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Detecting Photovoltaic Module Failures in the Field During Daytime With Ultraviolet Fluorescence Module Inspection

机译:通过紫外线荧光模块检查在白天在现场检测光伏模块故障

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摘要

We present the potential of ultraviolet fluorescence imaging for the detection of function and safety failures of photovoltaic modules in the field. We apply this method to detect hotspots, mismatched cells, power-loss-inducing cracks, and we show how we use it to evaluate the crack history of a module. We present a device able to acquire fluorescence images in the field in the daytime without disconnecting the modules and with a throughput of more than 200 modules per hour for a single operator. Furthermore, we show how the technique allows for the discrimination of specific damages caused to the photovoltaic modules by sudden events such as hailstorms. We demonstrate that this method possesses an informative potential comparable to both thermography and electroluminescence together with less practical limitations.
机译:我们介绍了紫外线荧光成像在光伏模块的功能和安全故障检测领域中的潜力。我们将这种方法应用于检测热点,电池失配,引起功率损耗的裂纹,并展示如何使用它来评估模块的裂纹历史。我们提出了一种能够在白天在现场获取荧光图像的设备,而无需断开模块,并且单个操作员每小时的吞吐能力超过200个模块。此外,我们展示了该技术如何区分由突发事件(例如冰雹)对光伏模块造成的特定损坏。我们证明,该方法具有可与热成像和电致发光相媲美的信息潜力,并且具有较少的实际限制。

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