Thermal-electromagnetic coupling in the finite-element simulation of power transformers

Author

Preis, K. ; Biro, O. ; Buchgraber, G. ; Ticar, I.

Author_Institution

Inst. for Fundamentals & Theor. in Electr. Eng., Graz Univ. of Technol.

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

999

Lastpage

1002

Abstract

A finite element method is presented to compute the electromagnetic field and hence the temperature rise in complex three-dimensional structures such as power transformers. The temperature dependence of both the heat transfer coefficients and the electric conductivity is taken into account establishing a strong coupling between the thermal and electromagnetic equations

Keywords

electrical conductivity; electromagnetic coupling; electromagnetic field theory; finite element analysis; heat transfer; power transformers; 3D structures; electric conductivity; electromagnetic equations; electromagnetic field; finite element method; finite-element simulation; heat transfer coefficients; power transformers; temperature dependence; thermal equations; thermal-electromagnetic coupling; Computational modeling; Electromagnetic coupling; Electromagnetic fields; Electromagnetic heating; Finite element methods; Heat transfer; Power transformers; Resistance heating; Temperature dependence; Thermal conductivity; Electromagnetic coupling; finite element methods (FEM); power transformer thermal factors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871439

Filename

1608377