A method and system for generating a simulation interval diagram of a substation control center

Abstract

A substation control station simulation interval chart generation method and system, the method comprising the following steps: step 1, extracting a simulation device-device association table; step 2, constructing a simulation device information library; step 3, generating a simulation remote signaling point table; step 4, generating a simulation interval-device-device association table based on power grid topology analysis; step 5, establishing a control station interval chart style, layout general template; step 6, generating an interval electrical main wiring according to the power grid primary wiring diagram topology relationship; step 7, real-time dynamic generation of interval chart remote signaling table related area. The method uses related information collection and organization, topology analysis and interval chart template configuration and definition to realize the automatic generation of substation control station simulation interval chart, improving the efficiency.

Description

Technical Field

[0001] This invention belongs to the field of power simulation training and relates to a method for generating simulation bay diagrams of substation centralized control stations. Background Technology

[0002] In 2022, the State Grid Corporation of China had approximately 40,000 substations of 35kV and above, with 3,364 substation maintenance teams and a total of over 60,000 substation maintenance personnel at the provincial and municipal levels. Since 2012, the number of substations under the company has increased by 30.5%, and the average maintenance workload per person has increased from 0.37 substations / person to 0.64 substations / person, an increase of 73%. With the continuous expansion of substation equipment, problems have emerged such as insufficient equipment monitoring intensity, insufficient detail in maintenance management, and insufficient support capabilities. The current substation maintenance management model is gradually becoming inadequate for the requirements of lean substation management. In response to this situation, the State Grid Corporation of China requires the implementation of an equipment ownership system, optimization of the localized substation maintenance model according to local conditions, and the implementation of centralized substation monitoring.

[0003] Substation centralized control stations centralize various operational data from multiple substations for monitoring their operational status. This enables centralized monitoring of main equipment, auxiliary equipment, and fire-fighting equipment within the substation. The equipment monitoring distinguishes between normal operation signals, accident signals, and abnormal signals, and has functions such as data exceeding limits alarm and accident signal push. This improves the intensity of substation operation and maintenance monitoring, the granularity of equipment management, the level of production informatization, and the strength of team building.

[0004] Given that power equipment failures and anomalies cannot be artificially created, establishing a substation centralized control station simulation training system is the most effective means of training power grid operators in knowledge and skills. This system simulates integrated monitoring of substation main and auxiliary equipment, as well as communication between the substation centralized control station and the power grid dispatch center, switching operations, and emergency fault handling. This enhances the equipment management capabilities, proactive early warning capabilities, and emergency response capabilities of substation maintenance personnel, providing technical support for a new operation and maintenance management model of "unmanned operation + centralized monitoring" and "equipment owner + general practitioner."

[0005] A substation bay diagram (or simply bay diagram) is a graphical interface describing a specific electrical bay. It includes relevant electrical wiring diagrams, status information of main and auxiliary equipment, measurement data, operation controls, alarm indicator lights, communication status monitoring, and text annotations. The electrical equipment monitored by the bay diagram is mainly divided into primary equipment, secondary equipment, and auxiliary equipment of the substation. Primary equipment includes lines, loads, busbars, transformers, circuit breakers, disconnect switches, busbars, reactors, capacitors, instrument transformers, arc suppression coils, handcarts, and grounding transformers. Secondary equipment includes measurement and control equipment, protection equipment, security control equipment, metering equipment, and AC / DC power supplies. Auxiliary equipment includes fire protection equipment, security equipment, environmental monitoring equipment, video surveillance equipment, and online inspection equipment.

[0006] The core function of a substation centralized control station is the centralized monitoring of the status of equipment in multiple substations. The bay diagram reflects in real time various normal, abnormal, and fault information of each electrical equipment bay. Creating the bay diagram is one of the most important tasks in establishing a substation centralized control station simulation training system.

[0007] Current substation control station simulation systems primarily rely on capturing images or taking photos of the actual production system and then manually redrawing the bay diagrams based on the collected data. A single substation control station manages anywhere from dozens to hundreds of substations, resulting in at least dozens of bay diagrams for each substation. Furthermore, these bay diagrams are highly dependent on the actual primary and secondary electrical equipment and devices, and vary significantly between different substations. This makes manually drawing bay diagrams for substation control stations an extremely arduous task.

[0008] The existing technical document (CN109408960A) provides a method and system for automatically generating main wiring diagrams of smart substations based on SCD. This technical solution can automatically generate main wiring diagrams by parsing the relevant content of IED instances in SCD. However, this solution is not practical when there is no full-system configuration file, i.e., SCD file, especially under the premise of substation simulation training.

