In order to improve the stability of EV output torque,a method of optimizing the rotor structure of permanent magnet synchronous motor based on ANSYS is proposed.According to the power performance requirements of a certain model,the structural parameters of the vehicle permanent magnet synchronous motor are designed and modeled by using Motor-CAD software.Take the permanent magnet width,pole arc angle and stator auxiliary groove depth as the optimization parameters.The determination of the optimal set of structural parameters.The optimization results show that the torque pulse is reduced by 20.3%,and the reverse electromotive force distortion rate is reduced by 52.5%.
permanent magnet synchronous motordistortion rate of back electromotive forcetorque rippleMotor-CAD
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