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Lookup NU author(s): Dr Rafal Wrobel
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This paper describes the thermal analysis of an external-rotor brushless permanent-magnet motor used in a traction application. The machine has a nonstandard open-slot stator lamination and is wound with a single-layer concentrated ''modular'' winding. This structure potentially has several heat transfer advantages compared to the more traditional double-layer concentrated winding. An analytical lumped-parameter thermal model has been developed for the machine to gain an understanding of the main cooling mechanisms and to investigate the potential heat transfer advantages. The thermal advantage of the modular winding over the more conventional 1.5-slot-per-pole design is presented. Results from the developed thermal model have been validated experimentally on a prototype wheel hub motor. © 2010 IEEE.
Author(s): Wrobel R, Mellor PH, McNeill N, Staton DA
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Energy Conversion
Year: 2010
Volume: 25
Issue: 2
Pages: 403-411
Print publication date: 01/06/2010
Online publication date: 20/05/2010
ISSN (print): 0885-8969
ISSN (electronic): 1558-0059
Publisher: IEEE
URL: https://doi.org/10.1109/TEC.2010.2047041
DOI: 10.1109/TEC.2010.2047041
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