Application of SIMULINK to Analyze the Unbalanced Operation Characteristics of a Three- Phase Transformer with Non-Identical Winding Impedances

The aim of this paper is to introduce the application of SIMULINK to analyze the unbalanced operation characteristics of a three-phase transformer with non-identical winding impedances. SIMULINK is popular professional simulation software in power industry and departments of electrical and electronic engineering of colleges. If the winding impedances of a three-phase transformer are not identical, unbalanced problems will be produced in power systems. In this paper, the simulation technique for a three-phase transformer with non-identical winding impedances is presented. The unbalanced operation characteristics of a three-phase transformer with non-identical winding impedances are also presented and discussed here.