Cogging Torque Reduction by Elementary-Cogging-Unit Shift for Permanent Magnet Machines

被引：22
|
作者：
Gao, Jian [1 ]
Wang, Guang [1 ]
Liu, Xiao [1 ]
Zhang, Wenjuan [2 ]
Huang, Shoudao [1 ]
Li, Huimin [1 ]
机构：
[1] Hunna Univ, Coll Elect & Informat Engn, Changsha 410082, Hunan, Peoples R China
[2] Changsha Univ, Dept Elect & Elect Engn, Changsha 410002, Hunan, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2017年 / 53卷 / 11期
关键词：
Cogging torque; elementary-cogging-unit (ECU); permanent magnet (PM) machines; reduction; shift; MOTORS;
D O I：
10.1109/TMAG.2017.2712799
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 describes a method to reduce cogging torque in permanent magnet (PM) machines by shifting elementary-cogging unit (ECU). The ECU division principle and the feature of cogging torque produced by ECU are also discussed. The proper shift angles for each ECU are deduced according to both fractional and integral slot number per pole, by which any order harmonic cogging torque could he eliminated without the introduction of any new harmonic torque. This paper investigates the validity of the effectiveness of ECU shifting techniques using PM machines with different match of slot number per pole in 2-D finite-element models.
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页数：5
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