Abstract Semi-transparent photovoltaic glazing (STPVG) facade is a promising curtain wall system, which not only has the function of traditional glazing facade but also can use solar energy to generate electricity. However, STPVG is often working under building shadow, and it will make power output loss for building. In this paper, the power performance of STPVG under the influence of building shadow is studied. Firstly, a real-time building shadow model that changes with time and space is established. Then a model of STPVG under the shadow is established. An experimental test platform for STPVG was built, and the model was verified using experimental data. The simulation results agree well with the experimental results. On this basis, the model is used to simulate the annual power generation performance of the STPVG under the influence of the building eave shadow. The results show that a small eave shadow will cause a certain decrease in the power output of the STPVG system. The annual average of the irradiation reception loss rate caused by eaves shadow is 0.286%, while the average rate of decline in energy generation is 3.92%. This study provides a theoretical basis for the application and optimization of STPVG in buildings.

中文翻译：

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遮阳条件下半透明光伏玻璃幕墙性能的实验与理论研究

摘要 半透明光伏玻璃幕墙（STPVG）幕墙系统不仅具有传统玻璃幕墙的功能，还可以利用太阳能发电。但是，STPVG 经常工作在建筑物阴影下，会给建筑物造成功率输出损失。本文研究了建筑阴影影响下STPVG的功率性能。首先，建立随时间和空间变化的实时建筑阴影模型。然后建立阴影下的STPVG模型。搭建了STPVG的实验测试平台，并利用实验数据对模型进行了验证。模拟结果与实验结果吻合良好。以这个为基础，该模型用于模拟建筑物屋檐阴影影响下STPVG的年发电性能。结果表明，小的屋檐阴影会导致STPVG系统的功率输出有一定的下降。屋檐阴影造成的辐照接收损失率年平均为0.286%，而发电量的平均下降率为3.92%。该研究为STPVG在建筑中的应用和优化提供了理论依据。