1Author Gillie Country UK Session 4 – Block a

Barcelona 12-15 May 2003

'Virtual' Power Plant

Gas Turbine Xs

Induction Generators

Synchronousgenerator

AVR/PSS

Wind Turbines

E

TransformerXi

Xe

J

Transformer

governor

� Gas turbine used regulate power and voltage at point J.

� Voltage support allows wind farm to remain connected during a fault.

● Regulated voltage and power could allow increased penetration of wind power into grid.● Gas turbine and wind farm do not have to be located in same place.

-could offer support to offshore wind farms.

1Author Gillie Country UK Session 4 – Block a

Barcelona 12-15 May 2003

Model● Model uses dq axis reference frame. ● Wind farm model stastistically scaled version of validated single wind turbine model.● 3-phase line to earth fault modeled between point J and the grid.

ResultsNormal operating conditions

- Voltage regulated to ± 2.5%- Real power regulated to ± 5%

Fault conditions- Wind farm remains connected.

1Author Gillie Country UK Session 4 – Block a

Barcelona 12-15 May 2003

1Author Gillie Country UK Session 4 – Block a

Barcelona 12-15 May 2003