Cloud simulation training system suitable for integration of master station and transformer substation of centralized control system

Abstract

The invention discloses a cloud simulation training system suitable for integration of a master station and a transformer substation of a centralized control system. The cloud simulation training system comprises a monitoring service simulation unit, a power transformation operation and maintenance simulation unit and an automatic operation and maintenance training unit. The monitoring service simulation unit is used for realizing regional power grid operation mode adjustment, fault point setting and training teaching plan making based on a graph-analog-digital integrated simulation technology and a containerized scene creation technology; the power transformation operation and maintenance simulation unit is used for simulating primary equipment, secondary equipment and a monitoring system based on a virtual reality 3D technology, a graphical modeling technology and a load flow calculation technology; the automatic operation and maintenance training unit is used for extracting data of a typical transformer substation from an actual production operation system and truly simulating an automatic operation and maintenance scene of regional power transformation equipment; the working quality and efficiency of simulation training are improved.

Description

Technical Field

[0001] The present invention relates to the field of training simulation technology, and specifically to a cloud-based simulation training system suitable for integrating a central control system master station and a substation. Background Art

[0002] In recent years, State Grid Corporation has vigorously promoted the optimization of operation and maintenance models and the construction of a new generation of substation centralized control and monitoring systems, effectively solving key problems such as insufficient equipment monitoring precision, insufficient information means, and insufficient digital support capabilities, greatly improving the efficiency of monitoring and operation and maintenance. With the implementation of the localization of 500kV substations and the requirements for system practicality, it is urgent for operators to master the use of the system. However, the current centralized control system is an online real-time operation system, lacking training and exercise methods for business systems such as daily monitoring, switching operations, defect discovery, and fault handling for on-duty operators, and lacking a practice environment for patrol inspections, abnormal handling, and safety measures for substation operation and maintenance personnel. Especially in the current context of the integration of operation and monitoring, there is a lack of full-process collaborative exercise methods for operation and maintenance and monitoring professionals. In the field of traditional centralized control system training simulation, substation simulation is generally the main focus, and joint simulation with centralized control master stations and automation system operation and maintenance is less involved. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a cloud-based simulation training system suitable for the integrated control system master station and substation, integrating the centralized control master station simulation, substation simulation, and automated operation and maintenance training to solve the problems existing in the prior art.

[0004] Technical solution: The cloud-based simulation training system for the integrated control system master station and substation described in the present invention includes: a monitoring business simulation unit, a substation operation and maintenance simulation unit, and an automated operation and maintenance training unit; the monitoring business simulation unit is used to adjust the regional power grid operation mode, set fault points, and prepare training lesson plans based on the integrated simulation technology of graph, analog, and digital, and the containerized scenario creation technology, and to carry out training on the recognition of power grid operation characteristics, fault and abnormal operation condition processing; including: a simulation model parameter synchronization module, a simulation scenario creation module, a power system simulation module, and an integrated training evaluation module; the substation operation and maintenance simulation unit is used to realize the primary equipment based on virtual reality 3D technology, graphical modeling technology, and flow calculation technology. , secondary equipment and monitoring system; realize high-precision and realistic virtual reproduction of substations, and carry out equipment operation recognition, inspection, switching operation and accident handling training, including: primary equipment simulation module, secondary equipment simulation module, simulation logic operation module, 3D human-computer interaction module; the automated operation and maintenance training unit is used to extract data of typical substations from actual production and operation systems, and truly simulate the automated operation and maintenance scenarios of regional substation equipment. According to the number of trainees' machines, the typical substation data is copied into multiple substation data and assigned to different responsibility areas. According to the trainees' responsibility areas, only the trainees are allowed to operate the substation data under the responsibility area, including: demonstration training module, simulation model management module, lesson plan maintenance module, and real-time examination module.

