WIND LOAD CHARACTERISTIC STUDY OF PHOTOVOLTAIC MODULES ON TYPICAL HIGHWAY SLOPE

Peng Qi; Wang Yu; Peng Bo; Huang Jian; Xie Mengchun; Chen Fubin

doi:10.19912/j.0254-0096.tynxb.2025-0280

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 481-490. DOI: 10.19912/j.0254-0096.tynxb.2025-0280

WIND LOAD CHARACTERISTIC STUDY OF PHOTOVOLTAIC MODULES ON TYPICAL HIGHWAY SLOPE

Peng Qi¹, Wang Yu¹, Peng Bo¹, Huang Jian¹, Xie Mengchun², Chen Fubin¹

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Abstract

In order to study the wind load characteristics of PV modules on the highway slopes, this paper analyzes and studies the wind load characteristics of PV modules on fill-cut highway slopes based on the wind tunnel test method, and reveals the effects of wind direction angle, slope angle, and module inclination angle on the wind load of PV modules on the slopes, and the results show that： 1） the wind load form factor of the PV modules on the slopes located in different positions are not the same, but they all change from large to small with the increase of the wind direction angle, the upper limit extreme value of the wind load form factor of PV modules under unfavorable wind direction angle appears in 0°-40°, and the lower limit extreme value appears in 110°-160°. Through the cloud diagram of the wind load form factor, it can be found that the components located in the lower part of the slope have similar the surface wind load distribution with the ground-mounted PV module, while the surface wind load form factor of the components in the upper part of the slope is more disordered; 2） the impact of changing the module tilt angle under the same slope but different locations on the components is different, the larger tilt angle increases the surface pressure of the module, but the increase of the two components is different, and for components A and B with the same inclination Angle at different slope angles, the load characteristics they exhibit are also different; 3） The frequency domain analysis of fluctuating wind pressure on the slope PV modules and ground-mounted PV modules reveals that the low-frequency spectra at the leading edge of the modules are relatively similar, and due to the influence of slope topography, the lower slope modules are affected by high-frequency pulsations more than that of the upper slope modules and the ground-mounted modules.

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PV module / highway slope / wind load characteristics / transportation and energy / wind tunnel test

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Peng Qi, Wang Yu, Peng Bo, Huang Jian, Xie Mengchun, Chen Fubin. WIND LOAD CHARACTERISTIC STUDY OF PHOTOVOLTAIC MODULES ON TYPICAL HIGHWAY SLOPE[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 481-490 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0280

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