COMPENSATION OF REACTIVE POWER AT A SUBSEA AC TRANSMISSION CABLE HAVING AN OFF-SHORE INPUT END AND AN ON-SHORE OUTPUT END

摘要

A transmission system and a method for transmitting electrical power which has been produced by at least one off-shore wind turbine to a utility grid being located on-shore is provided. The transmission system has (a) an off-shore transformer, which is connectable to the at least one wind turbine and which is configured for changing a first AC voltage level provided by the at least one wind turbine to a second AC voltage level, (b) a subsea AC transmission cable having an off-shore input end and an on-shore output end, wherein the input end is connected to the off-shore transformer, and (c) a compensation unit for compensating at least partially a reactive power being produced within the subsea AC transmission cable, wherein the compensation unit is electrically coupled to the subsea AC transmission cable at a node being located in between the off-shore input end and the on-shore output end.

主权项

1. A transmission system for transmitting electrical power generated by at least one wind turbine being located off-shore to a utility grid being located on-shore, the transmission system comprising
an off-shore transformer, which is connectable to the at least one wind turbine and which is configured for changing a first AC voltage level provided by the at least one wind turbine to a second AC voltage level, a subsea AC transmission cable having an off-shore input end and an on-shore output end, wherein the input end is connected to the off-shore transformer, and a compensation unit for compensating at least partially a reactive power being produced within the subsea AC transmission cable, wherein the compensation unit is electrically coupled to the subsea AC transmission cable at a node being located in between the off-shore input end and the on-shore output end.