[0005] Furthermore, the simulation model parameter synchronization module is used to maintain parameters through model mapping. The centralized control system establishes a mapping relationship between the scheduling side device ID and the centralized control device ID, and the scheduling side periodically synchronizes the calculation parameters of the device; the simulation scenario creation module is used to customize the training event sequence, preset the triggering method of the event sequence during the lesson plan production process, and set the corresponding executors, trigger time and preceding events respectively.

[0006] Furthermore, the power system simulation module is used to simulate the power system steady state, relay protection and system simulation, and data acquisition, providing comprehensive simulation functions for the power system, including: simulation of the primary system and simulation of the secondary system; the integrated training evaluation module is used to compare the operation record trace records with the reference answers of the training examination; among them, the operation traces include the full business trace records of monitoring business simulation, substation operation and maintenance simulation, and automated operation and maintenance training.

[0007] Furthermore, the primary equipment simulation module is used to simulate the primary equipment, including: transformers, circuit breakers, busbars, bus couplers, sectioning, disconnectors, grounding switches, lightning arresters, reactors, capacitors, voltage transformers, current transformers, and pole towers; the secondary equipment simulation module is used to simulate the secondary equipment; including: protection devices, measurement and control devices, intermediate relays, circuit breakers, pressure plates, transfer switches, buttons, LED displays, automatic devices, central signals, and signal lights.

[0008] Furthermore, the simulation logic operation module is composed of protection and power flow models, which is used to analyze the principles of the protection device, model the protection device in a digital way, realize the mathematical model of the input and output of the internal components of the protection device, and construct the correlation between the model parameters, so as to simulate the action characteristics of the protection device; the three-dimensional human-computer interaction module is provided with rendering function by the three-dimensional engine, and the rendering data is composed of static three-dimensional models and dynamic three-dimensional models.

[0009] Furthermore, the static basic model meets the BIM results of the design institute specified by State Grid Corporation and is constructed through point cloud and drawings: first, the spatial coordinate reference of the substation scene and primary and secondary equipment is formed through point cloud data, and then it is corrected through design drawings, and the device is assembled using standardized library models combined with on-site photos.

[0010] Furthermore, the demonstration training module includes video demonstration training and practical simulation training. The video demonstration training demonstrates the use of common system maintenance tools and system exception handling in the form of network video streams or video files; the practical simulation training function improves students' ability to master a certain operation function by allowing students to complete actual operation questions in the question bank.

[0011] Furthermore, the model management module is used to manage the database models, graphic files and configuration document data necessary for the operation of the centralized control system and the training system; extract typical substation model data from the production operation environment, create multiple training substation model data, isolate the substation data operated by different trainees through the system responsibility area, and restore the examination system model data to the initial state before the real-time examination.

[0012] Furthermore, the lesson plan maintenance module is used to maintain training videos and test question data, including recording videos and question bank maintenance; the real-time examination module includes written examinations and practical operation examinations, and is used to implement simultaneous online examinations on multiple student workstations, including one instructor terminal and multiple student terminals.

