철도차량 에너지저장시스템 충전용 전력변환장치 기술 동향 분석

초록

The recent development of energy storage technology is bringing changes to the railway system. New railway vehicles are emerging that do not use the conventional unidirectional energy supply method using the power grid and instead use a high capacity energy storage system to supply the propulsion energy. In accordance with these recent changes, this paper analyzed future technology prospects along with technology trends of applying the energy storage system of the railway system. Specifically, trends in the application of energy storage systems for railway vehicles in local and domestic markets were investigated. Based on the results, recently introduced charging methods for energy storage systems for railway vehicles were classified into rapid charging methods, wireless charging methods, and renewable energy hybrid system charging methods; the characteristics of each method and the characteristics of related studies were analyzed. Through this, an overall research flow and future technology trends related to power conversion devices for railway vehicles equipped with energy storage devices were predicted.

키워드