Modeling of electromagnetic phenomena in soft magnetic materials under unidirectional time periodic flux excitations

Citation
Lr. Dupre et al., Modeling of electromagnetic phenomena in soft magnetic materials under unidirectional time periodic flux excitations, IEEE MAGNET, 35(5), 1999, pp. 4171-4184
Citations number
34
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
5
Year of publication
1999
Part
3
Pages
4171 - 4184
Database
ISI
SICI code
0018-9464(199909)35:5<4171:MOEPIS>2.0.ZU;2-A
Abstract
We report on recent advances in the modeling of magnetic losses in steel la minations used in electromagnetic devices. The integrated-lamination moving dynamic Preisach model, used to evaluate the dynamic magnetization loops u nder distorted unidirectional flux patterns, is described. The main goal is the comparison of two numerical procedures, using the finite element-finit e difference technique and the finite element-fixed point technique, respec tively, each properly taking into account the hysteresis characteristics by the Preisach theory. Moreover, attention is paid to the identification of the material parameters entering the moving dynamic Preisach model. Finally , the two techniques are validated by the comparison of numerical experimen ts and measurements on two different materials. Here, global as well as loc al quantities in the lamination structure are evaluated.