[en] A subproblem finite element method is developed for evaluating the eddy losses due to high current leads in transformers. The structural component of the transformer is modeled with classical volumetric elements or more efficiently with a thin shell model (surface impedance technique). Tools are then developed to correct the inaccuracies near edges and corners inherent to thin shell models for magnetodynamic problems. Improvements of local fields make possible accurate calculations of eddy losses and of temperature rise.
Disciplines :
Electrical & electronics engineering
Author, co-author :
V.Ferreira da Luz, Mauricio
Dular, Patrick ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Dang, Quoc Vuong ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Kuo-Peng, Patrick
Language :
English
Title :
Evaluation of Eddy Losses Due to High Current Leads in Transformers Using a Subproblem Method
Publication date :
September 2011
Event name :
ISEF 2011 - XV International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF2011 )
Event place :
Madeira, Portugal
Event date :
September 1-3
Audience :
International
Main work title :
ISEF 2011 - XV International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF2011 )
