경부고속철도 시험선구간의 고조파 예측 및 측정분석

초록

This paper proposes a new model for harmonic analysis in 2*25kV traction power supply system including inverted feeder, contact line, rails and auto-transformer. The system model is based on four-port representation which is an extension of two-port network theory. In order to verify the proposed approach, we have analysed and tested real traction power feeding system focused on the amplification of harmonic current. The calculation results from the proposed approach and the measurement data from the test are widely described in the paper.