Hajjaj Charaf, Bouaichi Abdellatif, Zitouni Houssain, Alami Merrouni Ahmed, Ghennioui Abdellatif, Ikken Badr, Benhmida Mohammadi, Choukri Messaoudi, Regragui Mohammed
Laboratory of Applied Sciences for the Environment and Sustainable Development, Higher School of Technology of Essaouira, Cadi Ayyad University, BP.383, Essaouira, Morocco.
Institut de Recherche en Energie Solaire et Energies Nouvelles (IRESEN), Green Energy Park, Benguerir, Morocco.
Heliyon. 2020 Jun 7;6(6):e04079. doi: 10.1016/j.heliyon.2020.e04079. eCollection 2020 Jun.
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.
本文的目的是评估一个由无EVA封装的新型光伏组件概念组成的光伏系统的性能下降情况。在摩洛哥中南部的绿色能源公园研究设施中，经过三年在恶劣大气条件下的运行，该系统的其中一串出现了约1.8kWhe的能量下降。因此，已使用IV曲线、红外热成像和电致发光进行了检查（现场和实验室层面），以评估和检测这种能量下降的源头。结果表明，受影响串的性能比（PR）达到13%。此外，该串中的两个组件显示出大于4.12%的退化率（Rd）。已发现这种能量下降的主要原因是组件电池存在破损和裂缝。这些损坏是由不良的人工清洁以及组件本身无EVA抗机械冲击保护的性质导致的。
