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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A Study on Reliability Evaluation for Constructing Inner Grid of Offshore Wind Farm

해상풍력단지의 내부 계통망 구성을 위한 신뢰도 평가에 관한 연구

  • Bae, In-Su (Department of Electrical Eng. Kangwon National University) ;
  • Shin, Je-Seok (Department of Electrical Eng. Kangwon National University) ;
  • Kim, Jin-O (Department of Electrical Eng, Hanyang University)
  • 배인수 (강원대학교 전기공학과) ;
  • 신제석 (강원대학교 전기공학과) ;
  • 김진오 (한양대학교 전기생체공학부)
  • Received : 2013.09.25
  • Accepted : 2013.10.14
  • Published : 2013.11.30
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Abstract

In resent years, Offshore Wind Farm (OWF) is being actively developed. Typically, OWF has a better wind resource than onshore one, but also have a very high investment cost and maintenance cost. Furthermore, due to a difficulty of geographical access, OWF can be affected by the failure for a longer time. As the result, OWF has a higher loss cost. Therefore, a reliability evaluation should be performed more carefully at OWF planning stage. In this paper, a methodology for the reliability evaluation on inner grid is suggested. Inner grid connects wind turbines via submarine cables and transfers power to offshore substation. According to location of the faulted cable under layouts of inner grid, the transfer ability of inner grid is influenced. In order to indicate the transfer ability of inner grid, several indices are introduced such as PNDR, EEND and EENDC. To demonstrate the methodology described in this paper, diversity case studies were performed.

Keywords

References

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  1. A Study on the Power Loss Cost of Inner-Grid in the Offshore Wind Farm vol.28, pp.3, 2014, https://doi.org/10.5207/JIEIE.2014.28.3.072
  2. Optimal Design for Offshore Wind Farm considering Inner Grid Layout and Offshore Substation Location vol.32, pp.3, 2017, https://doi.org/10.1109/TPWRS.2016.2593501