Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Relation between Induced Voltage of Rail and Feeding Line of Wireless Power Transfer System for Railway Application

철도용 무선전력전송시스템의 급전선로와 레일유기전압의 관계

  • Kim, JaeHee (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • Park, Chan-Bae (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • Jung, Shin-Myung (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • Lee, Seung-Hwan (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • Lee, Byung-Song (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • Lee, Jun-Ho (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute) ;
  • Lee, Su-Gil (Railway Electric Traction & Wireless Power Transfer System Research Team, Korea Railroad Research Institute)
  • Received : 2014.04.07
  • Accepted : 2014.06.30
  • Published : 2014.08.31
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Abstract

The magnetic field generated by the feeding line of a wireless power transfer system induces voltage on the rail of a railway system. The induced voltage of the rail can have a bad influence on the track circuit and on safety. This paper simulated three feeding lines to study the relation between the feeding lines and the induced voltage of the rail; it also proposed magnetic field distribution of the feeding line to reduce the induced voltage.

철도의 무선전력전송 시스템을 구현하는데 있어 급전선로에서 생성된 자기장은 레일에 유기전압을 형성한다. 레일의 유기전압은 궤도회로의 동작 및 안전사고에 영향을 줄 수 있기 때문에 최소화하는 것이 필요하다. 본 논문에서는 3가지 무선전력전송 선로에 대해서 레일에 형성되는 유기전압의 관계를 시뮬레이션을 통하여 살펴보고 레일 유기전압을 줄이기 위한 급전선로의 자기장 분포를 제시한다.

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