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3-D high frequency computation of transformer R, L parameters

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6 Author(s)
O. Moreau ; TESE Dept., EDF R&D-1, Clamart, France ; R. Michel ; T. Chevalier ; G. Meunier
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High frequency electrical machine modeling based on lumped parameter equivalent circuit requires that eddy currents effects be taken into account for R and L coefficient derivation. Substituting hysteretic materials (complex permeability) to conductive materials makes it possible to accurately approximate proximity losses and shielding effect while considering realistic meshes for finite element methods computation. Three-dimensional magnetodynamic simulations of transformer test-cases using anisotropic complex permeability for magnetic core and windings have shown a good agreement with the standard model results.

Published in:

IEEE Transactions on Magnetics  (Volume:41 ,  Issue: 5 )