WIND-INDUCED RESPONSE AND VIBRATION SUPPRESSION  MEASURES OF FLEXIBLE PHOTOVOLTAIC SUPPORT ARRAY BASED ON AEROELASTIC MODEL WIND TUNNEL TEST

Gao Yifan; Li Shouying; Liu Jiaqi; Chen Zhengqing

doi:10.19912/j.0254-0096.tynxb.2023-1892

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 394-403. DOI: 10.19912/j.0254-0096.tynxb.2023-1892

WIND-INDUCED RESPONSE AND VIBRATION SUPPRESSION MEASURES OF FLEXIBLE PHOTOVOLTAIC SUPPORT ARRAY BASED ON AEROELASTIC MODEL WIND TUNNEL TEST

Gao Yifan^1,2, Li Shouying^1,2, Liu Jiaqi^1,2, Chen Zhengqing^1,2

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Abstract

Based on the aerodynamic model wind tunnel test, the wind-induced response of the flexible photovoltaic（PV） support array and the vibration suppression effect of the stability cable on the photovoltaic module were studied, considering the influence of wind speed, installation position and wind direction. The results show that there are obvious interference effects between each row of the flexible PV support array. The second and third rows of PV modules on the windward side are prone to wake-induced vibration at low wind speed （8-15 m/s）. And this kind of structure is prone to flutter when the wind speed is high. Flutter first occurred in the first row on the windward side of the PV support array, and the flutter critical wind speeds were respectively 18.0, 22.5 and 16.2 m/s at wind directions of 0°, 135° and 180°. With the increase of wind speed, flutter tended to extend to the leeward side. It is indicated that shielding between modules could improve the flutter critical wind speed of the structure. After adding stability cable, the structural integrity can be strengthened, which can effectively suppress the wake-induced vibration and flutter of PV modules.

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photovoltaic modules / flutter / vibration control / wind tunnel / wind-induced vibration / interference effect

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Gao Yifan, Li Shouying, Liu Jiaqi, Chen Zhengqing. WIND-INDUCED RESPONSE AND VIBRATION SUPPRESSION MEASURES OF FLEXIBLE PHOTOVOLTAIC SUPPORT ARRAY BASED ON AEROELASTIC MODEL WIND TUNNEL TEST[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 394-403 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1892

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