低速大推力圆筒永磁直线电动机磁场分析

摘要

An approach for calculating the air-gap magnetic field of a low speed and high thrust tubular permanent magnet linear motor was introduced under some rational assumptions. The derivations were based on two-dimensional field theory. This approach can easily be realized using a simple computer program. The results obtained by the approach were verified by comparison with the results obtained by finite element method.%介绍了一种在合理的假设条件下计算低速大推力圆筒永磁直线电动机磁场的方法.利用磁场分析法,用许克变换直接解算空载、负载气隙磁密波形,并同非线性有限元分析结果进行了比较,得出了该方法的可行性.而计算量仅相当于一般的磁路法,并且容易在计算机上编程实现.