雾霾对光伏组件短路电流的影响

Effect of Haze on Short Circuit Current of Photovoltaic Module

随着装机容量的持续扩大,光伏发电作为一种新兴能源对传统能源发挥着越来越重要的补充作用。然而,近几年频繁出现的雾霾天气成为光伏发电的克星,当遭遇比较严重的雾霾天气时,光伏组件的电性能会受到显著影响。本文利用光伏组件固有的光谱响应特性,通过监测不同雾霾条件下太阳光的光谱分布,分析空气质量指数与光伏组件短路电流的影响,研究发现,在AQI <250时,短路电流随AQI的增加呈线性负增长,其相对雾霾指数为-0.29%/单位AQI。

With the continuous expansion of installed capacity, photovoltaic power generation as a new energy plays an increasingly important supplementary role to traditional energy. However, the frequent occurrence of haze weather in recent years is a big challenge of photovoltaic power generation, and the electrical performance of photovoltaic modules will be significantly affected under severe haze weather. In this paper, the influence of air quality index on short-circuit current of photovoltaic module is analyzed by monitoring the spectral distribution of solar light under different haze conditions by using the inherent spectral response characteristics of photovoltaic module. It is found that when AQI < 250, the short circuit current increases linearly and negatively with the increase of AQI, and its relative haze exponent is -0.29 %/ unit AQI.