MODELING AND OUTDOOR CHARACTERIZATION OF TWO THIN-FILM PHOTOVOLTAIC MODULES: A CASE STUDY OF A-SI AND CIGS MODULES IN A SEMI-ARID CLIMATE ZONE
DOI:
https://doi.org/10.11113/aej.v15.22708Keywords:
Photovoltaics, Thin-film solar modules, Five-parameter model, Outdoor characterization.Abstract
Reliable modeling of photovoltaic (PV) module performance under field conditions is important for optimizing system design. This study evaluates two promising thin-film technologies, an amorphous silicon (a-Si) 5W module and copper indium gallium diselenide (CIGS) 7W module, under Baghdad’s semi-arid climate over six months. Outdoor current-voltage and power-voltage curves were measured at irradiation levels of 500-1000 W/m2 and module temperatures of 25-50°C. A validated five-parameter model was used to simulate module performance. At 1000 W/m2 irradiation and 25°C, measurements showed maximum power outputs of 4.05W and 7.11W for the a-Si and CIGS modules respectively. The model predicted these values within 5% (3.9W) and 4% (7.37W). Model errors were below 10% for all test conditions. Specifically, at 500 W/m2 and 50°C, measured powers were 1.75W (a-Si) and 3.11W (CIGS), while modeled outputs were 1.8W and 3.07W respectively. This analysis provides a comprehensive long-term experimental dataset and accurate modeling of these thin-film technologies under real Middle Eastern operating conditions. It can aid optimization of PV systems based on these promising thin-film technologies
References
Namuq SA, Mahdi JM. 2024. Boosting thermal regulation of phase change materials in photovoltaic-thermal systems through solid and porous fins. International Journal of Renewable Energy Development. 13:12.
Xiao W. 2017. Photovoltaic power system: modeling, design, and control. John Wiley & Sons.
Choubey P, Oudhia A, Dewangan R. 2012. A review: Solar cell current scenario and future trends. Recent Research in Science and Technology. 4.
Taqi Al-Najjar HM, Mahdi JM, Alsharifi T, Homod RZ, Talebizadehsardari P, Keshmiri A. 2024. Thermodynamic Modeling and Performance Analysis of Photovoltaic-Thermal Collectors Integrated with Phase Change Materials: Comprehensive Energy and Exergy Analysis. Results in Engineering. 102277.
Virtuani A, Pavanello D, Friesen G. 2010 Overview of temperature coefficients of different thin film photovoltaic technologies. 25th European photovoltaic solar energy conference and exhibition/5th World conference on photovoltaic energy conversion. 3: 83
Sethi V, Sumathy K, Yuvarajan S, Pal D. 2012. Mathematical model for computing maximum power output of a PV solar module and experimental validation. Journal of fundamentals of renewable energy and applications. 2: 1-5.
Spataru S, Sera D, Kerekes T, Teodorescu R, Cotfas PA, Cotfas DT. 2014; Experiment based teaching of solar cell operation and characterization using the SolarLab platform. 7th International Workshop on Teaching in Photovoltaics: Czech Technical University in Prague, Faculty of Electrical Engineering.
Dash P, Gupta N. 2015. Effect of temperature on power output from different commercially available photovoltaic modules. International Journal of Engineering Research and Applications. 5:148-51.
Katee NS, Abdullah OI, Hashim ET. 2021. Extracting four solar model electrical parameters of mono-crystalline silicon (mc-Si) and thin film (CIGS) solar modules using different methods. Journal of Engineering. 27: 16-32.
Kadia NJ, Hashim ET, Abdullah OI. 2022; Performance Of Different Photovoltaic Technologies For Amorphous Silicon (A-Si) And Copper Indium Gallium Di-Selenide (CIGS) Photovoltaic Modules. Journal of engineering and sustainable development. 26: 95-105.
Dawood AH. 2024. Monocrystalline Solar Module Parameters Extraction Using Lambert W Function, MSc Thesis: University of Baghdad
Villalva MG, Gazoli JR, Ruppert Filho E. 2009Modeling and circuit-based simulation of photovoltaic arrays. 2009 Brazilian Power Electronics Conference: IEEE. 1244-54.
Brano VL, Orioli A, Ciulla G, Di Gangi A. 2010; An improved five-parameter model for photovoltaic modules. Solar Energy Materials and Solar Cells. 94: 1358-70.
Ma CCY, Iqbal M. 1984 Statistical comparison of solar radiation correlations Monthly average global and diffuse radiation on horizontal surfaces. Solar Energy. 33: 143-8.
