Abstract：Electromagnetic repulsion mechanism-based fast switch will find wide applications in many fields of power systems. A new permanent magnet-based motor-coil repulsion mechanism is proposed for vacuum circuit breakers, with preferable merits of simple structure, fast operation speed and high controllability. The control system of the mechanism is composed of a controllable pulsed discharge voltage source based on power electronics PWM technique and a feedback controller. With regard to optimal tracking control of switching speed of moving contacts, a methodology of direct driving force control without speed sensors is presented, simulation results of which show it is convenient for realizing dynamic optimization and fast operation. An electromagnetic relaxation scheme of triggered bypass discharge is designed to effectively counteract the bouncing phenomenon in impact of moving contacts.
娄杰, 段玉兵, 李庆民, 孙庆森. 音圈电动机式脉冲推力机构的计算与控制仿真[J]. 电工技术学报, 2009, 24(11): 76-82.
Lou Jie, Duan Yubing, Li Qingmin, Sun Qingsen. Computational Analysis and Control Simulation of a Permanent Magent-Based Motor-Coil Repulsion Mechanism. Transactions of China Electrotechnical Society, 2009, 24(11): 76-82.
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2009, Vol. 24 
