Modelling the performance of amorphous and crystalline silicon in different typologies of building-integrated photovoltaic (BIPV) conditions
Modelling the performance of amorphous and crystalline silicon in different typologies of building-integrated photovoltaic (BIPV) conditions
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DOI：
10.1016/j.solener.2017.02.035
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发表时间：
2017-04
期刊：
影响因子：
6.7
通讯作者：
A. Virtuani;D. Strepparava
中科院分区：
文献类型：
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作者：
A. Virtuani;D. Strepparava
在这项工作中，我们使用并进一步阐述了以前提出的模型来描述日常性能比的非晶（a-Si）和晶体硅（c-Si）光伏太阳能电池组件在真实的操作条件下。对于这两种技术，该模型根据从Supsi室外测试场收集的三年数据进行了验证，这些数据用于传统的通风自由机架安装安装（朝南，45°倾斜）。在目前的工作中，我们扩大模拟相同的技术在同一地点的性能，并包括建筑一体化（BIPV）安装条件。为了简单起见，我们考虑两种极端情况：（a）朝南的立面安装（90°倾斜）和（B）完全水平的安装（0°倾斜）。然后，模块的入射角响应用于量化反射损失，这在夏季和冬季分别对于立面和水平安装非常重要。此外，与通风光伏组件相比，完全集成的光伏组件的平均工作温度在晴天条件下可达到+20 °C的偏移。该模型的主要局限性在于关注晴朗天空条件下的天数，因此可以评估每种效应对被测设备全年能源性能的显著贡献和特殊的时间阶段。
In this work we use and further elaborate a previously proposed model to describe the daily performance ratio of amorphous (a-Si) and crystalline silicon (c-Si) photovoltaic solar modules under real operating conditions. For both technologies, the model was validated against three years of data collected from the outdoor test field at Supsi for a conventional ventilated free-rack mounted installation (south-facing, 45°-tilt). In the present work, we expand the simulations to model the performance of the same technologies for the same location and to include building integrated (BIPV) installation conditions. For simplicity, we consider two extreme cases: (a) a south-facing façade installation (90°-tilt) and (b) a perfectly horizontal one (0°-tilt). The angle-of-incidence response of the modules is then used to quantify reflection losses, which are very significant in summer and winter for the façade and horizontal installation, respectively. Further, compared to ventilated ones, fully integrated PV modules exhibit average operating temperatures that can reach an offset of +20 °C in days of clear sky conditions. This offset is used to model the operating temperatures – and performance losses – of the BIPV modules.The model, whose main limitation is the focus on days of clear sky conditions, allows assessing the distinguished contributions, and peculiar time-phases, of each effect to the yearly energy performance of the devices under test.