Design and Control of a DC Grid for Railway Stations

Abstract : With growing concerns about environmental issues like climate change, energy efficiency has become crucial. In this framework, the regeneration of the braking energy of trains into electricity is a promising source to highly increase energy efficiency. The focus of this paper is to Design and Control a Direct Current (DC) Grid integrated in urban railway station, the solution consists in recovering and storing trains braking energy into a hybrid storage system and reusing it for non-railway applications such as loads in a train station and electric vehicles and their recharging plants. To attain this goal, the main points are power management and voltage control for the DC MicroGrid, and improving the dynamic performance of the system. These are obtained by controlling the energy storage system.