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Iron loss in permanent-magnet brushless AC machines under maximum torque per ampere and flux weakening control

Zhu, Z.Q., Chen, Y.S. and Howe, D. (2002) Iron loss in permanent-magnet brushless AC machines under maximum torque per ampere and flux weakening control. IEEE Transactions on Magnetics, 38 (5 (Par). pp. 3285-3287. ISSN 0018-9464


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The airgap flux density distribution, flux density loci in the stator core, and the associated iron loss in two topologies of brushless AC motor, having a surface-mounted magnet rotor and an interior-mounted magnet rotor, respectively, are investigated when operated under maximum torque per ampere control in the constant torque mode and maximum power control in the flux-weakening mode. It is shown that whilst the interior magnet topology is known to be eminently suitable for flux-weakening operation, due to its high demagnetization withstand capability, its iron loss can be significantly higher than for a surface-mounted magnet machine.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2002 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: flux-weakening, permanent magnet machines, iron loss
Institution: The University of Sheffield
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: 04 Jun 2014 19:54
Published Version: http://dx.doi.org/10.1109/TMAG.2002.802296
Status: Published
Refereed: Yes
Identification Number: 10.1109/TMAG.2002.802296
URI: http://eprints.whiterose.ac.uk/id/eprint/872

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