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基于定子齿削角的近极槽永磁同步电机振动噪声削弱方法

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Keywords: 近极槽,表贴式永磁同步电机,振动噪声,有限元法,定子齿削角

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Abstract:

对于近极槽永磁同步电机而言,其振动噪声特性具有许多的特殊性。本文首先分析了分数槽永磁同步电机在定子齿削角时永磁体产生的气隙磁通密度分布表达式,然后利用所推导的解析表达式计算了在不同齿削角度情况下的各次谐波幅值,最后分别应用有限元法与解析公式计算分析了齿削角方法对电机振动噪声所带来的影响。结果表明,对定子应用齿削角的方法可有效降低近极槽表贴式永磁同步电机的振动噪声。

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