The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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An Investigation on Thrust Properties under Wind Shear for an On-Shore 2 MW Wind Turbine

윈드 쉬어에 의한 2MW급 육상용 풍력터빈의 추력 특성 확인

  • Lim, Chae Wook (Department of Mechanical Engineering, Hanbat National University)
  • 임채욱 (한밭대학교 기계공학과)
  • Received : 2015.05.27
  • Accepted : 2016.08.31
  • Published : 2016.12.01
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Abstract

Multi-MW wind turbines have very large blades over 40~50 m in length. Some factors like wind shear and tower shadow make an effect on asymmetric loads on the blades. Larger asymmetric loads are produced as the length of blade is getting longer. In this paper, a 2 MW on-shore wind turbine is considered and variations of thrust on 3 blades and rotor hub under wind shear are calculated by using a commercial Bladed S/W and dynamic properties of the thrust variations are investigated. It is shown that the amplitude of the asymmetric thrust on each blade under wind shear is getting larger as the wind speed increases, the frequency of the thrust variation on each blade is same as the one of rotor speed, and the frequency of the thrust variation at rotor hub is 3 times as high as the one of rotor speed.

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References

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Cited by

  1. A Study on Thrust Variation Based on the BEM Method for an Onshore 2 MW Wind Turbine under Wind Shear vol.9, pp.2, 2016, https://doi.org/10.33519/kwea.2018.9.2.002