局部阴影条件下光伏电池输出特性实验研究

光伏电池在运行期间容易受到周围建筑物、树木和电线杆以及天空中的乌云等影响,导致输出特性变坏,能量输出能力降低。本文根据光伏电池的数学模型,搭建具体系统,对阴影遮盖条件下光伏电池输出特性进行了研究。实验结果表明：阴影对电压、电流影响很大且不成比例,当阴影遮盖面积超过1/2后光伏电池输出功率降到原来的1%。

Experimental Studies on Output Features of PV Cells With Partial Shading

The PV cells are easy to come down the influence of surroundings building,trees,telephone pole,dark cloud in the sky and so on in movement period,which causes output features goes bad and the ability about output of energy gets down.The paper builds concrete system,does the research of output features of PV cells with partial shading based on the mathematical model about PV cells.The experimental result indicated the shadow affect voltage and electric current seriously and differing so much as to be beyond comparison,the output power reduces to 1% with the area under shadow surpasses 1/2.