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Analysis of cogging torque in brushless machines having nonuniformly distributed stator slots and stepped rotor magnets

Zhu, Z.Q., Ruangsinchaiwanich, S., Ishak, D. and Howe, D. (2005) Analysis of cogging torque in brushless machines having nonuniformly distributed stator slots and stepped rotor magnets. IEEE Transactions on Magentics, 41 (10). pp. 3910-3912. ISSN 0018-9464

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Abstract

A simple analytical technique is proposed for synthesizing the cogging torque waveform of a permanent magnet brushless machine from the cogging torque waveform that is associated with a single stator slot. The machine may have either uniformly or nonuniformly distributed stator slots and/or a skewed rotor, in which the skew is realized by circumferentially displacing the magnets of each pole. The technique is validated by finite element analysis and measurements.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: analytical modeling, brushless machines, cogging torque, finite element, permanent magnet
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
Depositing User: Sherpa Assistant
Date Deposited: 12 Dec 2005
Last Modified: 08 Feb 2013 16:48
Published Version: http://dx.doi.org/10.1109/TMAG.2005.854968
Status: Published
Refereed: Yes
Identification Number: 10.1109/TMAG.2005.854968
URI: http://eprints.whiterose.ac.uk/id/eprint/859

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