Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Characteristics of Fatigue Load in a Wind Turbine by the Wake

후류에 의한 풍력터빈의 피로하중 특성

  • Kim, Chung-Ok (Multidisciplinary Graduate School for Wind Energy, Jeju National University) ;
  • Eum, Hark-Jin (Green & Industrial Technology Center, Korean Register) ;
  • Nam, Hyun-Woo (Green & Industrial Technology Center, Korean Register) ;
  • Kim, Gui-Shik (Faculty of Mechanical System Engineering, Jeju National University)
  • 김충옥 (제주대학교 대학원 풍력특성화협동과정) ;
  • 음학진 (한국선급 녹색산업기술원) ;
  • 남현우 (한국선급 녹색산업기술원) ;
  • 김귀식 (제주대학교 기계시스템공학부)
  • Received : 2011.09.30
  • Accepted : 2011.12.14
  • Published : 2011.12.30
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Abstract

The wake generated by a wind turbine has an effect on performance of a downstream wind turbine as well as mechanical loads. This paper investigated characteristics of fatigue load at the blade root due to the wake effects and quantitatively analyzed its effects at operating condition of a 5MW tripod offshore wind turbine using Bladed 4.1 software. The wake effects was studied the way the wake's center position move from the rotor center to the blade tip to the far-away position where the wake doesn't affect the wind turbine. When wake's center was located on the blade tip or the rotor center, damage equivalent fatigue load was higher than other positions. It was up to 10~14% compared to those of non-wake case. Results of this study would be helpful to design wind turbines and wind farms to have lifetimes more than 20 years of the wind turbine.

Keywords

References

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Cited by

  1. Study on the effect of wake on the performance and load of a downstream wind turbine vol.34, pp.2, 2014, https://doi.org/10.7836/kses.2014.34.2.098