A substation graphical electrical circuit modeling method and system

Abstract

The application provides a substation graphical electrical circuit modeling method, comprising: receiving secondary equipment wiring checking work tasks; determining the electrical circuit to be checked and its associated devices and electrical equipment according to the secondary equipment wiring checking work tasks, and further determining the screen cabinet, the small room and the electrical port connected therewith; binding the devices, the electrical equipment, the screen cabinet, the small room and the electrical port based on a combined graphics library and an information model database to realize the graphical modeling of the electrical circuit to be checked; wherein the combined graphics library is composed of images of the devices, the electrical equipment, the screen cabinet, the small room and the electrical port in the substation; the information model database is composed of information models of the small room, the screen cabinet, the devices, the electrical equipment and the electrical port, and the information models form corresponding relationships with the graphics by carrying different attributes and assignments. By implementing the application, the defects existing in the current secondary equipment account management mode can be avoided, thereby reducing the checking difficulty, the missed detection and the wrong detection of the key circuit.

Description

Technical Field

[0001] This invention relates to the field of computer image processing technology, and in particular to a method and system for graphical electrical circuit modeling of substations. Background Technology

[0002] With the increasing number of secondary equipment wiring inspections, there are several problems with the secondary equipment ledger management method, mainly the following two aspects: (1) The image display is not clear, which makes it impossible to confirm the terminal number and the internal wiring of the terminal; (2) The secondary equipment manufacturers, GIS equipment manufacturers, secondary wiring drawings and secondary wiring of the same interval are not closely related, which leads to problems such as untimely investigation of hidden dangers and slow down the project progress.

[0003] Therefore, in order to solve the above problems, it is necessary to graphically connect all related components in the secondary equipment wiring inspection and statistics work in the substation, thereby reducing the difficulty of inspecting critical circuits and reducing missed and incorrect inspections. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a graphical electrical circuit modeling method and system for substations, which can avoid the defects of the existing secondary equipment ledger management method, thereby reducing the difficulty of checking critical circuits, and reducing missed detections and false detections.

[0005] To address the aforementioned technical problems, this invention provides a graphical electrical circuit modeling method for substations, the method comprising the following steps:

[0006] Receive the task of troubleshooting secondary equipment wiring.

[0007] Based on the secondary equipment wiring troubleshooting task, determine the electrical circuits to be investigated and their associated devices and electrical equipment, and further determine the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports that connect the associated devices and electrical equipment.

[0008] Based on a pre-defined combined graphics library and information model database, the identified devices, electrical equipment, cabinets, compartments, and electrical outlets are bound together with graphics and information models to achieve graphical modeling of the electrical circuits to be investigated. The combined graphics library consists of graphics formed by visualizing all pre-defined devices, electrical equipment, cabinets, compartments, and all electrical outlets on each device and each electrical equipment in the substation. The information model database consists of pre-defined information models for compartments, cabinets, devices, electrical equipment, and electrical outlets, with each information model carrying corresponding attributes and forming a correspondence with each graphic in the combined graphics library through attribute assignment.

[0009] The specific steps for binding the determined devices, electrical equipment, cabinets, rooms, and electrical outlets with graphical and information models based on a preset combined graphics library and information model database to achieve graphical modeling of the electrical circuit to be investigated include:

[0010] From the combined graphics library, select the graphics of the respective cabinets and compartments to which each device and electrical equipment belongs, and according to the information model database, assign and bind the attributes of each selected cabinet and compartment in the cabinet information model and the compartment information model respectively.

[0011] From the combined graphics library, select the graphics of each device, and according to the information model database, assign and bind the attributes of each selected device in the device information model.

[0012] From the combined graphics library, select the graphics of each electrical device, and according to the information model database, assign and bind the attributes of each selected electrical device in the electrical device information model.

[0013] From the combined graphics library, select the graphics of the electrical ports that interconnect the determined devices and electrical equipment devices, and assign and bind the attributes of each selected electrical port in the electrical port information model according to the information model database.

