Quantitative Comparison of Infrared Thermography, Visual Inspection, and Electrical Analysis Techniques on Photovoltaic Modules: A Case Study

This paper compares multiple techniques to detect suboptimal conditions in the PV system. Detection of system is required achieve optimal photovoltaic (PV) systems. Therefore, maintenance managers need choose most suitable objectively. However, there a lack objective information comparing effectiveness methods. article calculates and Infrared thermography (IRT), visual inspection (VI), electrical analysis (EA) detecting soiling, partial shadows, faults experimentally. The results showed that VI was best at soiling shading with 100% effectiveness. IRT EA had an 78% 73%, respectively, three types under study. It not possible maximum detection using only one techniques, but must be combined IR or EA. research represents significant contribution by achieving comparison between for conditions, being very useful guide maintainers designers fault techniques.