Soft Magnetic Materials 13

J. Phys. IV France 08 (1998) Pr2-647-Pr2-650
DOI: 10.1051/jp4:19982150

Dynamic Preisach modeling of ferromagnetic laminations : a comparison of different finite element formulations

O. Bottauscio¹, M. Chiampi², L.R. Dupré³, M. Repetto², M. Von Rauch³ and J. Melkebeek<sup>3

1</sup>  Istituto Elettrotecnico Nazionale Galileo Ferraris, Cso. Massimo d'Azeglio 42, 10125 Torino, Italy
²  Dipartimento di Ingegneria Elettrica Industriale, Politecnico di Torino, Cso. Duca degli Abruzzi 24, 10129 Torino, Italy
³  Department of Electrical Power Engineering, Universiteit Gent, Sint-Pietersnteuwstreet 41, 10129 Gent, Belgium

Abstract
In this paper, the computation of the macroscopic fields inside ferromagnetic laminations is discussed. The magnetodynamic model of non oriented steel laminations is coupled with a dynamic Preisach model. The main goal is the comparison of two numerical procedures for the magnetic field analysis which incorporate this refined hysteresis model. The two techniques are validated by the comparison of numerical experiments and measurements on an industrial material. It is shown that a very good agreement is obtained between the measured and computed material response with both techniques.

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