Journal of Wind Energy (풍력에너지저널)

Korea Wind Energy Association (한국풍력에너지학회)
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Wind resource evaluation and verification of wind map with simultaneous observation at six offshore locations in Gunsan and Yeonggwang

군산·영광 해상 6개 지점 동시 관측을 통한 풍력자원 평가 및 바람지도 검증

  • Moon-Seon Jeong ;
  • In-Sung Jeon ;
  • Ji-Young Kim
  • 정문선 (한국전력공사 전력연구원, 신재생에너지연구소) ;
  • 전인성 (한국전력공사 전력연구원, 신재생에너지연구소) ;
  • 김지영 (한국전력공사 전력연구원, 신재생에너지연구소)
  • Received : 2023.01.17
  • Accepted : 2023.04.12
  • Published : 2023.09.30
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Abstract

Floating LiDAR systems (FLSs) are used in many countries because they are easier to install than stationary weather towers, have low maintenance costs, and can be installed in deep sea areas. However, FLSs are rarely used in Korea due to a lack of clear evaluation criteria to verify the reliability and uncertainty of their measurements. This study is the first to verify the reliability of FLSs in Korea with one-year simultaneous observation of six lidar systems - two fixed and four floating systems - in sea areas of Gunsan and Yeonggwang. The reliability of FLSs measurement data was verified by comparison between fixed and floating systems. Moreover, differences between existing wind resource maps and the data observed from the six points were analyzed and wind resource maps were calibrated. The results show a return rate of more than 95 % of the observed data and strong correlations between fixed and floating systems (average R2 of 0.977). Additionally, errors in wind speed predictions to produce a wind resource map could be significantly reduced from 5.7 % to 0.6 % after calibrations with the observation data.

Keywords

Acknowledgement

이 연구는 2020-2021년도 산업통상자원부의 재원으로 한국에너지공단의 지원을 받아 수행한 "국가주도 해상풍력 적합입지 발굴사업" 과제의 결과물을 재정리한 것입니다. (산업통상자원부공고 제2020-470호)

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