DOI QR코드

DOI QR Code

An Analysis on the Overvoltage in Gas Insulated Transmission Lines with EMTP/ATPDraw

EMTP/ATPDraw를 이용한 가스절연송전선로(GIL)의 과전압 분석

  • Received : 2011.03.15
  • Accepted : 2011.04.04
  • Published : 2011.05.01

Abstract

Nowadays, it is becoming difficult to secure a transmission line route when a new transmission line is constructed due to social environment and resident complaints. As existing urban areas are expanded and new cities are constructed, the necessity of high-capacity underground power transmission has been increasing because of load concentration in downtown areas. In North America, Europe and Japan, the research has been carried out for 2nd generation gas insulated transmission lines(GIL) which is more environmentally friendly and economical compared to previous GILs. The new GILs have been applied to real power systems from early 2000s. In South Korea, GIL is being considered as a possible solution for replacing 345kV high-capacity overhead transmission lines with underground transmission ones, so KEPCO is planning to develop and apply a new 362kV rated GIL underground transmission lines instead of overhead transmission lines. In this paper, the overvoltage generated at the combined transmission line adapting GIL was reviewed using EMTP.

References

  1. 한국전력공사 전력연구원 기술동향 2008.09
  2. CIGRE Brochure 218, "Gas Insulated Transmission Line", 2002
  3. H.Koch, G.Schoeffner, "Gas-Insulated Transmission Line(GIL) : An Overview", No 211, December 2003, ELECTRA
  4. 정채균, "가스절연송전선로의 서지특성 분석에 관한 연구", 2009년 대한전기학회 하계학술대회 논문집
  5. 정채균, "345kV 혼합송전선로에서 재폐로가 절연설계에 미치는 영향", 2010년 5월, 대한전기학회 논문집
  6. LS전선, "345kV 가스절연송전선로 및 감시시스템 개발" 1단계 세부보고서, 2009.07
  7. Akihiro Ametani, "Distributed Parameter Circuit Theory", Tokyo, Japan, 1990
  8. 한국전력공사 중앙교육원, "써지해석반", 2002
  9. 심응보, "The lightning Current Parameters that Impact on the Surge Analysis of the EHV Gas Insulated Substation by EMTP", 2005. 01, 대한전기학회 영문논문집
  10. J.S. Kwak, "Application of Arrester to Double Circuit Transmission Line to Enhance lightning Performance and Introduction about the Obtained lightning Waveforms by Monitoring Systems", 2006 ILDC/ILMC Conference, 2006.04