풍력에너지저널 (Journal of Wind Energy)

  • 제9권3호
  • /
  • Pages.19-24
  • /
  • 2018
  • /
  • 2093-5099(pISSN)
  • /
  • 2733-9467(eISSN)
한국풍력에너지학회 (Korea Wind Energy Association)
권호 표지

재해석자료를 이용한 전지구 풍력자원의 장기간 통계분석

Long-Term Statistical Analysis of Global Wind Resources Using Reanalysis Data

  • 김현구 (한국에너지기술연구원, 신재생에너지자원.정책센터) ;
  • 김진영 (한국에너지기술연구원, 신재생에너지자원.정책센터) ;
  • 김하양 (한국에너지기술연구원, 신재생에너지자원.정책센터)
  • 투고 : 2018.06.22
  • 심사 : 2018.08.21
  • 발행 : 2018.09.30

⟨ 이전 논문 다음 논문 ⟩

초록

Third-generation reanalysis data such as CFSR, ERA-Interim, and MERRA, which have improved spatial resolution and accuracy by assimilating satellite observation data, are widely used for the long-term correction of wind resource assessments. However, there is no obvious criterion for the selection of datasets, and the reported accuracy from actual application cases are all different. In this study, we provide basic information for estimating the uncertainty of reanalysis data selection by reviewing the characteristics of each dataset with a quantitative comparison of three kinds of reanalysis data. The wind speed and wind power density showed significant differences between the reanalysis data, but there was relatively little difference in the Weibull shape factor, which defines wind speed distribution. It was found that wind speed distribution in a low latitude band follows normal distribution rather than a Weibull shape. In conclusion, substantial uncertainty is expected depending on the reanalysis data, and further comparison analysis to establish its application guideline is anticipated.

키워드

과제정보

연구 과제 주관 기관 : 한국에너지기술연구원

참고문헌

  1. Kim, H.-G., Kang, Y.-H., Yun, C.-Y., and Jang, M.-S., 2013, "Long-Term Wind Resource Assessment of Shinan-gun Bigeum-do Using the Wind Farm SCADA Data and Reanalysis Data," J. of Wind Engineering Institute of Korea, Vol. 17, No. 4, pp. 127-132 (in Korean).
  2. Eichelberger, S., Stoelinga, M., and McCaa, J., 2013, "Performance of New Reanalysis Data Sets for Estimating the Temporal and Spatial Variability of Wind Resource," European Wind Energy Conference 2013, Vienna, Austria.
  3. Brower, M.C., Barton, M.S., Lledo, L., and Dubois, J., 2013, A Study of Wind Speed Variability Using Global Reanalysis Data, Technical Report, AWS Truepower, USA, p. 12
  4. Kim, H.-G., Kim, J.-Y., and Kang, Y.-H., 2018, "Comparative Evaluation of the Third-Generation Reanalysis Data for Wind Resource Assessment of the Southwestern Offshore in South Korea," Atmosphere, Vol. 9, No. 73.
  5. Kim, H.-G., Jang, M.-S., and Ryu, K.-W., 2013, "Wind Resource Assessment on the Western Offshore of Korea Using MERRA Reanalysis Data," Journal of Wind Energy, Vol. 4, No. 1, pp. 39-45 (in Korean).
  6. Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, and D., Gandin, L., 1996, "The NCEP/NCAR 40-Year Reanalysis Project," Bull. Amer. Meteor. Soc., Vol. 77, pp. 437-471. https://doi.org/10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2
  7. Kanamitsu, M., Ebisuzaki, W., Woollen, J., Yang, S.K., Hnilo, J.J., Fiorino, M., and Potter, G.L., 2002, "NCEP-DOE AMIP-II Reanalysis(R-2)," Bull. Amer. Meteor. Soc., Vol. 83, pp. 1631-1643. https://doi.org/10.1175/BAMS-83-11-1631
  8. Saha, S., Moorthi, S., Pan, H.L., Wu, X., Wang, J., Nadiga, S., Tripp, P., and Kistler, R., 2010, "The NCEP Climate Forecast System Reanalysis," Bull. Amer. Meteor. Soc., Vol. 91, pp. 1015-1057. https://doi.org/10.1175/2010BAMS3001.1
  9. Dee, D.P., Uppala, S.M., Simmons, A.J., Berrisford, P., and Poli, P., 2011, "The ERA-Interim Reanalysis: Configuration and Performance of the Data Assimilation System," Q.J.R. Meteorol. Soc., Vol. 137. pp. 553-597 https://doi.org/10.1002/qj.828
  10. Rienecker, M.M., Suarez, M.J., Gelaro, R., Todling, R., and Bacmeister, J., 2011, "MERRA: NASA's Modern-Era Retrospective Analysis for Research & Applications," J. Climate, Vol. 24, pp. 3624-3648. https://doi.org/10.1175/JCLI-D-11-00015.1
  11. Kim, H.-G., Kang, Y.-H., and Yun, C.-Y., 2015, "Comparative Analysis on Commercial Wind Resource Maps of South Korea," J. of Wind Engineering Institute of Korea, Vol. 19, No. 1, pp. 9-14 (in Korean).