[0014] By completing the connections between the selected electrical ports, the electrical circuit to be investigated can be graphically modeled.

[0015] The attributes of the cell information model include cell identifier, cell name, and cell description; the cell identifier is a unique identifier for a cell in a substation; the cell description includes the starting coordinates of the cell graphic, the width and height of the cell graphic, and the type of the cell graphic.

[0016] The attributes of the cabinet information model include cabinet identifier, cabinet name, cabinet description, and the identifier of the compartment to which the cabinet belongs; wherein, the cabinet identifier is a unique identifier for the cabinet in the substation; the compartment identifier indicates the compartment identifier to which the cabinet belongs; the cabinet description includes the starting coordinates of the cabinet graphic, the width and height of the cabinet graphic, and the type of the cabinet graphic;

[0017] The attributes of the device information model include device identifier, device name, device description, device type, and cabinet identifier to which the device belongs; wherein, the device identifier is a unique identifier for the device in the substation; the device type includes intelligent devices, fiber optic distribution frames, switches, time synchronization devices, and energy meters; the cabinet identifier to which the device belongs indicates the cabinet identifier of the cabinet to which the device belongs; the device description includes the starting coordinates of the device graphic, the width and height of the device graphic, and the type of the device graphic;

[0018] The attributes of the electrical equipment information model include electrical equipment identifier, electrical equipment name, electrical equipment description, electrical equipment type, and the cabinet identifier to which the electrical equipment belongs; wherein, the electrical equipment identifier is a unique identifier for electrical equipment in the substation; the electrical equipment type includes normally open contacts, normally closed contacts, terminal blocks, and pressure plates; the cabinet identifier to which the electrical equipment belongs indicates the cabinet identifier of the cabinet to which the electrical equipment belongs; the electrical equipment description includes the coordinate information of the electrical equipment graphic, the type of the electrical equipment graphic, and the radius or length of the electrical equipment graphic;

[0019] The attributes of the electrical port information model include electrical port identifier, electrical port number, electrical port description, and electrical equipment identifier or device identifier to which the electrical port belongs; wherein, the electrical port identifier is a unique identifier for an electrical port in a substation; the electrical equipment identifier to which the electrical port belongs represents the electrical equipment identifier of the electrical equipment to which the electrical port belongs; and the device identifier to which the electrical port belongs represents the device identifier of the device to which the electrical port belongs.

[0020] The information model database is designed based on the substation design drawings; the design drawings include small room layout diagrams, cabinet distribution diagrams, cabinet internal layout diagrams, device backplane diagrams, and electrical circuit diagrams.

[0021] Each graphic in the combined graphics library is obtained by drawing graphics using GDI+.

[0022] The device information model also includes a manufacturer description, which includes a user manual, manufacturer information, GIS organization information, and the year of production.

[0023] The method further includes:

[0024] The circuit to be investigated is located and analyzed after graphical modeling in order to determine whether the fault point exists.

[0025] This invention also provides a graphical electrical circuit modeling system for substations, comprising:

[0026] The task receiving unit is used to receive tasks related to troubleshooting wiring of secondary equipment.

[0027] The electrical circuit topology determination unit is used to determine the electrical circuit to be investigated and its associated devices and electrical equipment according to the secondary equipment wiring troubleshooting task, and further determine the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports for interconnection between the associated devices and electrical equipment.

[0028] The circuit graphical modeling unit is used to bind the determined devices, electrical equipment, cabinets, compartments, and electrical outlets with graphical and information models based on a preset combined graphical library and information model database, thereby realizing the graphical modeling of the circuit to be investigated. The combined graphical library consists of graphics formed by visualizing all preset devices, electrical equipment, cabinets, compartments, and all electrical outlets on each device and each electrical equipment in the substation. The information model database consists of predefined information models for compartments, cabinets, devices, electrical equipment, and electrical outlets, with each information model carrying corresponding attributes and forming a correspondence with each graphic in the combined graphical library through attribute assignment.

