Design of DC-DC Converter to Charge and Discharge Ultra-Capacitor Modules for Wireless Trains

무가선 전동차용 울트라커패시터 모듈 충·방전을 위한 DC-DC 컨버터 설계

Jo, Jeong-Min;Han, Young-Jae;Kim, Jae-Won;Lee, Jang-Moo;Kim, Gil-Dong

  • Received : 2015.10.19
  • Accepted : 2015.11.23
  • Published : 2015.12.01


Electric power trains receive electric power from overhead cables via a pantograph system. Power collector system in trains increase the cross section of tunnel and require a massive coreless filter reactor in propulsion inverter because of the power disturbance by contact loss phenomenon of a train. In this paper we proposed a wireless train which can run to next station with charging energy of ultra-capacitor module block. We designed DC-DC converter to charge and discharge ultra-capacitor modules by using Next Train running test results and confirm the feasibility of the proposed system through simulation.


DC-DC converter;Ultra-capacitor;Wireless train;Energy saver


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Supported by : 한국철도기술연구원