Whole-process operation and control experiment platform for power system

By designing a full-process operation and control experimental platform for power systems, the integration of power generation, transmission, distribution, and consumption is realized. This solves the problem that existing equipment cannot meet the requirements of comprehensive automation experiments for power systems, provides a realistic power system operation experience and secure data management, and improves students' practical skills and experimental results.

CN224217172UActive Publication Date: 2026-05-08HANGZHOU QIUSHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU QIUSHENG TECH CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing power system experimental equipment cannot realize the integration of power generation, transmission, distribution and consumption in power system engineering. It lacks realism and intuitiveness, cannot meet the needs of comprehensive automation experiments in power systems, and has insufficient data security and remote monitoring.

Method used

Design a power system full-process operation and control experimental platform, including integrated functions of power generation, transmission, distribution and consumption. Adopt an advanced software architecture and hardware connection method to integrate power plant operation and control, transmission line protection, substation experiment and other systems to realize data security management and remote monitoring. Separate primary system and secondary system for easy operation and maintenance.

Benefits of technology

Students can conduct experiments on the entire process of power systems on the same platform, gain a real experience of power system operation, improve their practical skills and problem-solving abilities, ensure the safety and stability of the experimental process, and meet the needs of comprehensive automation experiments in power systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric power system whole process operation control experiment platform comprising an electric power system power plant operation control experiment system, an electric power transmission line operation control and protection experiment system, a transformer station experiment system, a factory power supply and power distribution operation control and protection experiment system and an electric power system whole process operation control system. The power system power plant operation control experiment system comprises a generator set and a power plant control cabinet, the power plant control cabinet is connected with the generator set, the generator set is connected with the power transmission line operation control and protection experiment system, and the power transmission line operation control and protection experiment system is connected with the transformer substation experiment system. The substation experiment system is connected with the factory power supply and power distribution operation control and protection experiment system, has an integrated function of power generation, power transmission, power distribution and power utilization, and is more reasonable and advanced in software and hardware design, so that students can perform whole-process experiment operation of the power system on the same platform and know operation and control of the power system better; and the safety and stability of the experiment process are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of power experimental equipment technology, and in particular to a power system full-process operation and control experimental platform. Background Technology

[0002] With the continuous development of power system technology, courses related to power system automation, microcomputer line protection, power grid monitoring and dispatch automation are becoming increasingly important in the teaching of power and electrical engineering majors in colleges and universities. However, the existing power system experimental equipment has many shortcomings.

[0003] On the one hand, traditional experimental equipment is mostly an isolated single platform, which cannot realize the integration of power generation, transmission, distribution and consumption in power system engineering. It is difficult to provide a real and complex power system network, which makes it impossible for students to fully understand the entire process of operation and control of the power system during the learning process, affecting the teaching effect and the cultivation of students' practical ability.

[0004] On the other hand, the software of existing experimental equipment has deficiencies in data security management and remote monitoring, failing to meet the needs of modern power system experimental teaching for data security and remote monitoring. Furthermore, the hardware structure and connection methods of the experimental equipment are also unreasonable; for example, the primary and secondary systems are not separated, resulting in an experimental process that is not intuitive or realistic, and is inconvenient for on-site operation and maintenance.

[0005] In power system experimental teaching, traditional experimental equipment often can only simulate a single aspect of the power system, such as the operation of a power plant or the protection of transmission lines, and cannot realize the full-process operation and control experiment of the entire power system. This makes it difficult for students to develop a holistic view of the entire power system during the learning process, and they cannot fully grasp the interrelationships and coordinated operation between various aspects of the power system, thus affecting their understanding and mastery of the overall operation mechanism of the power system.

[0006] Meanwhile, with the development of computer and communication technologies, power system automation technology has undergone profound changes, gradually evolving from partial, single-function automation to comprehensive system automation, and extending from transmission network automation to power supply and distribution network automation. However, existing power system experimental equipment has failed to keep pace with this development trend in terms of hardware structure and software functionality, and cannot meet the needs of teaching for comprehensive power system automation experiments.

[0007] Therefore, a power system full-process operation and control experimental platform is proposed to solve the above-mentioned technical problems. Utility Model Content

[0008] The purpose of this invention is to solve the above-mentioned technical problems and provide a power system full-process operation and control experimental platform. This invention has the integrated functions of power generation, transmission, distribution and consumption, and can provide a real and complex power system network. It is more reasonable and advanced in software and hardware design, enabling students to conduct full-process power system experiments on the same platform, fully understand the operation and control of the power system, and ensure the safety and stability of the experimental process.

