高速永磁同步电机转子冲片的优化设计  

Optimal Design of Rotor Lamination of High-Speed PMSM

作　　者：季胜蓝 邱卫东 蒋志融 Ji Shenglan;Qiu Weidong;Jiang Zhirong(Jiangsu Dongyuan Electrical Group Co.,Ltd.,Nantong 226341,China)

机构地区：[1]江苏东源电器集团股份有限公司,江苏南通226341

出　　处：《防爆电机》2022年第5期3-5,26,共4页Explosion-proof Electric Machine

基　　金：南通市科技项目2020-基础研究类(JC2020147)。

摘　　要：为了提高现有高速永磁同步电机转子冲片的机械强度,确保电机安全可靠运行。首先,基于等效质量法建立了转子冲片最大应力的数学表达式。然后,根据建立的数学表达式对实例电机的转子强度进行了解析计算并依据有限元法验证了该表达式的准确性。最后,为了改善现有转子冲片的应力分布状况,对永磁体进行了分槽处理并对该优化方案进行了仿真计算,仿真结果表明:该方案可有效降低隔磁桥处的离心力,提高转子冲片的机械强度。实例电机转子冲片机械强度的优化过程为高速永磁同步电机系列化的研发提供了参考依据。In order to improve the mechanical strength of rotor lamination of current highspeed PMSM and ensure safe and reliable operation of the electrical motor,the mathematical expression of maximum stress of rotor lamination was firstly established based on the equivalent mass method.The mechanical strength of prototype motor rotor was then analyzed and calculated according to the established expression,and its correctness was verified by finite-element method.The permanent magnets were finally segmented to improve the stress distribution situation of current rotor lamination.The optimum program is simulated and calculated,and the result shows that the program can reduce the centrifugal force at magnetic separation bridge and improve the mechanical strength of rotor lamination.The optimization procedure of mechanical stress of prototype motor rotor lamination provides the reference basis for the series research and development of high-speed PMSM.

关 键 词：机械强度 转子冲片 应力分析 有限元仿真 

分 类 号：TM302[电气工程—电机]