Abstract：Permanent magnet is the key part of permanent magnet contactor. Its arrangements on stator or armature respectively display different dynamic performance. In the paper, based on 3-D finite element method, coil current density is achieved by coupling voltage method and then the relationship among displacement, current and electro-magnetic force is built. Simulation and experiment investigation for making and breaking courses are carried out. The simulated and experimental results show that the permanent magnet arrangement on the stator or on the armature has little effect on the dynamic performance for making course. However, for breaking course, the motion time when the permanent magnet is on the armature is shorter than that when the one is on the stator because of the transient repulsion force between the electrifying coil and the permanent magnet. The paper proposes a scientific approach for deciding permanent magnet arrangements of permanent magnet contactor.
房淑华, 林鹤云, 汪先兵, 蔡彬, 陈晓菊, 王立强. 永磁安装位置对永磁接触器动态特性的影响[J]. 电工技术学报, 2009, 24(9): 93-98.
Fang Shuhua, Lin Heyun, Wang Xianbing, Cai Bin, Chen Xiaoju, Wang Liqiang. Effect of Permanent Magnet Arrangements on Dynamic Performance of Permanent Magnet Contactor. Transactions of China Electrotechnical Society, 2009, 24(9): 93-98.
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2009, Vol. 24 
