DocumentCode
42707
Title
Cogging Torque Reduction by Slot-Opening Shift for Permanent Magnet Machines
Author
Ting Liu ; Shoudao Huang ; Jian Gao ; Kaiyuan Lu
Author_Institution
Inst. of Electr. & Inf. Eng., Hunan Univ., Changsha, China
Volume
49
Issue
7
fYear
2013
fDate
Jul-13
Firstpage
4028
Lastpage
4031
Abstract
In this paper, an effective cogging torque reduction method based on shifting the slot-openings is presented. Stator teeth are divided into groups and proper slot-opening shift is applied for each group. The cogging torque can then be greatly reduced while the back-EMF waveforms remain symmetrical. No additional back-EMF harmonic components will be introduced by this method. Analytical analysis revealing the working principle of this method is given, which gives a clear guide about how this method may be applied to different permanent magnet machines.
Keywords
permanent magnet machines; stators; torque; back-EMF harmonic components; back-EMF waveforms; cogging torque reduction; permanent magnet machines; slot opening shift; stator teeth; Forging; Harmonic analysis; Indexes; Permanent magnet machines; Rotors; Stators; Torque; Cogging torque; permanent magnet machine; slot-opening shift;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2013.2239977
Filename
6559322
Link To Document