Hysteresis Current Control & MPPT Approach Applied to a Grid — Connected Solar PV System

Abstract

This paper discusses two control strategies applied to a grid-connected solar PV system. Taking into account that the proposed conversion chain consists of a photovoltaic generator, an adaptation stage composed of a boost dc/dc converter associated in series with a three phase dc/ac converter and the grid. In particular, the maximum power point tracking (MPPT) approach based on P&O is devoted to the boost converter. However, the hysteresis current control is dedicated to the three phase dc/ac converter. Consequently, so as to achieve a feasibility of these two techniques, the author resorted to the Matlab/Simulink environment to carried out the necessary simulations. In other hand, the experimental results have been carried out with help a Dspace card accompanied with the conversion chain, PV module and the grid.