Advanced analysis of backsheet failures from 26 power plants
| Autor: | Jochen Markert, Paul Gebhardt, Sandra Kotterer, Djamel Eddine Mansour, Daniel Philipp |
|---|---|
| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
pv modules
Renewable Energy Sustainability and the Environment Computer science Photovoltaic system Scanning Acoustic Microscopy insulation failure analysis TJ807-830 Condensed Matter Physics Renewable energy sources Electronic Optical and Magnetic Materials Reliability engineering Power (physics) backsheet degradation Reliability (semiconductor) Electrical and Electronic Engineering scanning acoustic microscopy |
| Zdroj: | EPJ Photovoltaics, Vol 12, p 7 (2021) |
| ISSN: | 2105-0716 |
| Popis: | Backsheet degradation is a known reliability issue affecting field-exposed photovoltaic (PV) modules power plants. In this work, we present lessons learned during the last three years, examining modules from 26 power plants in the TestLab PV Modules at Fraunhofer ISE. The basis is a description of the currently observed backsheets and associated degradation features as for example backsheet chalking, cracks in different layers and chemical changes in composition. Furthermore, we lay out analytical methods for initial and more detailed analysis of the failures and module materials. For example, a method designated as “flashlight test” has been found to provide a quick and straightforward method to identify damaged polypropylene (PP) layers within backsheets. Furthermore, scanning acoustic microscopy (SAM) and a comparison of different variants of FTIR spectroscopy are presented. |
| Databáze: | OpenAIRE |
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