太阳能电池板表面灰尘擦除试验研究

Experiment Study on Removing Surface Dust of Solar Panel

荒漠地区电池板表面积灰严重影响光伏组件发电效率,因此有效擦除电池板积灰的问题已成为维护光伏电站的主要工作之一。为此,测量了GS-50非晶硅薄膜光伏组件在0、3.1、4.8、7.2、14.9、24.5g/m2不同积灰条件下的平均输出功率,设计了可调节清洁参数的灰尘清洁装置,研究了擦除速率、擦除压力、擦除次数和擦除方式等工艺参数对光伏清洁效果的影响。结果表明,不同擦除速率下光伏发电转换效率保持在4%左右;擦除压力比擦除次数的影响明显,在擦除压力为250N时连续擦除三次清洁效果达到最佳;木条刷与圆盘刷组方式的清洁效果最好。

In the desert area,the accumulated dust on solar panels＇ surface affects the efficiency of photovoltaic（PV）power generation seriously.So,it has been the most important job to clean the accumulated dust in future.The average output power of amorphous film solar panels are measured under different accumulated dust amounts,which include 0,3.1,4.8,7.2,14.9and 24.5g/m^2.The dust removal equipment is designed to clean the panel surface＇s dust.The relationship between the PV power generation efficiency and the erasing parameters,including the erase forces,erase velocities,erase methods and erase times,is studied through experiment.The results show that the PV power generation efficiency keeps in 4% or so at different erase velocities;the erase forces have larger impact on the efficiency than the erase times;the optimal cleaning effectiveness is obtained at the 250 Nerase force with three erase times,and the combination of wood strip and disk brushes has better cleaning effectiveness.