Serbian Journal of Electrical Engineering 2017 Volume 14, Issue 2, Pages: 277-299
https://doi.org/10.2298/SJEE1702277F
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Degradation and performance evaluation of PV module in desert climate conditions with estimate uncertainty in measuring
Fezzani Amor (Centre de Développement des Energies Renouvelables, CDER, Unité de Recherche Appliquée en Energies Renouvelables, URAER, Ghardaïa, Algeria)
Mahammed Idriss Hadj (Centre de Développement des Energies Renouvelables, CDER, Unité de Recherche Appliquée en Energies Renouvelables, URAER, Ghardaïa, Algeria)
Said Drid (University of Batna, LSPIE, Laboratory, Electrical Engineering Department, Batna, Algeria)
Zaghba Layachi (Centre de Développement des Energies Renouvelables, CDER, Unité de Recherche Appliquée en Energies Renouvelables, URAER, Ghardaïa, Algeria)
Bouchakour Abdelhak (Centre de Développement des Energies Renouvelables, CDER, Unité de Recherche Appliquée en Energies Renouvelables, URAER, Ghardaïa, Algeria)
Benbitour Messaouda (Centre de Développement des Energies Renouvelables, CDER, Unité de Recherche Appliquée en Energies Renouvelables, URAER, Ghardaïa, Algeria)
Oudjana Samir Hamid (Centre de Développement des Energies Renouvelables, CDER, Unité de Recherche Appliquée en Energies Renouvelables, URAER, Ghardaïa, Algeria)
The performance of photovoltaic (PV) module is affected by outdoor
conditions. Outdoor testing consists installing a module, and collecting
electrical performance data and climatic data over a certain period of time.
It can also include the study of long-term performance under real work
conditions. Tests are operated in URAER located in desert region of Ghardaïa
(Algeria) characterized by high irradiation and temperature levels. The
degradation of PV module with temperature and time exposure to sunlight
contributes significantly to the final output from the module, as the output
reduces each year. This paper presents a comparative study of different
methods to evaluate the degradation of PV module after a long term exposure
of more than 12 years in desert region and calculates uncertainties in
measuring. Firstly, this evaluation uses three methods: Visual inspection,
data given by Solmetric PVA-600 Analyzer translated at Standard Test
Condition (STC) and based on the investigation results of the translation
equations as ICE 60891. Secondly, the degradation rates calculated for all
methods. Finally, a comparison between a degradation rates given by Solmetric
PVA-600 analyzer, calculated by simulation model and calculated by two
methods (ICE 60891 procedures 1, 2). We achieved a detailed uncertainty study
in order to improve the procedure and measurement instrument.
Keywords: photovoltaic module, translation, solmetric PVA-600 analyzer, visual inspection, degradation rate, uncertainty analysis