Analytical calculation of no-load voltage waveforms in machines based on permanent-magnet volume integration

被引：6

作者：

Dubois, Maxime R. ^{[1
]}

Mailloux, Guillaume ^{[2
]}

机构：

[1] Univ Laval, Dept Elect & Comp Engn, Quebec City, PQ G1V 0A6, Canada

[2] Roche Canada, Rimouski, PQ G5L 3A1, Canada

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2008年 / 44卷 / 05期

关键词：

analytical calculation; Halbach arrays; permanent-magnet machines;

D O I：

10.1109/TMAG.2008.918920

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 develop an analytical expression for predicting electromotive force (EMF) waveforms resulting from permanent magnets (PMs) in electrical machines. The expressions for the flux linkage are based on a volume integral over the magnet volume, rather than the usual surface integral over the coil. The proposed method consists of applying a virtual current in the coil of the machine and calculating the magnetic field generated inside the PM volume. The EMF waveform is obtained by taking the derivative of the flux linkage with respect to time. We present analytical expressions of the EMF for various PM shapes and Halbach magnetization patterns. We tested a total of four configurations of PMs, and the experimental waveforms confirmed the validity of the expressions obtained theoretically.

引用

页码：581 / 589

页数：9

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