摘要
高海拔荒漠地区光伏电池板表面上往往会积累大量灰尘,严重影响光伏发电效率。由于灰尘的成分、形貌和粒径等特性不同,导致积灰对光伏发电的影响也不同。文章检测了光伏电池板表面灰尘成分,测定观察了灰尘粒径及形貌,并根据电池板清洗现状分析荒漠地区地下水所含的阴阳离子成分;根据格尔木荒漠地区灰尘成分,给出了灰尘对电池板发电效率的影响曲线;通过灰尘粒径的测定,分析了灰尘粒径对电池板的遮挡影响和对灰尘擦除的影响。文章还分析了光伏电池板清洁用水的成分及特性,结合灰尘自身特点,探讨了往清洗用水中添加化学试剂的方案,为荒漠地区光伏电池板表面的清洁维护提供理论依据。
A large amount of dust on solar panels＂ surface affects the photovohaic （PV） power generation efficieficy in high altitude desert area. Different characteristics of dust compositions, morphologies and particle sizes,lead to different effects on the PV power generation efficiency. The compositions, diameters and morphologies of the dust on the PV solar panels＂ surface are investigated and measured in this paper. The contents of hydronium in water are analyzed according to the current situation of solar panel. The relationship between dust and PV power generation efficiency is obtained in terms of the dust at Golmud. After measuring the size of dust particle ,the effect of particle size on the shade of solar panels＂ surface is analyzed. Moreover, composition and characteristics of the groundwater used for cleaning the dust are examined. Combined with the characteristics of the dust,the chemical reagents added in the water are explored to improve the cleaning effectiveness. The experimental results could provide theoretical basis for the later maintenance of PV power station in high altitude desert area.
出处
《可再生能源》
CAS
北大核心
2015年第11期1597-1602,共6页
Renewable Energy Resources
基金
青海省科技厅项目(2012-G-Y25A-4
2014-GX-212)
青海大学中青年基金项目(2013-QGY-15)
关键词
高海拔荒漠地区
光伏电池板
灰尘特性
地下水样
化学试剂
high altitude desert area
solar panel
characteristics of dust particle
groundwater
chemical reagents
