Estimation of 3-D eddy currents in conducting laminations by an anisotropic conductivity and a 1-D analytical model

Citation
K. Hollaus et O. Biro, Estimation of 3-D eddy currents in conducting laminations by an anisotropic conductivity and a 1-D analytical model, COMPEL, 18(3), 1999, pp. 494-503
Citations number
11
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING
ISSN journal
03321649 → ACNP
Volume
18
Issue
3
Year of publication
1999
Pages
494 - 503
Database
ISI
SICI code
0332-1649(1999)18:3<494:EO3ECI>2.0.ZU;2-3
Abstract
To circumvent the high computational costs of modelling each lamination to compute the eddy current distribution in three dimensions in conducting lam inations, a simple method has been developed. The laminar nature of the edd y currents due to the magnetic leakage field has been considered by applyin g an anisotropic conductivity with zero or very low value in the direction normal to the laminations. This yields an overall field distribution servin g as basis. In a second step, the much smaller eddy current loops caused by the main magnetic flux parallel to the laminations have been taken into co nsideration by a one-dimensional analytical model Nonlinearity is neglected .