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 power network (2), a DC side connected to a DC bus (10) having a first line (11) on a first potential and a second line (12) on a second potential, the second potential being lower than the first potential and a filter (16), a diode rectifier (3) connected to the AC power network (2) and adapted for connecting to the traction DC power network (4) for electrical power flow to the traction DC power network (4), and a bidirectional current and at least unidirectional voltage semiconductor switching device (13, 14) connected to the DC bus (10) and adapted for connecting to the traction DC power network (4) for allowing a uncontrolled energy flow from the DC power network (4) to the DC bus (10).
Circuit arrangement
Schaltungsanordnung
Agencement de circuit
2016-06-15
Patent
Electronic Resource
English
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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