In this paper, a nonlinear variable structure magnetic circuit (VSMC) modeling is developed for doubly salient permanent magnet (DSPM) machine and the air-gap specific permeance is formulated.

• 建立了双凸极变速永磁电机的变结构等效磁路模型，推导了气隙比磁导计算公式，通过求解所建立的非线性等效磁路方程，以计算电机的静态特性。