Research and design of permanent magnetic actuator control system with high action stability of vacuum switch

Xiaoyang Lei

doi:10.1117/12.2686731

10 August 2023 Research and design of permanent magnetic actuator control system with high action stability of vacuum switch

Xiaoyang Lei

Author Affiliations +

Proceedings Volume 12759, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2023); 1275909 (2023) https://doi.org/10.1117/12.2686731
Event: 2023 3rd International Conference on Automation Control, Algorithm and Intelligent Bionics (ACAIB 2023), 2023, Xiamen, China

Abstract

Vacuum switch based on permanent magnet operating mechanism is widely used in power system. In order to keep the opening and closing time of permanent magnet vacuum circuit breaker consistent, the method of controlling coil current can ensure the stability of opening and closing time of permanent magnet vacuum circuit breaker. Firstly, the paper analyzes and calculates the dynamic characteristics of the opening and closing of the 40.5kV vacuum switch operating mechanism, and establishes a simulation test model. The improved hysteresis PID algorithm controller is used to detect and control the coil current and displacement characteristics of the mechanism in real time. The simulation test proves the feasibility of the controller in improving the mechanism action stability. To test the control algorithm, an intelligent controller is designed. The opening and closing experiments of the circuit breaker are carried out in different voltage ranges by selecting the energy storage capacitors with different capacities. The results show that the controller designed based on the above control principle can effectively control the travel track of the moving contact of the circuit breaker, so that the movement track of the moving contact is consistent with the movement track of the reference current curve; Under the selected coil reference current curve, the error of actual circuit breaker opening and closing action time is ≤ 0.35ms, and the dispersion can still be maintained at about ± 0.35ms under different ambient temperatures, which proves the effectiveness of adding this control system to improve the stability of action time.

Citation Download Citation

Xiaoyang Lei "Research and design of permanent magnetic actuator control system with high action stability of vacuum switch", Proc. SPIE 12759, International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2023), 1275909 (10 August 2023); https://doi.org/10.1117/12.2686731

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KEYWORDS

Circuit switching

Control systems

Vacuum

Actuators

Switches

Magnetism

Control systems design

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