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(1 石家莊鐵道大學(xué)大型結(jié)構(gòu)健康診斷與控制研究所， 石家莊 050043；2 河北省大型結(jié)構(gòu)健康診斷與控制實(shí)驗(yàn)室， 石家莊 050043；3 石家莊鐵道大學(xué)土木工程學(xué)院， 石家莊 050043； 4 河北省電力勘測(cè)設(shè)計(jì)研究院， 石家莊 050031)

［摘要］太陽(yáng)能光伏板在使用的過(guò)程中由于地面起伏、植被生長(zhǎng)、雪沙遷移等造成底部流體阻塞，影響氣流流動(dòng)及其表面風(fēng)荷載。采用剛性模型測(cè)壓風(fēng)洞試驗(yàn)研究了底部阻塞率對(duì)太陽(yáng)能光伏板表面風(fēng)荷載的影響。通過(guò)對(duì)比分析不同阻塞率下太陽(yáng)能光伏板表面風(fēng)壓分布、整體體型系數(shù)和風(fēng)致彎矩系數(shù)，總結(jié)了阻塞率對(duì)光伏板風(fēng)荷載的影響規(guī)律，分析了阻塞對(duì)風(fēng)荷載的影響機(jī)理。結(jié)果表明：底部阻塞會(huì)明顯增大光伏板上的最強(qiáng)風(fēng)吸力，會(huì)減弱光伏板上的最強(qiáng)風(fēng)壓力及風(fēng)致彎矩。研究成果可以為目前尚不完備的光伏板風(fēng)荷載取值提供依據(jù)。

［關(guān)鍵詞］太陽(yáng)能光伏板； 風(fēng)洞試驗(yàn)； 體型系數(shù)； 風(fēng)荷載； 底部阻塞

中圖分類號(hào)：TU311-3[HTSS],[HTH] TK519文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)02-0129-06

Study on effect of bottom flow obstruction on wind load of solar photovoltaic panels

Ma Wenyong1,2, Chai Xiaobing3, Liu Qingkuan1,2, Xing Keyong4, Liu Xiaobing1,2

(1 Structural Health Monitoring and Control Institute, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; 2 Hebei Province Key Laboratory for Health Monitoring and Control, Shijiazhuang 050043, China; 3 Civil Engineering College, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; 4 Hebei Electric Power Design & Research Institute, Shijiazhuang 050031, China)

Abstract:The space on bottom of solar photovoltaic panel is possibly to be blocked due to wavy terrain, plants, moving snow or sands and others during its service period, which affects the flow of wind and its surface wind load. The rigid model pressure wind tunnel test was used to study the effect of bottom flow obstructuion ratio on the wind load on the surface of solar photovoltaic panels. By comparing and analyzing the wind pressure distribution, overall body shape coefficient and wind-induced bending moment coefficient of solar photovoltaic panels under various bottom  flow obstruction ratio, the influence law of bottom flow obstruction ratio on wind load of photovoltaic panels was summarized, and the influence mechanism of obstruct on wind loads was analyzed. The results show that the bottom flow obstruction will significantly increase the strongest wind suction on the photovoltaic panel, which will reduce the strongest wind pressure and wind induced bending moment on the photovoltaic panel. The research results can provide a basis for the current incomplete photovoltaic panel wind load values.

Keywords:solar photovoltaic panel; wind tunnel test; shape coefficients; wind load; bottom flow obstruction

*國(guó)家自然科學(xué)基金項(xiàng)目（51378323）,河北省自然科學(xué)基金（E2017210107）,河北省高等學(xué)?？茖W(xué)技術(shù)研究項(xiàng)目（ZD2018063,QN2017355）。

作者簡(jiǎn)介：馬文勇，博士，教授，碩士生導(dǎo)師，Email: ma@stdu.edu.cn。