[0009] Existing technical document (CN107978007B) provides a method for automatically generating maintenance-free bay diagrams in an integrated control system. This method automatically retrieves the changed information by searching the fixed switch name attributes when the names of remote signaling and telemetry devices change, thus reducing the tedious operation of repeatedly generating bay diagrams in traditional systems. However, this solution relies on the integrated control system and is not suitable for substation simulation training systems. Existing technical document (CN115629754A) provides a method for automatically generating bay diagrams based on template components. This solution designs different bay templates according to the requirements of different bay types and template layouts. The display content and style of the template components can be freely defined according to needs and maintain consistency with the overall style of the bay entity diagrams. However, this solution requires not only creating different bay templates for different situations but also compiling the corresponding remote signaling, telemetry, and remote control point information for each individual device in the database. This necessitates manual data processing based on available equipment ledger information, lacking effective data organization methods.

[0010] In summary, drawing bay diagrams is time-consuming, labor-intensive, and prone to errors, becoming a significant factor hindering the widespread application of substation centralized control station simulation training systems. Therefore, there is an urgent need to research a method for generating simulation bay diagrams for substation centralized control stations to meet the simulation-based practical training needs of substation centralized control station operation and maintenance personnel, helping them quickly master the necessary skills for substation centralized control station operations and improve the inherent safety level of the power grid. Summary of the Invention

[0011] To address the shortcomings of existing technologies, this invention provides a method and system for generating simulation bay diagrams for substation centralized control stations. This method employs relevant information collection and organization, topology analysis, and bay diagram template configuration and definition. It solves the problem that existing substation centralized control station simulation training systems mainly rely on manual drawing of bay diagrams, which is labor-intensive and prone to errors. This method achieves automatic generation of simulation bay diagrams for substation centralized control stations, thus improving efficiency.

[0012] The present invention adopts the following technical solution:

[0013] A method for generating simulation bay diagrams of substation centralized control stations, characterized in that the method includes the following steps:

[0014] Step 1: Extract and generate a simulation equipment-device relationship table from the substation equipment ledger file;

[0015] Step 2: Construct a simulation device information database based on the substation centralized control station information specifications;

[0016] Step 3: Generate a simulation remote signaling point table based on the simulation equipment-device association table and the simulation device information database;

[0017] Step 4: Generate a simulation bay-equipment-device relationship table based on power grid topology analysis;

[0018] Step 5: Establish a general template for the layout of the central control station bay diagram;

[0019] Step 6: Generate the main electrical wiring diagram of the bay based on the topology of the primary wiring diagram of the power grid;

[0020] Step 7: Based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device relationship table, and the simulation remote signaling point table, the relevant areas of the interval diagram remote signaling table are dynamically generated in real time.

[0021] Preferably, in step 1, the simulation equipment-device association table consists of plant name, device type, equipment name, device model, and device serial number;

[0022] The device types include various protection devices, merging units, measurement and control devices, and intelligent terminals related to the secondary system, while the device names specify the names of the devices corresponding to each device type.

[0023] Preferably, in step 2, the specific method for constructing the simulation device information database according to the substation centralized control station information specification includes:

[0024] Based on the information upload specifications of the substation control station, establish a simulation device information table for specific models. The simulation device information table includes the uploaded information such as serial number, type, name, and initial status. The information tables of all simulation devices used by the substation control station are compiled to form the substation control station simulation device information database.

[0025] In the simulation device information table, the type refers to the simulation device pressure plate, signal and light bar; the name is the name marked on each pressure plate, signal and light bar, that is, the name of each protection pressure plate, operation monitoring information and each fault action light bar; the initial state is the initial state of these devices.

[0026] Preferably, in step 3, the specific method for generating the simulation remote signaling point table based on the simulation equipment-device association table and the simulation device information database is as follows:

[0027] According to the simulation equipment-device association table, the corresponding device information is retrieved from the simulation device information database in sequence, and the simulation remote signaling point table is automatically generated based on the information data in the simulation device information table; the remote signaling description is a combination of the equipment, device and remote signaling name;

[0028] Preferably, in step 4, the specific method for generating the simulation bay-equipment-device relationship table based on power grid topology analysis includes:

[0029] Based on the topology of the primary wiring diagram of the power grid, a depth-first search is performed starting from the topology nodes of the corresponding lines, loads, main transformers, buses, capacitors, reactors, and substation equipment. The search ends at the bus node, and the corresponding primary electrical equipment in the bay is found. Then, according to the simulation equipment-device association table, the devices associated with the primary electrical equipment are found, and the simulation bay-equipment-device association table is automatically generated.

[0030] Preferably, the device classification number, i.e., defining a device classification numbering method, specifically includes:

[0031] The last digit of the device classification number indicates the device set number, and the preceding digit indicates the device type. The relationship between the preceding digit of the device number and the device type is as follows:

[0032] 1 is the operating mechanism; 2 is the measurement and control device; 3 is the line protection; 4 is the main transformer protection; 5 is the bus protection; 6 is the circuit breaker protection; 7 is the capacitor protection; 8 is the intelligent terminal; 9 is the merging unit.

