Direct Power Control Approach for a Grid-Connected Photovoltaic Power System

This paper describes the study of an electrical system composed of a photovoltaic generator connected to the electrical network. To improve the quality of energy, the Direct Power Control (DPC) technique is used to control the active power produced by the photovoltaic generator and injected into the electrical network. Thus, the compensation and the elimination of the harmonic currents present on the network given by a non-linear load. This system consists of a photovoltaic generator as the main renewable source, connected to a DC-DC converter controlled by the MPPT (Maximum Power Point Tracking) technique. The connection to the electrical network is ensured by a DC-AC converter. The simulation of the developed system under the Matlab environment showed the robustness of the proposed algorithm.