定子槽口宽度对表贴式永磁同步电机永磁体涡流损耗影响.pdfVIP

Electrical Engineering and Automation December 2012, Volume 1, Issue 1, PP.11-16 Effect of Slot Opening on Eddy Current of Permanent Magnet in Surface Mount Type Permanent Magnetic Synchronous Motor 1 1# 2 Chengning Zhang , Xiaopeng Wu , Yugang Dong 1. National Engineering Laboratory for Electric Vehicle, Beijing 100081, China 2. National Engineering Laboratory for Electric Vehicle, Beijing 100081, China #Email:3120100189@ Abstract Analytic method and finite element method (FEM) are adopted to analyze the effect of slot opening on eddy current loss of permanent magnet in Permanent Magnetic Synchronous Motor (PMSM) applied on electric vehicle; Analytic method, which introduces a parameter considering width of stator slot, is used to determine this influence qualitatively, A 2D finite element model, which references to an existing 200kw PMSM, is built to calculate the eddy current loss by time-stepping finite element method. The results indicate that eddy current of permanent magnet declines with the decreasing of slot opening, providing the theoretical basis for design of PMSM applied on electric vehicle. Keywords: Eddy Current Loss of Permanent Magnet; Slot Opening; Analytic Method; Finite Element Method; PMSM 定子槽口宽度对表贴式永磁同步电机永磁体 涡流损耗影响 * 1 1 2 张承宁 ，吴晓鹏 ，董玉刚 1. 北京理工大学 电动车辆国家过程实验室，北京100081 2. 北京理工大学 电动车辆国家过程实验室，北京100081 摘 要：采用解析法和有限元法结合研究电机定子槽口宽度对电动汽车用高速、高功率永磁同步电机永磁体涡流损耗的 影响；引入槽口宽度影响参数，采用解析法定性确定电机定子槽口宽度对表贴式永磁体涡流损耗的影响。结合现有200kw 高功率电动汽车用永