Dynamic generalization of the scalar Preisach model of hysteresis

Author

Bertotti, Giorgio

Author_Institution

Istituto Elettrotecnico Nazionale Galileo Ferraris, Torino, Italy

Volume

28

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

2599

Lastpage

2601

Abstract

A dynamic generalization of the Preisach hysteresis model is proposed, in which the rate of change of the flux associated with each elementary Preisach loops is not infinite, as in the standard Preisach model, but proportional to the difference between the external field and the loop threshold fields. With this assumption, the shape of the elementary Preisach loops, as well as of the macroscopic hysteresis loops, becomes dependent on the magnetizing frequency f. In particular, it is found that the loop area follows a law of the form C₀+C₁√f. The model is well suited to applications in the field of power loss calculations in soft magnetic materials

Keywords

ferromagnetism; magnetic hysteresis; magnetisation; dynamic generalization; loop threshold fields; macroscopic hysteresis loops; magnetisation; magnetizing frequency; power loss; scalar Preisach hysteresis model; soft magnetic materials; Eddy currents; Frequency; Magnetic domain walls; Magnetic domains; Magnetic flux; Magnetic hysteresis; Magnetic materials; Mathematical model; Saturation magnetization; Soft magnetic materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.179569

Filename

179569