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Analytical modeling of open-Circuit air-Gap field distributions in multisegment and multilayer interior permanent-magnet machines

Zhu, L., Jiang, S.Z., Zhu, Z.Q. and Chan, C.C. (2009) Analytical modeling of open-Circuit air-Gap field distributions in multisegment and multilayer interior permanent-magnet machines. IEEE Transactions on Magnetics, 45 (8). pp. 3121-3130. ISSN 0018-9464

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Abstract

We present a simple lumped magnetic circuit model for interior permanent-magnet (IPM) machines with multisegment and multilayer permanent magnets. We derived analytically the open-circuit air-gap field distribution, average air-gap flux density, and leakage fluxes. To verify the developed models and analytical method, we adopted finite-element analysis (FEA). We show that for prototype machines, the errors between the FEA and analytically predicted results are $≪$1% for multisegment IPM machines and $≪$ 2% for multilayer IPM machines. By utilizing the developed lumped magnetic circuit models, the IPM machines can be optimized for maximum fundamental and minimum total harmonic distortion of the air-gap flux density distribution.

Item Type: Article
Copyright, Publisher and Additional Information: © Copyright 2009 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: air-gap flux density; interior permanent magnet; leakage flux; multilayer: multisegment
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
Depositing User: Miss Anthea Tucker
Date Deposited: 11 Aug 2009 10:53
Last Modified: 08 Feb 2013 16:58
Published Version: http://dx.doi.org/10.1109/TMAG.2009.2019841
Status: Published
Publisher: Institute of Electrical and Electronics Engineers
Refereed: Yes
Identification Number: 10.1109/TMAG.2009.2019841
URI: http://eprints.whiterose.ac.uk/id/eprint/9076

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