Effects of magnetically induced vibration force in brushless permanent-magnet motors

被引：59

作者：

Kim, U ^{[1
]}

Lieu, DK

机构：

[1] Hitachi Global Storage Technol Inc, San Jose, CA 95193 USA

[2] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2005年 / 41卷 / 06期

关键词：

asymmetric and symmetric motor; cogging torque; frequency spectrum; magnetic force imbalance; magnetically induced vibration; permanent-magnet motor; perturbation method; rotor eccentricity;

D O I：

10.1109/TMAG.2005.847628

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：

This paper discusses magnetic force imbalance and cogging torque in permanent-magnet motors under both static and dynamic rotor eccentricity. The characteristic frequencies of magnetic force imbalance and cogging torque due to rotor eccentricity can be used for fault diagnostics and quality control of permanent-magnet motors. The paper derives analytical expressions for their characteristic frequencies. The validity of the expressions has been confirmed by finite-element analyses.

引用

页码：2164 / 2172

页数：9

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