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Global Journal of Physical Chemistry. Volume 2, Issue 2 (2011) pp. 236-240
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Research Article
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Free Article
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Extraction of physical parameters of solar cell model with double exponential from illuminated I-V experimental curve
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S. Yadir, S. Assal, M. Sidki, M. Khaidar, M. Benhmida, O. Aomari, A. Malaoui, E. Bendada, M. Mabrouki
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Département de Physique, Université Chouaïb Doukkali, B.P 20, El Jadida, Morocco
Laboratoire de Génie industriel, Université Sultan Moulay Slimane, Béni Mellal, Morocco
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Abstract |
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In this paper, we present a new method for extracting physical parameters of the illuminated solar cell model. The equivalent circuit includes two diodes with two saturation currents I01, I02, a current generator Iph, a series resistance RS and a conductance GP. A one variable nonlinear equation being easier to manage in an optimization program, we determine experimentally the value of RS, we define a new variable X = V – RSI, and we fit the experimental characteristics using a Mathematica code. This method is first compared to the so-called five-point method. The obtained results are then compared to those given by three extraction methods applied to solar cell model represented by an equivalent circuit containing a single diode. We find that the best agreement with the experimental characteristic is obtained with the two diodes model. In this study, the experimental measurements were made with a commercial Conrad solar cell.
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Keywords |
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Solar cell; I–V characteristics; Two diodes model; Single diode model
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