[0009] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a power system full-process operation and control experimental platform, including a power system power plant operation and control experimental system, a power transmission line operation and control and protection experimental system, a substation experimental system, a factory power supply and distribution operation and control and protection experimental system, and a power system full-process operation and control system. The power system power plant operation and control experimental system includes a generator set and a power plant control cabinet. The power plant control cabinet and the generator set are connected. The generator set is connected to the power transmission line operation and control and protection experimental system. The power transmission line operation and control and protection experimental system is connected to the substation experimental system. The substation experimental system is connected to the factory power supply and distribution operation and control and protection experimental system. The power system power plant operation and control experimental system, the power transmission line operation and control and protection experimental system, the substation experimental system, and the factory power supply and distribution operation and control and protection experimental system are all connected to the power system full-process operation and control system.

[0010] Preferably, the power transmission line and protection test system includes multiple inductors and resistors. The multiple inductors are connected to the generator set, the factory power supply and distribution operation control and protection test system, and the resistor, generator set and substation test system, respectively.

[0011] Preferably, the power transmission line and protection test system further includes a microcomputer line protection device and a microcomputer distance protection device, which are connected to the downstream end of the multi-segment inductor and resistor.

[0012] Preferably, the substation experimental system includes an experimental control device and an experimental generating device. The experimental generating device is connected to the power transmission line and protection experimental system, and the experimental control device is connected to the experimental generating device.

[0013] Preferably, the experimental control device is a system simulation operation screen used to control and simulate substation experiments.

[0014] Preferably, the experimental device includes a relay protection cabinet and a monitoring master station. The relay protection cabinet is connected to the factory power supply and distribution operation control and protection experimental system for simulation, and the monitoring master station is connected to the relay protection cabinet to realize remote control function.

[0015] Preferably, the factory power supply and distribution operation control and protection experimental system includes a substation simulated power supply and distribution system, which is connected to the relay protection cabinet and the power system full-process operation control system.

[0016] Preferably, the power system full-process operation and control system includes an AGC power generation control system, an AVC voltage control system, and a power data acquisition system. The front ends of the AGC power generation control system, the AVC voltage control system, and the power data acquisition system are all connected to the power system power plant operation and control experimental system, the power transmission line operation and control and protection experimental system, the substation experimental system, and the factory power supply and distribution operation and control and protection experimental system.

[0017] Preferably, the power system full-process operation and control system also includes an EDC dispatching system, which is connected to the AGC power generation control system, the AVC voltage control system, and the power data acquisition system.

[0018] Preferably, the power plant operation and control test system, the power transmission line operation and control and protection test system, the factory power supply and distribution operation and control and protection test system, the substation test system, and the power system full-process operation and control system are connected and transmitted via aviation cables.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model integrates experimental equipment for all aspects of power generation, transmission, distribution and consumption, enabling students to conduct experimental operations on the entire process of the power system on the same platform and gain a comprehensive understanding of the operation and control of the power system.

[0021] 2. This utility model uses a combination of hardware and software to realistically simulate the normal operation and fault conditions of a power system, enabling students to gain an experience close to actual engineering in the experiment, and improve their practical skills and problem-solving abilities.

[0022] 3. This utility model adopts advanced software architecture and technology, such as B / S architecture, to realize secure data management, remote monitoring and multi-client support, making experimental teaching more intuitive, convenient and efficient;

[0023] 4. The primary and secondary systems are separated for easy operation and maintenance; at the same time, advanced connection methods, such as aviation cables and bus connections, are used to ensure the safety and stability of the experimental process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall frame structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the interface for WEB user permission management according to this utility model.

