The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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An Analysis on Rise of Rail Potential And A Study on Control Method for It in DC Feeding System

직류급전계통에서의 레일전위 상승 분석 및 억제 방안 연구

  • 민명환 (성균관대 전기전자 및 컴퓨터학과) ;
  • 정호성 (한국철도기술연구원 전철전력연구실) ;
  • 박영 (한국철도기술연구원 전철전력연구실) ;
  • 김형철 (한국철도기술연구원 전철전력연구실) ;
  • 신명철 (성균관대 전기전자 및 컴퓨터학과)
  • Received : 2011.01.03
  • Accepted : 2011.02.08
  • Published : 2011.03.01
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Abstract

Nowadays, in metropolitan railroad, DC feeding system is being generally applied. In order to reduce damages of electro-chemical corrosion caused by stray current and leakage current, in DC feeding system, rail is used as negative-polarity return conductor for traction load current. However, it has problem of rail potential increase and there are no adequate measures to prevent it in domestic. In this paper, we presented fundamental theory and related standards about rail potential increase. And then, we analyzed field testing data and simulated a variety of operations by using PSCAD/EMTDC as an analysis program of power system. In addition, voltage control device is suggested to prevent accidents caused by rail potential increase.

Keywords

References

  1. 조웅기, "직류전기철도 급전시스템에서 레일전위 해석을 위한 모델링", 한국조명.전기설비학회, 조명.전기설비학회논문지, 제24권 제6호, pp. 138-146, 2010.6. https://doi.org/10.5207/JIEIE.2010.24.6.138
  2. 한문섭, "직류철도의 레일누설전류 및 전위 평가", 한국철도학회논문집 제12권 제1호 (통권50호), pp. 161-166, 2009.2.
  3. 정상기, "비접지 급전시스템에서의 레일전위상승과 누설전류 계산", 한국철도학회 2006년도 추계학술대회논문집, pp. 8-12, 2006.11.
  4. Myunghwan Min, "A Study on the Real Time Measuring Technique of Return Current in the DC Railway System", 16th International Conference on Electric Engineering, July 2010.
  5. M.Niasati, A.Gholami, "Evaluation of Rail Potential Control Devices Performance for Control of Rail Potential of DC Electrified Railway Systems", International Conference on Railway Engineering, march 2008.

Cited by

  1. An Analysis of Influence Between the Power Feeding Line Insulation and Negative Rail Potential for the DC Ground Fault Protection in the Rubber Wheel System vol.62, pp.4, 2013, https://doi.org/10.5370/KIEE.2013.62.4.577
  2. An Evaluation of Selective Grounding Fault Protective Relaying Technique Performance on the Ungrounded DC Traction Power Supply System vol.61, pp.12, 2012, https://doi.org/10.5370/KIEE.2012.61.12.1964