A FEM formulation to treat 3D eddy currents in laminations

Citation
K. Hollaus et O. Biro, A FEM formulation to treat 3D eddy currents in laminations, IEEE MAGNET, 36(4), 2000, pp. 1289-1292
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
36
Issue
4
Year of publication
2000
Part
1
Pages
1289 - 1292
Database
ISI
SICI code
0018-9464(200007)36:4<1289:AFFTT3>2.0.ZU;2-U
Abstract
A method is presented to compute the eddy current losses in laminated nonsa turated iron cores based on the finite element method. In the first step, a three-dimensional model of the core treated as a bulk of anisotropic mater ial with low conductivity in the direction normal to the lamination is anal yzed. Each laminate is taken into account in the second step by writing the field components in it as fundamental solutions of the diffusion equation so that the averages of the tangential electric and magnetic field componen ts over the thickness of the sheet equal the averages obtained in the first step.