EU PVSEC Programme Online
EU PVSEC 2021, 6 - 10 September 2021
Presentation: 4AV.2.14 In Situ Monitoring of Electrical Parameters of PV Modules under Mechanical Stress
Type: Visual
Date: Monday, 6th September 2021
17:00 - 18:30
Author(s): T. Duigou, R. Cariou, F. Chabuel, R. Couderc, G. Dennler, J. Gaume, G. Habchi, M. Lagache, A. Rafanomezantsoa, J.P. Rakotoniaina, P. Saffre, L. Tenchine
Presenter / Speaker: T. Duigou, CEA, Grenoble, France
Event: Conference Conference
Session: 4AV.2 PV Module Characterisation, Testing and Outdoor Performance
Topic: 4. 1 PV Module Design, Manufacture, Performance and Reliability
Summary / Abstract: The need of monitoring the quality of PV modules comes from the will of assessing their degradation in real outdoor conditions thanks to accelerated ageing [1]. Mechanical stresses are one of the PV modules stressors. In order to monitor the implied modes of degradation of PV modules, electroluminescence and ash testing are generally used [2][3][4]. However, these measurements are-time consuming because an accurate follow-up needs numerous handling of modules. Degradations could be evaluated more eciently and accurately than with the usual IV and EL thanks to in situ DIV monitoring [5] and lock-in thermography imaging the failures detected by the in situ monitoring. On the one hand, in situ electrical monitoring would make it possible to avoid overly regular measurements, by signalling a change in the module's electrical characteristics. On the other hand, the use of alternative methods to electroluminescence, such as lock-in thermography (LIT), would make it possible to quantify and locate these electrical failures more precisely.