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近极槽数表贴式永磁同步电机齿顶漏磁分析与计算

, PP. 114-118

Keywords: 近极槽数,表贴式永磁同步电机,平均每极齿顶漏磁,极弧系数,半单元电机

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Abstract:

近极槽数表贴式永磁同步电机的齿顶漏磁比较大,凭传统经验选取齿顶漏磁系数,再利用有限元软件仿真的方法延长了电机设计周期,即齿顶漏磁的快速、准确计算十分必要。根据半单元电机内每个齿的齿顶漏磁各自不同的特点,提出了平均每极齿顶漏磁的计算方法。将半单元电机内的所有齿的齿顶漏磁规算到每个磁极下,推导出了平均每极齿顶漏磁和齿顶漏磁系数的解析表达式。在此基础上进一步研究了电机极数和极弧系数的变化对齿顶漏磁系数的影响。平均每极齿顶漏磁解析法计算结果与有限元软件仿真结果一致,验证了平均每极齿顶漏磁计算方法的正确性和准确性。

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