Title: Frequency-domain homogenization for impedance characterization of Litz-wire transformers in 2-D finite element models
Authors: Niyomsatian, Korawich ×
Sabariego, Ruth
Van de Keybus, Jeroen
Gyselinck, Johan #
Issue Date: Apr-2016
Publisher: IEEE
Host Document: 2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER) pages:1-7
Conference: International Conference on Ecological Vehicles and Renewable Energies (EVER) edition:11th location:Monaco date:6-8 April, 2016
Abstract: This work deals with a frequency-domain homogenization technique for Iitz-wire bundles in transformers. The approach consists in adopting a frequency-dependent complex reluctivity in the Iitz-wire bundles and a frequency-dependent complex impedance in the electrical circuit. The Iitz-wire bundles become homogeneous conductors which are easy to integrate into a finite element model of a transformer. The magnetic flux and the impedance of the Iitz-wire transformer computed from the homogenized model agree well with the reference fine model in which each Iitz-wire turn is finely discretized. The errors of the computed resistance and inductance values are less than 3% and 0.03% respectively with several times faster calculation.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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