Simulation of Diffuse Irradiance Impact on Energy Yield of Curved Photovoltaic Modules Using Climatic Datasets
Simulation of Diffuse Irradiance Impact on Energy Yield of Curved Photovoltaic Modules Using Climatic Datasets
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DOI：
10.1109/jphotov.2022.3143496
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发表时间：
2022-01-24
影响因子：
3
通讯作者：
Yoshita, Masahiro
中科院分区：
文献类型：
--
作者：
Tayagaki, Takeshi;Yoshita, Masahiro
曲面光伏发电（PV）因其在精心设计的车辆和建筑中的应用而受到关注。然而，在这些弯曲的光伏组件中，许多连接的具有不同入射光角度的太阳能电池之间会出现电流不匹配，导致室外条件下的能量产量（EY）降低。在本文中，使用 IEC 61853-4 中提供的代表性气候数据集计算了各种弯曲光伏模块的 EY。分析的重点是评估各向同性分布的漫射水平辐照度 (DHI) 对电流失配和所得 EY 的影响。尽管曲面模块在低纬度地区（例如赤道地区）表现出与平面模块相似的高 EY，但在高纬度地区却表现出较低的 EY。观察到 EY 的这种差异是因为模块的朝北部分被模块本身的直接法向辐照度遮挡。然而，在高纬度地区，EY 随着 DHI 的增加而增加。这一结果表明，虽然简单的串联组件在低纬度地区就足够了，但在高纬度和低DHI位置，需要更精心设计的弯曲光伏组件，例如具有独立运行组件的组件。我们的研究结果为优化不同位置的弯曲光伏组件的性能提供了指导原则。
Curved photovoltaics (PVs) have gained attention for applications in well-designed vehicles and buildings. However, in these curved PV modules, current mismatch occurs between the many connected solar cells with different incident light angles, resulting in a reduced energy yield (EY) under outdoor conditions. In this article, the EY was calculated for various curved PV modules using the representative climatic datasets available in IEC 61853-4. The analysis was focused on evaluating the impact of isotropically distributed diffuse horizontal irradiance (DHI) on the current mismatch and resulting EY. Although the curved module exhibited a high EY similar to that of a flat module at low-latitude locations, such as the equatorial region, it exhibited a reduced EY at high-latitude locations. This difference in the EYs was observed because the north-facing part of the modules was shaded against the direct normal irradiance by the module itself. However, at high-latitude locations, the EY increased with DHI. This result indicates that although a simple series-connected module is sufficient at low latitudes, more elaborately designed curved PV modules, such as modules with independently operating component modules, are required at high latitudes and low-DHI locations. Our findings provide a guiding principle for optimizing the performance of curved PV modules at various locations.