无槽永磁直线同步电动机磁场分析

Analysis of Magnetic Field in Slotless Permanent Magnet Linear Synchronous Motor

采用等效磁化电流法分析无槽永磁直线同步电动机初、次级的等效电流密度;通过二维解析法和有限元法分析电动机不同气隙时的气隙磁场变化。通过以上两种方法的比较,得出气隙磁场变化的结论,可供研究设计该类电机的人员参考。

This paper is presented for analysis of magnetic field in slotless permanent magnet linear synchronous motor. Current densities of primary and secondary are made use of analysis of equivalent magetizing current method. At the airgap, magnetic field change is analysed through two-dimensional analytical method and two-dimensional finite-element method. Through comparsion of two methods, conclusion of magnetic field change is obtained. This paper may supply referrence for investigation and design of the motor.