Abstract
The major part of the coming wind farms in Denmark will be placed
offshore. If the location is near a grid with a high short circuit
level the power can be transmitted as AC.If the wind farm is far
away from the grid and the grid perhaps has a low short circuit
level, the best solution for transmitting the power can be by DC.
At the moment it is possible to build self-commutating
DC/AC-inverters up to about 150 kV. This paper will show a concept
to a solution for a wind farm and a transmission system based on
synchronous generators or a powerformer® with a rated voltage of
50 kV. The AC power will be rectified and boosted to a fixed DC
voltage (e.g. 100 kV). The speed of the generator will be
variable, depending of the wind but also controlled with the
duty-cycle of the booster. In that way all wind turbines can be
connected to the same DC bus and the cable to the inverter station
connected to the AC grid.A simple comparison between this solution
and a HVDC Light solution with induction generators will be done,
as well as a few simulations showing the coherence between the
speed of the synchronous generator and the duty cycle of the
booster.
Original language | English |
---|---|
Title of host publication | Upec'99 |
Place of Publication | Leicester |
Publisher | Leicester University |
Publication date | 1999 |
Pages | 369-372 |
Publication status | Published - 1999 |
Event | UPEC 1999: 34th Universities’ Power Engineering Conference - Leicester, United Kingdom Duration: 14 Sept 1999 → 16 Sept 1999 Conference number: 34 |
Conference
Conference | UPEC 1999: 34th Universities’ Power Engineering Conference |
---|---|
Number | 34 |
Country/Territory | United Kingdom |
City | Leicester |
Period | 14/09/1999 → 16/09/1999 |