[0013] Furthermore, the instructor side is used to create and start new exams and monitor the exams in real time; the student side is responsible for reminding the examinees of real-time exam questions, uploading the current exam progress status, and collecting and uploading answers.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: At the same time, in order to meet the needs of the joint exercise of operation and monitoring, it provides a joint simulation of monitoring services and substation operation and maintenance services, and realizes the full-process integrated in-depth exercise of equipment monitoring, business contact, on-site fault finding and handling, and closed-loop reporting. By setting up a joint exercise lesson plan for monitoring and operation and maintenance integration, the linkage of operation and monitoring operation scenarios is realized, including interface linkage, operation linkage, signal linkage, etc., and the integration of two-dimensional monitoring and three-dimensional patrol business scenarios is realized, providing a more intuitive and vivid observation of the entire process of fault occurrence and fault handling for operation and monitoring personnel, and improving the quality and efficiency of simulation training. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a system schematic diagram of the present invention. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0017] like Figure 1 As shown, the embodiment of the present invention provides a cloud-based simulation training system suitable for the integrated control system master station and substation, supports the construction of full-service training simulation applications of the integrated control system with operation and monitoring, and builds a multi-theme training and exercise scenario integrating monitoring business simulation, substation operation and maintenance simulation, and automated operation and maintenance training based on the construction results of the substation centralized monitoring system and provincial nodes. The details are as follows: Monitoring business simulation is used to achieve simulation model parameter synchronization, simulation scenario creation, power system simulation, and integrated training and evaluation function construction. The specific modules are as follows: The simulation model parameter synchronization maintains parameters through model mapping. The centralized control system establishes a mapping relationship between the dispatching side device ID and the centralized control device ID. The dispatching side periodically synchronizes the calculation parameters of the equipment. Specific parameters include: line (resistance, reactance, susceptance, current limit), main transformer (rated capacity, rated voltage, tap type, resistance, reactance), capacitor (rated capacity, rated voltage), STATCOM (rated capacity, rated voltage). The monitoring side synchronously updates relevant parameters according to the ID mapping relationship, and performs manual operation and maintenance for network modeling and state estimation.

[0018] Simulation scene creation is through customizing training event sequence. The triggering method of event sequence is preset in the process of lesson plan making. We can set the corresponding executors, trigger time and pre-events respectively to make the event sequence logical and flexible. In setting events, system control class (such as scene management, user management, authority configuration, etc.), training teaching aid class (such as section management, lesson plan management, event list, auxiliary lesson plan, examination evaluation, etc.), training control class (such as model management, training start and stop, training control, etc.), equipment inquiry class (such as various information status acquisition), equipment operation class (such as equipment fault setting, abnormal setting, protection fault setting, etc.), information interaction class (such as training information interaction, operation comprehensive order, release instruction, etc.) events are all included in the management of event sequence.

[0019] Power system simulation includes power system steady-state simulation, relay protection simulation, data acquisition simulation, etc., providing comprehensive simulation functions for the power system, including simulation of the primary system and the secondary system.

[0020] The integrated training evaluation function is based on the operation record trace record, which is compared with the reference answers of the training exam. The operation trace includes the full business trace record of monitoring business simulation, substation operation and maintenance simulation and automated operation and maintenance training, realizing the integrated evaluation of the full business training process.

[0021] Substation operation and maintenance simulation is based on virtual reality 3D technology, graphical modeling technology, power flow calculation and other computer technologies to simulate primary equipment, secondary equipment and monitoring systems, etc.; it can achieve high-precision and realistic virtual reproduction of substations, and carry out training and exercises such as equipment operation cognition, inspection, switching operation and accident handling. It mainly includes primary equipment simulation, secondary equipment simulation, simulation logic operation, and three-dimensional human-computer interaction function construction. The specific modules are as follows: The objects of primary equipment simulation include transformers, circuit breakers, busbars, busbars, sections, disconnectors, grounding switches, lightning arresters, reactors, capacitors, voltage transformers, current transformers, poles, etc. The operation of primary equipment can be carried out in the monitoring system or on-site.

[0022] Secondary equipment simulation protection device, measurement and control device, intermediate relay, circuit breaker, pressure plate, transfer switch, button, LED display, automatic device, central signal, signal light, etc. Realize logic circuit simulation for secondary equipment.

[0023] The simulation logic operation module is mainly composed of protection and power flow models. By analyzing the principle of the protection device, the protection device is modeled in a digital way, the mathematical model of the input and output of the internal components of the protection device is realized, and the correlation between the model parameters is constructed to simulate the action characteristics of the protection device. In combination with the associated signal of the primary equipment, the twin relationship between the signals between the simulation system and the real-time system is established to trigger the corresponding signal action in the protection signal table of the real-time system, light up the light sign and push the alarm window, providing a highly consistent training simulation environment for monitoring operators. Associated signals include: oil temperature of the main transformer, gas signal; spring pressure of the switch or energy storage oil pressure signal, sulfur hexafluoride pressure signal, etc.