[0033] Preferably, the connection relationship of the power grid sequential wiring topology includes:

[0034] By connecting components including lines, loads, transformers, busbars, capacitors, reactors, and substation equipment through switching equipment including circuit breakers and disconnectors, we can abstract them into nodes and branches with interconnected relationships, thus forming network structure data.

[0035] Preferably, the topology depth-first search includes:

[0036] An algorithm for traversing all topological nodes works as follows: When a new node is visited, it is pushed onto a stack; after visiting all associated nodes of the current node, it is popped from the top of the stack. This process is repeated until the stack is empty, meaning all nodes have been visited. Specifically:

[0037] Step 4.1: When accessing a new node, push it onto the stack;

[0038] Step 4.2: Check if the stack is empty. If it is, end the search. If not, proceed to step 4.3.

[0039] Step 4.3: Starting from the top node of the stack, search for all adjacent nodes based on the primary wiring topology of the power grid;

[0040] Step 4.4: After the search is complete, pop the node from the top of the stack;

[0041] Step 4.5: Determine if there are any new nodes among the searched nodes. If not, return to step 4.2. If there are, proceed to step 4.6.

[0042] Step 4.6: Determine whether the new node is a bus node. If it is, return to step 4.2; otherwise, proceed to step 4.7.

[0043] Step 4.7: Add the device containing the new node to the devices associated with the interval, push the new node onto the stack, and return to step 4.2.

[0044] Preferably, in step 5, the method for establishing the control station bay diagram style and layout general template includes:

[0045] The typical wiring methods of substation control bays are analyzed and summarized, that is, a general template for bay diagrams of each voltage level and equipment type is drawn according to the lines, main transformers, busbars, capacitors, reactance, and the power equipment used. The general template includes areas such as electrical wiring diagrams, measurement display areas, signal display areas, pressure plate arrangement areas, remote signaling light signs for measurement and control devices, first set of protection light signs, and second set of protection light signs. The general template defines the area number, device classification number, and zoning display style for each area, forming a three-segment parameter number enclosed in brackets. Then, according to these parameter numbers, a drawing area for a bay diagram is assigned to each number.

[0046] Preferably, the specific method for defining the area number, device classification number, and partition display style for each area and forming a three-segment parameter number enclosed in brackets is as follows:

[0047] Set a three-part parameter number enclosed in parentheses, where the three parts of the parameter include:

[0048] Parameter 1 is the area number; Parameter 2 is the classification number of the devices contained in the area; Parameter 3 is the remote signaling display style of the area.

[0049] Among them, parameter 1 is the area number, which is defined as follows: 1 represents the wiring diagram display area, 2 represents the pressure plate arrangement area, 3 represents the signal display area, 4 represents the photon display area, and 5 represents the measurement value display area.

[0050] Parameter 2 is the device classification number contained in the region, that is, the device classification number as described in claim 9;

[0051] Parameter 3 is the regional remote signaling display style. This parameter is defined as follows: 0 is the default two-column display style; 1 is a single-column display, that is, remote signaling status and remote signaling description are in one category; 2 is two columns, that is, remote signaling status and remote signaling description are in one column each; 3 is three columns, that is, serial number, remote signaling status and remote signaling description are in one column each.

[0052] Preferably, in step 6, generating the main electrical wiring of the bay based on the primary wiring diagram of the power grid includes:

[0053] Based on the primary wiring diagram of the power grid and the topological connection relationship, a depth-first search is performed starting from the topological nodes of the corresponding lines, loads, main transformers, buses, capacitors, reactors, and service transformers to identify the connection relationship between the bay equipment and the bus. After copying from the primary wiring diagram of the power grid, the bay electrical wiring diagram is automatically scaled according to the layout size. The corresponding measurement values ​​of the bay equipment are obtained from the simulation telemetry table according to the searched bay equipment and displayed in the measurement display area.

[0054] Preferably, in step 7, the method for dynamically generating the relevant areas of the interval diagram remote signaling table in real time based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device relationship table, and the simulation remote signaling point table is as follows:

[0055] Based on the device classification number of parameter 2 in the three-segment parameter number defined in the general template of the interval diagram, the equipment and devices are obtained from the specific interval simulation interval-equipment-device association table. The display content of each area, including the signal display area, pressure plate arrangement area, telemetry and control device telemetry light sign, first set of protection light sign, and second set of protection light sign, is obtained in real time from the simulation remote signaling point table through the equipment and device information. Finally, a complete interval diagram is generated.

[0056] This application also protects a simulation bay diagram generation system for the aforementioned substation centralized control station, comprising a simulation equipment-device association table extraction and generation module, a simulation device information database construction module, a simulation remote signaling point table generation module, a bay-equipment-device association table generation module, a bay diagram style and layout general template establishment module, a bay electrical main wiring diagram generation module, and a bay diagram remote signaling table related area generation module, characterized in that:

[0057] The module for extracting and generating simulation equipment-device relationship tables extracts and generates simulation equipment-device relationship tables from the equipment ledger of the substation control center.

