes; add a third group of third architecture connection lines to the multi-node cabling, and configure the display features of the common nodes of each group of third architecture connection lines as the component symbols corresponding to reactive power compensation capacitors.

[0126] In one embodiment, the adjustment module 2204 is further configured to adjust the display status of the two first power switches connected to both ends of the target node to be disconnected, and adjust the display status of the first power switches connected to both ends of other nodes to be closed, for the lines between nodes in a multi-node cabling system; the target node is one or more nodes that divide the entire line; for the first architecture connecting line and the third architecture connecting line, the display status of the second power switch of one connecting line branch of the node to be connected is adjusted to be closed, and the display status of the second power switch of the remaining connecting line branches is adjusted to be open; for the second architecture connecting line, the display status of the second power switches of the two connecting line branches of the node to be connected is adjusted to be closed, and the display status of the second power switches of the remaining connecting line branches is adjusted to be open.

[0127] Each module in the aforementioned electrical network topology device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device in hardware form, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0128] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 23 As shown, this computer device includes a processor, memory, input / output interfaces (I / O), and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores topology data. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communicating with external terminals via a network connection. When the computer program is executed by the processor, it implements an electrical network topology method.

[0129] Those skilled in the art will understand that Figure 23 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0130] In an exemplary embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: establishing a multi-node wiring diagram based on the number of nodes in a target power grid system; the multi-node wiring diagram includes nodes of the specified number of nodes; adding lines between nodes in the multi-node wiring diagram according to the line parameters between nodes in the target power grid system, and adding a first switch identifier between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, for controlling the connection and disconnection of the line and the node; adding at least one set of architectural connecting lines in the multi-node wiring diagram to obtain a general topology of the target power grid system; each set of architectural connecting lines includes a common node, a number of connecting line branches of the specified number of nodes, and a number of second switch identifiers of the specified number of nodes, the connecting line branches being connected to each node respectively by the common node, the second switch identifier being located at the connection point between the connecting line branch and the node, the second switch identifier having two selectable display states, open and closed, for controlling the connection and disconnection of the connecting line branch and the node; adjusting the display states of the first switch identifier and the second switch identifier according to preset topology requirements to obtain the target topology of the target power grid system.

[0131] In one embodiment, when the processor executes the computer program, it also performs the following steps: determining the line length between every two adjacent nodes in the multi-node wiring according to the line parameters between nodes in the target power grid system; and adding lines between nodes in the multi-node wiring according to the line length between every two adjacent nodes.

[0132] In one embodiment, when the processor executes the computer program, it further performs the following steps: determining the number of groups of architectural connecting lines to be added in the multi-node wiring based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system; adding at least one group of architectural connecting lines in the multi-node wiring according to the number of groups, and configuring the display characteristics of the common nodes of each group of architectural connecting lines to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding architectural connecting lines.

[0133] In one embodiment, when the processor executes the computer program, it further performs the following steps: determining the first group number of first architecture connecting lines to be added to the multi-node wiring based on the number of power devices in the target power grid system; determining the second group number of second architecture connecting lines to be added to the multi-node wiring based on the number of line crossings in the mesh structure of the target power grid system; determining the third group number of third architecture connecting lines to be added to the multi-node wiring based on the number of reactive power compensation capacitors in the target power grid system; and obtaining the total number of architecture connecting lines to be added to the multi-node wiring by summing the first, second, and third group numbers.

[0134] In one embodiment, when the processor executes the computer program, it further implements the following steps: adding a first group of first architecture connection lines to the multi-node cable, and configuring the display feature of the common node of each group of first architecture connection lines as the component symbol corresponding to the power equipment; adding a second group of second architecture connection lines to the multi-node cable, and configuring the display feature of the common node of each group of second architecture connection lines as a circular node; adding a third group of third architecture connection lines to the multi-node cable, and configuring the display feature of the common node of each group of third architecture connection lines as the component symbol corresponding to the reactive power compensation capacitor.

