光伏积雪层自然融化过程接触面温度仿真研究

Simulation Study on Contact Surface Temperature During Natural Melting of Photovoltaic Snow Layer

冰雪附着对于寒冷地区光伏组件的正常运行影响极大,可使光伏电站发电量大幅降低。目前除采用人工清扫外,光伏电站多任由雪层自然融化脱落,但目前对于光伏积雪自然融化过程的研究相对缺乏。为此,本研究建立了光伏组件积雪升温数值模型,仿真分析了光伏组件积雪升温过程中,辐射强度、积雪密度、积雪厚度对积雪层与光伏组件接触面的温度变化影响。

Ice and snow adhesion has a great impact on the normal operation of photovoltaic modules in cold regions,which can significantly reduce the power generation of photovoltaic power stations.At present,in addition to manual cleaning,most photovoltaic power stations allow the snow layer to melt and fall off naturally,but at present,there is relatively lack of research on the natural melting process of photovoltaic snow.Therefore,this research establishes a numerical model of PV module snow temperature rise,and simulates and analyzes the influence of radiation intensity,snow density,and snow thickness on the temperature change of the contact surface between the snow layer and PV module during the process of PV module snow temperature rise.