永磁同步电机转子分段斜极的分析研究  

Study on Step Skewing of Rotor for Permanent Magnet Synchronous Motor

作　　者：彭俊[1] 符敏利[1] 陈致初 何思源[1] 

机构地区：[1]株洲南车时代电气股份有限公司,湖南株洲412001

出　　处：《大功率变流技术》2012年第1期50-53,58,共5页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：转子分段斜极能有效削弱齿谐波,改善永磁电机齿槽转矩和转矩波动。文章提出了转子分段斜极最佳斜极角度的计算方法;基于有限元分析,对一台样机在不同斜极分段数时的空载反电势、齿槽转矩及负载转矩进行了计算比较,得出了转子分段数的选择原则。试验结果验证了结论的正确性。Step skewing of rotor magnets is an efficient method for reducing harmonics and minimizing cogging torque and torque ripple of PMSM.It presents a calculation method of best step skewing angle.Based on finite element analysis,no-load EMF,cogging torque and load torque of a prototype motor with different step numbers are calculated and compared,the principle of choosing step numbers is then obtained.Experimental results verify the correctness of the conclusion.

关 键 词：永磁同步电机 转子分段斜极 有限元分析 

分 类 号：TM341[电气工程—电机]