Influence of Cogging Torque Reduction Method on Torque Ripple in a Surface-Mounted Permanent Magnet Synchronous Motor

被引：12
|
作者：
Kim, Taewoo [1 ]
Chang, Junghwan [1 ]
机构：
[1] Dong A Univ, Pusan 604714, South Korea
来源：
JOURNAL OF MAGNETICS | 2012年 / 17卷 / 02期
关键词：
back EMF; cogging torque; harmonics; synchronous motor; torque ripple; DESIGN TECHNIQUES;
D O I：
10.4283/JMAG.2012.17.2.109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The torque characteristics of a surface-mounted permanent magnet synchronous motor (SPMSM) are analyzed in this study. The harmonics of the back electromotive force (EMF) and cogging torque are analyzed by the finite element method to study their effects on the torque ripple. Although low cogging torque can be achieved by varying geometric parameters such as the permanent magnet (PM) offset and notch depth on the stator teeth, the torque ripple is increased in some cases. The analysis results show that the ripple of the generated torque is determined by not only the amplitudes but also the phases of harmonics for the back EMF and cogging torque.
引用
收藏
页码：109 / 114
页数：6
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