[0058] The simulation device information database construction module constructs a simulation device information database based on the substation centralized control station information specifications.

[0059] The simulation remote signaling point table generation module generates a simulation remote signaling point table based on the simulation equipment-device association table and the simulation device information database.

[0060] The module for generating a bay-equipment-device relationship table generates a simulated bay-equipment-device relationship table based on power grid topology analysis.

[0061] The module for creating interval diagram styles and layout templates for centralized control stations establishes these templates.

[0062] The bay electrical main wiring diagram generation module generates the bay electrical main wiring diagram based on the topology of the primary wiring diagram of the power grid.

[0063] The interval diagram remote signaling table related area generation module dynamically generates the interval diagram remote signaling table related areas in real time based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device relationship table, and the simulation remote signaling point table.

[0064] The beneficial effects of the present invention are that, compared with the prior art, the beneficial effects of the present invention through the above technical solution include at least the following:

[0065] 1) This invention proposes a method for generating simulation bay diagrams for substation centralized control stations. Starting from the goal of automatically generating bay diagrams, it constructs simulation device information tables for different types of devices, thereby forming a simulation device information database. Then, it adopts a topology analysis + bay graphic template + rule method to solve the problem of automatic bay diagram generation and greatly improve the efficiency of simulation modeling for substation centralized control stations.

[0066] 2) The biggest difference between the technical solution proposed in this application and the existing technical solutions is that it can automatically generate bay diagrams in the application scenario of substation centralized control station simulation training system without the need for a whole station system configuration file or without relying on the integrated response control system.

[0067] 3) Compared with existing technical solutions, this application significantly optimizes the information extraction and summarization method of substation centralized control simulation device, and forms an information table of substation centralized control simulation device. Based on this, the template configuration and definition of substation centralized control station bay diagram are given. Attached Figure Description

[0068] Figure 1 This is a primary wiring diagram of a 220kV simulated substation power grid;

[0069] Figure 2 It is a general template for 220kV line bay diagrams;

[0070] Figure 3 It is an interval diagram generated based on a general template;

[0071] Figure 4 The flowchart is automatically generated from the interval diagram;

[0072] Figure 5 This is a flowchart of the process for analyzing the topology of line bays and associating equipment.

[0073] Figure 6 This is the wiring diagram for the main electrical wiring area;

[0074] Figure 7 This is a diagram of the measurement display area. Detailed Implementation

[0075] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0076] This method generates simulation interval diagrams based on a substation centralized control station simulation training system. This simulation system includes simulation equipment that simulates equipment within a substation. Within this simulation system, the components of each simulated device, their actions, and equipment faults can be simulated and displayed on the simulation system panel, which includes pressure plates, signals, and photonic signs.

[0077] A method for generating simulation bay diagrams of substation centralized control stations, characterized in that the method includes the following steps:

[0078] Step 1: Extract and generate a simulation equipment-device relationship table from the equipment ledger of the substation control center;

[0079] The information extracted from the equipment ledger of the substation control station includes: equipment attribute information such as device type, equipment name, Chinese description, device model, manufacturer and country of origin of the simulation equipment. The extracted information from the equipment ledger of the substation control station is shown in Table 1.

[0080] The simulation equipment-device association table consists of plant name, device type, equipment name, device model and device set number. The simulation equipment-device association is represented as shown in Table 2.

[0081] The device type indicates the function and classification of the equipment in the table, including line protection, measurement and control devices, intelligent terminals, merging units, operating structures, transformer protection, bus protection, load protection, and capacitors.

[0082] Table 1 Equipment Ledger for Substation Central Control Station

[0083]

[0084] Table 2. Examples of Simulation Equipment-Device Relationships

[0085]

[0086]

[0087] Step 2: Construct a simulation device information database based on the substation centralized control station information specifications;

[0088] The specific method for constructing a simulation device information database based on the substation centralized control station information specifications includes:

[0089] Based on the information upload specifications of the substation control station and the equipment component information on the simulation system panel, a simulation device information table for each specific model of simulation equipment is manually compiled. The simulation device information table includes the uploaded information such as serial number, type, name, and initial status. The devices used by the substation control station are summarized in sequence to form the substation control station simulation device information database. Taking equipment PCS-931 as an example, its simulation device information is shown in Table 3.

[0090] In the simulation device information table, the type refers to the pressure plate, signal and light bar on the simulation system panel; the name is the name marked on each pressure plate, signal and light bar, that is, the component, component action or equipment failure of the simulated equipment in the simulation system corresponding to the device; the initial state is the initial state of these devices.

[0091] Table 3. Examples of PCS-931 Simulation Device Information

[0092]

[0093]

[0094] Step 3: Generate a simulation remote signaling point table based on the simulation equipment-device association table and the simulation device information database;

[0095] The specific method for generating the simulation remote signaling point table based on the simulation equipment-device association table and the simulation device information database is as follows:

[0096] According to the simulation equipment-device association table, the corresponding device information is retrieved from the simulation device information database in sequence. The information data in the simulation device information table is aggregated to automatically generate the simulation remote signaling point table. The remote signaling description is a combination of equipment, device and remote signaling name, used to describe the remote signaling points in the interval diagram.

