Cogging Torque Reduction by Slot-Opening Shift for Permanent Magnet Machines

Ting Liu, Shoudao Huang, Jian Gao, Kaiyuan Lu

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70 Citationer (Scopus)

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.
OriginalsprogEngelsk
TidsskriftI E E E Transactions on Magnetics
Vol/bind49
Udgave nummer7
Sider (fra-til)4028-4031
Antal sider4
ISSN0018-9464
DOI
StatusUdgivet - 2013

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