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전기철도시스템에 에너지저장시스템 적용 해석에 관한 연구
이한민(Hanmin Lee),김길동(Gildong Kim),안천헌(Cheonheon An),장길수(Gilsoo Jang),권세혁(Saehyuk Kwon) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.11
The energy storage system(ESS) is needed to be developed to use regeneration energy when the vehicle is braking. The ESS is able to store and discharge energy extremely quickly, consequently enabling a complete exchange of energy between vehicles, even if they are not braking and accelerating at precisely the same time, as is most frequently the case in everyday service. The energy saving rate is related to the headway. If the headway is long/short, the energy saving goes up/down. When the headway is short, the ESS can not save much regenerative energy. The headway of SeoulMetro as the worst case is very short in Korea urban transit system. So, the energy saving rate will be very low. If the ESSs are applied to another railway system, we can expect that the effectiveness is better than the results of SeoulMetro. This paper presents effects of energy saving obtained by applying the ESS to Seoul Metro.