IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Paper
Loss Analysis of Permanent Magnet Synchronous Machines by Considering Circulating Currents of Armature Windings
Katsumi YamazakiHaiyan YuiHideki OhguchiMasao Shuto
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2018 Volume 138 Issue 6 Pages 553-560

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Abstract

In this paper, we investigate the losses caused by circulating currents generated in armature windings of permanent magnet synchronous machines by using electromagnetic field analysis. In the analysis, each parallel connected wire in the windings is modeled by finite elements in order to consider the difference in the electromotive forces and the generation of the circulating currents. The calculated losses are compared with experimental results. It is clarified that the armature copper loss in permanent magnet machines with parallel connected wires considerably increases by the circulating currents.

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© 2018 by the Institute of Electrical Engineers of Japan
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