Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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The Influence on Traction Return Current by Pantograph Detachment Frequency of High-speed Train

고속철도차량의 이선빈도가 귀선전류에 미치는 영향

  • 이성근 (한양대학교 전기공학과) ;
  • 조영만 (한양대학교 대학원 전기공학과) ;
  • 고광철 (한양대학교 전기.생체공학부)
  • Received : 2014.04.02
  • Accepted : 2014.07.11
  • Published : 2014.09.30
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Abstract

Currently it is major problem of electric railway with increasing drive speed such as the arc generated by the pantograph detachment and the distortion current in the motor-block high speed switching. When physical contact between the pantograph and the catenary line is separated, the pantograph detachment arcing occurs and it makes up the conductive noise to the return feeder. We made the EMTP modeling of the railway traction system and the pantograph arc by circuit elements and switches. The influence of pantograph detachment frequency is investigated by changing some frequencies. The over-current occurs in each detachment and it oscillates some time at beginning and stabilizes gradually. The magnitude of over-current is decided by instantaneous value of existing traction return current. If the detachment occurs at a point of peak value or distortion current, the over-current will be more harmful to the power systems connected with the return feeder and will become to arise with increasing detachment frequency.

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References

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