INSTANTANEOUS MAGNETIC-FIELD DISTRIBUTION IN BRUSHLESS PERMANENT-MAGNET DC MOTORS, .1. OPEN-CIRCUIT FIELD

被引：483

作者：

ZHU, ZQ ^{[1
]}

HOWE, D ^{[1
]}

BOLTE, E ^{[1
]}

ACKERMANN, B ^{[1
]}

机构：

[1] PHILIPS GMBH,FORSCHUNGSLAB,W-5100 AACHEN,GERMANY

来源：

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

关键词：

D O I：

10.1109/20.195557

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：

An analytical technique for predicting the instantaneous magnetic field distribution in the airgap region of radial-field topologies of brushless permanent magnet dc motors, under any specified load condition and accounting implicitly for the stator winding current waveform and the effect of stator slot-openings, has been developed. It is based on the superposition of the component fields due to the permanent magnet and the stator excitation. tn this paper, which is one of a series of four, a 2-d analytical method for predicting the open-circuit airgap field distribution in both internal and external rotor radial-field motor topologies is presented. It involves the solution of the governing field equations in polar coordinates in the annular airgap/magnet region of a multi-pole slotless motor in which the magnets are assumed to have uniform radial magnetization and a constant relative recoil permeability. Results for various radial-field motors are compared with predictions from corresponding finite element analyses.

引用

页码：124 / 135

页数：12

共 14 条

[1] PREDICTION OF NO-LOAD FLUX-DENSITY DISTRIBUTION IN PERMANENT-MAGNET MACHINES [J].