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Lookup NU author(s): Dr Dave Atkinson, Professor Alan Jack, Professor Barrie Mecrow
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There is much interest in the use of electric drives for aeroengine fuel pumps on the more electric aircraft. As a safety critical system the drive must possess fault tolerant properties in order to meet the reliability requirements. Previous work has resulted in the development of a six-phase fault tolerant permanent magnet drive for this application. This drive exhibits fault tolerance in both the motor and power electronics but has the weakness of dependence on a single shaft position sensor. This is addressed through the use of a position estimation scheme. The sensorless scheme makes use of a flux linkage-current-angle model to estimate the rotor position. The fault tolerant drive has six independent phases and the voltage and current measurements from each of these phases are used by the estimation scheme. Two different position estimation algorithms are examined based on 'per-phase' and 'all-phase' approaches.
Author(s): Green S, Atkinson DJ, Jack AG, Mecrow BC, King A
Publication type: Article
Publication status: Published
Journal: IEE Proceedings: Electric Power Applications
Year: 2003
Volume: 150
Issue: 2
Pages: 117-125
Print publication date: 01/03/2003
ISSN (print): 1350-2352
ISSN (electronic): 1751-8679
Publisher: Institution of Engineering and Technology
URL: http://dx.doi.org/10.1049/ip-epa:20030153
DOI: 10.1049/ip-epa:20030153
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