Drive controller for a self-commutated converter

Details Drive controller for a self-commutated converter Drive controller for a self-commutated converter

2006-02-14

2006-02-14

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

Including automatic or integral protection means

C363S125000, C318S254100, C318S434000, C318S801000

Reexamination Certificate

active

06999326

ABSTRACT:
A drive controller for a self-commutated converter is described. The converter has two half-bridges, and the drive controller includes a corresponding control circuit for the converter valves of each half-bridge. Each control circuit can be connected via first switches to an external voltage. Each first switch is connected in parallel with a second switch, wherein the second switches are decoupled by way of decoupling diodes. The first and second switches can be alternatingly switched on and off. The switches can therefore be cyclically tested without interrupting service.

REFERENCES:
patent: 5717258 (1998-02-01), Park
patent: 6495986 (2002-12-01), Schwesig
patent: 6573681 (2003-06-01), Schwesig
patent: 6909255 (2005-06-01), Jänicke et al.
patent: 100 59 173 (2002-03-01), None

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