Sistema de Gerenciamento de Energia para Eletropostos, via Modelo Médio, com Sistema Fotovoltaico e Acumulação e Função Otimizada Integrada

Abstract

Considering the exponential growth of Electric Vehicles (EVs) in the global landscape and the continuous advancements in power electronics technology, new concepts have emerged to integrate these vehicles with conventional electrical systems. One such concept is Vehicle-toGrid (V2G), wherein EVs, besides functioning as loads for battery charging, can also supply energy to the electrical grid. This functionality is primarily realized in configurations such as microgrids. In this context, the present study aims to develop a bidirectional DC-AC converter for energy management within an integrated system, utilizing the MATLAB/Simulink simulation environment with average-value modeling. Classical control strategies, such as the proportionalintegral (PI) controller, were implemented for system control. Additionally, the study includes the optimization of a cost function that considers multiple energy sources—solar, stationary storage, and the electrical grid—to efficiently manage system operation. The conducted analysis evaluates the system's performance under different cost function configurations, highlighting its impact on the operational parameters of the microgrid and the integration of its components.