[0026] In the diagram: 1. Power plant operation and control experimental system; 11. Generator set; 12. Power plant control cabinet; 2. Power transmission line operation and control and protection experimental system; 21. Multi-segment inductor; 22. Resistor; 23. Microcomputer line protection device; 24. Microcomputer distance protection device; 3. Substation experimental system; 31. Experimental control device; 32. Experimental generator; 321. Relay protection cabinet; 322. Monitoring master station; 4. Factory power supply and distribution operation and control and protection experimental system; 41. Substation simulated power supply and distribution system; 5. Power system full-process operation and control system; 51. AGC power generation control system; 52. AVC voltage control system; 53. Power data acquisition system; 54. EDC dispatching system. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 and Figure 2 As shown, this utility model discloses a power system full-process operation and control experimental platform, comprising a power plant operation and control experimental system 1, a power transmission line operation and control and protection experimental system 2, a substation experimental system 3, a factory power supply and distribution operation and control and protection experimental system 4, and a power system full-process operation and control system 5. The power plant operation and control experimental system 1 includes a generator set 11 and a power plant control cabinet 12. The power plant control cabinet 12 is connected to the generator set 11. The generator set 11 is connected to the power transmission line operation and control and protection experimental system 2. The power transmission line operation and control and protection experimental system 2 is connected to the substation experimental system 3. The substation experimental system 3 is connected to the factory power supply and distribution operation and control and protection experimental system 4. The power plant operation and control experimental system 1, the power transmission line operation and control and protection experimental system 2, the substation experimental system 3, and the factory power supply and distribution operation and control and protection experimental system 4 are all connected to the power system full-process operation and control system 5.

[0029] By adopting the above technical solutions, the power plant operation and control experimental system 1 is used to simulate the operation and control of power plants, including automatic generation control, automatic voltage regulation control, and synchronous grid connection experiments; the power transmission line operation and control and protection experimental system 2 is used to simulate the operation, control, and protection of transmission lines, including microprocessor-based line protection, power flow indication, and fault setting functions; the substation experimental system 3 is used to simulate the primary and secondary systems of substations, realizing the acquisition and control of primary system signals; the factory power supply and distribution operation and control and protection experimental system 4 is used to simulate the power supply and distribution system of large factory substations, completing backup power supply, on-load tap changer, VQC, and SCADA experiments; and the power system full-process operation and control system 5 is used to monitor and manage the entire power system, including the AGC and AVC systems of power plants, the SCADA systems of substations, substations, and lines, and the EDC dispatching system, with data acquisition, analysis, processing, and remote monitoring functions.

[0030] The 2kVA generator set 11 can perform starting and operation tests, including constant α-angle speed regulation, voltage closed-loop speed regulation, and speed closed-loop speed regulation; synchronous generator excitation control tests, including basic operation of the microcomputer excitation device, observation of excitation voltage waveforms at different α-angles, excitation under typical conditions, control mode switching, demagnetization by tripping the demagnetizing switch and inverter demagnetization, volt-Hertz limit, under-excitation limit, forced excitation test, differential adjustment test, and over-excitation limit; synchronous generator quasi-synchronous parallel operation tests, including basic operation of the microcomputer quasi-synchronizing device, automatic quasi-synchronous condition test, linear synchronizing voltage formation test, differential voltage, frequency difference, and phase difference interlocking and setting, lead time setting and measurement, manual quasi-synchronous grid connection, semi-automatic quasi-synchronous grid connection, and automatic quasi-synchronous grid connection; self-excitation tests, including voltage closed-loop and current closed-loop; and single-unit- The experiments included: infinite coefficient stable operation mode tests, such as single-circuit steady-state symmetrical operation, comparison of steady-state symmetrical operation between dual-circuit and single-circuit systems, and single-circuit steady-state non-full-phase operation; single-unit load tests, including loading and unloading different loads and load shedding; power system power characteristics and power limit tests, including power characteristics and power limit determination under unregulated excitation and microprocessor-based external excitation, as well as tests on the relationship between single-circuit and dual-circuit transmission power and power angle; and power system transient stability and synchronous generator tests, including no-load tests, short-circuit tests, V-curve and zero power factor determination, and external characteristic tests.

[0031] The power transmission line and protection test system 2 includes multiple inductors 21 and resistors 22. The multiple inductors are connected to the generator set 11 and the factory power supply and distribution operation control and protection test system 3, respectively. The resistors 22 are connected to the generator set 11 and the substation test system 3.

[0032] By adopting the above technical solution, the multi-segment inductor 21 and resistor 22 are used to realistically simulate the impedance of the on-site power transmission line.

[0033] The power transmission line and protection experimental system 2 also includes a microcomputer line protection device 23 and a microcomputer distance protection device 24, which are connected to the back end of the multi-segment inductor 21 and resistor 22.