[0024] The 3D human-computer interaction module is rendered by a 3D engine, and the rendering data consists of static 3D models and dynamic 3D models. The static basic model can reuse the BIM results of the design institute that meet the specifications of the State Grid Corporation; it can also be built through point clouds and drawings. First, the spatial coordinate reference of the substation scene and primary and secondary equipment is formed through point cloud data, and then it is corrected through the design drawings, and the device is assembled using the standardized library model combined with the on-site photos.

[0025] Automated operation and maintenance training mainly includes demonstration training, simulation model management, lesson plan maintenance, real-time examination, training query and other functions. Its graphic model data pulls the data of typical substations from the actual production operation system, truly simulates the automated operation and maintenance scenario of regional substation equipment, and copies the typical substation data into multiple substation data according to the number of trainees’ machines and assigns different responsibility areas. During trainee training and examinations, the application will only allow trainees to operate the substation data under the responsibility area according to the trainee’s responsibility area. It mainly includes demonstration training, simulation model management, lesson plan maintenance, and real-time examination function construction. The specific modules are as follows: Demonstration training includes video demonstration training and practical simulation training. The video demonstration training function demonstrates the use of common system maintenance tools and system exception handling in the form of network video streams or video files; the practical simulation training function improves students' ability to master a certain operation function by allowing students to complete actual operation questions in the question bank, which is similar to the simulation exam function.

[0026] The model management function manages the database models, graphic files, configuration documents and other data necessary for the operation of the centralized control system training system. The training simulation system is deployed separately, and typical substation model data is pulled from the production operation environment. Multiple training substation model data are created based on it. The substation data operated by different trainees are isolated through the system responsibility area, and the test system model data is restored to the initial state before the real-time test.

[0027] The lesson plan maintenance function includes maintenance of training videos and test question data, including video recording, question bank maintenance, etc.

[0028] The real-time examination function includes written examinations and practical operation examinations, and enables multiple student workstations to take online examinations simultaneously, including one instructor's end and multiple student ends. The instructor's end creates and starts new examinations and monitors the examinations in real time; the student's end is responsible for prompting examinees with real-time test questions, uploading the current test progress status, and collecting and uploading answers.

Claims

1. A cloud-based simulation training system suitable for the integrated control system master station and substation, characterized in that: include: Monitoring business simulation unit, substation operation and maintenance simulation unit, and automated operation and maintenance training unit; The monitoring business simulation unit is used to adjust the regional power grid operation mode, set fault points, and prepare training lesson plans based on the integrated simulation technology of graphics, models and numbers and the containerized scenario creation technology, and to carry out training on the recognition of power grid operation characteristics, fault and abnormal operation condition processing, including: simulation model parameter synchronization module, simulation scenario creation module, power system simulation module, and integrated training evaluation module; the substation operation and maintenance simulation unit is used to simulate primary equipment, secondary equipment and monitoring systems based on virtual reality 3D technology, graphical modeling technology, and power flow calculation technology; to achieve high-precision and realistic virtual reproduction of substations, and to carry out equipment operation recognition, inspection, switching operation and accident handling training, including: primary equipment simulation module, secondary equipment simulation module, simulation logic operation module, and three-dimensional human-computer interaction module; the automated operation and maintenance training unit is used to extract typical substation data from the actual production and operation system, and truly simulate the automated operation and maintenance scenario of regional substation equipment. According to the number of trainees' machines, the typical substation data is copied into multiple substation data and assigned to different responsibility areas. According to the trainees' responsibility areas, only the trainees are allowed to operate the substation data under the responsibility area, including: demonstration training module, simulation model management module, lesson plan maintenance module, and real-time examination module.

