고속철도의 속도에 따른 아크에 의한 전자파 방사 계산

Radiated Electromagnetic Field Calculation due to Arc Discharge according to Speed of High Speed Train

  • 한인수 (한국철도기술연구원 차세대고속철도기술개발사업단) ;
  • 이태형 (한국철도기술연구원 차세대고속철도기술개발사업단) ;
  • 조홍식 (한국철도기술연구원 차세대고속철도기술개발사업단) ;
  • 박춘수 (한국철도기술연구원 차세대고속철도기술개발사업단) ;
  • 김기환 (한국철도기술연구원 고속철도연구센터)
  • 발행 : 2011.05.26

초록

High speed Train Systems are the energy supplied system via the pantograph through which the voltage and the current supplied by the catenary wire flow. The arc discharges generate owing to the contact loss between the catenary and the pantograph, and the electromagnetic fields radiate. There are many different phenomena between the static charges and the moving charges in view of the radiated electromagnetic fields. To calculate the electromagnetic filed about the moving charges, it is necessary to adapt Lorentz transformation. Actually, the particle which moves near the speed of light has the relativisitic phenomena. In addition, it is necessary to predict the electromagnetic field because the radiated electromagnetic field takes effect on the near electronic devices and the human beings. In this paper, we model the arc discharge into the dipole antenna model, adapt Lorentz transformation to the case that the electric railway cars move, and calculate the radiated electromagnetic field. By the calculation, we take the basis upon the electromagnetic prediction, and apply to the future research.

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