In this paper, the wind load characteristics of single vertical row photovoltaic arrays and the influence of wind direction and inclination angle are systematically studied using numerical method. The results show that under the crosswind, the wind load coefficient of the photovoltaic modules on the windward side is the largest. The drag coefficient, lift coefficient and overturning moment coefficient of the photovoltaic modules increase when the inclination angle becomes larger. These coefficients rapidly change when the inclination angle is less than 20°, and then turn to be constant after the inclination angle is above 20°. The shielding effect is very obvious for the PV arrays. The windward photovoltaic modules reduce the incoming wind speed of the leeward side modules, therefore, the wind load on the photovoltaic module located in the downstream area is obviously lower than those in windward. In addition, the shielding effect is more obvious when the inclination angle is larger.
Key words
photovoltaic system /
gust loads /
computational aerodynamics /
wind direction /
inclination angle
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] ABIOLA-OGEDENGBE A, HANGAN H, SIDDIQUI K.Experimental investigation of wind effects on a standalone photovoltaic (PV) module[J]. Renewable energy, 2015, 78: 657-665.
[2] JUBAYER C M, HANGAN H.Numerical simulation of wind effects on a stand-alone ground mounted photovoltaic (PV) system[J]. Journal of wind engineering and industrial aerodynamics, 2014, 134: 56-64.
[3] SHADEMAN M, BARRON R M, BALACHANDAR R, et al.Numerical simulation of wind loading on ground-mounted solar panels at different flow configurations[J]. Canadian journal of civil engineering, 2014, 41(8): 728-738.
[4] 姜涛, 牛斌. 考虑风向角的地面光伏阵列风压折减特性研究[J]. 太阳能, 2016(3): 48-52.
JIANG T, NIU B.Study on wind pressure reduction characteristics of ground photovoltaic array considering wind direction angle[J]. Solar energy, 2016(3): 48-52.
[5] AGARWAL A, IRTAZA H, ZAMEEL A.Numerical study of lift and drag coefficients on a ground-mounted photo-voltaic solar panel[J]. Materials today: proceedings, 2017, 4(9): 9822-9827.
[6] JUBAYER C M, HANGAN H.A numerical approach to the investigation of wind loading on an array of ground mounted solar photovoltaic (PV) panels[J]. Journal of wind engineering and industrial aerodynamics, 2016, 153: 60-70.
[7] GB 50797—2012, 光伏发电站设计规范[S]B 50797—2012, 光伏发电站设计规范[S]. 北京: 中国计划出版社, 2012.
GB 50797—2012, Code for design of photovoltaic power station[S].
[8] 李晓娜. 太阳能光伏支架风荷载体型系数研究[D]. 石家庄: 石家庄铁道大学, 2015.
LI X N.Study on wind load of solar photovoltaic bracket[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2015.
[9] 马文勇, 柴晓兵, 马成成. 柔性支撑光伏组件风荷载影响因素试验研究[J]. 太阳能学报, 2021, 42(11): 10-18.
MA W Y, CHAI X B, MA C C.Experimental study on wind load influencing factors of flexible support photovoltaic modules[J]. Acta energiae solaris sinica, 2021, 42(11): 10-18.
[10] 马文勇, 马成成, 王彩玉, 等. 光伏阵列风荷载干扰效应风洞试验研究[J]. 实验流体力学, 2021, 35(4): 19-25.
MA W Y, MA C C, WANG C Y, et al.Wind tunnel experimental study on the wind load interference effect of solar panel arrays[J]. Journal of experiments in fluid mechanics, 2021, 35(4): 19-25.
[11] 柴晓兵. 柔性太阳能光伏支架风荷载取值研究[D]. 石家庄: 石家庄铁道大学, 2020.
CHAI X B.Research on wind loads on flexible solar photovoltaic support system[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2020.
[12] 马成成. 太阳能光伏板风荷载特性与风致响应研究[D]. 石家庄: 石家庄铁道大学, 2021.
MA C C.Study on wind load characteristics and wind-induced response of solar photovoltaic panels[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2021.
PDF(2406 KB)
