Direct Drive High Power PMSM Stator Inherent Mode Research

Both electromagnetic noise and mechanical vibration acoustic noise need to be thought over when designing direct drive high power permanent magnet synchronous motors(PMSM). This article proposes the effects of direct drive high power PMSM structure parameters on its stator inherent frequency, and studies it theoretically. Moreover, several models set up with ANSYS soft, some useful conclusions and suggestions are put forward. This paper intends to guide electric machine designers on how to gain a more accuracy stator nature mode of high power PMSM.