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Downwind wind turbine yaw stability and performance

Author

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  • Kress, C.
  • Chokani, N.
  • Abhari, R.S.

Abstract

In this experimental work, the yaw stability and performance of three different downwind rotors are measured and compared to those of the corresponding upwind rotors. A modular scale-model wind turbine that allows for either upwind or downwind operation, with a range of rotor cone and yaw angles, is used. The measurements, at near full-scale Reynolds numbers, show all downwind rotor configurations have yaw stability. On the otherhand, upwind turbines are shown to be either unstable or to have significantly reduced yaw stability compared to the corresponding downwind rotor configurations. Downwind configurations with zero, 5° and 10° cone have higher shaft power and rotor thrust than the corresponding upwind configurations. For zero yaw, the 5° and 10° cone angle, the downwind configurations each yield 5% more power, and have only 3% higher thrust, than the upwind configurations, indicating a potential benefit in performance compared to upwind configurations. Overall, it is concluded that coned downwind configurations provide for easier yaw control and yield more power.

Suggested Citation

  • Kress, C. & Chokani, N. & Abhari, R.S., 2015. "Downwind wind turbine yaw stability and performance," Renewable Energy, Elsevier, vol. 83(C), pages 1157-1165.
  • Handle: RePEc:eee:renene:v:83:y:2015:i:c:p:1157-1165
    DOI: 10.1016/j.renene.2015.05.040
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    References listed on IDEAS

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    1. Armstrong, Shawn & Fiedler, Andrzej & Tullis, Stephen, 2012. "Flow separation on a high Reynolds number, high solidity vertical axis wind turbine with straight and canted blades and canted blades with fences," Renewable Energy, Elsevier, vol. 41(C), pages 13-22.
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    1. Meng, Haoran & Ma, Zhe & Dou, Bingzheng & Zeng, Pan & Lei, Liping, 2020. "Investigation on the performance of a novel forward-folding rotor used in a downwind horizontal-axis turbine," Energy, Elsevier, vol. 190(C).
    2. Weimin Wu & Xiongfei Liu & Jingcheng Liu & Shunpeng Zeng & Chuande Zhou & Xiaomei Wang, 2021. "Investigation into Yaw Motion Influence of Horizontal-Axis Wind Turbine on Wake Flow Using LBM-LES," Energies, MDPI, vol. 14(17), pages 1-37, August.
    3. Haojie Kang & Bofeng Xu & Xiang Shen & Zhen Li & Xin Cai & Zhiqiang Hu, 2023. "Comparison of Blade Aeroelastic Responses between Upwind and Downwind of 10 MW Wind Turbines under the Shear Wind Condition," Energies, MDPI, vol. 16(6), pages 1-13, March.
    4. Kress, C. & Chokani, N. & Abhari, R.S., 2016. "Passive minimization of load fluctuations on downwind turbines," Renewable Energy, Elsevier, vol. 89(C), pages 543-551.
    5. Dai, Juchuan & He, Tao & Li, Mimi & Long, Xin, 2021. "Performance study of multi-source driving yaw system for aiding yaw control of wind turbines," Renewable Energy, Elsevier, vol. 163(C), pages 154-171.
    6. Sang, Le Quang & Takao, Maeda & Kamada, Yasunari & Li, Qing'an, 2017. "Experimental investigation of the cyclic pitch control on a horizontal axis wind turbine in diagonal inflow wind condition," Energy, Elsevier, vol. 134(C), pages 269-278.
    7. Dai, Juchuan & Yang, Xin & Hu, Wei & Wen, Li & Tan, Yayi, 2018. "Effect investigation of yaw on wind turbine performance based on SCADA data," Energy, Elsevier, vol. 149(C), pages 684-696.
    8. Zhen Li & Bofeng Xu & Xiang Shen & Hang Xiao & Zhiqiang Hu & Xin Cai, 2022. "Performance Analysis of Ultra-Scale Downwind Wind Turbine Based on Rotor Cone Angle Control," Energies, MDPI, vol. 15(18), pages 1-11, September.
    9. Shigeo Yoshida, 2020. "Dynamic Stall Model for Tower Shadow Effects on Downwind Turbines and Its Scale Effects," Energies, MDPI, vol. 13(19), pages 1-18, October.
    10. Tetsuya Kogaki & Kenichi Sakurai & Susumu Shimada & Hirokazu Kawabata & Yusuke Otake & Katsutoshi Kondo & Emi Fujita, 2020. "Field Measurements of Wind Characteristics Using LiDAR on a Wind Farm with Downwind Turbines Installed in a Complex Terrain Region," Energies, MDPI, vol. 13(19), pages 1-24, October.
    11. Koh, J.H. & Ng, E.Y.K., 2016. "Downwind offshore wind turbines: Opportunities, trends and technical challenges," Renewable and Sustainable Energy Reviews, Elsevier, vol. 54(C), pages 797-808.
    12. Hoghooghi, Hadi & Chokani, Ndaona & Abhari, Reza.S., 2019. "Effectiveness of individual pitch control on a 5 MW downwind turbine," Renewable Energy, Elsevier, vol. 139(C), pages 435-446.
    13. Abdul Ghani Olabi & Tabbi Wilberforce & Khaled Elsaid & Enas Taha Sayed & Tareq Salameh & Mohammad Ali Abdelkareem & Ahmad Baroutaji, 2021. "A Review on Failure Modes of Wind Turbine Components," Energies, MDPI, vol. 14(17), pages 1-44, August.
    14. Sun, Qinghong & Li, Gen & Duan, Lei & He, Zanyang, 2023. "The coupling of tower-shadow effect and surge motion intensifies aerodynamic load variability in downwind floating offshore wind turbines," Energy, Elsevier, vol. 282(C).
    15. Sang, Le Quang & Li, Qing’an & Cai, Chang & Maeda, Takao & Kamada, Yasunari & Wang, Xinbao & Zhou, Shuni & Zhang, Fanghong, 2021. "Wind tunnel and numerical study of a floating offshore wind turbine based on the cyclic pitch control," Renewable Energy, Elsevier, vol. 172(C), pages 453-464.

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