DC TRACTION SUB-STATION FOR SUPPLYING AT LEAST ONE VEHICLE

A DC traction sub-station for supplying at least one vehicle, preferentially a railway vehicle, with a direct current, including a first terminal connecting the DC traction sub-station to an alternating current electrical power grid, a second terminal connecting the DC traction sub-station to a power supply conductor in order to provide driving current to the at least one vehicle or to receive regenerative braking current from the at least one vehicle, a third terminal connected to an energy storage device, one or more first current supply chains electrically connecting the first terminal to the second terminal, wherein the first current supply chain includes a first AC/DC converter, and one or more second current supply chains electrically connecting the first terminal to the third terminal, wherein the second current supply chain includes a second AC/DC converter, and wherein a DC/DC converter electrically connects the second terminal to the third terminal.