[en] Accurate magnetic flux distributions are calculated in magnetic circuits via a subproblem finite-element (FE) method based on a perturbation technique. An approximate FE problem considering ideal flux tubes is first solved. It gives the source for FE perturbation problems considering the flux tubes with their exterior regions, accounting thus for leakage fluxes, as well as for changes of material properties and shapes. The proposed technique aims to accurately quantify the gain given by each model refinement on both local fields and global quantities and to justify the usefulness of this refinement. It is also well adapted to parameterised analyses on geometrical and material data.
Disciplines :
Electrical & electronics engineering
Author, co-author :
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)
Ferreira da Luz, Mauricio; Universidade Federal de Santa Catarina > EEL/CTC > GRUCAD
Kuo-Peng, Patrick; Universidade Federal de Santa Catarina > EEL/CTC > GRUCAD
Krähenbühl, Laurent; Université de Lyon > Ampère
Language :
English
Title :
Perturbation finite-element method for magnetic circuits
Publication date :
November 2008
Journal title :
IET Science, Measurement and Technology
ISSN :
1751-8822
eISSN :
1751-8830
Publisher :
Institution of Engineering & Technology, Hertford, United Kingdom
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Bibliography
Badics, Z., Matsumoto, Y., Aoki, K., Nakayasu, F., Uesaka, M., Miya, K., An effective 3-D finite element scheme for computing electromagnetic field distortions due to defects in eddy-current nondestructive evaluation (1997) IEEE Transactions on Magnetics, 33 (2 PART 1), pp. 1012-1020. , PII 001894649700664X
Dular, P., Gyselinck, J., Henneron, T., Piriou, F., Dual finite element formulations for lumped reluctances coupling (2005) IEEE Trans. Magn., 41 (5), pp. l396-l399
Dular, P., Sabariego, R.V., A perturbation method for computing field distortions due to conductive regions with h-conform magnetodynamic finite element formulations (2007) IEEE Transactions on Magnetics, 43 (4), pp. 1293-1296. , DOI 10.1109/TMAG.2007.892401
Dular, P., Sabariego, R.V., Gyselinck, J., Krahenbuhl, L., Sub-domain finite element method for efficiently considering strong skin and proximity effects (2007) COMPEL - the International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 26 (4), pp. 974-985. , DOI 10.1108/03321640710756311, Selected Papers from the 19th Symposium on Electromagnetic Phenomena in Nonlinear Circuits 2006
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