Design, Simulation and Testing of a Fast Recharge System for Public Transportation System

Electrification and fast recharge of buses for public transportation in urban areas involve a high reliability of installed storage and recharge systems. Performed mission profiles stress the system with a relatively high mileage and repeated acceleration and braking cycles. Authors have simulated and designed different storage and recharge technologies that have been installed and tested on a fleet of revamped electric minibus. In this work, attention is focused on design and simulation of a bus equipped with high-power lithium batteries. Proposed storage is recharged by a fast station fed by a flywheel system. In this work authors describe the proposed solution and its advantages. The description of the whole activity is performed with a particular attention to implementation and to experimental results of activities performed at ENEA laboratories of Roma Casaccia (Italy).