Original scientific paper

Analysis of power transformer: Transient Analysis of Power Transformer Using FEM

Bruce Klimpke ; Enginia Research Inc.
Chaowei Su ; Enginia Research Inc.

Abstract

The article presents the coupled finite element method (FEM) with circuit equations used for analysis of transformers. The magnetic field and the voltages on windings are coupled together and solved. Three different types of transformers in 2D and 3D were simulated in harmonic case and transient case. The results of currents and voltages on windings are provided. In addition, the magnetic field is displayed. The transient response of three-phase power transformer is simulated for the case of unbalanced loadings and the case of one opened loading. Numerical results demonstrate that the simulation tool with FEM method provides a quick, efficient and reliable way to analyze transformers.

Keywords

FEM; transient field; nonlinear; coupled field-circuit; transformer; inrush currents

Hrčak ID:

182743

URI

https://hrcak.srce.hr/182743

Publication date:

8.7.2015.

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