[0029] The circuit graphical modeling unit includes:

[0030] The graphical binding module for cabinets and small rooms is used to select the graphics of each device and electrical equipment belonging to the cabinet and small room from the combined graphics library, and to assign and bind the attributes of each selected cabinet and small room in the cabinet information model and the small room information model respectively according to the information model database.

[0031] The device graphical binding module is used to select the graphics of each determined device from the combined graphics library, and assign values ​​to the attributes of each selected device in the device information model according to the information model database.

[0032] The electrical equipment graphical binding module is used to select the graphics of each determined electrical equipment from the combined graphics library, and assign values ​​to the attributes of each selected electrical equipment in the electrical equipment information model according to the information model database.

[0033] The electrical port graphical binding module is used to select the graphics of the electrical ports that are interconnected between the determined devices and electrical equipment devices from the combined graphics library, and to assign and bind the attributes of the selected electrical ports in the electrical port information model according to the information model database.

[0034] The wiring completion module is used to complete the wiring between the selected electrical ports, thereby realizing the graphical modeling of the electrical circuit to be investigated.

[0035] The information model database is designed based on the substation design drawings; the design drawings include small room layout diagrams, cabinet distribution diagrams, cabinet internal layout diagrams, device backplane diagrams, and electrical circuit diagrams.

[0036] Each graphic in the combined graphics library is obtained by drawing graphics using GDI+.

[0037] This also includes:

[0038] The fault point analysis and troubleshooting unit is used to locate and analyze the electrical circuit to be investigated after graphical modeling, so as to determine whether a fault point exists.

[0039] Implementing the embodiments of the present invention has the following beneficial effects:

[0040] This invention, based on the secondary equipment wiring troubleshooting task, identifies the electrical circuits to be investigated, their associated devices and electrical equipment, as well as their respective cabinets, compartments, and interconnecting electrical ports. By combining a graphics library and an information model database, the devices, electrical equipment, cabinets, compartments, and electrical ports are bound together with graphical and information models, realizing graphical modeling of the electrical circuits to be investigated. This avoids the defects of existing secondary equipment ledger management methods and reduces the difficulty of investigating critical circuits, as well as the occurrence of missed or incorrect inspections. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0042] Figure 1 A flowchart of a graphical electrical circuit modeling method for substations provided in an embodiment of the present invention;

[0043] Figure 2 The circuit modeling diagram is shown in the application scenario of the graphical circuit modeling method for substations provided in this embodiment of the invention.

[0044] Figure 3 This is a schematic diagram of a graphical electrical circuit modeling system for substations provided in an embodiment of the present invention. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0046] like Figure 1As shown in the figure, a graphical electrical circuit modeling method for substations is proposed in an embodiment of the present invention. The method includes the following steps:

[0047] Step S1: Receive the task of troubleshooting secondary equipment wiring;

[0048] Step S2: Based on the secondary equipment wiring troubleshooting task, determine the electrical circuit to be troubleshooted and its associated devices and electrical equipment, and further determine the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports for interconnection between the associated devices and electrical equipment.

[0049] Step S3: Based on the preset combined graphics library and information model database, the determined devices, electrical equipment, cabinets, compartments, and electrical ports are bound to graphics and information models to realize the graphical modeling of the electrical circuit to be investigated. The combined graphics library consists of graphics formed by visualizing all preset devices, electrical equipment, cabinets, compartments, and all electrical ports on each device and each electrical device in the substation. The information model database consists of predefined information models for compartments, cabinets, devices, electrical equipment, and electrical ports, with each information model carrying corresponding attributes and forming a correspondence with each graphic in the combined graphics library through attribute assignment.

[0050] The specific process is as follows: before step S1, the computer equipment first collects the design drawings of the substation, including but not limited to the small room layout diagram, cabinet distribution diagram, cabinet internal layout diagram, device back panel diagram and electrical circuit diagram, etc.

