EV Traction Motor의 토크 성능 향상을 위한 노치설계

Abstract

This paper treats method for improving torque performance in Interior Permanent Magnet Synchronous Motor (IPMSM). IPMSM is widely used for traction motor of electric vehicle. This type of motor produce high torque performance and wide range of operation. On the other hand, IPMSM has several disadvantages which are cogging torque and torque ripple. Those can be the causes of noise and vibration. In this paper, we design optimal shape of motor stator for improving torque performance of traction motor for electric vehicle. Notch design is applied to stator and the effects are verified by Finite Element Analysis (FEA).