Design techniques for reducing the cogging torque in surface-mounted PM motors

被引：605

作者：

Bianchi, N ^{[1
]}

Bolognani, S ^{[1
]}

机构：

[1] Univ Padua, Dept Elect Engn, I-35131 Padua, Italy

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2002年 / 38卷 / 05期

关键词：

AC motors; acoustic noise; cogging torque; detent torque; ripple torque; permanent-magnet machines; permanent-magnet motors; servomotors; synchronous motors;

D O I：

10.1109/TIA.2002.802989

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Several techniques may be adopted in designing surface-mounted permanent-magnet motors in order to reduce the cogging torque. This paper describes various classical and innovative techniques, giving a theoretical justification for each of them. To this aim, a simple original model of the cogging torque mechanism and a Fourier analysis are introduced. As a result, it is highlighted that some techniques are not always utilizable, and some of them may even be deprecatory when not used correctly. In addition, effects of cogging torque elimination on back electromotive force are discussed.

引用

页码：1259 / 1265

页数：7

共 8 条

[1]

Bianchi N, 2000, P ICEM HELS FINL AUG, P1222

[2] Prediction of cogging torque using the flux-MMF diagram technique [J].