STATCOM SYSTEM TO PROVIDE REACTIVE AND / OR ACTIVE POWER TO A POWER NETWORK.

摘要

Static compensator system (11) to provide reactive and / or active power to a power network (14), said system comprising a static compensator (11) comprising a DC capacitor (Ud) and a source converter (10) of voltage connected in parallel, said static compensator (11) being connected to an energy storage device (12), the system also comprising an elevator converter device (13) connected in series to said energy storage device (12) , wherein said elevator converter device (13) and said energy storage device (12) are connected in parallel to said DC capacitor (Ud) of said static compensator (11), and wherein said device (13 ) of the booster converter and said energy storage device (12) are connected in parallel to said voltage source converter (10) of said static compensator (11), characterized in that the dis Positive (13) of the booster converter is arranged to be supplied by means of a separate AC supply or arranged to receive power by means of a transformer (15) from AC terminals of said static compensator (11).