| 摘要 |
A method of controlling an electric output of a wind park is carried out jointly by wind turbines with their local wind-turbine controllers and a central wind-park controller. The central wind-park controller generates a reference value for a wind turbine,based on the measured value of an electric quantity at a point of common measurement, and provides it to the local wind-turbine controller. The local wind-turbine controller produces a voltage or a reactive-power in the electric grid at the location of the wind turbine corresponding to the reference value, but which is corrected by a local correction. The local correction takes into account a voltage or a reactive-power change expected at the point of common measurement for the electric current supplied by the wind turbine due to the electric impedance of the grid connection to the point of common measurement. |
