Einphasengesteuerter, umkehrbarer Wechselstrom-Gleichstrom-Wandler mit Snubber mit geringen Verlusten

Details

Veröffentlichungs-Nr.

EP2677621

Aktenzeichen

EP12305695

Anmeldetag

19. Juni 2012

Veröffentlichung

27. November 2019

Erteilung

27. November 2019

Rechtsraum

EP

IPC

B60L7/12B60L9/08H02J3/18H02M7/797

Abstract

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.

Anmelder

Firmen

ALSTOM Transport Technologies
ALSTOM Transport SA

Land

🇫🇷 Frankreich

Fachgebiete