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Combined radial and axial permanent magnet motors using soft magnetic composites

Lookup NU author(s): Professor Alan Jack, Professor Barrie Mecrow, Christopher Maddison


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The design, construction and testing of a permanent magnet machine which has both axial and radial magnets and is the drive motor for an electric bicycle are discussed. The armature of a machine with multiple axes of magnetization must be capable of carrying alternating flux in all three-coordinate directions. Bonded iron powder has isotropic properties and its use for the core makes the motor possible. The result is that a very large magnet surface area is possible within the machine envelope, leading to high specific output per unit volume or weight.

Publication metadata

Author(s): Jack AG, Mecrow BC, Maddison CP

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Ninth International Conference on Electrical Machines and Drives.

Year of Conference: 1999

Pages: 25-29

ISSN: 0537-9989

Publisher: IEEE


DOI: 10.1049/cp:19990984

Library holdings: Search Newcastle University Library for this item

ISBN: 0852967209