Degradation and performance analysis of a monocrystalline PV system without EVA encapsulating in semi-arid climate

Heliyon

Ahmed Alami Merrouni¹  Abdellatif Bouaichi²  Houssain Zitouni³  Messaoudi Choukri⁴  Badr Ikken⁵  Abdellatif Ghennioui⁶  Mohammadi Benhmida⁶  Mohammed Regragui⁶  Charaf Hajjaj⁷ 

[1] Corresponding author.;Institut de Recherche en Energie Solaire et Energies Nouvelles (IRESEN), Green Energy Park, Benguerir, Morocco;Laboratory of Electronics, Instrumentation and Energetic, Chouaïb Doukkali University, El Jadida, Morocco;MANAPSE Faculty of Sciences, Mohammed V University, Rabat, Morocco;OATE Faculty of Sciences and Techniques, Errachidia, Morocco;Institut de Recherche en Energie Solaire et Energies Nouvelles (IRESEN), Green Energy Park, Benguerir, Morocco;Laboratory of Applied Sciences for the Environment and Sustainable Development, Higher School of Technology of Essaouira, Cadi Ayyad University, BP.383, Essaouira, Morocco;

关键词: Electrical engineering;    Energy;    Photovoltaic;    Degradation;    Electrical performances;    Electroluminescence;   

DOI  :  

来源: DOAJ

【 摘 要 】

The objective of the current paper is to evaluate the performances drop of a photovoltaic system composed of a new PV module conception without EVA encapsulation. After three years of operation under harsh atmospheric condition at Green Energy Park research facility, in the mid-south of Morocco, the system shows an energy drop around 1.8kWhe in one of its strings. For this reason, an inspection (in-situ and at the lab level) to evaluate and detect the source of this energy drop has been done using the IV-Curve, IR thermal and Electroluminescence. Results show that the Performance Ratio (PR) of the affected string reaches 13%. Besides, two modules from this last one showed a degradation rate (Rd) greater than 4.12 %. It has been found that the main cause of this energy drop is due to the presence of breakages and crack at the modules cells. Those deceases are caused by a bad manual cleaning, as well as, for the nature of the modules, without EVA protection against the mechanical shocks.

【 授权许可】

Unknown