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Study on the Rotation Effect on the Modal Performance of Wind Turbine Blades

Author

Listed:
  • Yewen Chen

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    The Key Laboratory of Wind Energy Utilization of CAS, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Shuni Zhou

    (GuangDong HaiZhuang Offshore WindPower Research Center Co., Ltd., Zhanjiang 524100, China
    Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524013, China)

  • Chang Cai

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    The Key Laboratory of Wind Energy Utilization of CAS, Beijing 100190, China)

  • Weilong Wang

    (GuangDong HaiZhuang Offshore WindPower Research Center Co., Ltd., Zhanjiang 524100, China
    Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524013, China)

  • Yuheng Hao

    (GuangDong HaiZhuang Offshore WindPower Research Center Co., Ltd., Zhanjiang 524100, China
    Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524013, China)

  • Teng Zhou

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    The Key Laboratory of Wind Energy Utilization of CAS, Beijing 100190, China)

  • Xinbao Wang

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    The Key Laboratory of Wind Energy Utilization of CAS, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Qingan Li

    (Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
    The Key Laboratory of Wind Energy Utilization of CAS, Beijing 100190, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

With the large-scale development of wind turbines, large flexible blades bear heavier loads. In the actual rotating work of blades, the coupling of structural deformation and motion produces a dynamic stiffening effect and spin softening effect, which affects the dynamic characteristics of blades. In this study, the finite element method is used to model the NREL 5MW blade, and the dynamic stiffening and spin softening effects are investigated using the modal analysis. The influence of rotating effects on the blade’s natural frequency is revealed. It is concluded that the effect of dynamic stiffening is more significant than that of spin softening, and the comprehensive result of the two effects is not simply the superposition of them but presents obvious nonlinearity.

Suggested Citation

  • Yewen Chen & Shuni Zhou & Chang Cai & Weilong Wang & Yuheng Hao & Teng Zhou & Xinbao Wang & Qingan Li, 2023. "Study on the Rotation Effect on the Modal Performance of Wind Turbine Blades," Energies, MDPI, vol. 16(3), pages 1-11, January.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:3:p:1036-:d:1038906
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    References listed on IDEAS

    as
    1. Yuqiao Zheng & Yongyong Cao & Chengcheng Zhang & Zhe He, 2017. "Structural Optimization Design of Large Wind Turbine Blade considering Aeroelastic Effect," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-7, October.
    2. Amr Ismaiel & Shigeo Yoshida, 2019. "Aeroelastic Analysis of a Coplanar Twin-Rotor Wind Turbine," Energies, MDPI, vol. 12(10), pages 1-21, May.
    3. Khan, M.J. & Iqbal, M.T., 2005. "Dynamic modeling and simulation of a small wind–fuel cell hybrid energy system," Renewable Energy, Elsevier, vol. 30(3), pages 421-439.
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