연장급전 전압강하 계산을 위한 전기철도 급전 시뮬레이터의 검증에 관한 연구

초록

The power flow analysis of electrified railway is required complicated calculation, because of variable load. Trainruns trough rail supplied by electric power therefore, the load value in electrified railway system fluctuates along time. Thepower flow algorithm in electrified railway system is different from general power system, and the power flow simulation ispeformed by the particular simulation software. Powerail is simulation software for analysis of traction power supply system developed by KRRI, in 2008. This consists of loadforecasting module, including TPS and time scheduling, and power flow module. This software was verified by measuredcurrent under normal feeding condition, however, has not been verified by voltage on the condition of extended feeding. Thispaper presents the verification of PowerRail based on voltage drop under extended feeding condition. This is performed bycomparing simulation result with field test. Field test and simulation is done in commercial railway line.

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