Abstract: A wind power turbine configured to produce and feed electric energy to an electric power grid; the wind power turbine having: a blade assembly; at least one electric machine connected to the blade assembly to generate electric energy, and having a rotor, and a stator divided into a quantity or number of stator subsystems; and an electric transmission system configured to connect the quantity or number of stator subsystems to the electric power grid, and having an electric transmission assembly for, and connected to, each stator subsystem. The wind power turbine being characterized by having a control device connected to, and configured to receive malfunction signals from, the electric transmission assemblies, and configured to define an individual target torque reference value on the basis of the malfunction signals from the electric transmission assemblies, so as to reduce discontinuity in the torque of the rotor.

Abstract: A wind turbine configured to generate electric energy and feed electric energy to an electric power grid, the wind turbine having a blade assembly; an electric machine having a stator, and a rotor connected to the blade assembly to generate electric energy; a first switch converter connected to the electric machine to control stator electric quantities (IS; VS); a second switch converter connected to the electric power grid; and a DC link circuit configured to connect the first switch converter to the second switch converter; the wind turbine being characterized by having a control device which, by at least one of the first and second switch converters, controls a direct voltage (VDC) in the DC link circuit on the basis of an operating parameter of the electric machine indicating the stator voltage (VS) of the electric machine, and on the basis of a quantity indicating the line voltage (Vlin) of the electric power grid.

Abstract: A wind power turbine configured to produce and feed electric energy to an electric power grid; the wind power turbine having: a blade assembly; at least one electric machine connected to the blade assembly to generate electric energy, and having a rotor, and a stator divided into a quantity or number of stator subsystems; and an electric transmission system configured to connect the quantity or number of stator subsystems to the electric power grid, and having an electric transmission assembly for, and connected to, each stator subsystem. The wind power turbine being characterized by having a control device connected to, and configured to receive malfunction signals from, the electric transmission assemblies, and configured to define an individual target torque reference value on the basis of the malfunction signals from the electric transmission assemblies, so as to reduce discontinuity in the torque of the rotor.

Abstract: A wind turbine configured to generate electric energy and feed electric energy to an electric power grid, the wind turbine having a blade assembly; an electric machine having a stator, and a rotor connected to the blade assembly to generate electric energy; a first switch converter connected to the electric machine to control stator electric quantities (IS; VS); a second switch converter connected to the electric power grid; and a DC link circuit configured to connect the first switch converter to the second switch converter; the wind turbine being characterized by having a control device which, by at least one of the first and second switch converters, controls a direct voltage (VDC) in the DC link circuit on the basis of an operating parameter of the electric machine indicating the stator voltage (VS) of the electric machine, and on the basis of a quantity indicating the line voltage (Vlin) of the electric power grid.