https://doi.org/10.1051/epjap/2010003
Eddy-current formulation for constructing transmission-line models for machine windings *,**
1
Katholieke Universiteit Leuven, Faculty of Science, Belgium
2
Technische Universität Darmstadt, Institut für Theorie Elektromagnetischer Felder, Germany
3
Technische Universität Darmstadt, Institut für Elektrische Energiewandlung, Germany
Corresponding author: herbert.degersem@kuleuven-kortrijk.be
Received:
12
December
2008
Accepted:
19
November
2009
Published online:
3
February
2010
In this paper, an eddy-current formulation is used to determine the transmission-line parameters of a machine winding. It is shown that this formulation covers a broader frequency range than the commonly used low-frequency magnetostatic and high-frequency magnetodynamic approximations. The eddy-current formulation, however, suffers from large computation times and may lead to severe inaccuracies if the finite-element mesh does not resolve the skin depth, a modelling concern that does not exist for the traditional formulations. The three finite-element models are compared according to the accuracy of the resulting transmission-line model applied to the winding of a permanent-magnet synchronous machine.
© EDP Sciences, 2010
