STUDY ON INFLUENCE OF SCALE ENLARGEMENT OF WIND TURBINE ON DYNAMIC RESPONSE OF TENSION LEG FLOATING WIND TURBINE

Liu Yingfang; Su Ouming; Li Zhiyu; Li Yan; Cui Yiwen; Li Guoyan

doi:10.19912/j.0254-0096.tynxb.2025-0785

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (9) : 819-826. DOI: 10.19912/j.0254-0096.tynxb.2025-0785

STUDY ON INFLUENCE OF SCALE ENLARGEMENT OF WIND TURBINE ON DYNAMIC RESPONSE OF TENSION LEG FLOATING WIND TURBINE

Liu Yingfang¹, Su Ouming^2,3, Li Zhiyu¹, Li Yan^2,3, Cui Yiwen^2,3, Li Guoyan^2,3

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Abstract

In order to study the effect of large scale wind turbine in tension leg type FOWT （Floating Offshore Wind Turbine）, the DTU 10 MW and NREL 5 MW wind turbines are taken as the research objects, and the coupling model of wind turbine-tower-floating foundation-mooring system is established. Time domain simulation is carried out and the influence of large scale FOWT is studied by comparing the difference in the floating foundation motion and blade deformation results. The results show that the large scale wind turbine leads to the increase of the motion of the floating foundation and makes the coupling effect more conspicuous and the frequency component more complex. Under the rated environmental condition, compared with the 5 MW model, the mean value of the surge motion of the 10 MW floating wind turbine increases by 47.2%, and the equilibrium position of the heave motion changes significantly. The intensity of the pitch motion is 1.7 times that of the former, and the pitch motion of the foundation exhibits more complex resonance characteristics. Meanwhile, the average out-of-plane deformation of the large scale wind turbine blade is 1.6 times that of the 5 MW wind turbine, and the in-plane deformation intensity is 1.8 times that of the 5 MW model. In addition, the blade deformation of 10 MW floating wind turbine is more sensitive to change of wind speed.

Key words

floating wind turbines / tension-leg platform / dynamic response / coupling model / large scale wind turbine / blade deformation

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Liu Yingfang, Su Ouming, Li Zhiyu, Li Yan, Cui Yiwen, Li Guoyan. STUDY ON INFLUENCE OF SCALE ENLARGEMENT OF WIND TURBINE ON DYNAMIC RESPONSE OF TENSION LEG FLOATING WIND TURBINE[J]. Acta Energiae Solaris Sinica. 2026, 47(9): 819-826 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0785

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