基于等效磁化电流法的永磁同步直线电机静态气隙磁场计算

Calculate static gap magnetic field distribution for permanent magnet synchronous linear motor through equivalent magnetizing current method

以1FN3100永磁同步直线电机为研究对象,基于解析法,给出了该直线电机二维稳态场的气隙磁场分布的计算公式,在此基础上,利用MATLAB数学工具绘出了1FN3100永磁同步直线电机的气隙磁密分布曲线。该方法为研究直线电机隔磁防护、推力波动、涡流损耗等热点和难点问题打下了基础。

In the paper object of study is 1FN3100 PMLSM. Computional formula of air-gap’s magnetic flux density static distribution is obtained by means of analytic method, then plot air-gap’s magnetic flux density distribution curve for 1FN3100 PMLSM by MATLAB. It provided foundation for future studying PMLSM in popular and difficult field, such as magnetic isolation protection, thrust fluctuation, eddy current loss.