Modelling and Simulation of photovoltaic module considering single-diode equivalent circuit model in MATLAB

This paper presents a photovoltaic (PV) cell to module simulation model using the single-diode five parameter models. The model was implemented in MATLAB software and the results have been compared with the data sheet values and characteristics of the PV module in Standard Test Conditions (STC). Parameters values were extracted using Newton Raphson's method from experimental Current (I)-Voltage (V) characteristics of Solarex MSX60 module. The results obtained are in good agreement with the experimental data provided by manufacturer. The approach can thus, be very useful for researchers or engineers to quickly and easily determine the performance of any photovoltaic module. Among these methods, in view of its quadratic convergence and enhanced accuracy, Newton Raphson's method remains attractive with the number of variables being limited to five parameters and their partial derivatives easily obtainable. In this work, we elaborate a MATLAB script file program, which uses Newton Raphson's method to compute the five parameters of the single diode model of illuminated solar cells. The results obtained by simulation show the consistency between the data and obtained the parameters given by the manufacturer, namely: short circuit current (ISC), open circuit voltage (VOC) and maximum power point (Pmpp). For instance, these parameters can be used for quality control during production or to provide insights into the operation of the devices, thereby leading to improvements in devices.