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|Title:||Reducing harmonic eddy-current losses in the stator teeth of interior permanent magnet synchronous machines during flux weakening|
|Citation:||IEEE Transactions on Energy Conversion, 2010; 25(2):441-449|
|Publisher:||IEEE-Inst Electrical Electronics Engineers Inc|
|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.|
Interior permanentmagnet (IPM)machines, two-layer rotor.
|Rights:||© Copyright 2010 IEEE – All Rights Reserved|
|Appears in Collections:||Aurora harvest|
Electrical and Electronic Engineering publications
Environment Institute publications
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