한국산학기술학회논문지 (Journal of the Korea Academia-Industrial cooperation Society)

  • 제13권3호
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  • Pages.1288-1295
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  • 2012
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  • 1975-4701(pISSN)
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  • 2288-4688(eISSN)
한국산학기술학회 (The Korea Academia-Industrial cooperation Society)
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풍력발전(DFIG)의 고압배전선로의 사고특성 해석에 관한 연구

A Study on Fault Characteristics of Wind Power in Distribution Feeders

  • 김소희 (한국기술교육대학교 전기전자통신공학부) ;
  • 김병기 (한국기술교육대학교 전기전자통신공학부) ;
  • 노대석 (한국기술교육대학교 전기전자통신공학부)
  • Kim, So-Hee (Korea University of Technology and Education, Electrical Engineering) ;
  • Kim, Byung-Ki (Korea University of Technology and Education, Electrical Engineering) ;
  • Rho, Dae-Seok (Korea University of Technology and Education, Electrical Engineering)
  • 투고 : 2012.01.06
  • 심사 : 2012.03.08
  • 발행 : 2012.03.31
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초록

2008년도 지식경제부의 전망에 의하면 신재생에너지전원 중 풍력발전의 보급전망은 2020년 37%, 2030년 42%에 달하고, 2012년부터 시행 예정인 신재생에너지 의무할당제(Renewable Portfolio Standard-RPS)의 도입으로 태양광 및 풍력 등의 신재생에너지가 향후 지속적으로 배전계통에 연계 운용될 것으로 예상된다. 현재 풍력은 배전계통에 전용선로로 연계되어 계통에 미치는 영향은 미미하지만, 3[MW] 이상의 대규모 풍력발전이 일반 배전선로로 확대 운용되면, 풍력발전 연계용 변압기 및 풍력발전기의 %임피던스에 의한 사고전류 변동으로 보호계전기(OCR, OCGR)의 오 부동작을 야기할 수 있다. 따라서 본 논문에서는 대표적인 풍력발전기인 이중여자유도발전기(Double-Fed Induction Generator-DFIG)가 고압 배전선로에 연계되어 운전되는 경우, 3상단락, 2선단락 및 1선지락의 사고특성을 분석하기 위하여, 전력계통 상용소프트웨어인 PSCAD/EMTDC를 이용하여 풍력발전기의 모델링과 시뮬레이션을 수행하고, 대칭좌표법을 통한 이론적인 수치해석의 결과치를 비교/분석하여, 제안한 수법의 유용성을 확인하였다.

Korea Ministry of Knowledge Economy has estimated that wind power (WP) will be occupied 37% in 2020 and 42% in 2030 of the new energy sources, and also green energies such as photovoltaic (PV) and WP are expected to be interconnected with the distribution system because of Renewable Portfolio Standard (RPS) starting from 2012. However, when a large scale wind power plant (over 3[MW]) is connected to the traditional distribution system, protective devices (mainly OCR and OCGR of re-closer) will be occurred mal-function problems due to changed fault currents it be caused by Wye-grounded/Delta winding of interconnection transformer and %impedance of WP's turbine. Therefore, when Double-Fed Induction Generator (DFIG) of typical WP's Generator is connected into distribution system, this paper deals with analysis three-phase short, line to line short and a single line ground faults current by using the symmetrical components of fault analysis and PSCAD/EMTDC modeling.

키워드

참고문헌

  1. Moon-Seok Jang and Hyung-Joon Bang, "The Current Status and the Prospects of Wind Energy", Journal of the Environmental Sciences, vol 18 No 8, pp. 933-940, August, 2009.
  2. New Energy and Renewable Energy Development, Use, and Spread Promotion Law
  3. Philip P. Barker, Robert W. de Mello," Determining the impact of distributed generation on power systems: Part 1 - Radial distribution systems", in Proc. IEEE Power Eng. Soc. Summer Meeting, vol 3, pp 1645-1656, 2000.
  4. A. Girgis, S. Brahma, "Effect of Distributed Generation on Protective Device Coordination in Distribution System," Power Engineering, LESCOPE'01. 2001 Large Engineering Systems Conference, 11-13, pp. 115-119. July, 2001.
  5. IEEE 1547.1 "IEEE Standard conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power System", J, 2005.6
  6. R. F. Arritt, R. C. Dugan"Distributed generation interconnection transformer and grounding selection" Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, IEEE. pp. 1-7, 2008
  7. http://www.enercon.de/
  8. M. Kuhn, M, B Becker, "Enron WInd 3.6 Offshore : Example for the next Generation of Offshore Wind Turbines", 2002 Global Wind Power Conference, 2002.7
  9. Dr. Eggert, S. Franko, "Innocative Variable Speed Drive for Doublu Fed Wind Turbine Application", 2002 Global Wind Power Conference, July, 2002.
  10. Daeseok Rho, "KUT_Electrical Equipment_(Practice)", February, 2010.
  11. Dong-yeol Shin, "An Analysis and Countermeasure for the Reverse-Power-Flow Phenomena of Distribution System interconnected with Distributed Generations", Chungnam National University, February, 2009.
  12. Byoung-Chang Jeong, "Wind Generator Control Algorithm for Inrush Current Restraint and Torque Ripple Compensation of Doubly-Fed Induction Generator", Chonbuk National University, February, 2006.

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  1. A Study on the Modeling and Operation Algorithm of Independent Power System for Carbon Free vol.65, pp.5, 2016, https://doi.org/10.5370/KIEE.2016.65.5.760