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Variation of AEP to wind direction variability

풍향의 변동성에 따른 연간에너지 발전량의 변화

  • Kim, Hyeon-Gi (Dept.of Mechanical and Mechatronics Engineering, Graduate School, Kangwon National University) ;
  • Kim, Byeong-Min (Dept.of Mechanical and Mechatronics Engineering, Graduate School, Kangwon National University) ;
  • Paek, In-Su (Dept.of Mechanical and Mechatronics Engineering, Kangwon National University) ;
  • Yoo, Neung-Soo (Dept. of Mechanical and Mechatronics Engineering, Kangwon National University) ;
  • Kim, Hyun-Goo (Korea Institute of Energy Research)
  • 김현기 (강원대학교 대학원 기계메카트로닉스공학과) ;
  • 김병민 (강원대학교 대학원 기계메카트로닉스공학과) ;
  • 백인수 (강원대학교 기계메카트로닉스공학과) ;
  • 유능수 (강원대학교 기계메카트로닉스공학과) ;
  • 김현구 (한국에너지기술연구원)
  • Received : 2011.05.18
  • Accepted : 2011.07.12
  • Published : 2011.10.30

Abstract

In this study, we performed a sensitivity analysis to see how the true north error of a wind direction vane installed to a meteorological mast affects predictions of the annual-average wind speed and the annual energy production. For this study, two meteorological masts were installed with a distance of about 4km on the ridge in complex terrain and the wind speed and direction were measured for one year. Cross predictions of the wind speed and the AEP of a virtual wind turbine for two sites in complex terrain were performed by changing the wind direction from $-45^{\circ}$ to $45^{\circ}$with an interval of $5^{\circ}$. A commercial wind resource prediction program, WindPRO, was used for the study. It was found that the prediction errors in the AEP caused by the wind direction errors occurred up to more than 20% depending on the orography and the main wind direction at that site.

Keywords

References

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Cited by

  1. Variation of Capacity Factors by Weibull Shape Parameters vol.33, pp.1, 2013, https://doi.org/10.7836/kses.2013.33.1.032