[0097] The simulation remote signaling point table includes the following information: remote signaling point serial number, remote signaling point name, remote signaling point type, device model, device set number, equipment name, plant / station name, initial status, and remote signaling description;

[0098] The remote signaling point name, remote signaling type, and initial status are the names, types, and initial statuses listed in the simulation device information table;

[0099] The device model, device set number, equipment name, and plant name are derived from the corresponding items in the simulation device-device relationship table;

[0100] The remote signaling description defines the role of each component at each remote signaling point in the simulation equipment of the simulation system.

[0101] The simulated remote signaling point table is shown in Table 4:

[0102] Table 4 Examples of Simulated Remote Signaling Points

[0103]

[0104]

[0105] Step 4: Generate a simulation bay-equipment-device relationship table based on power grid topology analysis;

[0106] Specific methods for generating simulation bay-equipment-device relationship tables based on power grid topology analysis include:

[0107] According to such Figure 1 The topology connection relationship of the primary wiring diagram of the power grid shown is searched in depth first from the topology nodes of the corresponding lines, loads, main transformers, buses, capacitors and reactors, and the substation equipment used. The search ends at the bus node. The corresponding primary electrical equipment in the bay is found. Then, according to the simulation equipment-device association table, the device associated with the primary electrical equipment is found. The information in the table is aggregated and the simulation bay-equipment-device association table is automatically generated.

[0108] The information in the simulation bay-equipment-device relationship table includes: bay diagram name, plant name, equipment name, device type, device model, device set number, and device classification number. According to the above rules, the 220kV Simulation Qing Line simulation bay-equipment-device relationship table is shown in Table 5.

[0109] Table 5. Example of the relationship between simulation bay, equipment, and device in 220kV simulated power line.

[0110]

[0111]

[0112] The device classification number, that is, defining a device classification numbering method, is as follows:

[0113] The last digit of the device classification number indicates the device set number, and the preceding digit indicates the device type. The relationship between the preceding digit of the device number and the device type is as follows:

[0114] 1 is the operating mechanism; 2 is the measurement and control device; 3 is the line protection; 4 is the main transformer protection; 5 is the bus protection; 6 is the circuit breaker protection; 7 is the capacitor protection; 8 is the intelligent terminal; 9 is the merging unit.

[0115] Using this device classification number ensures that the device information contained in the general template of the bay diagram is universal, so that the device information stored in the general template of the bay diagram is independent of the specific model of the device; numbering example: 11-first set of operating mechanism, 31-first set of line protection, 91-first set of merging unit.

[0116] The connection relationships of the power grid sequential wiring topology include:

[0117] By connecting components including lines, loads, transformers, busbars, capacitors, reactors, and substation equipment through switching equipment including circuit breakers and disconnectors, we can abstract them into nodes and branches with interconnected relationships, thus forming network structure data.

[0118] Preferably, the topology depth-first search includes:

[0119] An algorithm for traversing all topological nodes works as follows: when a new node is visited, it is pushed onto a stack; after visiting all associated nodes of the current node, it is popped from the top of the stack. This process is repeated until the stack is empty, meaning all nodes have been visited. The specific algorithm flow is as follows: Figure 5 As shown:

[0120] Step 4.1: When accessing a new node, push it onto the stack;

[0121] Step 4.2: Check if the stack is empty. If it is, end the search. If not, proceed to step 4.3.

[0122] Step 4.3: Starting from the top node of the stack, search for all adjacent nodes based on the primary wiring topology of the power grid;

[0123] Step 4.4: After the search is complete, pop the node from the top of the stack;

[0124] Step 4.5: Determine if there are any new nodes among the searched nodes. If not, return to step 4.2. If there are, proceed to step 4.6.

[0125] Step 4.6: Determine whether the new node is a bus node. If it is, return to step 4.2; otherwise, proceed to step 4.7.

[0126] Step 4.7: Add the device containing the new node to the devices associated with the interval, push the new node onto the stack, and return to step 4.2.

[0127] Step 5: Establish a general template for the layout of the central control station bay diagram;

[0128] The typical wiring methods of substation control bays are analyzed and summarized, that is, a general template for bay diagrams of each voltage level and equipment type is drawn according to the lines, main transformers, busbars, capacitors, reactance, and the power equipment used. The general template includes areas such as electrical wiring diagrams, measurement display areas, signal display areas, pressure plate arrangement areas, remote signaling light signs for measurement and control devices, first set of protection light signs, and second set of protection light signs. The general template defines the area number, device classification number, and zoning display style for each area, forming a three-segment parameter number enclosed in brackets. Then, according to these parameter numbers, a drawing area for a bay diagram is assigned to each number.

