The smart grid combines electrical infrastructure with various digital technologies to analyze and ensure fast and bi-directional communication between the different components of the networks and the production, storage and consumption systems to harmonize management.The increasing complexity of smart grids requires a well detailed study to understand their functioning and to facilitate studies for their development. Therefore, a precise model is needed describing the main actors will enhance this research and will serve to find solutions to maximize the efficiency of these systems on the one hand and to study their supervision on the other hand.