[0135] In one embodiment, when the processor executes the computer program, it further performs the following steps: for the lines between nodes in a multi-node cabling, adjusting the display state of the two first power switches connected to both ends of the target node to be open, and adjusting the display state of the first power switches connected to both ends of other nodes to be closed; the target node is one or more nodes that divide the entire line; for the first architecture connecting line and the third architecture connecting line, adjusting the display state of the second power switch of one connecting line branch of the node to be connected to be closed, and adjusting the display state of the second power switch of the remaining connecting line branches to be open; for the second architecture connecting line, adjusting the display state of the second power switches of the two connecting line branches of the node to be connected to be closed, and adjusting the display state of the second power switches of the remaining connecting line branches to be open.

[0136] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When executed by a processor, the computer program performs the following steps: establishing a multi-node wiring diagram based on the number of nodes in the target power grid system; the multi-node wiring diagram includes nodes of the specified number of nodes; adding lines between nodes in the multi-node wiring diagram according to the line parameters between nodes in the target power grid system, and adding a first switch identifier between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, for controlling the connection and disconnection of the line and the node; adding at least one set of architectural connecting lines in the multi-node wiring diagram to obtain a general topology of the target power grid system; each set of architectural connecting lines includes a common node, a number of connecting line branches of the specified number of nodes, and a number of second switch identifiers of the specified number of nodes, wherein the connecting line branches are obtained by connecting the common node to each node respectively, and the second switch identifier is located at the connection point between the connecting line branch and the node, and the second switch identifier has two selectable display states, open and closed, for controlling the connection and disconnection of the connecting line branch and the node; adjusting the display states of the first switch identifier and the second switch identifier according to preset topology requirements to obtain the target topology of the target power grid system.

[0137] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the line length between every two adjacent nodes in the multi-node wiring according to the line parameters between nodes in the target power grid system; and adding lines between nodes in the multi-node wiring according to the line length between every two adjacent nodes.

[0138] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the number of groups of architectural connecting lines to be added in the multi-node wiring based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system; adding at least one group of architectural connecting lines in the multi-node wiring according to the number of groups, and configuring the display characteristics of the common nodes of each group of architectural connecting lines to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding architectural connecting lines.

[0139] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the first group number of first architecture connecting lines to be added to the multi-node wiring based on the number of power devices in the target power grid system; determining the second group number of second architecture connecting lines to be added to the multi-node wiring based on the number of line crossings in the mesh structure of the target power grid system; determining the third group number of third architecture connecting lines to be added to the multi-node wiring based on the number of reactive power compensation capacitors in the target power grid system; and obtaining the total number of architecture connecting lines to be added to the multi-node wiring by summing the first, second, and third group numbers.

[0140] In one embodiment, when the computer program is executed by the processor, it further implements the following steps: adding a first group of first architecture connection lines to the multi-node cabling, and configuring the display feature of the common node of each group of first architecture connection lines as the component symbol corresponding to the power equipment; adding a second group of second architecture connection lines to the multi-node cabling, and configuring the display feature of the common node of each group of second architecture connection lines as a circular node; adding a third group of third architecture connection lines to the multi-node cabling, and configuring the display feature of the common node of each group of third architecture connection lines as the component symbol corresponding to the reactive power compensation capacitor.

[0141] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: for the lines between nodes in a multi-node cabling, adjusting the display state of the two first power switches connected to both ends of the target node to be open, and adjusting the display state of the first power switches connected to both ends of other nodes to be closed; the target node is one or more nodes that divide the entire line; for the first architecture connecting line and the third architecture connecting line, adjusting the display state of the second power switch of one connecting line branch of the node to be connected to be closed, and adjusting the display state of the second power switch of the remaining connecting line branches to be open; for the second architecture connecting line, adjusting the display state of the second power switches of the two connecting line branches of the node to be connected to be closed, and adjusting the display state of the second power switches of the remaining connecting line branches to be open.