[0034] By adopting the above technical solutions, the microcomputer line protection device 23 and the microcomputer distance protection device 24 can realize the functions of telemetry, remote control and signal parameter acquisition of the line by the power system automation engineering experimental monitoring system, and conduct basic functional tests of the microcomputer protection device, including microcomputer time-limited overcurrent protection, microcomputer unlimited time-limited instantaneous overcurrent protection, microcomputer time-limited instantaneous overcurrent protection, staged current protection, the influence of operating mode on protection sensitivity and sensitivity verification, current and voltage interlock protection, inverse time protection test, staged overcurrent protection and automatic reclosing acceleration, staged overcurrent protection and automatic reclosing acceleration, and other line protection functions research.

[0035] The substation experimental system 3 includes an experimental control device 31 and an experimental generating device 32. The experimental generating device 32 is connected to the power transmission line and protection experimental system 2, and the experimental control device 31 is connected to the experimental generating device 32.

[0036] The experimental control device 31 is specifically a system simulation operation screen used to control and simulate substation experiments.

[0037] The experimental device 32 includes a relay protection cabinet 321 and a monitoring master station 322. The relay protection cabinet 321 is connected to the factory power supply and distribution operation control and protection experimental system 4 for simulation. The monitoring master station 322 is connected to the relay protection cabinet 321 to realize remote control function.

[0038] By adopting the above technical solution, the relay protection cabinet 321 is used to realize the acquisition and control of primary system signals, and the monitoring master station 322 is connected to the relay protection cabinet 321 through a communication cable.

[0039] The training includes line protection simulation, static testing of protection devices, basic function testing of microcomputer protection devices, microcomputer time-limit overcurrent protection, microcomputer instantaneous overcurrent protection without time limit, microcomputer instantaneous overcurrent protection with time limit, staged overcurrent protection, the impact of operating mode on protection sensitivity and sensitivity verification, current and voltage interlocking protection, inverse time protection test, staged overcurrent protection and acceleration before automatic reclosing, staged overcurrent protection and acceleration after automatic reclosing, and research on other line protection functions.

[0040] Conduct line design experiments, including current and voltage interlocked instantaneous overcurrent protection and overcurrent protection, current and voltage interlocked instantaneous overcurrent protection, overcurrent integrated protection and automatic reclosing, inverse time current protection and overcurrent protection, inverse time overcurrent protection and automatic reclosing, current and voltage interlocked protection and acceleration after automatic reclosing, and inverse time overcurrent and acceleration after automatic reclosing.

[0041] Conduct experiments on the microcomputer-based main protection of transformers, including the setting of microcomputer-based transformer longitudinal differential protection, the second harmonic restraint of transformers, the differential instantaneous overcurrent protection of transformers, and the study of the ratio restraint characteristics.

[0042] Conduct experiments on transformer microprocessor backup protection, including simulating transformer gas protection, transformer instantaneous overcurrent protection, transformer overcurrent protection, transformer undervoltage start-up overcurrent protection, and transformer composite voltage start-up overcurrent protection.

[0043] Conduct a system switching operation training session, including line de-energization and energization switching training, switching outgoing line switches from operation to maintenance training, switching outgoing lines from maintenance to operation training, switching from two incoming power lines to one power line, switching from one incoming power line to two power lines, switching 110kV busbars from operation to maintenance training, switching 110kV busbars from maintenance to operation training, switching 110kV transformers from operation to maintenance training, switching 110kV transformers from maintenance to operation training, switching 10kV busbars from operation to maintenance training, switching 10kV busbars from maintenance to operation training, switching 10kV transformers from operation to maintenance training, and switching 10kV transformers from maintenance to operation training.

[0044] The factory power supply and distribution operation control and protection experimental system 4 includes a substation simulated power supply and distribution system 41, which is connected to the relay protection cabinet 321 and the power system full-process operation control system 5.

[0045] By adopting the above technical solution, a power supply and distribution system 41 for simulating a 35 / 10kV substation in a large factory is simulated. The two sets of substation transformers have different capacities, which can complete backup power supply, on-load tap changer, VQC, and SCADA experiments.

[0046] The power system full-process operation and control system 5 includes an AGC power generation control system 51, an AVC voltage control system 52, and a power data acquisition system 53. The front ends of the AGC power generation control system 51, the AVC voltage control system 52, and the power data acquisition system 53 are respectively connected to the power plant operation and control experimental system 1, the power transmission line operation and control and protection experimental system 2, and the factory power supply and distribution operation and control and protection experimental system 4.

[0047] By adopting the above technical solutions, the AGC power generation control system 51 and the AVC voltage control system 52 are used to realize automatic power generation control and automatic voltage control, and the power data acquisition system 53 is used to realize data acquisition, monitoring and control of the power system.

