전기철도 급전용 전철변전소(Converter Station) 시스템 모델 시뮬레이션 연구

초록

In AC railway system, three-phase power is converted to single-phase power by Scott transformer. However, if the speed of rail vehicle or the amount of loads is increased, this measure causes three crucial problems which are voltage unbalance, existence of air-sections and decrease of distance between substations. In order to overcome the problems, this research is demonstrated the superiority of VCS active substation by implementing a simulation including comparison with existing substation with Scott transformer.