Analytical solution for rotor eddy-current losses in a slotless permanent-magnet motor: The case of current sheet excitation

被引：57
|
作者：
Markovic, Miroslav [1 ]
Perriard, Yves [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Integrated Actuators Lab, LAI, CH-1015 Lausanne, Switzerland
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 03期
关键词：
eddy currents; modulation; permanent magnet;
D O I：
10.1109/TMAG.2007.914620
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present an analytical solution for the magnetic field, induced eddy currents, and the corresponding losses generated in the rotor of a slotless permanent-magnet (PM) motor. The field excitation is a current sheet placed at the stator interior surface. The solution is based on an analytical solution of the diffusion equation using double Fourier series and in the complex domain. The first and the second Fourier series correspond to the time and space harmonics, respectively. We have analyzed the effect of each time harmonic in detail, and verified the results with FEM software.
引用
收藏
页码：386 / 393
页数：8
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