STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS OF LARGE-TILT-ANGLE FLEXIBLE CABLE-SUPPORTED PHOTOVOLTAIC ARRAYS

Ma Wenyong; Chen Zhuwei; Zhang Shuhui; Chen Jian; Tan Yongjie; Wei Jiasheng

doi:10.19912/j.0254-0096.tynxb.2024-0721

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (9) : 455-462. DOI: 10.19912/j.0254-0096.tynxb.2024-0721

STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS OF LARGE-TILT-ANGLE FLEXIBLE CABLE-SUPPORTED PHOTOVOLTAIC ARRAYS

Ma Wenyong¹, Chen Zhuwei^1,2, Zhang Shuhui¹, Chen Jian³, Tan Yongjie³, Wei Jiasheng⁴

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Abstract

The flexible cable supported photovoltaic structure has light weight and small stiffness, and is prone to large vibration under the action of strong winds, resulting in structural damage. In this paper, the displacement response of flexible cable-supported photovoltaic arrays under different component inclination angles is analyzed by combining the wind tunnel test of rigid model pressure measurement and the finite element analysis method considering nonlinearity, and the influence of lateral connection on displacement response is explored. The results show that： there is an obvious dynamic interference effect between the flexible cable-supported photovoltaic array modules, the fluctuating displacement of the photovoltaic modules at the windward side is smaller than that on the leeward side under large tilt angles, and the interference effect is a dynamic amplification effect; Under the condition of large tilt angle, the photovoltaic modules at the windward side occurs vibration dominated by vertical bending, and vibration dominated by small torsion and small vertical bending occurs at the leeward side photovoltaic modules; The lateral connection effectively improves the torsional stiffness and further inhibits the torsional response of the structure. It is suggested that the lateral connection should be used to control the large wind-induced vibration of the flexible cable-supported photovoltaic supports in practical engineering applications.

Key words

photovoltaic modules / vibration control / wind tunnels / flexible cable-supported photovoltaic brackets / wind-induced vibration / interference effect

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Ma Wenyong, Chen Zhuwei, Zhang Shuhui, Chen Jian, Tan Yongjie, Wei Jiasheng. STUDY ON WIND-INDUCED RESPONSE CHARACTERISTICS OF LARGE-TILT-ANGLE FLEXIBLE CABLE-SUPPORTED PHOTOVOLTAIC ARRAYS[J]. Acta Energiae Solaris Sinica. 2025, 46(9): 455-462 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0721

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