Contribution à la Commande du Flux d’Energie dans les Smart Grids

Abstract

The overall objective of this work is to contribute to the treatment of two essential functions among the several associated with a smart grid which are: the control of the energy flow from a hybrid renewable energy system (wind/fuel-cell) interconnected to the grid, the purpose is to reduce the energy consumption provided by the latter by sharing the required power of a common load. At the same time, the improvement of the energy quality using a shunt active filter serves to inject the harmonic currents and the reactive power consumed by the connected non-linear load simultaneously. Simulations under Matlab/Simulink show that the active filter and the electrical network succeed to share the energy demand of the loads connected to the point of common coupling either in the case of a wind system only or in the case of a hybrid system (wind/fuel-cell). The results also show the efficiency of the techniques used to control the two sources composing the hybrid system in order to guarantee a continuous injection of the active power, and the efficiency of the proposed predictive current control to compensate the reactive power, attenuate the harmonics of the grid current