METHODS AND SYSTEMS FOR OPERATING A WIND TURBINE COUPLED TO A POWER GRID

摘要

According to the present invention, a method is provided for operating a wind turbine (10) connected to a power grid (92) for producing electrical energy therefrom. The method includes: a) operating the wind turbine (10) in noise-reduction mode; b) determining whether the power grid (92) has an unstable grid space corresponding to an increase in energy demand; and c) increasing the electrical energy produced by the wind turbine (10) to the power grid (92) for a stabilization time period in order to support stabilization of the unstable grid. Furthermore, the electrical energy for supporting stabilization of the unstable grid is increased such that an increase resulting in noise is below the selected upper level. In addition to this, a control system and a wind turbine for implementing the above method are provided.