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计及定子开槽的插入式永磁电机转子偏心空载气隙磁场全局解析迭代模型

, PP. 66-76

Keywords: 解析迭代,插入式,转子偏心,空载气隙磁场,偏心力,齿槽转矩

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Abstract:

采用解析迭代法研究定子开槽插入式永磁电机转子偏心气隙磁场全局模型。首先采用摄动法计算无槽定子、转子偏心气隙磁场;接着,利用以上结果给出定子开槽区域的边界条件,计算定子开槽后的气隙磁场;然后获得定子开槽后的边界条件,再次计算。经过多次迭代得到最终气隙磁场分布。本模型能够方便地计算各种偏心情况下电机的磁场分布。将本模型计算的气隙磁通密度分布、偏心力和齿槽转矩与有限元模型比较,结果吻合,表明了该全局解析模型的正确性和有效性。

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