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基于被动辐射制冷的光伏发电效率优化方案及其监测技术研究
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Abstract:
光伏板的发电效率与运行温度密切相关。本文通过被动辐射制冷涂层改造光伏组件，降低光伏板的运行温度，提升其发电效率。经实验及预测算法验证得出，被动辐射制冷涂层对光伏组件的运行温度有较大的降低，光伏组件正面、侧面、背面及金属框架温度分别降低了约10℃、14℃、13℃及16℃。通过降低光伏组件的运行温度，光伏板发电效率得到了提升，提升幅度约为4.5%。由此可见，被动辐射制冷涂层对于提升光伏板发电效率具有一定的可行性。
The power generation efficiency of photovoltaic (PV) plates is closely related to the operating temperature. In this research, passive radiation cooling coating was used to modify PV modules, reduce the operating temperature of PV plates, and improve the power generation efficiency. After experimental method and simulation model prediction, it was found that the operating temperature of PV modules was reduced significantly by the passive radiation cooling coating. The front, side, back, and metal frame temperatures of PV modules were decreased by about 10？C, 14？C, 13？C, and 16？C, respectively. By reducing the operating temperature, the efficiency of PV plate power generation was improved by approximately 4.5%. It can be seen that the passive radiation cooling coating has certain feasibility for improving the power generation efficiency of photovoltaic plates.
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