Title :
Time-Domain Homogenization of Windings in 3-D Finite Element Models
Author :
Sabariego, Ruth V. ; Dular, Patrick ; Gyselinck, Johan
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Liege Univ., Liege
fDate :
6/1/2008 12:00:00 AM
Abstract :
This paper deals with the time-domain homogenization of multiturn windings in 3-D finite element (FE) models. An elementary two- dimensional (2-D) FE model allows for the global eddy-current characterization of the winding by means of dimensionless frequency and time-domain coefficients regarding skin and proximity effects. These coefficients are used in the FE model of the complete device. The 3-D homogenization method is validated by considering an axisymmetric 120-turn inductor for which a brute-force 2-D FE model (each turn is finely discretized) provides an accurate reference solution.
Keywords :
eddy currents; finite element analysis; inductors; windings; 3-D finite element models; axisymmetric 120-turn inductor; dimensionless frequency; eddy-current characterization; multiturn windings; proximity effects; skin effects; time-domain coefficients; time-domain homogenization; Eddy currents; finite element methods; proximity effect; skin effect; time domain;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.915908
