A Simple Method of Modeling the PV Cell from a Single Current-Voltage Curve

In this paper is presented a simple method to extract the parameters of a photovoltaic (PV) cell model using a single current-voltage curve. The experimental results for current-voltage curve are obtained from the constant illumination level of the PV cell. The used model of PV cell is the single-diode model and contained five parameters: $\mathbf{I}_{\mathbf{ph}}$ – the current generated by light in PV cell, $\mathbf{I}_{\mathbf{0}}$ – the dark saturation current of the diode, n – the ideality factor of the diode, $\mathbf{R}_{\mathbf{s}}$ – the series resistance, and $\mathbf{R}_{\mathbf{sh}}$ – the shunt resistance. The proposed method has been applied for a monocrystalline Si 6 inch PV cell. In order to validate the proposed models, the parameters were used in the Spice simulation.