UV Fluorescence for Defect Detection in Residential Solar Panel Systems

作者：Andrew M. Gabor, Philip J. Knodle · 年份：2021 · DOI：10.1109/pvsc43889.2021.9518884 · 被引用次数：10 · 研究领域：Photovoltaic System Optimization Techniques、Industrial Vision Systems and Defect Detection、Photovoltaic Systems and Sustainability

UV Fluorescence (UVF) is a relatively new "non-contact" method of detecting cracked cells in solar panels with potential high throughput and low cost. We report here on application of a pole-mount UV-flash camera system to the detection of defects on residential rooftops in Boulder Colorado. The majority of tested system exhibited useful UVF images, with most showing cracked cells, and a smaller percentage showing hot spot cells. Junction box heating and sealing problems and possible finger corrosion or encapsulant delamination were also seen. This data suggests that pole-mount UVF system is highly applicable and informative over a wide range of residential panel designs and ages and provides information complementary to that achieved from Electroluminescence imaging.