All-weather imaging tech to detect PV module faults

The system combines software that applies a modulated electric current to the PV panels and an indium-gallium-arsenide (InGaAs) photodiode detector that takes a sequence of images of the panels. According to its creators, the proposed technique works with any lighting conditions and in all weather.Scientists at the Nanjing University of Science and Technology, in China, have developed a PV panel defect detection system that is claimed to work under any lighting conditions and in all weather. Described in the paper Defect detection system for silicon solar panels under all-day irradiation, which ...

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