摘要
为了削弱双转子永磁电机齿槽转矩,研究一种既可以缩小齿槽转矩,且保证其初始相位和周期大小不变的外转子磁极偏移方法,同时给出磁极偏移角度寻优;根据内、外转子相位关系计算定子外槽偏移角度,内、外转子齿槽转矩反相位消去使永磁电机的合齿槽转矩降为最低。用有限元对该方法进行了仿真验证,结果表明,该方法可有效削弱双转子电机齿槽转矩。
For reducing the cogging torque of double-rotor permanent magnet motors （ DRPMM）, a novel method was discussed which could minimize the cogging torque and ensured its initial phase and period of the cycle not be changed at the same time. The optimization of the pole shift angle was also provided. According to the inner and outer rotor phase rela- tions, the offset angle of the stator slot was calculated that could enable the cogging torque of the inner rotor and the outer rotor to weaken each other. The finite element method was used to verify this solution. The simulation results show that the new method can effectively reduce the cogging torque of DRPMM.
出处
《微特电机》
北大核心
2017年第6期27-30,共4页
Small & Special Electrical Machines
基金
湖北省自然科学基金研究项目(2014CFC1143)
水电机械设备设计与维护湖北省重点实验室开放基金(2016KJX14)
三峡大学人才启动基金项目(KJ2013B078)
三峡大学研究生科研创新基金项目(2015CX060
SDYC2016047)
关键词
双转子电机
齿槽转矩
磁极偏移
槽偏移
有限元分析
double-rotor permanent magnet motor（DRPMM）
cogging torque
pole shifting
cogging shifting
finite element analysis
