n型硅双面发电光伏组件及其应用

n型硅双面发电光伏(PV)电池组件具有光致衰减小、弱光响应好、温度系数低等优势,正面和反面均具有把光能转换成电能的能力.通过研究双面发电PV组件的结构和制备技术,成功研发了高效率低成本的n型硅双面发电PV组件.与单面发电光伏组件相比,双面发电PV组件输出功率更大,从而降低其在光伏系统应用中的综合成本.对双面发电光伏组件在白石子、绿草地和沙地等三种典型环境进行测试并获得实验数据,结果表明,在白石子环境下双面发电光伏组件较单面组件的发电量增加20％,发电量增量最高;其次是沙地环境,发电量增量为8.06％;绿草地环境的发电量增量最低,发电量增量仅为4.69％.通过实验应用研究得出不同反射环境下的发电量数据,可供后续双面发电PV组件电站系统设计做参考.

n-Type Silicon Bifacial Photovoltaic Module and Its Application

The advantages of the n-type silicon bifacial photovoltaic (PV) module was lower light induced degration,better weak light response and lower temperature coefficient.Both the front and back sides of the bifacial module can convert the light energy into the electrical energy.By researching the structure and process technology of bifacial PV module,the high efficiency and low cost n-type silicon bifacial PV module was successfully developed.Compared with the monofacial PV module,the bifacial PV module outputs higher power,which reduced the comprehensive cost of it in the PV system.By testing the generating capacity of the bifacial PV module at white stone,grass and sand backgrounds separately,the accurate data are acquired at three different reflection backgrounds.The resultes show that the generating capacity of the bifacial PV module in the white stone is 20％ higher than that of the monofacial ones,and this increase is the highest.The power generation of the bifacial PV module in the sand environment is enhanced by 8.06％.The power generation of the bifacial PV module in the grass environment is enhanced by only 4.69％,which is the lowest.All the power generation data obtained through experiment application reseach in different reflected environment of the bifacial module can be used for the reference in the subsequent bifacial PV power station system design.