Title: Coupled thermo-magnetic simulation of a foil-winding transformer connected to a non-linear load
Authors: Driesen, Johan ×
DeliƩge, Geoffrey
Belmans, Ronnie
Hameyer, Kay #
Issue Date: Jul-2000
Publisher: Published by the Institute of Electrical and Electronics Engineers for the Magnetics Group
Series Title: IEEE Transactions on Magnetics vol:36 issue:4 pages:1381-1385
Abstract: Foil-winding power transformers contain compact sets of flat conductors having a large aspect ratio. Modeling the eddy currents in the individual foils is therefore difficult and requires completely meshed conductors, especially when the influence of the thermal held on the local conductivity is considered. Coupled 2D magnetic and thermal models of a 30 kVA transfomer having 50 secondary foils are presented. In the thermal model, thin layer elements or equivalent anisotropic materials are used to model the insulation material between the conductors. The coupled problem is solved for the steady-state and transient case. A novel method will be introduced to solve the transient coupled problem using time steps, much larger than the magnetic subproblem's time constants.
ISSN: 0018-9464
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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