Article (Scientific journals)
Subproblem Finite-Element Refinement of Homogenized Dielectric Layers in Wound Inductors for Accurate Local Stresses Computation
De Grève, Zacharie; Dular, Patrick; Meunier, Gérard et al.
2015In IEEE Transactions on Magnetics, 51 (3)
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Keywords :
electrostatics; homogenization; subproblem finite-element method (SPFEM); transformers
Abstract :
[en] Recently, a homogenized model in 2-D electrostatics has been proposed in order to avoid the meshing of the thin dielectric layers surrounding the conductors of transformers. The model performs a smoothing of the physical fields, which leads to an incorrect estimation of the peak values of the electric field between the conductors. This issue is critical for a correct design of the transformer insulation. Therefore, in this paper, the subproblem finite-element method is employed, so as to refine the homogenized model on selected areas, and recover the small scale variations of the fields.
Disciplines :
Electrical & electronics engineering
Author, co-author :
De Grève, Zacharie;  Université de Mons - UMONS > Department of Power Electrical Engineering
Dular, Patrick ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Meunier, Gérard;  Université Grenoble Alpes > G2Elab
Geuzaine, Christophe  ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Deblecker, Olivier;  Université de Mons - UMONS > Department of Power Electrical Engineering
Lobry, Jacques;  Université de Mons - UMONS > Department of Power Electrical Engineering
Language :
English
Title :
Subproblem Finite-Element Refinement of Homogenized Dielectric Layers in Wound Inductors for Accurate Local Stresses Computation
Publication date :
March 2015
Journal title :
IEEE Transactions on Magnetics
ISSN :
0018-9464
eISSN :
1941-0069
Publisher :
IEEE, Piscataway, United States - New Jersey
Volume :
51
Issue :
3
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 January 2016

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