ABSTRACT
Solar photovoltaic system performance depends on environmental conditions. Solar photovoltaic panel is a power source having nonlinear internal resistance. As the intensity of light falling on the panel varies, its voltage as well as its internal resistance both varies.This paper presents a circuit-based simulation model for a PV cell in order to allow estimate the electrical behaviour of the cell with respect changes on environmental parameter of temperature and irradiance. The general model was implemented on MATLAB scrip file, and accepts irradiance as variable parameters and outputs the I-V characteristic. A particular typical solar panel was used for model evaluation, and results was compare with points taken directly from the manufacturer’s published curves and show excellent correspondence to the model.
