Anläggning för överföring av elektrisk effekt med hjälp av dubbelriktat styrda tyristorer, samt förfarande för byte av effektmatningsriktning hos en sådan anläggning

摘要

A plant for transmitting electric power with a direct voltage network and at least two stations connected thereto with line commutated valves (15, 16) with bidirectionally controlled thyristors (BCT) with ability to conduct current in both directions therethrough as rectifying semiconductor components, comprises at least one cable (12) with an insulating mantle with a polymer base surrounding the conductor thereof for forming the direct voltage network interconnecting the stations. The plant has also a unit (21) adapted to control the thyristors of the valves for changing the power feeding direction between the stations through changing the current direction in said cable.