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永磁开关磁链直线电机若干优化设计方法

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Keywords: 永磁开关磁链电机,直线电机,推力波动,容错性,模块化设计

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Abstract:

永磁开关磁链直线电机除具有常规永磁直线电机的优点外,还具有显著的成本优势,因此具有很好的应用前景。本文在简要说明该类电机的基本结构与原理之后,指出通过合理调整初级与次级铁心的外形尺寸来减小反电动势谐波含量与电机推力波动,采用磁桥结构提高弱磁控制能力和初级铁心机械强度,借鉴旋转电机齿槽力矩的抑制方法来削弱推力波动的齿槽效应成分,并提出辅助齿结构来有效削弱推力波动的端部效应成分,最后还给出了一种模块化结构形式来提高电机的容错性以及边端线圈与内部线圈的对称性。

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