基于永磁真空断路器的选相控制技术研究

Research on Phasing-control Technology of Vacuum Circuit Breaker with Monostable Permanent Magnet Actuator

真空断路器作为供电系统中最为重要的控制和保护设备,其智能化一直是电力部门与用户关注的热点。该文以极柱式永磁机构真空断路器为研究对象,分析了其应用选相控制技术的可行性。叙述了选相控制技术的原理、方法,理论分析了无功补偿电容器组投切的相位选择策略,并利用MATLAB软件建立仿真模型,分析验证了其应用选相控制技术的可行性和电容器组投切相位选择策略的正确性,为实现单稳态永磁机构真空断路器的智能化提供了参考。

In power system,the vacuum circuit breaker as the most important control and protection equipment,its intelligent has been the focus of the user and power department.The paper focuses on extremely pillar type permanent magnet vacuum circuit breaker.The feasibility of phasing-control technology on vacuum circuit breaker with monostable permanent magnet actuator was analyzed.The principle and method of phasing-control technology was discussed.The phase-selection strategy in terms of capacitor load was analyzed,and the system simulating model was established in MATLAB.The test results show that phasing-control technology under capacitor load is validity and feasibility,and what have done makes a reference for the intelligent of vacuum circuit breaker with monostable permanent magnet actuator.