关键词: 外转子永磁同步电机, 机械调磁, 弱磁, 损耗分析

Abstract: A new type of magnetic flux leakage permanent magnet synchronous motor with mechanical device based on centrifugal movement was proposed.By using ANSYS Maxwell software, the effect of magnetic flux regulation was analyzed by finite element method,the motor parameters under different weak magnetic were obtained,and the loss of the motor was analyzed. The results show that the outer rotor permanent magnet synchronous with a mechanical device can effectively adjust motor air-gap magnetic field,and it has better performance of flux weakening.Under the effect of flux weakening,the loss of the motor was reduced,which can improve the average efficiency of the motor.

Key words: outer rotor permanent magnet synchronous motors, , mechanical flux-switching,, flux weakening, , analysis of loss