Title :
Shell-form power transformer modelling at high frequencies
Author :
Ahmad, A. ; Auriol, Ph. ; Kieny, C.
Author_Institution :
Centre de Genie Electr. de Lyon, ECL, Ecully, France
fDate :
9/1/1994 12:00:00 AM
Abstract :
The electromagnetic duality principle is used for transformer modelling. The proposed method is presented. The calculation complexity of the rectangular winding parameters is reduced using a conformal mapping method and the boundary element method. The model parameters are directly calculated from the physical geometry by the finite element method or analytical formulations. The transformer modelling provides a good accuracy for the frequency dependent characteristics of the transformers. Comparisons between computation results and measurements are in good agreement
Keywords :
boundary-elements methods; duality (mathematics); electric impedance; finite element analysis; power transformers; transformer windings; boundary element method; calculation complexity; conformal mapping method; electromagnetic duality principle; finite element method; frequency dependent characteristics; high frequency modelling; leakage impedance; magnetizing impedance; model parameters; physical geometry; rectangular winding parameters; shell-form power transformer modelling; winding resistance; Computational geometry; Eddy currents; Electromagnetic modeling; Finite element methods; Frequency dependence; Inductance; Magnetic circuits; Power transformers; Skin; Solid modeling;
Journal_Title :
Magnetics, IEEE Transactions on
