Patent ID: 8598727

Claim:
A method for controlling a wind turbine connected to a utility grid, the method comprising: operating the wind turbine with operational settings in a first state; in response to a fault event in the utility grid, controlling at least one of (i) one or more rotor blades of the wind turbine and (ii) power generated by the wind turbine to the utility grid to change the operational settings of the wind turbine from the first state to a second state that avoids overspeeding of a rotor of the wind turbine; measuring values of mechanical oscillations of the wind turbine or loads of the wind turbine; and in response to the utility grid recovering from the fault event, controlling at least one of (i) the one or more rotor blades of the wind turbine and (ii) the power generated by the wind turbine to the utility grid to compensate for the mechanical oscillations of the wind turbine or loads of the wind turbine as the operational settings of the wind turbine are changed from the second state.