光伏电站发电板雨水收集模拟试验研究

为有效利用光伏电站降雨资源进行农业灌溉,以云南省楚雄州元谋县天子山光伏发电站为研究对象,进行了雨水收集模拟试验研究。通过室内1∶1比例模型设置纵向单列、纵向3列布置发电板进行人工降雨模拟试验,分析当地条件下降雨强度与集雨效率的关系。结果表明:纵向单列布置与纵向3列布置得出的集雨效率相同;瞬时降雨强度与集雨效率关系为非线性关系;集雨效率在降雨峰值(1.95 mm/min)、谷值处(0.97mm/min)分别为56.31%,31.56%。根据集雨试验成果,可确定光伏发电站发电板的雨水收集量,并据此确定适宜种植的农作物,在光伏发电站发电的同时发展农业。

Test on rainwater collection from photovoltaic panel of photovoltaic power station

In order to make full use of rainfall resource of photovoltaic power station for agricultural irrigation, an indoor experiment was carried out to simulate the rainwater collection at a photovoltaic power station in Yuanmou County, Chuxiong Prefecture, Yunnan Province. Two kinds of models of 1:1 scale were designed, i.e, column layout of single panel and column layout of three panels, and the analysis on relation of rainfall collection efficiency and rainfall intensity was carried out. The results show that the rainwater collection efficiency of the both layout are the same, the relation between instantaneous rainfall intensity and rainfall collection efficiency is nonlinear; for the rainfall intensity of 1.95 0.97mm/min, the rainfall collection efficiencies at rainfall peak and valley are 56.31% and 31.56%. The test results are valuable to determining the rainfall collection amount from the panel of photovoltaic power station and based on this, the adaptable crops under the photovoltaic power station could be determined.