Homogenization algorithms for calculation of field quantities in laminated magnetic materials

Author

Krah, J.H. ; Bergqvist, A. ; Engdahl, G.

Author_Institution

Dept. of Electr. Eng., Kungl Tekniska Hogskolan, Stockholm, Sweden

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

2385

Lastpage

2387

Abstract

A recently suggested homogenization procedure for the calculation of field quantities in laminated electric steel has proved to considerably speed up the calculation time. One limitation of this method is that it only works in situations where the skin effect is small. This paper presents some approaches to extend the method such that substantial skin effects can be treated.

Keywords

eddy current losses; ferromagnetic materials; finite difference methods; iron alloys; laminations; magnetic fields; magnetic flux; silicon alloys; skin effect; Fe-Si; Taylor series; discrete series magnetomotive forces; dispersion equation; dual Cauer circuit; eddy currents; effective B-H curves; effective field strength; effective flux density; electric steel; field quantities; finite-difference approximation; flux density; homogenization algorithms; laminated magnetic materials; nonlinear conditions; parabolic function; skin effect; spatial distribution; time derivative; Eddy currents; Equations; Finite difference methods; Laminates; Magnetic circuits; Magnetic flux; Magnetic materials; Skin effect; Spatial resolution; Steel;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.803583

Filename

1042196