Finite element method; magnetic circuit; model refinement; subdomain method
Abstract :
[en] Model refinements of magnetic circuits are performed via a subdomain finite element method based on a perturbation technique. A complete problem is split into subproblems, some of lower dimensions, to allow a progression from 1-D to 3-D models. Its solution is then expressed as the sum of the subproblem solutions supported by different meshes. A convenient and robust correction procedure is proposed allowing independent overlapping meshes for both source and reaction fields, the latter being free of cancellation error in magnetic materials. The procedure simplifies both meshing and solving processes, and quantifies the gain given by each model refinement on both local fields and global quantities.
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)
Geuzaine, Christophe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Luz, Mauricio Valencia Ferreira Da
Kuo-Peng, P.
Krähenbühl, L.
Language :
English
Title :
Finite Element Magnetic Models via a Coupling of Subproblems of Lower Dimensions
Z. Badics, Y. Matsumoto, K. Aoki, F. Nakayasu, M. Uesaka, and K. Miya, "An effective 3-D finite element scheme for computing electromagnetic field distorsions due to defects in eddy-current nondestructive evaluation," IEEE Trans. Magn., vol.33, no.2, pp. 1012-1020, 1997.
P. Dular, R. V. Sabariego, J. Gyselinck, and L. Krähenbühl, "Sub-domain finite element method for efficiently considering strong skin and proximity effects," COMPEL, vol.26, no.4, pp. 974-985, 2007.
P. Dular, R. V. Sabariego, M. V. Ferreira da Luz, P. Kuo-Peng, and L. Krähenbühl, "Perturbation finite element method for magnetic model refinement of air gaps and leakage fluxes," IEEE Trans. Magn., vol.45, no.3, pp. 1400-1403, 2009.
P. Dular, R. V. Sabariego, M. V. Ferreira da Luz, P. Kuo-Peng, and L. Krähenbühl, "Perturbation finite-element method for magnetic circuits," IET Sci., Measure. Technol., vol.2, no.6, pp. 440-446, 2008.
P. Dular, R. V. Sabariego, and L. Krähenbühl, "Magnetic model refinement via a perturbation finite element method-From 1-D to 3-D," COMPEL, vol.28, no.4, pp. 974-988, 2009.
P. Dular and R. V. Sabariego, "A perturbation method for computing field distortions due to conductive regions with h-conform magnetodynamic finite element formulations," IEEE Trans. Magn., vol.43, no.4, pp. 1293-1296, 2007.
C. Chillet and J. Y. Voyant, "Design-oriented analytical study of a linear electromagnetic actuator by means of a reluctance network," IEEE Trans. Magn., vol.37, no.4, pp. 3004-3011, 2001.
C. Geuzaine, B. Meys, F. Henrotte, P. Dular, and W. Legros, "A Galerkin projection method for mixed finite elements," IEEE Trans. Magn., vol.35, no.3, pp. 1438-1441, 1999.
