Cogging Force Reduction of Double-Sided Linear Flux-Switching Permanent Magnet Machine for Direct Drives

Author

Qiang Liu ; Haitao Yu ; MinQiang Hu ; Chunyuan Liu ; Jing Zhang ; Lei Huang ; Shigui Zhou

Author_Institution

Eng. Res. Center of Motion Control of MOE, Southeast Univ., Nanjing, China

Volume

49

Issue

5

fYear

2013

fDate

May-13

Firstpage

2275

Lastpage

2278

Abstract

This study proposes a double-sided linear flux-switching permanent magnet machine for direct drives in precision servo applications. The method of asymmetry distribution of stator teeth (ADST) is introduced to reduce the cogging force. Moreover, cogging force, back-EMFs, and thrust force are calculated by using finite element analysis. In addition, the performance comparison is carried out to verify the accuracy and effectiveness of the method of cogging force reduction. Finally, the experiment confirms the reasonability and feasibility of the ADST method.

Keywords

electric potential; finite element analysis; linear machines; permanent magnet machines; stators; asymmetry distribution method; back-EMF; cogging force reduction method effectiveness; direct drives; double-sided linear flux-switching permanent magnet machine; finite element analysis; precision servo applications; stator teeth; thrust force; Cogging force; direct drives; double-sided; flux-switching permanent magnet; linear machine;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2241409

Filename

6514793