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https://hdl.handle.net/2440/59904
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Type: | Journal article |
Title: | Reducing harmonic eddy-current losses in the stator teeth of interior permanent magnet synchronous machines during flux weakening |
Author: | Han, S. Soong, W. Jahns, T. Guven, M. Illindala, M. |
Citation: | IEEE Transactions on Energy Conversion, 2010; 25(2):441-449 |
Publisher: | IEEE-Inst Electrical Electronics Engineers Inc |
Issue Date: | 2010 |
ISSN: | 0885-8969 1558-0059 |
Statement of Responsibility: | Seok-Hee Han, Wen L. Soong, Thomas M. Jahns, Mustafa K. Guven and Mahesh S. Illindala |
Abstract: | Interior permanent magnet (IPM) synchronous machines can experience large harmonic eddy-current losses in the stator teeth under flux-weakening operation, significantly depressing the efficiency of these machines at high operating speeds. This paper presents a new analytical/finite-element hybrid design approach to reduce the harmonic eddy-current losses in IPM machine stator teeth during flux-weakening operation. The proposed technique achieves this objective by three steps: 1) developing an analytical index for the harmonic eddy-current losses in IPM machine stator teeth; 2) designing the spatial distribution of the rotor MMF to minimize the analytical index; and 3) synthesizing the rotor geometry to implement the desired rotor MMF function while maintaining the basic machine characteristics unchanged. It will be shown that two-layer rotors, if properly optimized, are significantly more effective than one-layer rotors for the purpose of reducing the harmonic eddy-current losses in IPM machine stator teeth during flux-weakening operation at high speeds. |
Keywords: | Core losses flux-weakening operation harmoniceddy-current losses high speed Interior permanentmagnet (IPM)machines, two-layer rotor. |
Rights: | © Copyright 2010 IEEE – All Rights Reserved |
DOI: | 10.1109/TEC.2009.2033195 |
Published version: | http://dx.doi.org/10.1109/tec.2009.2033195 |
Appears in Collections: | Aurora harvest Electrical and Electronic Engineering publications Environment Institute publications |
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