Abstract: The present disclosure relates to methods (100, 200) for ramping up the power output of a wind turbine (10). A method (100) comprises increasing (110) electric power output from an initial power value (61) at a first power ramp rate (63); and when reaching an intermediate power value (69), increasing (120) the electric power output to a target power value (59) at a second power ramp rate (67) different from the first power ramp rate (63). The intermediate power value (69) is the sum of the initial power value (61) and a predetermined power difference (71).

Abstract: A method for operating a power generation system having a drivetrain connected to an electrical grid during one or more grid transient events includes receiving an indication of the one or more grid transient events occurring in the electrical grid. The method also includes selecting between a first set of drivetrain damping control settings or a different, set second set of drivetrain damping control settings based on the indication. The first set of drivetrain damping control settings is for handling a single, first grid transient event, whereas the second set of drivetrain damping control settings is for handling additional, subsequent grid transient events following the first transient event. The method also includes controlling the power generation system based on the selected first or second sets of the drivetrain damping control settings such that the power generation system can remain connected to the electrical grid during the grid transient event(s).

Abstract: A method for operating a power generation system having a drivetrain connected to an electrical grid during one or more grid transient events includes receiving an indication of the one or more grid transient events occurring in the electrical grid. The method also includes selecting between a first set of drivetrain damping control settings or a different, set second set of drivetrain damping control settings based on the indication. The first set of drivetrain damping control settings is for handling a single, first grid transient event, whereas the second set of drivetrain damping control settings is for handling additional, subsequent grid transient events following the first transient event. The method also includes controlling the power generation system based on the selected first or second sets of the drivetrain damping control settings such that the power generation system can remain connected to the electrical grid during the grid transient event(s).

Abstract: A method of operating a wind turbine comprising a generator in the event of a voltage dip is disclosed. The method comprises detecting an end of the voltage dip, determining an acceleration of a rotor of the generator, and increasing a torque of the generator when the end of the voltage dip is detected according to a selected torque profile. The selected torque profile is selected from a plurality predetermined torque profiles, wherein the predetermined torque profiles describe torque as a function of time. The selected torque profile is selected based on the determined acceleration of the rotor of the generator. Also provided are wind turbines configured for such methods.

Abstract: A method of operating a wind turbine comprising a generator in the event of a voltage dip is disclosed. The method comprises detecting an end of the voltage dip, determining an acceleration of a rotor of the generator, and increasing a torque of the generator when the end of the voltage dip is detected according to a selected torque profile. The selected torque profile is selected from a plurality predetermined torque profiles, wherein the predetermined torque profiles describe torque as a function of time. The selected torque profile is selected based on the determined acceleration of the rotor of the generator. Also provided are wind turbines configured for such methods.