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Analysis and design optimization of an improved axially magnetized tubular permanent-magnet machine \ud

By J.B. Wang, D. Howe and G.W. Jewell

Abstract

This paper describes the analysis and design optimization of an improved axially magnetized tubular permanent-magnet machine. Compared with a conventional axially magnetized tubular machine, it has a higher specific force capability and requires less permanent-magnet material. The magnetic field distribution is established analytically in the cylindrical coordinate system, and the results are validated by finite-element analyses. The analytical field solution allows the analytical prediction of the thrust force and back-electromotive force (emf) in closed forms, which, in turn, facilitates the characterization of a machine, and provides a basis for design optimization and system dynamic modeling

Year: 2004
OAI identifier: oai:eprints.whiterose.ac.uk:827

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