[0048] The power system full-process operation and control system 5 also includes an EDC dispatch system 54, which is connected to the AGC power generation control system 51, the AVC voltage control system 52, and the power data acquisition system 53.

[0049] By adopting the above technical solutions, the EDC dispatching system 54 is used for dispatching and managing the entire power system. It can forward the collected data to the main energy management system computer for data analysis and processing, and then publish it to the monitoring computer via the web. The EMS energy management system can manage the permissions of web users, which facilitates the deployment of the system. The web publishing supports network structures with multiple connection methods such as LAN, WAN, enterprise leased line and modem dial-up, realizing long-distance remote control. The software interface has power flow distribution, primary system diagram, power grid function diagram, primary system diagram of each device, simulation screen, curve analysis, load report, remote adjustment list, microcomputer device interface, event log, print selection station and user management functions.

[0050] The power plant operation and control experimental system 1, the power transmission line operation and control and protection experimental system 2, the factory power supply and distribution operation and control and protection experimental system 3, the substation experimental system 4, and the power system whole process operation and control system 5 are connected and transmitted via aviation cables.

[0051] In its specific implementation, this utility model involves: activating the power plant operation and control experimental system 1 to conduct start-up and operation experiments on generator set 11, including constant α-angle speed regulation, voltage closed-loop speed regulation, and speed closed-loop speed regulation, observing the generator set's operating status and performance; conducting synchronous generator excitation control experiments, such as basic operation of the microcomputer excitation device, observation of different α-angle excitation voltage waveforms, and excitation under typical conditions, studying the impact of excitation control on generator performance; carrying out synchronous generator quasi-synchronous parallel operation experiments, including basic operation of the microcomputer quasi-synchronous device and automatic quasi-synchronous condition testing, achieving synchronous grid connection between the generator and the power grid; conducting self-excitation experiments, single-unit-infinite coefficient stable operation mode experiments, single-unit load experiments, and power system power characteristics and power limit experiments, studying the power plant's performance and stability under different operating conditions; and conducting power system transient stability experiments and synchronous generator experiments to further analyze the power plant's stability during transient processes and the generator's characteristics.

[0052] The power transmission line operation control and protection experimental system 2 was launched to conduct basic functional tests on the microcomputer protection device 23, including microcomputer-controlled time-limited overcurrent protection and microcomputer-controlled instantaneous overcurrent protection, testing the operating characteristics and reliability of the protection device; the impact of operating mode on protection sensitivity and sensitivity verification were studied, the sensitivity changes of the protection device under different operating modes were analyzed, and the setting values ​​of the protection device were optimized; current and voltage interlock protection, inverse time protection tests, as well as staged overcurrent protection and automatic reclosing pre-acceleration and post-acceleration tests were conducted to study the operating behavior and protection effect of the protection device under different fault conditions; other line protection functions were studied, such as power direction overcurrent protection, overload protection, zero-sequence current protection and low-voltage load shedding protection, to comprehensively evaluate the protection performance of the transmission line.

[0053] In substation experimental system 3, line protection training is conducted, including simulating system short circuits and static tests of protection devices to test the operating performance of protection devices in the substation; line design experiments are carried out, such as current and voltage interlocked instantaneous overcurrent protection and overcurrent protection, current and voltage interlocked instantaneous overcurrent protection, and overcurrent integrated protection and automatic reclosing, to study the protection effect and reliability of protection devices under different schemes; transformer microcomputer main protection experiments are conducted, including microcomputer transformer longitudinal differential protection setting and transformer second harmonic restraint, to study the operating characteristics and protection effect of transformer main protection devices; transformer microcomputer backup protection experiments are conducted, such as simulating transformer gas protection and transformer current instantaneous overcurrent protection, to study the operating performance and protection range of transformer backup protection devices; primary system switching operation training is conducted, including line de-energization and energization switching training, and outgoing switch switching from operation to maintenance training, to familiarize participants with the switching operation procedures and precautions of the substation primary system.

[0054] In the factory power supply and distribution operation control and protection experimental system 4, the power supply and distribution system 41 of a large factory 35 / 10kV substation is simulated. Experiments related to backup power supply, on-load tap changer, VQC, and SCADA are carried out to study the operating characteristics and control strategies of the factory power supply and distribution system.

