[en] In this paper the perturbation technique is developed for modeling of the magnetic shunt and an aluminum screen in large power transformers. The problem is first studied using either a simplified analytical or a finite element model. A more elaborated model is then defined to take into account its structural details. The calculation of iron losses and of the minimum clearance between bus bars leading current and magnetizable steel parts for a frequency range is performed. The modeling takes into account the eddy currents in magnetic shunt laminations due to the magnetic field in the shunt.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Ferreira da Luz, Mauricio V.; Federal University of Santa Catarina - UFSC, Santa Catarina, Florianopolis, Brazil
Dular, Patrick ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
V Sabariego, Ruth ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Kuo-Peng, Patrick; Federal University of Santa Catarina - UFSC, Santa Catarina, Florianopolis, Brazil
Language :
English
Title :
Modeling of a Magnetic Shunt and an Aluminum Screen Using the Perturbation Finite Element Method
Publication date :
2010
Event name :
14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC2010)
Event organizer :
IEEE
Event place :
Chicago, Illinois, United States
Event date :
May 9-12, 2010
Audience :
International
Main work title :
Proceedings of the 14th Biennial IEEE Conference on Electromagnetic Field Computation (CEFC2010)
K. Karsai, D. Kerényi, and L. Kiss, Large Power Transformers, Studies in Electrical and Electronic Engineering 25, Elsevier, 1987.
P. Dular, R. V. Sabariego, M. V. Ferreira da Luz, P. Kuo-Peng, L. Krahenbuhl, "Perturbation Finite Element Method for Magnetic Model Refinement of Air Gaps and Leakage Fluxes", IEEE Transactions on Magnetics, vol. 45, no. 3, p. 1400-1403, 2009.
