Modélisation d’un système multi générateurs photovoltaïques interconnectés au réseau électrique

Abstract

Our objective in this work is: to study, model and optimize exploited power MPPT of photovoltaic system connected to grid. We also used two models of the interconnection, first is modeled as photovoltaic system connected to grid through power converters, boost DC/DC and an inverter DC/AC, the second, is a behavioural model of a photovoltaic system connected to grid, this model is presented and simulated. The photovoltaic generator and the inverter single-phase current are respectively modeled by using a mathematical model which gives the values of maximum power according to the variation of the weather conditions, and by a voltage source controlled in voltage in order to inject a sinusoidal current and to estimate or predict the energy injected monthly or annually into the network. This type of prediction is significant at the time of the feasibility study of a Photovoltaic Power station Connected to the Network.