[0051] Secondly, based on the substation design drawings, computer equipment pre-designs a combined graphics library and an information model database. Each graphic in the combined graphics library is obtained through GDI+ drawing. This combined graphics library consists of graphics formed by visualizing all pre-installed devices, electrical equipment, cabinets, compartments, and all electrical ports on each device and electrical equipment in the substation. The information model database consists of pre-defined information models for compartments, cabinets, devices, electrical equipment, and electrical ports. Each information model carries corresponding attributes, and these attributes are assigned to each graphic in the combined graphics library to form a correspondence. For example, G language is used to process the association between graphics and information models.

[0052] At this point, the attributes of the cell information model include cell identifier, cell name, and cell description; among them, the cell identifier is the unique identifier of a cell in the substation; the cell description includes the starting coordinates of the cell graphic, the width and height of the cell graphic, and the type of the cell graphic.

[0053] The attributes of the panel information model include panel identifier, panel name, panel description, and the identifier of the compartment to which the panel belongs; among them, the panel identifier is the unique identifier of the panel in the substation; the compartment identifier indicates the compartment identifier to which the panel belongs; the panel description includes the starting coordinates of the panel graphic, the width and height of the panel graphic, and the type of the panel graphic.

[0054] The attributes of the device information model include device identifier, device name, device description, device type, and the identifier of the cabinet to which the device belongs. The device identifier is a unique identifier for the device within the substation. Device types include, but are not limited to, intelligent devices, fiber optic distribution frames, switches, time synchronization devices, and energy meters. The cabinet identifier indicates the cabinet to which the device belongs. The device description includes the starting coordinates of the device graphic, the width and height of the device graphic, and the type of the device graphic. The device information model also includes a manufacturer description to facilitate data organization; this description includes the instruction manual, manufacturer information, GIS organization information, and the year of commissioning.

[0055] The attributes of the electrical equipment information model include electrical equipment identifier, electrical equipment name, electrical equipment description, electrical equipment type, and the cabinet identifier to which the electrical equipment belongs. Among them, the electrical equipment identifier is the unique identifier of the electrical equipment in the substation; the electrical equipment type includes, but is not limited to, normally open contacts, normally closed contacts, terminal blocks, and pressure plates; the cabinet identifier to which the electrical equipment belongs indicates the cabinet identifier of the cabinet to which the electrical equipment belongs; the electrical equipment description includes the coordinate information of the electrical equipment graphic, the type of the electrical equipment graphic, and the radius or length of the electrical equipment graphic.

[0056] The attributes of the electrical port information model include electrical port identifier, electrical port number, electrical port description, and electrical equipment identifier or device identifier to which the electrical port belongs; among them, the electrical port identifier is the unique identifier of the electrical port in the substation; the electrical equipment identifier to which the electrical port belongs represents the electrical equipment identifier of the electrical equipment to which the electrical port belongs; and the device identifier to which the electrical port belongs represents the device identifier of the device to which the electrical port belongs.

[0057] In step S1, the computer device receives the task of troubleshooting the wiring of the secondary equipment.

[0058] In step S2, the computer equipment automatically determines the electrical circuit to be investigated and its associated devices and electrical equipment according to the above-mentioned secondary equipment wiring troubleshooting task, and further determines the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports for interconnection between the associated devices and electrical equipment.

[0059] In step S2, the computer device first selects the graphics of each device and electrical equipment belonging to its respective cabinet and room from the combined graphics library, and assigns and binds the attributes of each selected cabinet and room in the cabinet information model and room information model respectively according to the information model database.

[0060] Secondly, select the graphics of each device from the combined graphics library, and assign and bind the attributes of each selected device in the device information model according to the information model database.

[0061] Next, select the graphics of each electrical device from the combined graphics library, and assign and bind the attributes of each selected electrical device in the electrical device information model according to the information model database.

[0062] Then, from the combined graphics library, select the graphics of the electrical ports that interconnect the determined devices and electrical equipment devices, and assign and bind the attributes of each selected electrical port in the electrical port information model according to the information model database.

