Magnetic Model Refinement via a Perturbation Finite Element Method - From 1-D to 3-D

Patrick Dular (1) , Ruth V. Sabariego (1) , Laurent Krähenbühl (2)

1 Institut Montefiore - Department of Electrical Engineering and Computer Science
2 AMPERE - Ampère

Model refinements of magnetic circuits are performed via a subproblem finite element method based on a perturbation technique. A simplified problem considering ideal flux tubes is first solved, as either a 1-D magnetic circuit or a simplified finite element problem. Its solution is then corrected via finite element perturbation problems considering the actual flux tube geometry and the exterior regions, that allow first 2-D and then 3-D leakage fluxes. The procedure simplifies both meshing and solving processes, and quantifies the gain given by each model refinement on both local fields and global quantities.

Mots clés: perturbation method.; model refinement; perturbation method; Finite element method; magnetic circuit

Domaines: Energie électrique

Patrick Dular, Ruth V. Sabariego, Laurent Krähenbühl. Magnetic Model Refinement via a Perturbation Finite Element Method - From 1-D to 3-D. 13th IGTE, Sep 2008, Graz, Austria. pp.439-445. ⟨hal-00359393⟩