[0142] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps: establishing a multi-node wiring diagram based on the number of nodes in a target power grid system; the multi-node wiring diagram includes nodes of the specified number of nodes; adding lines between nodes in the multi-node wiring diagram according to the line parameters between nodes in the target power grid system, and adding a first switch identifier between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, for controlling the connection and disconnection of the line and the node; adding at least one set of architectural connecting lines in the multi-node wiring diagram to obtain a general topology of the target power grid system; each set of architectural connecting lines includes a common node, a number of connecting line branches of the specified number of nodes, and a number of second switch identifiers of the specified number of nodes, wherein the connecting line branches are obtained by connecting the common node to each node respectively, and the second switch identifier is located at the connection point between the connecting line branch and the node, and the second switch identifier has two selectable display states, open and closed, for controlling the connection and disconnection of the connecting line branch and the node; adjusting the display states of the first switch identifier and the second switch identifier according to preset topology requirements to obtain the target topology of the target power grid system.

[0143] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the line length between every two adjacent nodes in the multi-node wiring according to the line parameters between nodes in the target power grid system; and adding lines between nodes in the multi-node wiring according to the line length between every two adjacent nodes.

[0144] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the number of groups of architectural connecting lines to be added in the multi-node wiring based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system; adding at least one group of architectural connecting lines in the multi-node wiring according to the number of groups, and configuring the display characteristics of the common nodes of each group of architectural connecting lines to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding architectural connecting lines.

[0145] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: determining the first group number of first architecture connecting lines to be added to the multi-node wiring based on the number of power devices in the target power grid system; determining the second group number of second architecture connecting lines to be added to the multi-node wiring based on the number of line crossings in the mesh structure of the target power grid system; determining the third group number of third architecture connecting lines to be added to the multi-node wiring based on the number of reactive power compensation capacitors in the target power grid system; and obtaining the total number of architecture connecting lines to be added to the multi-node wiring by summing the first, second, and third group numbers.

[0146] In one embodiment, when the computer program is executed by the processor, it further implements the following steps: adding a first group of first architecture connection lines to the multi-node cabling, and configuring the display feature of the common node of each group of first architecture connection lines as the component symbol corresponding to the power equipment; adding a second group of second architecture connection lines to the multi-node cabling, and configuring the display feature of the common node of each group of second architecture connection lines as a circular node; adding a third group of third architecture connection lines to the multi-node cabling, and configuring the display feature of the common node of each group of third architecture connection lines as the component symbol corresponding to the reactive power compensation capacitor.

[0147] In one embodiment, when the computer program is executed by the processor, it further performs the following steps: for the lines between nodes in a multi-node cabling, adjusting the display state of the two first power switches connected to both ends of the target node to be open, and adjusting the display state of the first power switches connected to both ends of other nodes to be closed; the target node is one or more nodes that divide the entire line; for the first architecture connecting line and the third architecture connecting line, adjusting the display state of the second power switch of one connecting line branch of the node to be connected to be closed, and adjusting the display state of the second power switch of the remaining connecting line branches to be open; for the second architecture connecting line, adjusting the display state of the second power switches of the two connecting line branches of the node to be connected to be closed, and adjusting the display state of the second power switches of the remaining connecting line branches to be open.

[0148] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0149] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0150] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0151] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An electrical network topology method, characterized in that, The method includes: A multi-node wiring arrangement is established based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes specified in the arrangement. Based on the line parameters between nodes in the target power grid system, lines are added between nodes in the multi-node wiring, and a first switch identifier is added between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node; At least one set of architecture connection lines is added to the multi-node wiring to obtain the general topology of the target power grid system; each set of architecture connection lines includes a common node, a number of connection line branches of the specified number of nodes, and a number of second switch identifiers of the specified number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is located at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node. According to the preset topology requirements, the display states of the first switch identifier and the second switch identifier are adjusted to obtain the target topology of the target power grid system; The step of adding at least one set of architectural connection lines to the multi-node wiring to obtain the general topology of the target power grid system includes: Based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system, determine the number of sets of structural connection lines to be added to the multi-node wiring. Based on the number of groups, at least one set of architecture connection lines is added to the multi-node wiring, and the display characteristics of the common nodes of each set of architecture connection lines are configured to obtain the general topology of the target power grid system; the display characteristics are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected by the corresponding architecture connection lines.

