电工技术学报2016，Vol.31Issue(z1)：45-52,8.
定子开槽永磁同步电机气隙比磁导解析计算
Analytical Calculation of Air-Gap Relative Permeance in Slotted Permanent Magnet Synchronous Motor
摘要
Abstract
The combination of mirror image method and conformal transformation is used to calculate the air-gap relative permeance of slotted permanent magnet synchronous motor (PMSM). As a mirror, the surface of the ferromagnetic rotor is smooth. An image can be created from the air-gap of the slotted PMSM, and these two air-gap formed the analytical model. The air-gap relative permeance formula can be obtained by several conformal transformation. The analytical model could consider the slot effect on the radial and tangential components of the air gap magnetic field, and its analytical formula can be used to predict excitation magnetic field, armature magnetic field, electromagnetic force and cogging torque of the slotted PMSM. Based on the analytical model, air-gap relative permeance is solved on the specified path and in the region of a slotted PMSM. Compared with the finite element results, the accuracy of the analytical method is demonstrated.关键词
永磁同步电机/气隙比磁导/开槽定子/镜像/保角变换Key words
Permanent magnet synchronous motors/air-gap relative permeance/slotted stator/mirror image/conformal transformation分类
信息技术与安全科学引用本文复制引用
于吉坤,李立毅,张江鹏,曹继伟..定子开槽永磁同步电机气隙比磁导解析计算[J].电工技术学报,2016,31(z1):45-52,8.基金项目
国家杰出青年科学基金（51225702）和国家科技重大专项（2012-ZX04001051）资助项目。 （）
