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考虑开槽时永磁无刷直流电机气隙磁场的解析计算

DOI: 10.13334/j.0258-8013.pcsee.2014.S.027, PP. 182-188

Keywords: 永磁无刷直流电机,磁场,面电流,子区域模型

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Abstract:

该文推导了考虑开槽情况下永磁无刷直流电机空载磁场的解析计算方法。该方法通过磁场叠加原理把永磁体的等效面电流和子区域模型有机的结合在一起,根据边界条件和子区域的接口条件求解电机的磁场。将有限元计算结果和实验结果分别与解析计算结果进行对比,结果表明该文所推导的解析方法具有较高的精度。该推导和分析过程可以推广至任意磁极形状的表贴式永磁电机磁场计算。

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