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分数槽集中绕组永磁电机在模块化级联电机系统上的应用

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Keywords: 分数槽,集中绕组,永磁电机,级联电机系统,转矩密度

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Abstract:

模块化级联电机系统是将一个电机单元作为一个模块,多个电机模块串联起来工作的系统,只改变电机数目便可满足不同功率的需求,分数槽集中绕组电机适合作为模块化级联电机系统的单模块电机。本文通过分析分数槽集中绕组永磁电机的槽极数的配合规律,设计了满足系统性能指标的两台不同性能的单模块电机,并对其磁动势进行谐波分析。通过仿真计算了涡流损耗,分析了槽口宽度和永磁体分块对涡流损耗的影响,得到了系统的效率Map图。最后,对系统进行了实验验证,并与一参考样机对比,结果表明,模块化级联电机系统采用分数槽集中绕组永磁电机,能有效减小电机尺寸,降低电机重量,提高系统的转矩密度。

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