Magnetic Field Analysis and Dynamic Characteristic Prediction of AC Permanent-Magnet Contactor
Magnetic Field Analysis and Dynamic Characteristic Prediction of AC Permanent-Magnet Contactor
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DOI：
10.1109/tmag.2009.2015053
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发表时间：
2009-06
影响因子：
2.1
通讯作者：
S. Fang;Heyun Lin;S. Ho
中科院分区：
文献类型：
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作者：
S. Fang;Heyun Lin;S. Ho
本文对交流永磁接触器的磁场及其控制原理进行了深入的研究。这种接触器在节能和可靠性方面比传统的电磁接触器有许多优点。仿真模型耦合了磁体、电路和运动之间的相互作用，并利用MATLAB软件进行了综合。为了加快仿真速度，该模型采用有限元方法分别计算了位移、磁链和电流的非线性关系。给出了全桥整流电路在全电压下不同相角电流的仿真结果。对计算得到的静力和动态仿真结果进行了实验验证。
This paper reports a thorough investigation into the magnetic field of an ac permanent-magnet contactor and its control principles. Such contactors offer many advantages over conventional electromagnetic contactors in terms of energy saving and reliability. The simulation model, which couples the interaction of the magnet, circuit, and motion, is synthesized using MATLAB software. In order to speed up the simulation process, the model computes the nonlinear relationships of displacement, flux linkage, and current separately, using the finite-element method. We report simulation results for various phase angles of current flowing in the full bridge rectifier at full voltage. We have validated the calculated static force and the dynamic simulation experimentally.