Nonlinear periodic eddy currents in single and multiconductor systems

Author

Preis, K. ; Bardi, I. ; Biro, O. ; Richter, K.R. ; Papp, K. ; Reisinger, H.

Author_Institution

Graz Univ. of Technol., Austria

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

780

Lastpage

783

Abstract

The application of the finite element method to the calculation of nonlinear periodic eddy current problems is discussed. Special attention is paid to the case when specific conditions on the current or voltage of several conductors have to be fulfilled. An efficient iterative procedure has been developed to satisfy these conditions in 2D problems solved by a single component magnetic vector potential with the nonlinearity taken into account. The total current condition can be fulfilled in 3D with a noniterative scheme, but voltage conditions still require a multistep approach. Additionally, a possibility of accelerating the time stepping algorithm in reaching steady state is presented for a 3D eddy current problem involving a single conductor.

Keywords

coils; conductors (electric); eddy currents; finite element analysis; iterative methods; 2D problems; 3D eddy current problem; finite element method; iterative procedure; multiconductor syst; multistep approach; nonlinear periodic eddy currents; single component magnetic vector potential; single conductor systems; steady state; time stepping algorithm; total current condition; voltage conditions; Acceleration; Conductors; Eddy currents; Finite element methods; Steady-state; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497356

Filename

497356