Generalization of 3D eddy current analysis for moving conductors due to coordinate systems and gauge conditions

Author

Amazaki, Katsumi Y.

Author_Institution

Dept. of Electr. & Electron. Syst. Eng., Teikyo Univ., Tochigi, Japan

Volume

33

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

1259

Lastpage

1262

Abstract

The paper presents a variation of the 3D eddy current analysis for moving conductors with two parameters. One is the velocity of the coordinate systems and the other is the gauge conditions which specify the electromagnetic potentials. The general formulation due to these parameters is obtained and numerical experiments are carried out. The edge finite elements and the backward difference method are applied to the formulations. It is clarified that the potentials are determined by both of these parameters and that a proper relation between the parameters is required to analyze the conductors sliding in electrical contact. When we analyze electrical machines including moving conducting parts, for example, induction motors and rail launchers

Keywords

conductors (electric); difference equations; eddy currents; electric potential; finite element analysis; induction motors; railguns; 3D eddy current analysis; backward difference method; coordinate systems; edge finite elements; electrical contact; electrical machines; electromagnetic potentials; gauge conditions; induction motors; moving conducting parts; moving conductors; numerical experiments; rail launchers; velocity; Conductors; Contacts; Eddy currents; Equations; Finite element methods; Induction motors; Magnetic analysis; Motion analysis; Rails; Systems engineering and theory;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.582483

Filename

582483