e-Poster: Connect large offshore wind parks at 230 kV and higher voltage
(Room Station 1)
16 Oct 18
6:20 PM
-
6:30 PM
Tracks:
Posters, Transmission/Grid
In Europe, with the increasing size of the offshore wind parks, the voltage of the export cables has increased from 145 kV in end 2000's to 245kV nowadays. Currently, single offshore wind parks are connected to the transmission grid with 245 kV HVAC submarine export cables. In the USA, large offshore wind farms with capacity up to 800 MW are under development at distances between 50 and 100 km. For these power and distance ranges, 245 kV HVAC submarine cables can be used, but for some cases, higher voltage (300 kV and even 420 kV) could be used in order to increase the transmission capacity and to reduce the cost of the transmission system. The presentation describes the current state of the art for offshore wind export cables and HV submarine cables, for voltages up to 420 kV. The presentation is also illustrated by Case studies. All the aspects of a HV submarine cable projects are assessed, including supply, installation, protection and testing.