[0063] Finally, the system automatically completes the connections between the selected electrical ports, thus enabling graphical modeling of the electrical circuit to be investigated.

[0064] In this embodiment of the invention, fault points in electrical circuits can be analyzed by centrally reviewing digital drawings. Therefore, the method further includes: performing location analysis on the electrical circuit to be investigated after graphical modeling to determine whether fault points exist.

[0065] like Figure 2 As shown, the application scenarios of the graphical electrical circuit modeling method for substations proposed in this embodiment of the invention are further explained as follows:

[0066] exist Figure 2 In the image, the rectangle represents the screen cabinet. Indicates pressure plate. This indicates the terminals on the terminal block. Indicates the electrical ports on the back panel of the device. This indicates a normally open contact.

[0067] 1) According to the design drawings, first select the cabinet graphic in the combination graphic library and bind it to the corresponding cabinet information model in the information database; the x and y attributes record the starting coordinates of the cabinet graphic, the width and height attributes record the width and height of the cabinet graphic, and the type attribute records the type of the cabinet graphic.

[0068] 2) Select the device graphic and bind it to the corresponding device information model in the information database; the x and y attributes record the starting coordinates of the device graphic, the width and height attributes record the width and height of the device graphic, and the type attribute records the type of the device graphic.

[0069] 3) Select the electrical port graphic, enter the corresponding electrical port number on the design drawing, and bind it to the corresponding electrical port information model in the information database; the cx and cy attributes record the coordinate information of the electrical port graphic, the r attribute represents the radius of the circle in the electrical port graphic, the type attribute records the type of the graphic, and the number attribute records the serial number information of the electrical port. It will determine whether the coordinates of the electrical port graphic are within the coordinate range of the device graphic. If it is within the range, the parentId attribute of the electrical port graphic will record the device information model bound to the device graphic. If it is not within the range, a prompt message will be given.

[0070] 4) Select the pressure plate graphic and bind it to the corresponding electrical equipment information model in the information database; the cx and cy attributes record the coordinate information of the pressure plate graphic, the r attribute represents the radius of the circular graphic in the pressure plate, and the type attribute records the type of the pressure plate graphic;

[0071] 5) Select the terminal graphic, first bind it to the corresponding electrical equipment information model in the information database, and then enter the terminal number; the cx and cy attributes represent its coordinate information, the r attribute represents the radius of the circular graphic in the terminal, the type attribute records the type of the graphic, the tag attribute records the information model of its parent terminal block, and the number attribute records the terminal number information.

[0072] 6) Select the normally open contact graphic and bind it to the corresponding electrical equipment information model in the information database. The x1 and y1 attributes record the starting coordinate information of the normally open contact graphic, the x2 and y2 attributes record the ending coordinate information of the normally open contact graphic, the type attribute records the type of the graphic, and the tag attribute records the type of electrical equipment it is bound to.

[0073] 7) Bind all graphics to the information model in the information database according to the information on the design drawings;

[0074] 8) Finally, complete the connection and save it as an image file, and convert the image file into XML format and store it in the database to realize the graphical modeling of the electrical circuit.

[0075] like Figure 3 As shown in the figure, a graphical electrical circuit modeling system for substations is proposed in an embodiment of the present invention, comprising:

[0076] The task receiving unit 110 is used to receive secondary equipment wiring troubleshooting tasks.

[0077] The electrical circuit topology determination unit 120 is used to determine the electrical circuit to be investigated and its associated devices and electrical equipment according to the secondary equipment wiring troubleshooting task, and further determine the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports for interconnection between the associated devices and electrical equipment.

[0078] The circuit graphical modeling unit 130 is used to bind the determined devices, electrical equipment, cabinets, compartments, and electrical outlets with graphical and information models based on a preset combined graphical library and information model database, thereby realizing the graphical modeling of the circuit to be investigated. The combined graphical library consists of graphics formed by visualizing all preset devices, electrical equipment, cabinets, compartments, and all electrical outlets on each device and each electrical equipment in the substation. The information model database consists of predefined information models for compartments, cabinets, devices, electrical equipment, and electrical outlets, with each information model carrying corresponding attributes and forming a correspondence with each graphic in the combined graphical library through attribute assignment.