2. The method according to claim 1, characterized in that, The step of adding lines between nodes in the multi-node wiring according to the line parameters between nodes in the target power grid system includes: Based on the line parameters between each node in the target power grid system, determine the line length between every two adjacent nodes in the multi-node wiring; Based on the line length between every two adjacent nodes, add lines between the nodes in the multi-node cabling.

3. The method according to claim 1, characterized in that, The determination of the number of structural connection lines to be added in the multi-node cabling, based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system, includes: Based on the number of power devices in the target power grid system, determine the first group number of first architecture connection lines that need to be added to the multi-node cabling; Based on the number of line crossings in the mesh structure of the target power grid system, determine the second group number of second architecture connecting lines that need to be added to the multi-node wiring; Based on the number of reactive power compensation capacitors in the target power grid system, determine the third group number of the third architecture connection lines that need to be added to the multi-node cabling; The number of architecture connection lines that need to be added to the multi-node cabling is obtained by summing the first group number, the second group number, and the third group number.

4. The method according to claim 3, characterized in that, The step of adding at least one set of architecture connection lines to the multi-node cabling according to the number of groups, and configuring the display characteristics of the common nodes of each set of architecture connection lines, includes: Add the first group of first architecture connection lines to the multi-node cabling, and configure the display features of the common nodes of each group of first architecture connection lines as the component symbols corresponding to the power equipment. Add the second group of second architecture connection lines to the multi-node cabling, and configure the display feature of the common node of each group of second architecture connection lines as a circular node; Add the third group of third architecture connection lines to the multi-node cabling, and configure the display feature of the common node of each group of third architecture connection lines as the component symbol corresponding to the reactive power compensation capacitor.

5. The method according to claim 4, characterized in that, The step of adjusting the display status of the first switch icon and the second switch icon according to preset topology requirements includes: For the lines between nodes in the multi-node cabling, the display status of the two first power switches connected to both ends of the target node is adjusted to be open, and the display status of the first power switches connected to both ends of other nodes is adjusted to be closed; the target node is one or more nodes that divide the entire line. For the first architecture connection line and the third architecture connection line, the display state of the second power switch of one connection line branch that needs to be connected to the node is adjusted to closed, and the display state of the second power switch of the remaining connection line branches is adjusted to open. For the second architecture connection line, adjust the display status of the second power switch of the two connection line branches that need to be connected to be closed, and adjust the display status of the second power switch of the remaining connection line branches to be open.

6. An electrical network topology device, characterized in that, The device includes: A node module is used to establish a multi-node wiring arrangement based on the number of nodes in the target power grid system; the multi-node wiring arrangement includes the number of nodes specified. The line module is used to add lines between nodes in the multi-node wiring according to the line parameters between nodes in the target power grid system, and to add a first switch identifier between each line endpoint and an adjacent node; the first switch identifier has two selectable display states, open and closed, to control the connection and disconnection of the line and the node; A connection module is used to add at least one set of architecture connection lines to the multi-node wiring to obtain a general topology of the target power grid system. Each set of architecture connection lines includes a common node, a number of connection line branches of the specified number of nodes, and a number of second switch identifiers of the specified number of nodes. The connection line branches are obtained by connecting the common node to each node respectively. The second switch identifier is located at the connection between the connection line branch and the node. The second switch identifier has two selectable display states: open and closed, which are used to control the connection and disconnection between the connection line branch and the node. An adjustment module is used to adjust the display status of the first switch identifier and the second switch identifier according to preset topology requirements, so as to obtain the target topology of the target power grid system; The connection module is further configured to determine the number of architecture connection lines to be added to the multi-node wiring based on the number of power equipment, mesh structure line crossings, and reactive power compensation capacitors in the target power grid system; add at least one set of architecture connection lines to the multi-node wiring based on the number of sets, and configure the display features of the common nodes of each set of architecture connection lines to obtain the general topology of the target power grid system; the display features are used to characterize the power equipment, mesh structure line crossings, or reactive power compensation capacitors connected to the corresponding architecture connection lines.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

9. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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