[0129] Set a three-segment parameter number enclosed in parentheses, i.e., (area number: device category number: zone display style), such as (4:21:0), (2:0:0), (3:0:0); these three segments include:

[0130] Among them, parameter 1 is the area number, which is defined as follows: 1 represents the wiring diagram display area, 2 represents the pressure plate arrangement area, 3 represents the signal display area, 4 represents the photon display area, and 5 represents the measurement value display area.

[0131] Parameter 2 is the device classification number contained in the region, that is, the device classification number as described in claim 9;

[0132] Parameter 3 is the regional remote signaling display style. This parameter is defined as follows: 0 is the default two-column display style; 1 is a single-column display, that is, remote signaling status and remote signaling description are in one category; 2 is two columns, that is, remote signaling status and remote signaling description are in one column each; 3 is three columns, that is, serial number, remote signaling status and remote signaling description are in one column each.

[0133] Based on the above rules, the general template for 220kV line bay diagrams is as follows: Figure 2 As shown.

[0134] Step 6: Generate the main electrical wiring diagram of the bay based on the topology of the primary wiring diagram of the power grid;

[0135] The process of generating the main electrical wiring of the bay based on the topology of the primary wiring diagram of the power grid includes:

[0136] Based on the primary wiring diagram of the power grid and the topological connections, a depth-first search is performed, starting from the corresponding lines, loads, main transformers, busbars, capacitors, reactors, and auxiliary transformers, to identify the connection relationships between bay equipment and busbars. The bay electrical wiring diagram is then automatically scaled according to the layout size after being copied from the primary wiring diagram. Figure 6 As shown; according to the searched interval devices, the corresponding measurement values ​​are obtained from the simulation telemetry table and displayed in the measurement display area, such as... Figure 7 As shown.

[0137] Step 7: Based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device relationship table, and the simulation remote signaling point table, the relevant areas of the interval diagram remote signaling table are dynamically generated in real time.

[0138] Based on parameter 2, the device classification number, defined in the three-segment parameter numbering of the interval diagram general template, the equipment and devices are retrieved from the specific interval simulation interval-equipment-device association table. Using the equipment and device information, the display content of each area, including the signal display area, pressure plate arrangement area, telemetry and control device telemetry light bar, first set of protection light bar, and second set of protection light bar, is dynamically generated from the simulation remote signaling point table in real time. Finally, a complete interval diagram is generated, such as... Figure 3 As shown.

[0139] This application also protects a simulation bay diagram generation system for the aforementioned substation centralized control station, comprising a simulation equipment-device association table extraction and generation module, a simulation device information database construction module, a simulation remote signaling point table generation module, a bay-equipment-device association table generation module, a bay diagram style and layout general template establishment module, a bay electrical main wiring diagram generation module, and a bay diagram remote signaling table related area generation module, characterized in that:

[0140] The module for extracting and generating simulation equipment-device relationship tables extracts and generates simulation equipment-device relationship tables from the equipment ledger of the substation control center.

[0141] The simulation device information database construction module constructs a simulation device information database based on the substation centralized control station information specifications.

[0142] The simulation remote signaling point table generation module generates a simulation remote signaling point table based on the simulation equipment-device association table and the simulation device information database.

[0143] The module for generating a bay-equipment-device relationship table generates a simulated bay-equipment-device relationship table based on power grid topology analysis.

[0144] The module for creating interval diagram styles and layout templates for centralized control stations establishes these templates.

[0145] The bay electrical main wiring diagram generation module generates the bay electrical main wiring diagram based on the topology of the primary wiring diagram of the power grid.

[0146] The interval diagram remote signaling table related area generation module dynamically generates the interval diagram remote signaling table related areas in real time based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device relationship table, and the simulation remote signaling point table.

[0147] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0148] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0149] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0150] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.

