Modelling and simulation of Perturb and Observe algorithm on solar PV system using different converters in MATLAB/SIMULINK

This paper deals with implementation of Perturb and Observe algorithm on a Photovoltaic System using different converters in MATLAB/SIMULINK. The model of Photovoltaic System is based on mathematical equations. The Perturb and observe algorithm is the Maximum Point Tracking Technique (MPPT) which applied on the developed Photovoltaic system in order to operate it at its maximum power point. The Perturb and Observe algorithm controls the duty ratio of converters for varying the load according to the maximum power point tracking. The converters that are used in this paper are DC-DC buck and DC-DC boost converters. Hence the DC voltage generated by the Photovoltaic System can be increased or decreased accordingly using the appropriate converter.