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实心转子永磁同步电机的时步有限元分析

, PP. 18-23

Keywords: 实心转子,场路耦合,运动气隙边界法,起动转矩

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Abstract:

设计了一种实心转子永磁同步电机,并提出了适用于该类电机的场路耦合运动时步有限元分析方法,解决了实心转子电机中转子电阻难以准确计算的问题。该方法考虑了转子电阻随转差的变化,给出了外电路与电磁场耦合的时步有限元分析方法,采用运动气隙边界法解决转子运动问题,与机械运动方程相结合,对电机的瞬态过程进行仿真。应用上述方法对自行设计的22kW实心转子永磁同步电机的性能进行分析,空载反电动势和起动转矩的计算结果与样机的实验结果吻合较好,表明本文提出的方法准确有效,并可用于其他类型的实心转子电机的性能分析。

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