2. According to claim 1, a cloud-based simulation training system suitable for integrating a central control system master station and a substation, characterized in that: The simulation model parameter synchronization module is used to maintain parameters through model mapping. The centralized control system establishes a mapping relationship between the dispatching side device ID and the centralized control device ID. The dispatching side periodically synchronizes the calculation parameters of the device. The simulation scenario creation module is used to customize the training event sequence, preset the triggering method of the event sequence during the lesson plan production process, and set the corresponding executors, trigger time and preceding events respectively.

3. According to claim 1, a cloud-based simulation training system suitable for integrating a central control system master station and a substation is characterized in that: The power system simulation module is used to simulate the steady state of the power system, relay protection and system simulation, and data acquisition, and provides comprehensive simulation functions for the power system, including: simulation of the primary system and simulation of the secondary system; the integrated training evaluation module is used to compare the operation record trace records with the reference answers of the training examination; among them, the operation traces include the full business trace records of monitoring business simulation, substation operation and maintenance simulation, and automated operation and maintenance training.

4. According to claim 1, a cloud-based simulation training system suitable for integrating a central control system master station and a substation is characterized in that: The primary equipment simulation module is used to simulate the primary equipment, including: transformers, circuit breakers, busbars, busbars, sectioning, disconnectors, grounding switches, lightning arresters, reactors, capacitors, voltage transformers, current transformers, and pole towers; the secondary equipment simulation module is used to simulate the secondary equipment, including: protection devices, measurement and control devices, intermediate relays, circuit breakers, pressure plates, transfer switches, buttons, LED displays, automatic devices, central signals, and signal lights.

5. The cloud-based simulation training system applicable to the integrated control system master station and substation according to claim 1 is characterized in that: The simulation logic operation module is composed of protection and power flow models. It is used to analyze the principles of the protection device, model the protection device in a digital way, realize the mathematical model of the input and output of the internal components of the protection device, and construct the correlation between the model parameters, so as to simulate the action characteristics of the protection device; the three-dimensional human-computer interaction module is provided with rendering function by the three-dimensional engine, and the rendering data is composed of static three-dimensional models and dynamic three-dimensional models.

6. A cloud-based simulation training system suitable for integrating a central control system master station and a substation according to claim 5, characterized in that: The static basic model is the BIM result of the design institute that meets the specifications of State Grid Corporation of China and is built through point cloud and drawings: first, the spatial coordinate reference of the substation scene and primary and secondary equipment is formed through point cloud data, and then it is corrected through the design drawings, and the device is assembled using standardized library models combined with on-site photos.

7. The cloud-based simulation training system applicable to the integrated control system master station and substation according to claim 1 is characterized in that: The demonstration training module includes video demonstration training and practical simulation training. The video demonstration training demonstrates the use of common system maintenance tools and system exception handling in the form of network video streams or video files; the practical simulation training function improves students' ability to master a certain operation function by allowing students to complete actual operation questions in the question bank.

8. The cloud-based simulation training system applicable to the integrated control system master station and substation according to claim 1 is characterized in that: The model management module is used to manage the database models, graphic files and configuration documents necessary for the operation of the centralized control system and training system; extract typical substation model data from the production operation environment, create multiple training substation model data, isolate the substation data operated by different trainees through the system responsibility area, and restore the test system model data to the initial state before the real-time test.

9. The cloud-based simulation training system applicable to the integrated control system master station and substation according to claim 1, characterized in that: The lesson plan maintenance module is used to maintain training videos and test question data, including recording videos and question bank maintenance; The real-time examination module includes written examinations and practical operation examinations, and is used to implement simultaneous online examinations on multiple student workstations, including one instructor terminal and multiple student terminals.

10. A cloud-based simulation training system suitable for integrating a central control system master station and a substation according to claim 9, characterized in that: The instructor's end is used to create and start new exams and monitor the exams in real time; the student's end is responsible for reminding students of real-time exam questions, uploading the current exam progress status, and collecting and uploading answers.

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