Thermal vision analysis
Thermal vision analysis shows the temperature distribution on the PV module. This method can detect areas with power loses.
Detectable defects:
-
Resistive losses in soldered contacts and in connectors.
-
Local shunts in the structure of PV cell.
-
Defective or forward-biased bypass diode.
-
Significant differences in performance of individual PV cell within one PV module.
-
Damage of individual PV cells caused by frequent shading.
The Results of the test are the colour images, where different colours corresponding to different temperatures.