复合抛物面槽式光伏聚光器性能研究

Performance analysis of a novel trough compound parabolic concentrating photovoltaic collector

文章提出了一种复合抛物面槽式光伏聚光器，介绍了该聚光器的工作原理，利用Solidworks软件对其进行三维建模，并通过光学仿真软件对不同入射偏角、光伏组件不同安装位置时接收体表面的光线接受率和聚光效率进行计算。该课题组搭建了复合抛物面槽式光伏聚光器试验台，对该光伏聚光器的输出电功率进行了测试和对比分析。结果表明：当复合抛物面槽式光伏聚光器径向入射偏角的变化范围为O～7。时，光线接受率为99．35％。60．49％：聚光效率随轴向入射偏角的增大呈线性降低的变化趋势；光线接受率和聚光效率随光伏组件与入射光之间夹角的增大而降低；在自然天气条件下，复合抛物面槽式光伏聚光器的输出电功率约为相同测试条件下平板光伏组件的2倍。

This paper presents a novel trough compound parabolic concentrating photovoltaic （CPV） collector. The performances of CPV have been studied via both optical calculation and experiment. A 3D model of the CPV supported with Solidworks software was used to analyze the raying tracing of the double-flat-plate solar cells. The distribution of the concentrated light can be visualized. The relationship between the optical efficiency of the CPV and the incident angle, installation position was investigated. In addition to theoretical analysis, a CPV collector was constructed, and experiments for CPV collector are carried out. The results indicate that the overall ray＇s receiving rate of 99.35%-60.49% are obtained with radial incidence angles of 0-7 °. The ray＇s receiving rate and optical efficiency decreases with the increase of the angle between cell and incident light. In the outdoors experiment, the output power of the CPV is about 2 times of the fiat-plate solar cell.