Computation of eddy currents induced in a conducting sheet under moving magnets

Author

Takahashi, Takao ; Kurita, Kentaro

Author_Institution

Hitachi Ltd., Ibaraki, Japan

Volume

24

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

197

Lastpage

200

Abstract

A method for computing transient eddy currents induced by the movement of magnets without iron materials, such as superconducting magnets, is proposed. The formulation is based on a finite-difference method utilizing only the electric vector potential of the T-Ω method. Meshing is done only for the 2-D thin conducting sheet region, and the field of the magnet is considered through the integral equation of Biot-Savart´s law. The method is illustrated with reference to the eddy current and force analysis of a magnetically levitated vehicle

Keywords

eddy currents; electromagnetic induction; finite element analysis; magnetic levitation; magnets; transients; Biot-Savart´s law; T-Ω method; conducting sheet; electric vector potential; finite-difference method; force analysis; induced eddy currents; integral equation; magnetically levitated vehicle; moving magnets; superconducting magnets; transient eddy currents; Conducting materials; Eddy currents; Electric potential; Finite difference methods; Iron; Magnetic levitation; Magnetic materials; Sheet materials; Superconducting magnets; Superconducting materials;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.43887

Filename

43887