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Application of Infrared Thermography in an Adequate Reusability Analysis of Photovoltaic Modules Affected by Hail (CROSBI ID 303890)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Glavaš, Hrvoje ; Žnidarec, Matej ; Šljivac, Damir ; Veić, Nikola Application of Infrared Thermography in an Adequate Reusability Analysis of Photovoltaic Modules Affected by Hail // Applied sciences (Basel), 12 (2022), 2; 1-23. doi: 10.3390/app12020745

Podaci o odgovornosti

Glavaš, Hrvoje ; Žnidarec, Matej ; Šljivac, Damir ; Veić, Nikola

engleski

Application of Infrared Thermography in an Adequate Reusability Analysis of Photovoltaic Modules Affected by Hail

Infrared thermography, in the analysis of photovoltaic (PV) power plants, is a mature technical discipline. In the event of a hailstorm that leaves the PV system without the support of the power grid (and a significant portion of the generation potential), thermography is the easiest way to determine the condition of the modules and revive the existing system with the available re- sources. This paper presents research conducted on a 30 kW part of a 420 kW PV power plant, and demonstrates the procedure for inspecting visually correct modules that have suffered from a major natural disaster. The severity of the disaster is shown by the fact that only 14% of the PV modules at the test site remained intact. Following the recommendations of the standard IEC TS 62446-3, a thermographic analysis was performed. The thermographic analysis was preceded by an analysis of the I-V curve, which was presented in detail using two characteristic modules as ex-amples. I-V curve measurements are necessary to relate the measured values of the radiation and the measured contact temperature of the module to the thermal patterns. The analysis concluded that soiled modules must be cleaned, regardless of the degree of soiling. The test results clearly indicated defective module elements that would result in a safety violation if reused. The research shows that the validity criterion defined on the basis of the analysis of the reference module can be supplemented, but can also be replaced by a statistical analysis of several modules. The comparison between the thermographic analysis and the visual inspection clearly confirmed thermography as a complementary method for testing PV-s.

PV ; hail ; thermography ; IEC 62446 ; I-V curve

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Podaci o izdanju

12 (2)

2022.

1-23

objavljeno

2076-3417

10.3390/app12020745

Povezanost rada

Elektrotehnika, Fizika, Interdisciplinarne tehničke znanosti, Računarstvo, Strojarstvo

Poveznice
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