The invention relates to a circuit arrangement for electrical power supply between a three-phase AC power network (2) and a traction DC power network (4), comprising a bidirectional converter arrangement (8) comprising an AC side (9) connected to the AC po...

To make an energy storage device which stores power such as regenerative power, and discharges the power to a feeder or a distribution system perform effective charging/discharging. [Solving Means] A power management apparatus of an embodiment creates a sw...

The method involves setting up a voltage difference between output terminals of reversible sub-stations (20A, 20B) such that current (I) circulates on a power supply line (10) of a railway vehicle between the reversible sub-stations. An impedance value of ...

The railway system has a DC voltage catenary (20) connected to a rectifier bridge block (40) that is in turn connected to a transformer (30) joined to a three-phase AC grid (10). The device (50) has a first DC/DC voltage raising block (51) connected betwee...

The suspended line (20) is supplied by a transformer (30) and diode rectifier (40) connected in series. The anode of a further diode (60) is connected to the line, and its cathode is connected to the intermediate circuit of an inverter (5). Nominal power o...