DL/T 1972-2019Basic technical conditions for hydropower plant training simulation system (English PDF)

4.1 Operating environment

a) Altitude. not more than 2000 meters

b) Temperature. 18-25 degrees Celsius

c) Humidity. 45%-65%

4.2 It should be able to simulate the production process such as operation, maintenance and testing of the hydropower plant equipment based on the operating principle, structural principle and test principle.

4.3 It should have a multi-mode, group training function.

4.4 It shall have the functions of training file management, online teaching, self-study, assessment and appraisal, and skill competition.

4.5 It should have a monitoring simulation man-machine interface, and it should be consistent with the simulation power station monitoring system.

4.6 It should have the function of simulation inversion.

4.7 User integration and maintenance tool software should be provided.

4.8 There should be training process and result recording, printing and management functions.

4.9 The man-machine interface should be friendly, easy to operate, simple and flexible.

4.10 The system should be open and expandable.

6.1 Training

6.1.1 Skills training

According to the requirements of the level appraisal of the operation and maintenance personnel of the hydropower plant, it shall have the function of grading training. It should include the following.

a) Theoretical knowledge learning;

b) Operation monitoring and equipment inspection;

c) Run operation simulation training - Normal start-up and shutdown, grid-connection and de-training operations of the unit;

- Unit load adjustment;

- AGC/AVC switching operation;

- Normal operation and operation of the unit speed control system;

- Normal operation and operation of the generator excitation system;

- Normal operation and operation of the generator and its auxiliary equipment;

- Normal operation and operation of the turbine and its auxiliary equipment;

- Normal operation and operation of the main transformer and its auxiliary equipment;

- Normal operation and switching operation of switch station (GIS);

- Simultaneous device switching and cutting operations;

- Switching and cutting operations of the main equipment of the oil, gas and water system;

- Normal operation and operation of the hydraulic system;

- Normal operation and operation of the unit braking system;

- Normal input and withdrawal of protection devices;

- Normal operation and operation of auxiliary power equipment;

- Normal operation and operation of the DC system;

- Normal operation and operation of the gate system;

- Operation switching of other equipment.

d) Failure and accident simulation training - Switch station (GIS) accident, fault simulation and handling operations;

- Hydro-turbine generator set accidents, fault simulation and handling operations;

- Transformer accidents, fault simulation and handling operations;

- Protection system accidents, fault simulation and handling operations;

- Unit excitation system accident, fault simulation and handling operations;

- Unit governor system accident, fault simulation and handling operations;

- System accidents, failure simulation and handling operations of hydraulic equipment;

- Automatic control system accidents, fault simulation and handling operations;

- Unit auxiliary equipment (oil, water, gas) system accidents, fault simulation and handling operations;

- Diversion system, technical water supply system and drainage system accidents, fault simulation and handling operations;

- System accident, fault simulation and handling operation of main valve (unit water inlet quick gate, cylinder valve);

- Auxiliary power system accidents, fault simulation and handling operations;

- DC system accidents, fault simulation and handling operations;

- Simulation of flooded plant accidents and handling operations, etc.

e) Test simulation training - Speed control system static characteristic test - Idling test - No-load test - Active power adjustment test - Load rejection test - Concurrent test - Excitation system small current test - Zero-start boost test - Voltage disturbance test - Reactive power adjustment test - Demagnetization test - Protection system verification test, etc.

6.1.2 Training evaluation management

a) Student management the system should have the functions of student registration, student information management, learning content, operation process, examination results, etc.

Record and query.

b) Test question bank management the test question bank should include theoretical test questions and practical test questions.

The test question bank should have convenient test question generation, modification and maintenance management functions.

The types of test questions can include. multiple choice questions, true or false questions, short answer questions, calculation questions, essay questions and other theoretical questions and practical skills exam questions.

The test question editor should have the ability to set the difficulty level and set the score according to the test question steps.

The theoretical knowledge test question bank should cover basic hydropower knowledge and power plant professional knowledge, and the operational test question bank should cover positive Common operations, accident troubleshooting operations and emergency drill operations.

c) Test paper management According to the type, volume, and score of the test paper set by the instructor, the system should have the function of automatically and manually generating test papers.

