STUDY ON EFFECTS OF BLADE DEFORMATION ON WIND TURBINE PERFORMANCE UNDER YAW CONDITIONS

Yang Dinghua; Zhou Le; Zhang Xianfeng; Ma Lu; Shen Xin; Du Zhaohui

doi:10.19912/j.0254-0096.tynxb.2024-2264

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (7) : 1-8. DOI: 10.19912/j.0254-0096.tynxb.2024-2264

STUDY ON EFFECTS OF BLADE DEFORMATION ON WIND TURBINE PERFORMANCE UNDER YAW CONDITIONS

Yang Dinghua¹, Zhou Le², Zhang Xianfeng¹, Ma Lu¹, Shen Xin^2,3, Du Zhaohui^2,3

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Abstract

In this paper, based on the free vortex wake model and the geometrically exact beam model, the aeroelastic characteristics of wind turbines under yaw conditions are studied, and the combined effects of platform yaw motion and blade deformation on wind turbine performance are discussed. The results show that the yaw motion of the floating platform may cause the fluctuation in blade normal inflow, which affects wind turbine performance. Under yaw condition, the average output power of the rotor is significantly higher than that under the fixed condition, while the flexible deformation of the blade will reduce the load of the rotor. The yaw motion of the floating platform causes the uneven distribution of the load on the rotor plane and the fluctuation of the pitch and yaw moments. Under yaw conditions, blade deformation is affected by the combined effects of gravity and floating platform motion. Blade flapwise deformation will reduce the normal inflow velocity of the blade, while torsional deformation will reduce the blade angle of attack, resulting in the decrease of wind turbine load.

Key words

offshore floating wind turbines / aerodynamics / deflection / yaw motion

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Yang Dinghua, Zhou Le, Zhang Xianfeng, Ma Lu, Shen Xin, Du Zhaohui. STUDY ON EFFECTS OF BLADE DEFORMATION ON WIND TURBINE PERFORMANCE UNDER YAW CONDITIONS[J]. Acta Energiae Solaris Sinica. 2026, 47(7): 1-8 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2264

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