Design and realisation of a photovoltaic system controlled by the MPPT algorithm

This paper presents a contribution to the field of photovoltaic conversion system. An equivalent electrical circuit model of a PV module is presented with the appropriate algorithm of determination of internal parameters. An adaptation stage consisting of buck DC-DC converter is implemented between PV generators and the pure resistive load (lamp). The DC-DC converter is controlled by the development of the MPPT P&O algorithm which ensures the extraction of the maximum available power from the PV generators. The over power offered by the MPPT strategy is stocked on a lead acid battery, which requires the design of a battery regulator ensuring the well use and the health protection of the battery characteristics. The paper, shows simulation works on Matlab Simulink, conception and design of the DC-DC controller and battery regulators, on ISIS proteur. Then experimental works are made to validate the system conception.