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光伏組件影響因素的風(fēng)洞試驗(yàn)及數(shù)值模擬研究

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  本文選題:風(fēng)洞試驗(yàn) 切入點(diǎn):光伏組件 出處:《長(zhǎng)安大學(xué)》2014年碩士論文 論文類型:學(xué)位論文


【摘要】:太陽(yáng)能光伏電站一般地處荒漠戈壁,地形空曠之地,而在這些空曠之地風(fēng)荷載在電池組件支架及基礎(chǔ)設(shè)計(jì)中起到控制作用,風(fēng)荷載的取值和構(gòu)架風(fēng)荷載體型系數(shù)的選取直接影響到支架及基礎(chǔ)的安全性。因此本文以風(fēng)洞試驗(yàn)為基礎(chǔ),主要研究風(fēng)向角、傾角、高度、間距、位置等因素對(duì)光伏組件支架單元風(fēng)荷載體型系數(shù)的影響規(guī)律,并利用數(shù)值模擬的方法研究光伏組件支架單元陣列的特點(diǎn)。 采用縮尺比為1/10的單塊光伏組件支架單元進(jìn)行風(fēng)場(chǎng)特性模擬試驗(yàn),量測(cè)在三種不同風(fēng)速即5m/s、10m/s、15m/s作用下,無(wú)電池板和有電池板兩種情況下三個(gè)測(cè)點(diǎn)位置處平均風(fēng)速沿高度變化的規(guī)律。 選用縮尺比為1/20的單塊光伏組件支架單元,通過(guò)改變風(fēng)向角和光伏組件支架單元模型的傾角的大小,分別研究光伏組件支架單元風(fēng)荷載體型系數(shù)隨不同風(fēng)向角和傾角的變化規(guī)律。選用相同縮尺比的兩塊電池板和三排三列的電池板分別研究模型間距和模型位置對(duì)光伏組件支架單元風(fēng)荷載體型系數(shù)的影響規(guī)律。 最后運(yùn)用數(shù)值模擬的方法研究光伏組件支架單元陣列的影響并將風(fēng)向角、傾角、位置、高度參數(shù)化,,給出應(yīng)用于光伏組件支架單元陣列中單塊電池板表面風(fēng)荷載的計(jì)算公式。
[Abstract]:Solar photovoltaic power plants are generally located in the desert Gobi, the terrain is open, and the wind load in these open areas plays a controlling role in the design of the battery module support and foundation. The value of wind load and the selection of wind load shape coefficient directly affect the safety of the support and foundation. Therefore, based on the wind tunnel test, the wind direction angle, inclination angle, height, spacing are studied in this paper. The influence of position and other factors on wind load profile coefficient of photovoltaic module support unit is studied. The characteristics of photovoltaic module support cell array are studied by numerical simulation. The wind field characteristics of a single photovoltaic module with a scale ratio of 1 / 10 were simulated and measured under the action of three different wind speeds, namely, 5 m / s 10 m / s 10 m / s / s. The variation of the mean wind speed along the height of the three measuring points in the case of no panel and no panel. By changing the wind direction angle and the angle of inclination of the model of the support unit of the photovoltaic module, a single photovoltaic module with a scale ratio of 1 / 20 is selected. The variation of wind load profile coefficient with different wind direction angle and inclination angle was studied respectively. Two panels with the same scale ratio and three panels with three rows and three rows of panels were used to study the model spacing and model position. The influence law of wind load shape coefficient of photovoltaic module support unit. Finally, the effect of wind direction angle, inclination angle, position and height on the solar cell array of photovoltaic module is studied by numerical simulation, and the calculation formula of wind load on the surface of a single panel in the array of support elements of photovoltaic module is given.
【學(xué)位授予單位】:長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TU312.1

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