Title :
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.
fDate :
4/1/2006 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.871439
