Finite Element Analysis of Three-Phase Three-Limb Power Transformers Under DC Bias

A finite element method for the analysis of three-phase, three-limb power transformers under dc bias is presented. The phase voltages and the dc components of the phase currents are assumed to be given. Using parallel algorithms, the steady-state periodic solution is obtained without stepping throug...

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Veröffentlicht in:IEEE transactions on magnetics 2014-02, Vol.50 (2), p.565-568
Hauptverfasser: Biro, Oszkar, Koczka, Gergely, Leber, Gerald, Preis, Kurt, Wagner, Bernhard
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Leber, Gerald
Preis, Kurt
Wagner, Bernhard
description A finite element method for the analysis of three-phase, three-limb power transformers under dc bias is presented. The phase voltages and the dc components of the phase currents are assumed to be given. Using parallel algorithms, the steady-state periodic solution is obtained without stepping through the transients using a fixed-point method to solve the nonlinear equations. A novel technique to obtain the starting solution for the fixed-point iterations to ensure fast convergence is introduced. The solution to a large, real world problem is presented.
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subjects Bars
Circuit faults
Cross-disciplinary physics: materials science
rheology
Eddy currents
Exact sciences and technology
Finite element analysis
Magnetic domains
Magnetic noise
Magnetism
Materials science
nonlinear equations
Other topics in materials science
parallel algorithms
Physics
Power transformers
stationary state
Windings
title Finite Element Analysis of Three-Phase Three-Limb Power Transformers Under DC Bias
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