电工技术学报2016，Vol.31Issue(23)：1-8,8.
基于改变定子齿槽参数的异步起动永磁同步电动机齿槽转矩削弱措施研究
Study of Reduction Methods of Cogging Torque in Line-Start Permanent Magnet Synchronous Motor by Changing the Parameters of Stator Teeth and Slots
摘要
Abstract
Cogging torque is a common problem to permanent magnet machines,and it is one of the issues that should be paid attention to at the design stage.The line-start permanent magnet synchronous motor(LSPMSM)has the self-starting ability by utilizing the asynchronous torque which generated by squirrel-cage,but the cogging torque will adversely affect the operation of LSPMSM.The methods of reducing the cogging torque of LSPMSM by changing the parameters of stator teeth and slots are studied.The analytical expressions of the cogging torque with the changing of the stator tooth width,the pairing of the stator teeth and the pairing of the stator slots are deduced.The corresponding methods of determining the suitable parameters of stator teeth and slots that can effectively reduce the cogging torque of LSPMSM are given.The calculation by finite element method(FEM)shows that the above methods can effectively reduce the cogging torque of LSPMSM and do not significantly affect the motor performance.关键词
异步起动永磁同步电动机/齿槽转矩/定子齿槽参数/削弱措施/电机性能Key words
Line-start permanent magnet synchronous motor/cogging torque/the parameters of stator teeth and slots/reduction methods/motor performance分类
信息技术与安全科学引用本文复制引用
唐旭,王秀和,田蒙蒙,孟笑雪..基于改变定子齿槽参数的异步起动永磁同步电动机齿槽转矩削弱措施研究[J].电工技术学报,2016,31(23):1-8,8.基金项目
国家自然科学基金资助项目(51577107). （51577107）