[0079] The circuit graphical modeling unit 130 includes:

[0080] The graphical binding module for cabinets and small rooms is used to select the graphics of each device and electrical equipment belonging to the cabinet and small room from the combined graphics library, and to assign and bind the attributes of each selected cabinet and small room in the cabinet information model and the small room information model respectively according to the information model database.

[0081] The device graphical binding module is used to select the graphics of each determined device from the combined graphics library, and assign values ​​to the attributes of each selected device in the device information model according to the information model database.

[0082] The electrical equipment graphical binding module is used to select the graphics of each determined electrical equipment from the combined graphics library, and assign values ​​to the attributes of each selected electrical equipment in the electrical equipment information model according to the information model database.

[0083] The electrical port graphical binding module is used to select the graphics of the electrical ports that are interconnected between the determined devices and electrical equipment devices from the combined graphics library, and to assign and bind the attributes of the selected electrical ports in the electrical port information model according to the information model database.

[0084] The wiring completion module is used to complete the wiring between the selected electrical ports, thereby realizing the graphical modeling of the electrical circuit to be investigated.

[0085] The information model database is designed based on the substation design drawings; the design drawings include small room layout diagrams, cabinet distribution diagrams, cabinet internal layout diagrams, device backplane diagrams, and electrical circuit diagrams.

[0086] Each graphic in the combined graphics library is obtained by drawing graphics using GDI+.

[0087] This also includes:

[0088] The fault point analysis and troubleshooting unit is used to locate and analyze the electrical circuit to be investigated after graphical modeling, so as to determine whether a fault point exists.

[0089] Implementing the embodiments of the present invention has the following beneficial effects:

[0090] This invention, based on the secondary equipment wiring troubleshooting task, identifies the electrical circuits to be investigated, their associated devices and electrical equipment, as well as their respective cabinets, compartments, and interconnecting electrical ports. By combining a graphics library and an information model database, the devices, electrical equipment, cabinets, compartments, and electrical ports are bound together with graphical and information models, realizing graphical modeling of the electrical circuits to be investigated. This avoids the defects of existing secondary equipment ledger management methods and reduces the difficulty of investigating critical circuits, as well as the occurrence of missed or incorrect inspections.

[0091] It is worth noting that in the above system embodiments, the various system units included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of the present invention.

[0092] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as ROM / RAM, disk, optical disk, etc.

