Machine Parameter Estimation in Three-Phase Transformers using Genetic Algorithm for Inrush Current Waveforms

Abstract

This paper presents the estimation technique of machine parameters for power transformer. This technique was developed using A. Ralston's Runge-Kutta method and genetic algorithm for only inrush current waveforms. Using machine parameters calculated by this estimation technique, EMTP-ATP simulation of the inrush current was carried out. Consequently, the EMTP-ATP simulated waveforms reproduced the measured waveforms.