Advance Control of a Isofotón-75W Photovoltaic Module Under Matlab-Simulink

Abstract

We study in this article the best way to transfer all the useful power of photovoltaic systems (Isofoton _75W). Knowing that on the current-voltage characteristic of the generator (which depends on the conditions of illumination, temperature, aging), there is an operating point where the power output is maximum, the optimization is to focus on this point in continuously by acting automatically on the load seen by the generator. This load adaptation is carried out using a static converter whose losses must be as low as possible and which can; moreover, provide a function for formatting an output quantity (continuous-continuous conversion). With voltage modification). We chose to use MPPT maximum power point search technology, based on the "Perturb and Observe (P & O)" algorithm, controlled by a Pulse Width Modulation (PWM) signal. The aim of this work is the study of a DC-DC converter under Matlab / Simulink, used in photovoltaic systems (Isofoton_75W), and we are more specifically interested in the BOOST converter.