Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Reliability assessment of ERA-Interim/MERRA reanalysis data for the offshore wind resource assessment

해상풍력자원 평가를 위한 ERA-Interim/MERRA 재해석 데이터 신뢰성 평가

  • Byun, Jong-Ki (Faculty of Wind Energy Engineering, Graduate School, Jeju National University) ;
  • Son, Jin-Hyuk (Faculty of Wind Energy Engineering, Graduate School, Jeju National University) ;
  • Ko, Kyung-Nam (Faculty of Wind Energy Engineering, Graduate School, Jeju National University)
  • 변종기 (제주대학교 대학원 풍력공학부) ;
  • 손진혁 (제주대학교 대학원 풍력공학부) ;
  • 고경남 (제주대학교 대학원 풍력공학부)
  • Received : 2016.05.09
  • Accepted : 2016.08.10
  • Published : 2016.08.31
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Abstract

An investigation on reliability of reanalysis wind data was conducted using the met mast wind data at four coastal regions, Jeju Island. Shinchang, Handong, Udo and Gangjeong sites were chosen for the met mast sites, and ERA-Interim and MERRA reanalysis data at two points on the sea around Jeju Island were analyzed for creating Wind Statistics of WindPRO software. Reliability of reanalysis wind data was assessed by comparing the statistics from the met mast wind data with those from Wind Statistics of WindPRO software. The relative error was calculated for annual average wind speed, wind power density and annual energy production. In addition, Weibull wind speed distribution and monthly energy production were analyzed in detail. As a result, ERA-Interim reanalysis data was more suitable for wind resource assessment than MERRA reanalysis data.

Keywords

References

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  1. 육·해상 풍력자원평가를 위한 ERA-Interim 재해석 데이터의 적용 vol.37, pp.2, 2016, https://doi.org/10.7836/kses.2017.37.2.001
  2. 풍력자원평가를 위한 단순지형에서의 육상 기상탑 바람 데이터의 상호 적용 vol.21, pp.6, 2017, https://doi.org/10.9726/kspse.2017.21.6.031