[0093] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A substation graphical electrical circuit modeling method, characterized in that, The method includes the following steps: Receive the task of troubleshooting secondary equipment wiring. Based on the secondary equipment wiring troubleshooting task, determine the electrical circuits to be investigated and their associated devices and electrical equipment, and further determine the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports that connect the associated devices and electrical equipment. From the preset combined graphic library, select the graphics of the respective cabinets and compartments to which each device and electrical equipment belongs, and assign and bind the attributes of each selected cabinet and compartment in the cabinet information model and compartment information model, respectively, according to the information model database; from the combined graphic library, select the graphics of each determined device, and assign and bind the attributes of each selected device in the device information model, respectively, according to the information model database; from the combined graphic library, select the graphics of each determined electrical equipment, and assign and bind the attributes of each selected electrical equipment in the electrical equipment information model, respectively, according to the information model database; from the combined graphic library, select the determined devices and electrical equipment... The system generates graphical representations of interconnecting electrical ports between devices. Based on the information model database, attributes of each selected electrical port are assigned and bound within the electrical port information model. This completes the connection between the selected electrical ports, thus achieving graphical modeling of the electrical circuit to be investigated. The combined graphical library consists of graphical representations of all pre-set devices, electrical equipment, cabinets, and compartments in the substation, as well as all electrical ports on each device and electrical equipment. The information model database comprises pre-defined compartment information models, cabinet information models, device information models, electrical equipment information models, and electrical port information models. Each information model carries corresponding attributes and establishes a correspondence with each graphic in the combined graphical library through attribute assignment. The attributes of the cell information model include cell identifier, cell name, and cell description; wherein, the cell identifier is a unique identifier for a cell in the substation; the cell description includes the starting coordinates of the cell graphic, the width and height of the cell graphic, and the type of the cell graphic; The attributes of the cabinet information model include cabinet identifier, cabinet name, cabinet description, and the identifier of the compartment to which the cabinet belongs; wherein, the cabinet identifier is a unique identifier for the cabinet in the substation; the compartment identifier indicates the compartment identifier to which the cabinet belongs; the cabinet description includes the starting coordinates of the cabinet graphic, the width and height of the cabinet graphic, and the type of the cabinet graphic; The attributes of the device information model include device identifier, device name, device description, device type, and cabinet identifier to which the device belongs; wherein, the device identifier is a unique identifier for the device in the substation; the device type includes intelligent devices, fiber optic distribution frames, switches, time synchronization devices, and energy meters; the cabinet identifier to which the device belongs indicates the cabinet identifier of the cabinet to which the device belongs; the device description includes the starting coordinates of the device graphic, the width and height of the device graphic, and the type of the device graphic; The attributes of the electrical equipment information model include electrical equipment identifier, electrical equipment name, electrical equipment description, electrical equipment type, and the cabinet identifier to which the electrical equipment belongs; wherein, the electrical equipment identifier is a unique identifier for electrical equipment in the substation; the electrical equipment type includes normally open contacts, normally closed contacts, terminal blocks, and pressure plates; the cabinet identifier to which the electrical equipment belongs indicates the cabinet identifier of the cabinet to which the electrical equipment belongs; the electrical equipment description includes the coordinate information of the electrical equipment graphic, the type of the electrical equipment graphic, and the radius or length of the electrical equipment graphic; The attributes of the electrical port information model include electrical port identifier, electrical port number, electrical port description, and electrical equipment identifier or device identifier to which the electrical port belongs; wherein, the electrical port identifier is a unique identifier for an electrical port in a substation; the electrical equipment identifier to which the electrical port belongs represents the electrical equipment identifier of the electrical equipment to which the electrical port belongs; and the device identifier to which the electrical port belongs represents the device identifier of the device to which the electrical port belongs.

2. The substation graphical electrical circuit modeling method of claim 1, wherein, The information model database is designed based on the substation design drawings; wherein, the design drawings include small room layout diagrams, cabinet distribution diagrams, cabinet internal layout diagrams, device backplane diagrams, and electrical circuit diagrams; Each graphic in the combined graphics library is obtained by drawing graphics using GDI+.

3. The graphical electrical circuit modeling method for substations as described in claim 1, characterized in that, The attributes of the device information model also include a manufacturer description; wherein the manufacturer description includes the instruction manual, manufacturer information, GIS organization information, and the year of production.

4. The substation graphical circuit modeling method as described in claim 1, characterized in that, The method further includes: The circuit to be investigated is located and analyzed after graphical modeling in order to determine whether the fault point exists.

