INSTANTANEOUS MAGNETIC-FIELD DISTRIBUTION IN BRUSHLESS PERMANENT-MAGNET DC MOTORS, .3. EFFECT OF STATOR SLOTTING

被引：519

作者：

ZHU, ZQ

HOWE, D

机构：

[1] Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 4DU, P.O. Box 600, Mappin Street

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1993年 / 29卷 / 01期

关键词：

D O I：

10.1109/20.195559

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：

A method for modelling the effect of stator slotting on the magnetic field distribution in the airgap/magnet region of a radial-field brushless permanent magnet dc motor equipped with a surface mounted magnet rotor is presented to enable the analytical prediction of the open-circuit, armature-reaction, and resultant magnetic field distribution under any specified load condition. It is shown that the conventional ''1-d'' relative permeance model, which is used extensively in the analysis of induction and synchronous machines, is inappropriate for permanent magnet motors, for which the proposed analytical method accounts for stator slot openings by the application of the conformal transformation method and a ''2-d'' relative permeance function. The results of predictions from the analysis are compared with corresponding finite element analyses.

引用

页码：143 / 151

页数：9

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