光伏组件影响因素的风洞试验及数值模拟研究

发布时间：2018-03-22 23:02

本文选题：风洞试验　切入点：光伏组件　出处：《长安大学》2014年硕士论文　论文类型：学位论文

【摘要】：太阳能光伏电站一般地处荒漠戈壁，地形空旷之地，而在这些空旷之地风荷载在电池组件支架及基础设计中起到控制作用，风荷载的取值和构架风荷载体型系数的选取直接影响到支架及基础的安全性。因此本文以风洞试验为基础，主要研究风向角、倾角、高度、间距、位置等因素对光伏组件支架单元风荷载体型系数的影响规律，并利用数值模拟的方法研究光伏组件支架单元阵列的特点。采用缩尺比为1/10的单块光伏组件支架单元进行风场特性模拟试验，量测在三种不同风速即5m/s、10m/s、15m/s作用下，无电池板和有电池板两种情况下三个测点位置处平均风速沿高度变化的规律。选用缩尺比为1/20的单块光伏组件支架单元，通过改变风向角和光伏组件支架单元模型的倾角的大小，分别研究光伏组件支架单元风荷载体型系数随不同风向角和倾角的变化规律。选用相同缩尺比的两块电池板和三排三列的电池板分别研究模型间距和模型位置对光伏组件支架单元风荷载体型系数的影响规律。最后运用数值模拟的方法研究光伏组件支架单元阵列的影响并将风向角、倾角、位置、高度参数化，，给出应用于光伏组件支架单元阵列中单块电池板表面风荷载的计算公式。
[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.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU312.1

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