This converter has entrance terminals connected to a secondary of a transformer and output terminals connected to a DC motor of a railway vehicle. It comprises: - a main bridge having a first pair of terminals connected to the entrance terminals and a second pair of terminals connected to the output terminals, each branch comprising a controlled power semiconductor device (Ti) in series with an uncontrolled power semiconductor electronic device (Di); - a snubber bridge comprising a first pair of terminals connected to the entrance terminal and a second pair of terminals connected together by a capacitor (Ks), each branch comprising a controlled power semiconductor device (Tsi), said controlled power semiconductor devices are switched on or off by a control unit so that the capacitor stores energy from the secondary and releases it to the motor at the end of the conductive period in traction mode or to the secondary at the beginning of the conductive period in a regenerative braking mode.
AC-DC single phase controlled reversible converter with low loss snubber
Einphasengesteuerter, umkehrbarer Wechselstrom-Gleichstrom-Wandler mit Snubber mit geringen Verlusten
Convertisseur CA-CC réversible à contrôle de phase simple avec circuit d'amortisseur à faibles pertes
2019-11-27
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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 |
Soft‐Switching Interleaved PFC Converter with Lossless Snubber
Online Contents | 2017
|A Snubber Configuration for Modified Bridge Converter
Online Contents | 2006
|