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Analysis of Return Current by Common Earth on Electrical Line of the Gyeongbu Line

경부선 전철화 구간에서의 공동접지에 의한 귀선전류 분석

  • Received : 2010.10.05
  • Accepted : 2010.12.17
  • Published : 2010.12.31

Abstract

Electrical Railroads provide electric power, which can operate vehicles, via feeder wires. And the supplied current returns to the transformer substation through lines and ground net. In domestic cases, the configuration of ground net affecting such a return current mostly uses an exclusive earth method. However, along with the introduction to Gyeongbu HSL(High Speed Line), the concept of Common Earth was applied to Electrical Railroads. In this paper, based on the return currents analyzed to be measured in the electrified sections for the operation of High Speed Rails in existing lines, we analyze the relations between earth methods and return currents in electrified sections. For analysis, we utilize the measured values of return currents measured in track circuits in Gyeongbu HSL, and predictive values of those compared to the earth methods between Gyeongbu HSL and the existing electrified sections.

Keywords

Common Earth;Return Current;Gyeongbu Line;Electrical Railroad

Acknowledgement

Grant : 초고속 튜브철도 급전 및 신호 핵심기술개발

Supported by : 한국철도기술연구원

References

  1. 김용규외 1인, "$2{\times}25kV$ 급전방식에서의 공동접지망 적용에 따른 귀선전류의 영향", 대한전기학회논문지 제51B권 제9호, pp.509-514, 2002.
  2. 이길노외 3인, "전기철도시스템의 접지유형에 따른 귀선전류 비교", 2005 정보 및 제어 학술대회 논문집, pp.53-55.
  3. 김용규외 2인, "경부선 전철화 구간에서의 귀선전류 및 임피던스 예측", 2001 대한전자공학회하계학술대회 논문집, pp.123-126.
  4. 김용규외 2인, "기존선 전철화에 따른 궤도회로 특성 연구", 2004 대한전기학회 하계학술대회 논문집.
  5. Y.K, KIM and al, "Estimation and Measurement of the traction return current on the electrified Gyoungbu line", 2001 Proceedings of the International Conference on Control, Automation and Systems, pp.1458-1461.
  6. 이길노외 3인, "궤도회로에서의 공동접지와 단독접지 인터페이스", 2005년 한국철도학회 추계학술대회 논문집.
  7. 김용규 외 2인, "궤도회로의 유지보수 효율화를 위한 동조 유니트 특성 분석", 한국산학기술학회 논문지 제10권 제12호, pp.3594-3599, 2009. https://doi.org/10.5762/KAIS.2009.10.12.3594
  8. 철도청(1999), "경부선 동대구-부산간 전철화에 따른 신호 설비 실시 설계 보고서".
  9. 철도청(1999), "경부선 동대구-부산간 전철화에 따른 전력 설비 실시 설계 보고서".

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  2. Effect Analysis of Classical Line TI-21 type Audio Frequency Track Circuit from KTX Sancheon Return Current Harmonics vol.19, pp.1, 2016, https://doi.org/10.7782/JKSR.2016.19.1.38