【摘要】 介绍了亥姆霍兹方程的多极理论，首次把这个理论应用于实际工程问题，求解了１．５ ｋＷ稀土永磁同步屏蔽电机屏蔽套（厚度小于１ｍｍ）的涡流问题．经过实验证明，利用多级理论可以求解电磁场问题，而且计算结果比较准确．更多还原

【Abstract】 The Multiple Multipole theory of Helmholtz Equation was introduced in this paper. Taking a 1.5kW Permanent Magnet Electric Machine as an example, the Eddy - current of its liners was calculated with the theory. Testing results proved that the calculated result was correct.更多还原