[0151] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for generating simulation bay diagrams for substation centralized control stations, characterized in that, The method includes: Step 1: Extract and generate a simulation equipment-device association table from the substation equipment ledger file; the simulation equipment-device association table consists of the substation name, device type, equipment name, device model, and device set number; Step 2: Establish a simulation device information table for specific models according to the information upload specifications of the substation control station. The simulation device information table includes serial number, type, name and initial status. Summarize the information tables of all simulation devices used by the substation control station to form a simulation device information database for the substation control station. Step 3: According to the simulation equipment-device association table, retrieve the corresponding device information from the simulation device information database in sequence, and automatically generate the simulation remote signaling point table based on the information data in the simulation device information table; the remote signaling description is a combination of the equipment, device and remote signaling name; Step 4: Based on the topology connection relationship of the primary wiring diagram of the power grid, perform a depth-first search starting from the topology nodes of the corresponding lines, loads, main transformers, buses, capacitors, reactors, and substation equipment, and end the search at the bus node. Find the corresponding primary electrical equipment in the bay, and then find the device associated with the primary electrical equipment according to the simulation equipment-device association table, and automatically generate the simulation bay-equipment-device association table. Step 5: Establish a general template for the layout and style of the central control station bay diagram; including: The typical wiring methods of substation control bays are analyzed and summarized, and a general template for bay diagrams of various voltage levels and equipment types is drawn according to lines, main transformers, busbars, capacitors, reactance, and used electrical equipment. The general template includes areas such as electrical wiring diagrams, measurement display areas, signal display areas, pressure plate arrangement areas, remote signaling light plates for measurement and control devices, first set of protection light plates, and second set of protection light plates. The general template defines area numbers, device classification numbers, and zoning display styles for each area, forming a three-segment parameter number enclosed in brackets. Then, based on these parameter numbers, a drawing area for a bay diagram is assigned to each number. The three parameters include: parameter 1 is the area number; parameter 2 is the classification number of the devices contained in the area; and parameter 3 is the remote signaling display style of the area. Step 6: Generate the main electrical wiring diagram of the bay based on the topology of the primary wiring diagram of the power grid; including: Based on the primary wiring diagram of the power grid and the topological connection relationship, a depth-first search is performed starting from the topological nodes of the corresponding lines, loads, main transformers, busbars, capacitors, reactors, and service transformers to identify the connection relationship between the bay equipment and the busbars. The bay electrical wiring diagram is automatically generated by copying from the primary wiring diagram of the power grid and scaling it according to the layout size. The corresponding measurement values ​​of the bay equipment are obtained from the simulation telemetry table according to the searched bay equipment and displayed in the measurement display area. Step 7: Based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device relationship table, and the simulation remote signaling point table, dynamically generate the relevant areas of the interval diagram remote signaling table in real time; including: Based on the device classification number of parameter 2 in the three-segment parameter number defined in the general template of the interval diagram, the equipment and devices are obtained from the specific interval simulation interval-equipment-device association table. The display content of each area, including the signal display area, pressure plate arrangement area, telemetry and control device telemetry light sign, first set of protection light sign, and second set of protection light sign, is obtained in real time from the simulation remote signaling point table through the equipment and device information. Finally, a complete interval diagram is generated.

2. The method for generating a simulation bay diagram of a substation centralized control station according to claim 1, characterized in that: In step 1, the information extracted from the substation equipment ledger file includes device type, equipment name, device model, and device serial number.

3. The method for generating a simulation bay diagram of a substation centralized control station according to claim 2, characterized in that: In step 1, the device type includes various protection devices, merging units, measurement and control devices, and intelligent terminals related to the secondary system, and the device name specifies the device name corresponding to each device type.

4. The method for generating a simulation bay diagram of a substation centralized control station according to claim 1, characterized in that: In the simulation device information table, the type refers to the simulation device pressure plate, signal and light bar; the name is the name marked on each pressure plate, signal and light bar, that is, the name of each protection pressure plate, operation monitoring information and each fault action light bar; the initial state is the initial state of these devices.

5. The method for generating a simulation bay diagram of a substation centralized control station according to claim 1, characterized in that: The device classification number, that is, defining a device classification numbering method, is as follows: The last digit of the device classification number indicates the device set number, and the preceding digit indicates the device type. The relationship between the preceding digit of the device number and the device type is as follows: 1 is the operating mechanism; 2 is the measurement and control device; 3 is the line protection; 4 is the main transformer protection; 5 is the bus protection; 6 is the circuit breaker protection; 7 is the capacitor protection; 8 is the intelligent terminal; 9 is the merging unit.

6. The method for generating a simulation bay diagram of a substation centralized control station according to claim 1, characterized in that: The connection relationships of the power grid sequential wiring topology include: By connecting components including lines, loads, transformers, busbars, capacitors, reactors, and power equipment through switching equipment including circuit breakers and disconnectors, the network structure data is abstracted into nodes and branches with interconnected relationships. The network structure data refers to the connection relationships between various devices in the power grid, specifically including the topology connection point numbers of lines, loads, transformers, buses, capacitors, reactors, and the substation equipment used.

7. The method for generating a simulation bay diagram of a substation centralized control station according to claim 1, characterized in that: A depth-first search is performed starting from the topology nodes of the corresponding lines, loads, main transformers, busbars, capacitors, reactors, and substation equipment, as detailed below: Step 4.1: When accessing a new node, push it onto the stack; Step 4.2: Check if the stack is empty. If it is, end the search. If not, proceed to step 4.

3. Step 4.3: Starting from the top node of the stack, search for all adjacent nodes based on the primary wiring topology of the power grid; Step 4.4: After the search is complete, pop the node from the top of the stack; Step 4.5: Determine if there are any new nodes among the searched nodes. If not, return to step 4.

2. If there are, proceed to step 4.

6. Step 4.6: Determine whether the new node is a bus node. If it is, return to step 4.2; otherwise, proceed to step 4.

7. Step 4.7: Add the device containing the new node to the devices associated with the interval, push the new node onto the stack, and return to step 4.

2.

