Abstract Modeling radiative transfer on a dusty photovoltaic (PV) module is a complicated problem. In this work, an improved optical light pathway model was established based on a three-layer system (dust particles–cover glass–solar cell); this system models radiative transfer by considering absorption, reflection, and transmission. Transmittance and reflectance formulae based on the light transmission and reflection pathway were obtained. Optical experiments were conducted for incident light with a spectral range of 0.30–0.7 μm to verify the improved model. The results show that when the thickness of the particle layer was larger than the sum of the minimum and maximum diameters, the theoretical spectral transmittance and reflectance agree well with the experimental data. The relative errors of spectrum transmittance and reflectance were 1.17–16.79% and 4.17–11.68%, respectively. Spectral transmittance through the composite layers was very low, and the dust particle composition and layer thickness had strong inhibiting effects on the transmission of incident light.

中文翻译：

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含尘光伏组件光传输反射特性的理论模型

摘要 对多尘光伏 (PV) 模块上的辐射传输建模是一个复杂的问题。在这项工作中，基于三层系统（灰尘颗粒-盖玻片-太阳能电池）建立了改进的光路模型；该系统通过考虑吸收、反射和透射来模拟辐射传输。得到了基于光透射和反射路径的透射率和反射率公式。对光谱范围为 0.30-0.7 μm 的入射光进行了光学实验，以验证改进的模型。结果表明，当颗粒层厚度大于最小直径和最大直径之和时，理论光谱透射率和反射率与实验数据吻合较好。光谱透射率和反射率的相对误差为1.17-16。分别为 79% 和 4.17-11.68%。通过复合层的光谱透射率非常低，尘埃颗粒成分和层厚对入射光的透射有很强的抑制作用。