Characteristics of Solar Panel Stability Under Operating Conditions

The article considers the application of a two-diode physical and mathematical model in the analysis of telemetry data of solar panels using digital twins to monitor the efficiency of solar power plants. This approach made it possible to replace the temporary data of each solar panel’s operation during a month with data from seven output electrophysical parameters. This simplified data processing: one solar panel – one set of parameters per month. Analysis of telemetry data using digital twins allows using them to calculate normalized values of the output electric power at the point of maximum electricity generation for all solar panels and, based on the results, to find anomalies in their operation. Using the example of a solar power plant consisting of 272 panels, the possibility of effectively identifying abnormally operating solar panels is shown.