8. The method for generating a simulation bay diagram of a substation centralized control station according to claim 1, characterized in that: In step 5, parameter 1 is the area number, which is defined as follows: 1 represents the wiring diagram display area, 2 represents the pressure plate arrangement area, 3 represents the signal display area, 4 represents the photon display area, and 5 represents the measurement value display area. Parameter 2 is the device classification number contained in the region, that is, the device classification number as described in claim 5; Parameter 3 is the regional remote signaling display style. This parameter is defined as follows: 0 is the default two-column display style; 1 is a single-column display, that is, remote signaling status and remote signaling description are in one category; 2 is two columns, that is, remote signaling status and remote signaling description are in one column each; 3 is three columns, that is, serial number, remote signaling status and remote signaling description are in one column each.

9. An automatic generation system for simulation bay diagrams of a substation control station using the method for generating simulation bay diagrams of any one of claims 1-8, comprising a simulation equipment-device association table extraction and generation module, a simulation device information database construction module, a simulation remote signaling point table generation module, a bay-equipment-device association table generation module, a bay diagram style and layout general template establishment module, a bay electrical main wiring diagram generation module, and a bay diagram remote signaling table related area generation module, characterized in that... : The simulation equipment-device association table extraction and generation module extracts and generates a simulation equipment-device association table from the equipment ledger of the substation control station; the simulation equipment-device association table consists of the substation name, device type, equipment name, device model, and device set number; The simulation device information database construction module establishes a specific model of simulation device information table according to the information upload specifications of the substation control station. The simulation device information table includes serial number, type, name and initial status. The information tables of all simulation devices used by the substation control station are summarized to form the substation control station simulation device information database. The simulation remote signaling point table generation module retrieves the corresponding device information from the simulation device information database according to the simulation device-device association table, and automatically generates the simulation remote signaling point table based on the information data in the simulation device information table; the remote signaling description is a combination of the device, equipment, and remote signaling name; The bay-equipment-device association table generation module performs a depth-first search based on the topology connection relationship of the primary wiring diagram of the power grid, starting from the topology nodes of the corresponding lines, loads, main transformers, buses, capacitors and reactors, and the substation equipment in use, and ends at the bus node. It finds the corresponding bay electrical primary equipment, and then finds the device associated with the electrical primary equipment according to the simulation equipment-device association table, and automatically generates the simulation bay-equipment-device association table. The module for establishing general templates for bay diagram styles and layouts in substation control stations includes: analyzing and summarizing typical wiring methods for substation control station bays, i.e., drawing general templates for bay diagrams of various voltage levels and equipment types according to lines, main transformers, busbars, capacitors, reactance, and used electrical equipment; the general template includes areas such as electrical wiring diagrams, measurement display areas, signal display areas, pressure plate arrangement areas, remote signaling light signs for measurement and control devices, the first set of protection light signs, and the second set of protection light signs; the general template defines area numbers, device classification numbers, and partition display styles for each area, forming a three-segment parameter number enclosed in brackets; then, based on these parameter numbers, a drawing area for a bay diagram is assigned to each number; The three parameters include: parameter 1 is the area number; parameter 2 is the classification number of the devices contained in the area; and parameter 3 is the remote signaling display style of the area. The bay electrical main wiring diagram generation module generates the bay electrical main wiring diagram based on the topology of the primary wiring diagram of the power grid. This includes: performing a depth-first search based on the topology of the primary wiring diagram of the power grid, starting from the topology nodes of the corresponding lines, loads, main transformers, buses, capacitors, reactors, and service transformers; identifying the connection relationship between the bay equipment and the bus; copying the diagram from the primary wiring diagram of the power grid and automatically scaling it according to the layout size to generate the bay electrical wiring diagram; and obtaining the corresponding measurement values ​​from the simulation telemetry table according to the bay equipment found and displaying them in the measurement display area. The interval diagram remote signaling table related area generation module dynamically generates the relevant areas of the interval diagram remote signaling table in real time based on the parameter information defined in the interval diagram general template, the simulation interval-equipment-device association table, and the simulation remote signaling point table. This includes: obtaining the equipment and devices from the specific interval simulation interval-equipment-device association table based on parameter 2, the device classification number, in the three-segment parameter number defined in the interval diagram general template; obtaining and dynamically generating the display content of each area, including the signal display area, pressure plate arrangement area, remote signaling light sign of the measurement and control device, the first set of protection light sign, and the second set of protection light sign, based on the equipment and device information from the simulation remote signaling point table; and finally generating a complete interval diagram.

10. An electronic device based on a substation centralized control station simulation bay diagram generation method, operating according to any one of claims 1-8, characterized in that: It includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; Memory, used to store computer programs; A processor is used to execute a program stored in memory to implement the steps of the method for generating a simulation bay diagram based on a substation central control station as described in any one of claims 1-8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When executed by a processor, the program implements a method for generating simulation bay diagrams for substation control stations as described in any one of claims 1-8.

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