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Lookup NU author(s): Dr Rafal Wrobel
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This paper presents a lumped parameter approach for three-dimensional (3D) thermal modelling based upon the use of general 3D elements which are formulated to accurately cater for internal heat generation. Commonly used thermal networks tend not to account for an internal heat generation that is essential for accurate temperature predictions. In contrast, the general element proposed in this paper includes the internal heat generation as well as a material thermal anisotropy. To validate the technique, thermal models of an inductor using the equivalent circuit method based around a general cuboidal element and a full 3D finite element analysis was constructed and analyzed. The calculated results from the cuboidal element method show good agreement with the FEM predictions. © 2006 IEEE.
Author(s): Wrobel R, Mellor PH
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Magnetics
Print publication date: 01/08/2010
Online publication date: 19/07/2010
ISSN (print): 0018-9464
ISSN (electronic): 1941-0069
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