Computation of the Preisach distribution function based on a measured Everett map

Author

De Wulf, Marc ; Vandevelde, Lieven ; Maes, Jehudi ; Dupré, Luc ; Melkebeek, Jan

Author_Institution

Dept. of Electr. Power Eng., Ghent Univ., Belgium

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3141

Lastpage

3143

Abstract

Modeling the hysteresis behavior of soft magnetic materials based on Preisach theory, requires a Preisach distribution function characterising the material. Although it is possible to obtain all the data for a classical Preisach model from experimental first-order curves, obtaining the Preisach distribution function by differentiating this data twice leads to large errors and even to negative values in the distribution function, This work reports on how to avoid these errors in the Preisach function when it is computed starting from measured data. Measured BH-loops are arranged into an Everett function, which is then corrected in order to serve as a basis for the Preisach distribution function. The computation method is tried out on a nonoriented, a grain oriented and an iron-powder material

Keywords

magnetic hysteresis; magnetic particles; magnetisation reversal; soft magnetic materials; BH-loops; Everett map; Preisach distribution function; grain oriented material; hysteresis behavior; nonoriented material; powder material; soft magnetic materials; Distributed computing; Distribution functions; Magnetic analysis; Magnetic field measurement; Magnetic hysteresis; Magnetic materials; Magnetization reversal; Noise measurement; Power engineering; Soft magnetic materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908713

Filename

908713