MODELLING OF THE PI-SHAPE LOW CONCENTRATING PHOTOVOLTAIC SOLAR CELLS
Kapparova A. Orynbassar S. Dosymbetova G. Almen D. Yershov E. Saymbetov A. Nurgaliyev M. Kuttybay N. Algazin N.
2025International Islamic University Malaysia-IIUM
IIUM Engineering Journal
2025#26Issue 281 - 95 pp.
One of the cheapest ways to improve photovoltaic (PV) systems is to create LCPV systems with polycrystalline silicon solar cells, which require less cost and have high optical efficiency. Additional reflective mirrors were added to improve the optical efficiency of the low concentrating photovoltaic (LCPV) system based on a Fresnel lens. Pi-shaped LCPV cells were obtained and compared with an ordinary LCPV based on a Fresnel lens. The proposed LCPV shows high optical efficiency even at 50 mm of cell-lens distance, while the ordinary LCPV presents a maximum of 30% of optical efficiency. The concentration ratio of 8 suns can be achieved at 150 mm of cell-lens distance at the range ±20° of the incidence angle. When the cell-lens distance is 100 mm or 125 mm, the optical efficiency is more than 80%, and the concentration ratio (CR) is more than 2 suns at the range of incidence angle ±25°. The proposed LCPV design helps to work the system at ±25° without the help of a solar tracking system. Hence, when developing the LCPV system, increasing the acceptance angle might reduce the work of solar tracking systems and the tracking errors. Good irradiance uniformity can be achieved, and the acceptance angle can be increased.
Concentration ratio , Fresnel lens , Incidence angle , LCPV , Optical efficiency
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Faculty of Physics and Technology, Al-Farabi Kazakh National University, 71 Al-Farabi, Almaty, 050040, Kazakhstan
Faculty of Physics and Technology
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