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Online optimal flux-weakening control of permanent-magnet brushless AC drives

Zhu, Z.Q., Chen, Y.S. and Howe, D. (2000) Online optimal flux-weakening control of permanent-magnet brushless AC drives. IEEE Transactions on Industry Applications, 36 (5). pp. 1661-1668. ISSN 0093-9994

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Abstract

An enhanced online optimal control strategy, which maximizes the flux-weakening performance of a brushless AC motor, is described, and applied to motors having different rotor topologies: interior (radial or circumferential), inset, and surface-mounted magnet. It enables the maximum inherent power capability of a brushless AC motor to be achieved independent of any variation in its parameters, and facilitates maximum efficiency over the entire speed range. It also results in good transient dynamic performance, since it is coupled with feedforward vector control based on optimal current profiles.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2000 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: brushless ac drive, flux weakening, optimal control, permanent-magnet machine
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: 16 Dec 2005
Last Modified: 04 Jun 2014 14:25
Published Version: http://dx.doi.org/10.1109/28.887219
Status: Published
Refereed: Yes
Identification Number: 10.1109/28.887219
URI: http://eprints.whiterose.ac.uk/id/eprint/890

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