HARMONIC ANALYSIS MODEL BASED ON 8-PORT REPRESENTATION FOR KOREAN HIGH-SPEED RAILWAY SYSTEM

초록

This paper presents a harmonic analysis model for the Korean high-speed railway system and the RC-Bank installation by its optimal location and design to reduce harmonics on this system. First, we model the Korean high-speed railway system. The new proposed model is for harmonic analysis in 2×25kV traction power supply system including feeders, contact lines, rails and autotransformers. The system model is based on 8-port representation, which is an extension of 2-port network theory. The proposed model is developed by combining fundamental element models of the Korean high-speed railway system. The proposed model is verified by comparing simulation with measurement regarding the amplification rate of harmonic currents. We design the optimal location and parameters of the RC-Bank by the verified model. Simulation results using the model are compared to field test data of the Korean high-speed railway system, and it verifies the accuracy of the proposed model.