DC ELECTRIC RAILWAY LOADFLOW ALGORITHM CONSIDERING MOVEMENT OF ELECTRIC VEHICLES

摘要

This paper is about loadflow algorithm consideringrnmovement of electric railway vehicle. The electric railwayrnsystem is peculiar power system of which the location andrnpower of vehicle are variable. Especially, as the variancernof power induces huge fluctuation of catenary voltage asrnsevere as the electric devices may be stressed,rnstabilization scheme is needed to be devised. To derivernthe accurate results, output data, location and power, fromrntrain performance simulator (TPS) are used. Calculatingrnthe rail potential, accuracy enhancement for railwayrnvehicle voltage is attempted. Korean Seoul Metro Line 2rnis selected for the test system and simulated to verify thernsubstation voltage is often out of permissible voltagernrange.