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Methods to control dynamic stall for wind turbine applications

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  • Choudhry, Amanullah
  • Arjomandi, Maziar
  • Kelso, Richard

Abstract

Dynamic stall (DS) on a wind turbine is encountered when the sectional angles of attack of the blade rapidly exceeds the steady-state stall angle of attack due to in-flow turbulence, gusts and yaw-misalignment. The process is considered as a primary source of unsteady loads on wind turbine blades and negatively influences the performance and fatigue life of a turbine. In the present article, the control requirements for DS have been outlined for wind turbines based on an in-depth analysis of the process. Three passive control methodologies have been investigated for dynamic stall control: (1) streamwise vortices generated using vortex generators (VGs), (2) spanwise vortices generated using a novel concept of an elevated wire (EW), and (3) a cavity to act as a reservoir for the reverse flow accumulation. The methods were observed to delay the onset of DS by several degrees as well as reduce the increased lift and drag forces that are associated with the DSV. However, only the VG and the EW were observed to improve the post-stall characteristics of the airfoil.

Suggested Citation

  • Choudhry, Amanullah & Arjomandi, Maziar & Kelso, Richard, 2016. "Methods to control dynamic stall for wind turbine applications," Renewable Energy, Elsevier, vol. 86(C), pages 26-37.
    • Handle: RePEc:eee:renene:v:86:y:2016:i:c:p:26-37
    DOI: 10.1016/j.renene.2015.07.097
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    Citations

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    Cited by:

    1. Thé, Jesse & Yu, Hesheng, 2017. "A critical review on the simulations of wind turbine aerodynamics focusing on hybrid RANS-LES methods," Energy, Elsevier, vol. 138(C), pages 257-289.
    2. Zhu, Chengyong & Qiu, Yingning & Wang, Tongguang, 2021. "Dynamic stall of the wind turbine airfoil and blade undergoing pitch oscillations: A comparative study," Energy, Elsevier, vol. 222(C).
    3. Li, Qing'an & Kamada, Yasunari & Maeda, Takao & Murata, Junsuke & Nishida, Yusuke, 2016. "Effect of turbulent inflows on airfoil performance for a Horizontal Axis Wind Turbine at low Reynolds numbers (Part II: Dynamic pressure measurement)," Energy, Elsevier, vol. 112(C), pages 574-587.
    4. Fatehi, Mostafa & Nili-Ahmadabadi, Mahdi & Nematollahi, Omid & Minaiean, Ali & Kim, Kyung Chun, 2019. "Aerodynamic performance improvement of wind turbine blade by cavity shape optimization," Renewable Energy, Elsevier, vol. 132(C), pages 773-785.
    5. Taurista P. Syawitri & Yufeng Yao & Jun Yao & Budi Chandra, 2022. "A review on the use of passive flow control devices as performance enhancement of lift‐type vertical axis wind turbines," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 11(4), July.
    6. De Tavernier, D. & Ferreira, C. & Viré, A. & LeBlanc, B. & Bernardy, S., 2021. "Controlling dynamic stall using vortex generators on a wind turbine airfoil," Renewable Energy, Elsevier, vol. 172(C), pages 1194-1211.
    7. Zhu, Chengyong & Chen, Jie & Wu, Jianghai & Wang, Tongguang, 2019. "Dynamic stall control of the wind turbine airfoil via single-row and double-row passive vortex generators," Energy, Elsevier, vol. 189(C).
    8. Abdolahifar, Abolfazl & Karimian, S.M.H., 2022. "A comprehensive three-dimensional study on Darrieus vertical axis wind turbine with slotted blade to reduce flow separation," Energy, Elsevier, vol. 248(C).
    9. Zhong, Junwei & Li, Jingyin & Guo, Penghua & Wang, Yu, 2019. "Dynamic stall control on a vertical axis wind turbine aerofoil using leading-edge rod," Energy, Elsevier, vol. 174(C), pages 246-260.
    10. Unai Fernandez-Gamiz & Ekaitz Zulueta & Ana Boyano & Igor Ansoategui & Irantzu Uriarte, 2017. "Five Megawatt Wind Turbine Power Output Improvements by Passive Flow Control Devices," Energies, MDPI, vol. 10(6), pages 1-15, May.
    11. Zhong, Junwei & Li, Jingyin & Liu, Huizhong, 2023. "Dynamic mode decomposition analysis of flow separation control on wind turbine airfoil using leading−edge rod," Energy, Elsevier, vol. 268(C).
    12. Tamimi, V. & Wu, J. & Esfehani, M.J. & Zeinoddini, M. & Naeeni, S.T.O., 2022. "Comparison of hydrokinetic energy harvesting performance of a fluttering hydrofoil against other Flow-Induced Vibration (FIV) mechanisms," Renewable Energy, Elsevier, vol. 186(C), pages 157-172.
    13. Karbasian, Hamid Reza & Esfahani, Javad Abolfazli & Aliyu, Aliyu Musa & Kim, Kyung Chun, 2022. "Numerical analysis of wind turbines blade in deep dynamic stall," Renewable Energy, Elsevier, vol. 197(C), pages 1094-1105.
    14. Nakhchi, M.E. & Naung, S. Win & Dala, L. & Rahmati, M., 2022. "Direct numerical simulations of aerodynamic performance of wind turbine aerofoil by considering the blades active vibrations," Renewable Energy, Elsevier, vol. 191(C), pages 669-684.
    15. Jaunet, V. & Braud, C., 2018. "Experiments on lift dynamics and feedback control of a wind turbine blade section," Renewable Energy, Elsevier, vol. 126(C), pages 65-78.
    16. Yu-Jen Chen & Y. C. Shiah, 2016. "Experiments on the Performance of Small Horizontal Axis Wind Turbine with Passive Pitch Control by Disk Pulley," Energies, MDPI, vol. 9(5), pages 1-13, May.

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