电动汽车用内置式永磁同步电动机转子结构优化  

Rotor Structure Optimization of Interior PMSM Used in Electric Vehicle

作　　者：王晓远[1] 严长伟 

机构地区：[1]天津大学,天津300072

出　　处：《微特电机》2014年第8期26-29,33,共5页Small & Special Electrical Machines

摘　　要：永磁同步电动机具有功率密度高、调速性能好的特点,成为电动汽车用电机的一个很好的选择。设计的电动汽车用内置式永磁同步电动机采用6极36槽双层绕组结构。利用有限元法分别对"一"型、"V"型、"V一"型结构的性能进行分析,通过比较,选择最适合于电动汽车用的电机转子结构进行优化。同时将采用定子斜槽技术降低电机的空载反电势谐波含量和电机的齿槽转矩。Permanent magnet synchronous motor （PMSM） has the characteristics of high power density and good speed control performance,and it becomes a good choice for electric vehicle.The interior PMSM with 6 pole/36 slot and double -layer was designed.Using finite element analysis （FEA）,the three rotor structures of ＂-＂ type,＂Ⅴ＂ type and ＂Ⅴ-＂type were analyzed,and the most optimal structure for electric vehicle was chosen for further optimizing.Furthermore,skewed slot of stator was used to reduce the harmonic content of no-load EMF and cogging torque.

关 键 词：永磁同步电动机 有限元法 转子结构 定子斜槽 

分 类 号：TM351[电气工程—电机] TM341