METHOD AND SYSTEM FOR ESTIMATING A LOSS OF ENERGY PRODUCTION OF A PHOTOVOLTAIC MODULE

摘要

The photovoltaic module (Mi) belongs to a photovoltaic facility. The method comprises the steps of : • acquisition (E1) of a thermal image (Imi) of the defective photovoltaic module (Mi) during operation; • splitting (E2) of the thermal image acquired into various temperatures zones (Zij) and determination of the respective temperatures (Tij) relating to the various zones on the basis of the thermal image (Imi); • obtaining (E5) a reference temperature (Tref) of a reference photovoltaic module; • detection (E6), from among said temperature zones, of at least one hot zone whose temperature is greater than the reference temperature with a temperature deviation of greater than or equal to a predefined minimum value (Tmin); • calculation (E7) of an estimation of the loss of energy production of the module on the basis of the temperature deviation between the temperature of the hot zone and the reference temperature, of the surface area of the hot zone and of a thermal exchange co-efficient of the module.