3D eddy current computation in the transverse flux induction heating equipment

Author

Andree, Wolfgang ; Schulze, Dietmar ; Wang, Zanming

Author_Institution

ABB Ind. AG, Dortmund, Germany

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3072

Lastpage

3075

Abstract

This paper describes a 3D computation of transverse flux inductors used for heating strip and thin slabs. The adopted mathematical model consists of a differential equation system for the steady-state eddy current problem in a configuration comprising a magnetic vector potential and a scalar potential and a Fourier´s thermal conduction equation for moved media. The finite element method is applied in conjunction with the Galerkin method. The simplifications and boundary conditions required for an efficient solution are discussed. The discretization of the numerical model is set up with the aid of macroelements and includes upwards of 100000 nodes for simple builds. The suitability of the numerical method developed for optimum design of transverse flux inductors is demonstrated by some results

Keywords

eddy currents; finite element analysis; heat conduction; induction heating; 3D eddy current computation; Fourier thermal conduction equation; Galerkin method; boundary conditions; differential equation; discretization; finite element method; induction heating; macroelements; magnetic vector potential; mathematical model; numerical model; optimum design; scalar potential; slabs; strip; transverse flux inductors; Differential equations; Eddy currents; Heating; Inductors; Magnetic flux; Mathematical model; Slabs; Steady-state; Strips; Thermal conductivity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312586

Filename

312586