Eddy-current losses in magnetic conductors with abrupt magnetic transitions

Author

Mayergoyz, I.D. ; Serpico, C.

Author_Institution

Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1962

Lastpage

1969

Abstract

This paper presents an analysis of eddy-current losses in magnetic conductors with abrupt magnetic transitions. The study of the linear polarization of the magnetic flux is based on the Preisach model representation of eddy-current hysteresis. By using this representation, analytical formulas for the calculation of eddy-current losses in terms of simple experimental data are derived. The analysis of the circular polarization of the magnetic flux is carried out through the exact analytical solution of the corresponding nonlinear vector diffusion equation. It is shown that the f² law for eddy-current losses has a universal character.

Keywords

conducting bodies; eddy current losses; magnetic hysteresis; magnetic transitions; Preisach model; abrupt magnetic transition; circular polarization; eddy current loss; f² law; hysteresis; linear polarization; magnetic conductor; magnetic flux; nonlinear vector diffusion equation; Conducting materials; Conductors; Magnetic analysis; Magnetic flux; Magnetic flux density; Magnetic hysteresis; Magnetic losses; Magnetic materials; Polarization; Power engineering and energy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2000.875229

Filename

875229