摘要
在简述齿槽转矩产生机理和抑制方法的基础上,根据解析表达式讨论了磁场谐波对齿槽转矩的影响。在此基础上,建立了时变运动电磁场有限元模型,对不同程度开槽磁极对应的齿槽转矩进行了计算和对比分析。结果表明,适当的磁极开槽可有效削弱永磁电动机的齿槽转矩。
Reduction of cogging torque is one of the design and control focus in the research of permanent magnet motor. The mechanism and reduction methods of cogging torque were reviewed briefly. And then, the effects of electromagnetic filed harmonics on cogging torque were discussed by analytical expressions. In this foundation, the time-varying moving electro-magnetic field model was built up and the cogging torques for different magnetic poles notching were calculated and compared by finite element. The results showed that suitable magnet poles notching could reduce the cogging torque effectively.
出处
《微电机》
北大核心
2008年第12期1-4,共4页
Micromotors
关键词
永磁电动机
齿槽转矩
磁极开槽
有限元法
Permanent magnet motor
Cogging torque
Magnet poles notching
Finite element method
作者简介
高强（1985-），男，硕士研究生，研究方向为永磁电机。
韩力（1963-），男，副教授，硕士生导师，研究方向为电机优化设计，电机电磁场。
