【摘要】 在介绍了高压断路器的双稳态永磁机构结构及工作原理的基础上,对其涡流电磁场方程进行了描述,研究了电流源激励下的瞬态磁场,并推导出考虑涡流情况下的非线性瞬态磁场数学模型,建立出永磁机构动态方程.采用耦合法,并且应用了ANSYS软件进行编程来对永磁机构的瞬态场进行计算,对它的线圈电流、动铁芯位移及受力进行分析,并研究了涡流效应对永磁机构的影响,得出应选择电导率小,电磁性能好和损耗低的导磁材料的结论.更多还原

【Abstract】 In this paper, based on the introduction of the permanent magnetic actuator and analysis of its operating principle, the eddy equations of magnetic field were described. The transient magnetic field (supplied) by coil current was studied. The mathematical model of nonlinear transient magnetic field was (deduced) under eddy condition and the dynamic equations were established. The couple field in the (permanent) magnetic actuator was calculated with the ANSYS software. And its coil current, displacement of move iron core, force and eddy effect were analyzed. The conclusion of selecting the magnetic conductor with small conductivity, good magnetic performance and low dissipation was obtained.更多还原