Wind and Structures

  • 제16권3호
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  • Pages.263-278
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  • 2013
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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Active load control for wind turbine blades using trailing edge flap

  • 투고 : 2011.09.22
  • 심사 : 2012.04.02
  • 발행 : 2013.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The fatigue load of a turbine blade has become more important because the size of commercial wind turbines has increased dramatically in the past 30 years. The reduction of the fatigue load can result in an increase in operational efficiency. This paper numerically investigates the load reduction of large wind turbine blades using active aerodynamic load control devices, namely trailing edge flaps. The PD and LQG controllers are used to determine the trailing edge flap angle; the difference between the root bending moment and its mean value during turbulent wind conditions is used as the error signal of the controllers. By numerically analyzing the effect of the trailing edge flaps on the wind turbines, a reduction of 30-50% in the standard deviation of the root bending moment was achieved. This result implies a reduction in the fatigue damage on the wind turbines, which allows the turbine blade lengths to be increased without exceeding the designed fatigue damage limit.

키워드

과제정보

연구 과제 주관 기관 : Korea Institute of Energy Technology Evaluation and Planning (KETEP)

참고문헌

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피인용 문헌

  1. Active load control of wind turbine blade section with trailing edge flap: Wind tunnel testing vol.25, pp.18, 2014, https://doi.org/10.1177/1045389X14544143
  2. Statistical wind prediction and fatigue analysis for horizontal-axis wind turbine composite material blade under dynamic loads vol.9, pp.9, 2017, https://doi.org/10.1177/1687814017724088
  3. An integrator based wind speed estimator for wind turbine control vol.21, pp.4, 2015, https://doi.org/10.12989/was.2015.21.4.443
  4. Dynamic Stall Control on the Wind Turbine Airfoil via a Co-Flow Jet vol.9, pp.12, 2016, https://doi.org/10.3390/en9060429
  5. Vibration control of small horizontal axis wind turbine blade with shape memory alloy vol.21, pp.3, 2013, https://doi.org/10.12989/sss.2018.21.3.257
  6. Optimal Fault Tolerant Control of Large-Scale Wind Turbines in the Case of the Pitch Actuator Partial Faults vol.2020, pp.None, 2020, https://doi.org/10.1155/2020/6210407
  7. Aerodynamic load control on a dynamically pitching wind turbine airfoil using leading-edge protuberance method vol.36, pp.2, 2013, https://doi.org/10.1007/s10409-020-00939-2
  8. Flutter study of flapwise bend-twist coupled composite wind turbine blades vol.32, pp.3, 2021, https://doi.org/10.12989/was.2021.32.3.267
  9. Long-term fatigue reliability enhancement of horizontal axis wind turbine blade vol.33, pp.2, 2013, https://doi.org/10.12989/was.2021.33.2.169