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Study on load distribution characteristics and wind-resistant performance of standstill wind turbines considering the effect of wind veer

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  • Wu, Tao
  • Cheng, YiEr
  • Sun, Ying
  • Zhang, Jian

Abstract

The increasing size of wind turbines has amplified the effects of wind veer, leading to significant differences in the response of wind turbines under varying wind fields. This study, based on Ekman theory, uses CFD simulations to investigate the effect of wind veer on wind load distribution of DTU 10 MW wind turbine under shutdown state. The effectiveness of the numerical method is verified by comparing the node pressure of tower, blade and rotor thrust with results from OpenFAST. A numerical model of the wind turbine is developed in ANSYS to assess its wind-resistance performance. The results indicate that wind veer significantly alters the responses of wind turbine. Specifically, compared with the wind field without veering, the lateral thrust of the wind turbine at 30° veering angle increases by nearly 6 times, while the torque around the z-axis increases by nearly 8 times, resulting in more pronounced torsional deformation of the wind turbine. Moreover, the wind veer changes the locations of maximum displacement and stress on wind turbine.

Suggested Citation

  • Wu, Tao & Cheng, YiEr & Sun, Ying & Zhang, Jian, 2025. "Study on load distribution characteristics and wind-resistant performance of standstill wind turbines considering the effect of wind veer," Renewable Energy, Elsevier, vol. 254(C).
    • Handle: RePEc:eee:renene:v:254:y:2025:i:c:s0960148125013886
    DOI: 10.1016/j.renene.2025.123726
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