Finite element and finite difference analysis of losses in laminated material

Author

Luk, L. ; Dawson, G.E. ; Eastham, A.R.

Author_Institution

Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

24

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

2679

Lastpage

2681

Abstract

Eddy-current losses in laminated ferromagnetic material are computed, using the finite-element and finite-difference methods. The excitation is periodic with only one component, and the theoretical development uses a quasistationary analysis in which only the planar component is considered in the laminated stack that is exposed to the time-varying field. Good agreement is found between analysis and test results for tooth ripple loss in the pole face of an alternator

Keywords

difference equations; eddy current losses; finite element analysis; laminates; machine theory; magnetic cores; magnetic materials; alternator; eddy current losses; electric machines; ferromagnetic material; finite difference analysis; finite element analysis; laminated material; periodic excitation; planar component; pole face; quasistationary analysis; time-varying field; tooth ripple loss; transformer core; Boundary conditions; Eddy currents; Equations; Finite difference methods; Finite element methods; Geometry; Lamination; Magnetic flux; Magnetic materials; Magnetostatics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92211

Filename

92211