It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when PM shifting is adopt.
因此要通过磁极偏移减小齿槽转矩，除了减小永磁体对称时存在的齿槽转矩谐波外，还要减小新引入的低次谐波。
It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when PM shifting is adopt.
因此要通过磁极偏移减小齿槽转矩，除了减小永磁体对称时存在的齿槽转矩谐波外，还要减小新引入的低次谐波。
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