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消弱永磁驱动器齿槽转矩的斜极优化方法

, PP. 27-32

Keywords: 永磁驱动器,斜磁极,响应面法,有限元法,粒子群算法

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Abstract:

采用斜极结构消弱永磁驱动器的齿槽转矩,利用解析方法推导出具有斜极结构的永磁驱动器齿槽转矩解析表达式。采用Ansys有限元仿真和中心复合实验设计获取响应值,根据响应值建立斜极结构永磁驱动器的二阶响应面回归模型。并基于该模型,选择永磁驱动器齿槽转矩最小为目标,利用粒子群优化算法对其主要结构参数进行优化,得出最优结构参数组合。对斜极结构永磁驱动器分别进行了解析和优化,结果表明,优化方法可以显著地消弱永磁驱动器的齿槽转矩,避免产生转矩波动,提高了系统的控制准确度,证明所得出的结论是正确、有效的。

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