Voltage Driven Finite Element Analysis of a Plunger Core Reactor with Parallel Winding Paths

Conference: CEM 2006 - 6th International Conference on Computational Electromagnetics
04/04/2006 - 04/06/2006 at Aachen, Germany

Proceedings: CEM 2006

Pages: 2Language: englishTyp: PDF

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Schmidt, Erich (Institute of Electrical Drives and Machines, Vienna University of Technology, 1040 Vienna, Austria)
Hamberger, Peter (VA TECH EBG, Transformatoren GmbH & Co, 4020 Linz, Austria)

The paper presents 3D finite element analyses of a plunger core reactor with four parallel connected winding paths. Due to the parallel windings and the magnetic coupling, voltage driven analyses have to be used to determine the current distribution. Thereby, the finite element model utilizes a direct circuit coupling to take into account for the applied voltage and the parallel windings paths. Consequently, the four coil currents are obtained with the full influence of the asymmetric winding arrangement according to the position of the plunger core. Moreover, the Lorentz forces acting on the windings and the Maxwell forces acting on the plunger core are calculated in dependence of the plunger core air-gap.