光伏电站阵列风荷载数值模拟研究

Numerical Simulation of Wind Loads on Photovoltaic Power Plant Array

在大型光伏电站中多数的太阳能电池板都倾斜放置,风吹过时,会在其表面产生吸力或压力,称之为风荷载.在多风地区,光伏支架阵列的构造布局中,风荷载成为作用力最大的荷载.笔者以铜川大型光伏电站为原型,以实际尺寸建立了1列10排光伏阵列的几何模型,利用Fluent6.3的计算平台,模拟了正向(0°)、正斜向(45°)、逆斜向(135°)和逆向(180°)四个风向角工况下,电池板组件表面的风压和风荷载分布情况,研究了光伏阵列的风荷载分布规律.

Solar panels are mostly tilted in large photovoltaic power plants.When the wind blows,it generates suction or pressure on its surface,which is called wind load.In windy areas,the wind load becomes the most active load because of the structure and layout of photovoltaic support arrays.This paper takes Tongchuan large-scale photovoltaic power plant as the prototype.A geometric model of one column and ten rows photovoltaic arrays has been established with an actual size.Based on Fluent 6.3 computing platform,the simulation results of four wind direction angles of 0°,45°,135°and 180°are analyzed respectively.The distribution of wind pressure and the wind load on the surface of battery panel assembly under this terrain have been obtained.The wind load distribution characteristic of photovoltaic array has been studied as well.