ELECTRIC POWER DISTRIBUTION SYSTEM FOR RAIL VEHICLES USING POWER ELECTRONIC TRACTION CONVERTER BLOCKS AND A SWITCHING MODULE

摘要

1. An electric power distribution system for a rail vehicle, comprising: a switching module (12), a DC distribution bus (3) included in the direct current power transmission path, and a power electronic traction converter unit (13) for receiving AC electric power through one or more AC electric power transmission paths and configured to convert received AC electric power to electric power after a constant current that is supplied to the DC distribution bus (3), while the switching module (12) contains: - an input terminal for receiving electric power from an external power source; - retuning switches (24, 25), configured so as to direct electricity direct current from an external power source, received through the specified input terminal, to the direct current power transmission path, or direct alternating current electric power from an external electric source supply received through said input terminal to a corresponding one path from one or more transmission paths ac; and - an adaptation element (20), designed to provide filtering of alternating current and direct current received through the specified input terminal. Moreover, the switching module (12) is configured to supply direct current electricity directly to the distribution bus (3) direct current or power electronic traction converter unit (13) through an alternating current line (14),