The test paper should be able to be modified, output and printed.

d) Trainees take computer test the simulation system should have the function of students taking exams on the computer, which can be divided into theoretical exams and practical skills exams.

e) Teacher monitoring Instructors should be able to issue tasks to students, set faults and monitor all students' operations on the simulation system.

f) Test paper scoring both manual and automatic scoring methods should be provided, and automatic scoring should be intelligently scored according to the established scoring strategy. Trainee the content of the answers, operation steps, and the completion of the test questions of the examination and assessment should be automatically recorded and archived in texts, tables, Video output should have query function.

g) Skills assessment should be able to provide different levels of assessment test questions in accordance with the requirements of the hydropower plant skills assessment and appraisal level, and have a skill level Judging function.

h) Technical competition it should have the function of group competition, the information within the group should be synchronized, and the information between the groups should be isolated.

i) Remote simulation training should be able to meet the requirements of remote and remote training.

6.2 Monitoring system simulation

It shall have the monitoring and control functions of the monitoring system of a simulated hydropower plant. Specific requirements are as follows.

a) The content of the database should be consistent with the simulation object;

b) The screen appearance, operation method, monitoring and control process are consistent with the simulation object;

c) It shall have functions such as monitoring and alarming, control operation, recording and query;

d) It should have the function of simulation operation demonstration, step-by-step simulation and complete simulation, for students to choose and use when learning;

e) The process control and equipment logic control functions should be organized;

f) It should have AGC/AVC simulation function;

AGC/AVC simulation should automatically optimize unit load distribution and control unit start and stop according to the operation mode of the power station.

The active and reactive power of the unit is automatically adjusted.

g) It should be able to communicate with the real-time monitoring system and collect real-time data from the monitoring system as the initial simulation data.

6.3 3D scene simulation

6.3.1 A three-dimensional digital model of the hydropower plant should be established, and the simulation content should include. the appearance of the hydropower plant's buildings, facilities and equipment, Structure, dynamic characteristics, etc.

6.3.2 3D scene model data format the 3D scene model should support the following data formats. 3DS, OBJ, FBX, IVE, etc.

6.3.3 Scene simulation

a) Power plant scene inspection;

b) Equipment operation and maintenance scenario simulation;

c) Equipment test scenario simulation;

d) Simulation of accidents and failure scenarios;

e) Emergency operation drill scene simulation;

f) Simulation of tool usage scenarios.

6.3.4 Other

It can support functions such as geographic information system (GIS) and virtual reality (VR).

6.4 Graphical Visual Modeling Tool

The system should have a graphical visualization modeling function to realize model design, development, debugging, modification and expansion.

a) Should support simulation program module configuration modeling;

b) It should support graphic automatic modeling;

c) Should support multi-person collaborative development;

d) Support online dynamic data modification and debugging;

e) It should support creating or editing models to form a simulation object model library.

6.5 Data Simulation Engine

The data simulation engine should have the following functions.

a) Model algorithm operation;

b) Control and selection of computing speed;

c) Variable monitoring;

d) Start/stop;

e) Operation/freezing;

f) Selection of initial working conditions;

g) Storage of working conditions;

h) Pause/rewind function;

7.1 System classification

The simulation system can be divided into large, medium, and small according to the total number of measurement points or the number of student stations in the simulation system. For specific classification, refer to Appendix B Training Simulation System size classification table.

7.2 Principles of hardware configuration

The system should be equipped with data server, simulation server, teacher station, student station, engineer station, switch, printer, projection or large-screen display system equipment. It is advisable to configure virtual reality simulation equipment and its corresponding graphics workstation.

Each student station should be equipped with 2 or 3 monitors.

The hardware can be configured according to the size of the system, as shown in Table 2.

7.3 Principles of Software Configuration

The system should be equipped with operating system, historical database, real-time database, teacher function software, student function software, monitoring simulation, graphics Shape visualization modeling tools, data simulation engines, and examination systems should be equipped with 3D scene simulation software and 3D modeling tool software can be configured.

The software can be configured according to the roles of teacher station and student station, as shown in Table 3.

It shall comply with DL/T 578 "Basic Technical Conditions of Computer Monitoring System for Hydropower Plants".

Appendix A

(Informative appendix) List of simulation measurement data