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A New Reduced Form for Real-Time Identification of PV Panels Operating Under Arbitrary Conditions
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Author(s): Kawtar Tifidat (Faculty of Sciences, Ibn Zohr University, Morocco), Noureddine Maouhoub (Faculty of Sciences, Ibn Zohr University, Morocco)and Abdelaaziz Benahmida (Faculty of Sciences, Ibn Zohr University, Morocco)
Copyright: 2022
Volume: 11
Issue: 2
Pages: 23
Source title:
International Journal of Energy Optimization and Engineering (IJEOE)
Editor(s)-in-Chief: Jose Marmolejo-Saucedo (National Autonomous University of Mexico), Gerhard-Wilhelm Weber (Poznań University of Technology, Poland)and Pandian Vasant (Ton Duc Thang University, Vietnam)
DOI: 10.4018/IJEOE.309415
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Abstract
In this work, an efficient solution based on the reducing forms approach is presented to extract the five parameters of the single-diode model of PV generators from their I-V curves. Thus, by reducing the number of the five unknown parameters to two unknowns, the analytical expression of the current based on the LambertW function will then depend only on the ideality factor and the series resistance, as the two unknowns to predict numerically using the non-linear least square technique. The three other parameters are calculated as functions of the two predicted parameters using a linear system of three equations. Two sets of experiments are used for the validation of the proposed approach, which first showed its rapidity and high accuracy compared to the best approaches from the literature. Then, the method was applied for the real-time identification of four PV modules operating outdoors during one reference day at Cocoa (Florida).
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