提出一种双面光伏组件背面辐照度工程化计算方法,该方法根据阵列几何参数及水平辐照度,以简化二维的视角因子为基础,首先利用分段法得出各段地面接受的辐照度并综合考虑直射、散射、地面反射、组件正面反射,进而得到电池片级的背面辐照度。该方法改善了国内仿真软件在双面组件背面辐照度计算中精度不足的问题,将仿真结果与PVsyst及System Advisor Model（SAM）分析比较,结果表明该方法具有较高的计算精度,可为双面光伏组件工程化应用提供重要参考。
Abstract
This paper proposes an engineering calculation method for the rear-side irradiance of bifacial photovoltaic （PV） modules. Based on simplified two-dimensional view factors, the method considers array geometric parameters and horizontal irradiance. It uses a segmentation approach to determine the irradiance received by different ground segments and accounts for direct, diffuse, ground-reflected, and front-side reflected irradiance, ultimately obtaining cell-level rear-side irradiance. The method addresses the insufficient accuracy in rear-side irradiance calculation of bifacial modules in domestic simulation software. Comparisons of the simulation results with PVsyst and System Advison Model （SAM） show that it achieves higher calculation accuracy and provides significant reference for the engineering application of bifacial PV modules.
关键词
太阳辐照度 /
辐照 /
太阳电池 /
双面光伏组件 /
视角系数 /
背面辐照度
Key words
solar irradiance /
irradiation /
solar cells /
bifacial photovoltaic modules /
view factor /
rear-side irradiance
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参考文献
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基金
国家重点研发计划（2022YFB4201000）
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