Analytical modeling of eddy-current losses caused by pulse-width-modulation switching in permanent-magnet brushless direct-current motors

被引：59

作者：

Deng, F ^{[1
]}

Nehl, TW

机构：

[1] Gen Motors Corp, Delphi Energy & Engine Management Syst, Flint, MI 48556 USA

[2] Gen Motors Corp, Ctr Res & Dev, Warren, MI 49090 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 05期

关键词：

eddy-current loss; permanent magnet brushless dc motors; pulse width modulation switching; space harmonics;

D O I：

10.1109/20.718535

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 [电气工程]; 0809 [电子科学与技术];

摘要：

An analytical approach is developed to predict the inverter high frequency pulse width modulation (PWM) switching caused eddy-current losses in a permanent magnet brushless de motor. The model uses polar coordinates to take curvature effects into account, and is also capable of including the space harmonic effect of the stator magnetic field and the stator lamination effect on the losses. The model was applied to an existing motor design and was verified with the finite element method, Good agreement was achieved between the two approaches. Hence, the model is expected to be very helpful in predicting PWM switching losses in permanent magnet machine design.

引用

页码：3728 / 3736

页数：9