The article presents the influence of changes in the solar radiation spectrum distribution on the properties of various photovoltaic modules, with particular emphasis on the scattered component. We compared the relative efficiency of the photovoltaic modules based on various semiconductor absorbers during bright and sunny, and cloudy summer days. Additionally, we presented the impact of the module tilt angle on the magnitude of the surface incident scattered component and on the efficiency of the module. The solar spectra for various weather conditions were estimated using specialised computer programmes,such as or , and we present here the validation results for the former. The obtained results confirm the published experimental data and the conclusions drawn show the applicability of the tested modules with various absorbers for the specific photovoltaic systems. The theoretical analysis of the a-Si structures, both single-, as well as multi-junction shows better performance of these structures at low-irradiance conditions (in comparison with e.g., c-Si, CIS structures), during days characterised by a spectral distribution common for cloudy days with high air water vapour content. This type of device should show unaltered efficiency both at mid-day, as well as during the morning and late afternoon.

中文翻译：

---

太阳光谱对光伏组件效率影响的建模与分析

本文介绍了太阳辐射光谱分布的变化对各种光伏组件性能的影响，特别强调了散射分量。我们比较了基于各种半导体吸收器的光伏组件在晴天和阴天的夏季的相对效率。此外，我们还介绍了模块倾斜角对表面入射散射分量的大小以及模块效率的影响。使用专门的计算机程序（例如 或 ）估计各种天气条件下的太阳光谱，我们在此介绍前者的验证结果。获得的结果证实了已发表的实验数据，得出的结论表明具有各种吸收器的测试模块对于特定光伏系统的适用性。对单结和多结的 a-Si 结构的理论分析表明，在低辐照度条件下（与 c-Si、CIS 结构等相比），这些结构在以 a-Si 为特征的日子里具有更好的性能。光谱分布常见于空气水蒸气含量高的阴天。这种类型的设备在中午、上午和下午晚些时候都应该显示出不变的效率。