A Development of the Electric Power Supply System for PRT Vehicle

PRT 차량의 전력 공급시스템 개발

  • 김백현 (한국철도기술연구원 수요응답형교통연구단) ;
  • 정락교 (한국철도기술연구원 수요응답형교통연구단) ;
  • 정상기 (한국철도기술연구원) ;
  • 강석원 (한국철도기술연구원 수요응답형교통연구단)
  • Received : 2012.11.01
  • Accepted : 2013.01.05
  • Published : 2013.02.01


In this paper, the design of PRT vehicle power supply system is discussed. Since there is no power feeding line facilities in PRT system under development, the PRT vehicle must have its own energy storage device on board. For the energy storage device, ultra-capacitor bank is applied due to its fast charging capability and long life time. Charging the Ultra-capacitor bank is performed by wireless inductive power transfer system. The capacitor bank is charged up in less than 10 seconds when the vehicle is traveling by passenger stations. In this paper the design of the ultra-capacitor bank and the wireless inductive power transfer system for the PRT vehicle are discussed. Tests are conducted for the both system and the result shows the efficiency of the wireless inductive power transfer system is higher than 80%.


  1. N.G. Hingorani, "Power Electronics in Electric Utilities : Role of Power Electronics in Future Power System", Proceedings of the IEEE, Vol. 76, No. 4, pp. 481-482, 1988, April.
  2. Vukan Vuchic, "Urban Public Transportation", Vukan Vuchic, Univ. of Pennsylvania, 1981.
  3. Yoichi Hori, "Future Vehicle Society based on Electric Motor, Capacitor and Wireless Power Supply", Yoichi Hori, 2010 International Power Electronics Conference.
  4. Yangbae Chun, Seong Park, Jiseong Kim, Hongseok Kim, Kiwon Hwang, Joungho Kim, Seungyoung Ahn, "System and Electromagnetic Compatibility of Resonance Coupling Wireless power Transfer in On-Line Electric Vehicle", 2012 International Symposium on Antennas and Propagation.
  5. 정구호외 13명, "온라인 전기 자동차를 위한 급전 및 집전 시스템", 전력전자학회 2010년도 하계학술대회 논문집.

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