Stromrichterstation für Hochspannung

摘要

A converter station for high voltage is formed of a plurality of static converters with a direct current side directed in series. Each converter is a full-wave rectifier bridge provided with a control device. An additional control device is provided with a reserve control for one of the converters, which controls two series-connected rectifier groups of the bridge with different delay angles, one greater and the other less than 90 DEG . As a result the two series rectifiers in one phase of the bridge conduct simultaneously and current is commutated at a certain frequency from the rectifier in one phase of the rectifier bridge to the rectifier in a subsequent phase of the bridge.