Static and Dynamic Analysis for Contactor with a New Type of Permanent Magnet Actuator
Static and Dynamic Analysis for Contactor with a New Type of Permanent Magnet Actuator
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DOI：
10.1093/ietele/e89-c.8.1210
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发表时间：
2006-08
期刊：
影响因子：
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通讯作者：
M. Rong;Jianyong Lou;Yiying Liu;Jian Li
中科院分区：
文献类型：
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作者：
M. Rong;Jianyong Lou;Yiying Liu;Jian Li
本文提出了一种新型的永磁操动机构，该机构在分断过程中由电磁斥力驱动，在合闸过程中由电磁吸力驱动，并通过仿真和实验研究了这种新型操动机构的静态和动态特性。首先，通过有限元仿真和实验研究了闭合过程中的静态电磁吸力和断开过程中的电磁斥力。其次，通过耦合电微分方程和力微分方程，分别得到了闭合过程中的动态电磁吸引力和断开过程中的动态电磁排斥力。第三，通过建立触头系统和永磁操动机构的力学模型，通过仿真和实验研究，得到了触头闭合和分断时动触头和动铁芯的位移。结果表明，模拟结果与实验结果吻合较好。
SUMMARY A new type of permanent magnet actuator driven by elec-tromagnetic repulsive force in breaking course and electromagnetic attrac-tion force during closing course is presented in this paper, and the staticand dynamic characteristics for contactor with this new type actuator aremainly focused on by simulation and experiment simultaneously. Firstly,the static electromagnetic attraction force in closing course and electromag-netic repulsive force in breaking course are studied by FEM simulation andexperiment. Secondly, by coupling of the electrical and mechanical dif-ferential equations, the dynamic electromagnetic attraction force in closingcourse and dynamic electromagnetic repulsive force in breaking course areobtained respectively. Thirdly, by constructing the mechanical model ofcontact system and permanent magnet actuator, the displacements of mov-ing contact and moving core while both contactors’ closing and breakingare obtained by simulation and experimental study. It is indicated that sim-ulation results coincide well with that of experiment.