Heliyon (Sep 2022)
Obtention of solar cell parameters, through convergence of iterative cycles. Part 2: Application to experimental current-voltage measurements
Abstract
In this Part 2 of this series of articles, the application of the iterative cycles CycleA and CycleB proposed in Part 1, to determine the solar cell parameters (the shunt resistance (Rsh), the series resistance (Rs), the ideality factor (n), the light current (Ilig), and the saturation current (Isat)) on experimental current voltage (IV) and current density (JV) curves, is given. Several number of measured points per voltage (PV) are attempted, from approximately PV=1measuredpointsV to PV=52measuredpointsV. In one case, the application of the iterative cycles to IV curves showing the roll-over effect is discussed, while in another case, their application to solar panels is analysed, revealing that the iterative cycles can also be used in the case of solar panels, and not only for laboratory-made solar cells, in voltage ranges larger than [0 V,1 V]. Also, cases in darkness and under illumination are evaluated. In most cases, reasonable values are obtained for Rsh, Rs, n,Isat and Ilig, which simulated properly the IV or JV curves.
