SISTEMA PER LA CARICA DI VEICOLI ELETTRICI

The present invention concerns a modular multilevel power converter architecture for DC ultra-fast charging station of road electric vehicles (EV) with the integration of distributed energy storage systems, which work as energy buffer between the grid and the electric vehicle in recharge. This topology is developed in order to reduce power requirements from the grid during the ultra-fast recharging phase. This is achieved by interfacing the main AC grid (low or medium voltage) and Electric vehicles by means N-sub-module. Each sub-module is composed by more independent cascade Ac/Dc and DC/DC power converters integrated on one single board. The choice of number converters to be implemented on single board depends on of electrical source and storage to be inter-connected. The control strategies are implemented on single board.