5. A graphical electrical circuit modeling system for substations, characterized in that, include: The task receiving unit is used to receive tasks related to troubleshooting wiring of secondary equipment. The electrical circuit topology determination unit is used to determine the electrical circuit to be investigated and its associated devices and electrical equipment according to the secondary equipment wiring troubleshooting task, and further determine the cabinets and compartments to which the associated devices and electrical equipment belong, as well as the electrical ports for interconnection between the associated devices and electrical equipment. The circuit graphical modeling unit is used to bind the determined devices, electrical equipment, cabinets, compartments, and electrical outlets with graphical and information models based on a preset combined graphical library and information model database, thereby realizing the graphical modeling of the circuit to be investigated. The combined graphical library consists of graphics formed by visualizing all preset devices, electrical equipment, cabinets, compartments, and all electrical outlets on each device and each electrical equipment in the substation. The information model database consists of predefined information models for compartments, cabinets, devices, electrical equipment, and electrical outlets, with each information model carrying corresponding attributes and forming a correspondence with each graphic in the combined graphical library through attribute assignment. The circuit graphical modeling unit includes: The graphical binding module for cabinets and small rooms is used to select the graphics of each device and electrical equipment belonging to the cabinet and small room from the combined graphics library, and to assign and bind the attributes of each selected cabinet and small room in the cabinet information model and the small room information model respectively according to the information model database. The device graphical binding module is used to select the graphics of each determined device from the combined graphics library, and assign values ​​to the attributes of each selected device in the device information model according to the information model database. The electrical equipment graphical binding module is used to select the graphics of each determined electrical equipment from the combined graphics library, and assign values ​​to the attributes of each selected electrical equipment in the electrical equipment information model according to the information model database. The electrical port graphical binding module is used to select the graphics of the electrical ports that are interconnected between the determined devices and electrical equipment devices from the combined graphics library, and to assign and bind the attributes of the selected electrical ports in the electrical port information model according to the information model database. The wiring completion module is used to complete the wiring between the selected electrical ports, thereby realizing the graphical modeling of the electrical circuit to be investigated. The attributes of the cell information model include cell identifier, cell name, and cell description; wherein, the cell identifier is a unique identifier for a cell in the substation; the cell description includes the starting coordinates of the cell graphic, the width and height of the cell graphic, and the type of the cell graphic; The attributes of the cabinet information model include cabinet identifier, cabinet name, cabinet description, and the identifier of the compartment to which the cabinet belongs; wherein, the cabinet identifier is a unique identifier for the cabinet in the substation; the compartment identifier indicates the compartment identifier to which the cabinet belongs; the cabinet description includes the starting coordinates of the cabinet graphic, the width and height of the cabinet graphic, and the type of the cabinet graphic; The attributes of the device information model include device identifier, device name, device description, device type, and cabinet identifier to which the device belongs; wherein, the device identifier is a unique identifier for the device in the substation; the device type includes intelligent devices, fiber optic distribution frames, switches, time synchronization devices, and energy meters; the cabinet identifier to which the device belongs indicates the cabinet identifier of the cabinet to which the device belongs; the device description includes the starting coordinates of the device graphic, the width and height of the device graphic, and the type of the device graphic; The attributes of the electrical equipment information model include electrical equipment identifier, electrical equipment name, electrical equipment description, electrical equipment type, and the cabinet identifier to which the electrical equipment belongs; wherein, the electrical equipment identifier is a unique identifier for electrical equipment in the substation; the electrical equipment type includes normally open contacts, normally closed contacts, terminal blocks, and pressure plates; the cabinet identifier to which the electrical equipment belongs indicates the cabinet identifier of the cabinet to which the electrical equipment belongs; the electrical equipment description includes the coordinate information of the electrical equipment graphic, the type of the electrical equipment graphic, and the radius or length of the electrical equipment graphic; The attributes of the electrical port information model include electrical port identifier, electrical port number, electrical port description, and electrical equipment identifier or device identifier to which the electrical port belongs; wherein, the electrical port identifier is a unique identifier for an electrical port in a substation; the electrical equipment identifier to which the electrical port belongs represents the electrical equipment identifier of the electrical equipment to which the electrical port belongs; and the device identifier to which the electrical port belongs represents the device identifier of the device to which the electrical port belongs.

6. The substation graphical circuit modeling system as described in claim 5, characterized in that, The information model database is designed based on the substation design drawings; wherein, the design drawings include small room layout diagrams, cabinet distribution diagrams, cabinet internal layout diagrams, device backplane diagrams, and electrical circuit diagrams; Each graphic in the combined graphics library is obtained by drawing graphics using GDI+.

7. The substation graphical circuit modeling system as described in claim 5, characterized in that, Also includes: The fault point analysis and troubleshooting unit is used to locate and analyze the electrical circuit to be investigated after graphical modeling, so as to determine whether a fault point exists.

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