[0055] The entire power system is monitored and managed through the power system's full-process operation and control information system 5. Each substation forwards collected data to the central energy management system computer for analysis and processing. The EMS energy management system manages web user permissions, assigning different operating rights based on user privileges to ensure the system's secure operation. Data is sent to the monitoring computer via the web publishing function, supporting various network structures including LAN, WAN, dedicated enterprise lines, and modem dial-up, enabling long-distance remote control. Utilizing various software interface functions, such as power flow distribution, primary system diagrams, power grid function diagrams, primary system diagrams for individual devices, simulation screens, curve analysis, load reports, remote control lists, microcomputer device interfaces, event logs, print selection, station selection, and user management, the system's operating status is monitored and analyzed in real time, allowing for timely detection and handling of faults and anomalies.

[0056] During the experiment, the power system full-process operation and control information system 5 automatically recorded the historical data waveforms of voltage, current and power at each node and generated load reports.

[0057] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power system full-process operation and control experimental platform, characterized in that: The system includes a power plant operation and control experimental system (1), a power transmission line operation and control and protection experimental system (2), a substation experimental system (3), a factory power supply and distribution operation and control and protection experimental system (4), and a power system full-process operation and control system (5). The power plant operation and control experimental system (1) includes a generator set (11) and a power plant control cabinet (12). The power plant control cabinet (12) is connected to the generator set (11). The generator set (11) is connected to the power transmission line operation and control and protection experimental system (2). The power transmission line operation and control and protection experimental system (2) is connected to the substation experimental system (3). The substation experimental system (3) is connected to the factory power supply and distribution operation and control and protection experimental system (4). The power plant operation and control experimental system (1), the power transmission line operation and control and protection experimental system (2), the substation experimental system (3), and the factory power supply and distribution operation and control and protection experimental system (4) are all connected to the power system full-process operation and control system (5).

2. The power system full-process operation and control experimental platform according to claim 1, characterized in that: The power transmission line and protection test system (2) includes multiple inductors (21) and resistors (22). The multiple inductors are connected to the generator set (11) and the factory power supply and distribution operation control and protection test system (4), respectively. The resistors (22), the generator set (11) and the substation test system (3) are connected.

3. The power system full-process operation and control experimental platform according to claim 2, characterized in that: The power transmission line and protection experimental system (2) also includes a microcomputer line protection device (23) and a microcomputer distance protection device (24), which are connected to the back end of the multi-segment inductor (21) and resistor (22).

4. The power system full-process operation and control experimental platform according to claim 1, characterized in that: The substation experimental system (3) includes an experimental control device (31) and an experimental generating device (32). The experimental generating device (32) is connected to the power transmission line and protection experimental system (2), and the experimental control device (31) is connected to the experimental generating device (32).

5. The power system full-process operation and control experimental platform according to claim 4, characterized in that: The experimental control device (31) is specifically a system simulation operation screen used to control and simulate substation experiments.

6. The power system full-process operation and control experimental platform according to claim 4, characterized in that: The experimental device (32) includes a relay protection cabinet (321) and a monitoring master station (322). The relay protection cabinet (321) is connected to the factory power supply and distribution operation control and protection experimental system (4) for simulation. The monitoring master station (322) is connected to the relay protection cabinet (321) to realize remote control function.

7. The power system full-process operation and control experimental platform according to claim 1 or 6, characterized in that: The factory power supply and distribution operation control and protection experimental system (4) includes a substation simulated power supply and distribution system (41), which is connected to the relay protection cabinet (321) and the power system full-process operation control system (5).

8. The power system full-process operation and control experimental platform according to claim 1, characterized in that: The power system full-process operation and control system (5) includes an AGC power generation control system (51), an AVC voltage control system (52), and a power data acquisition system (53). The front ends of the AGC power generation control system (51), the AVC voltage control system (52), and the power data acquisition system (53) are respectively connected to the power plant operation and control experimental system (1), the power transmission line operation and control and protection experimental system (2), and the factory power supply and distribution operation and control and protection experimental system (4).

9. The power system full-process operation and control experimental platform according to claim 8, characterized in that: The power system full-process operation and control system (5) also includes an EDC dispatch system (54), which is connected to the AGC power generation control system (51), the AVC voltage control system (52), and the power data acquisition system (53).

10. The power system full-process operation and control experimental platform according to claim 1, characterized in that: The power plant operation and control experimental system (1), power transmission line operation and control and protection experimental system (2), substation experimental system (3), factory power supply and distribution operation and control and protection experimental system (4) and power system whole process operation and control system (5) are connected and transmitted through aviation cables.