Controller and control method for a wind turbine
AssigneeWobben Properties GmbH
InventorEnno Von Aswege
Life of this patent
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Abstract
A controller structure for a wind turbine having an aerodynamic rotor with at least one rotor blade, wherein the controller structure is designed to control a rotation speed of the rotor of the wind turbine, wherein the controller structure is designed as a cascade control arrangement and has an outer control loop and an inner control loop, wherein the inner control loop receives an input signal which comprises a change in the rotation speed, an acceleration of the rotation speed, a function of the change in the rotation speed and/or a function of the acceleration of the rotation speed.
Claims19
A controller for a wind turbine having an aerodynamic rotor with at least one rotor blade, the controller comprising:
- circuitry forming a cascade control arrangement and having an outer control loop and an inner control loop, wherein the controller is configured to control a rotation speed of the aerodynamic rotor of the wind turbine,
- wherein the inner control loop is configured to receive one or more input signals indicative of one or more characteristics chosen from a change in the rotation speed, an acceleration of the rotation speed, a function of a change in the rotation speed and a function of an acceleration of the rotation speed,
- wherein the one or more input signals received by the inner control loop comprises a rotor acceleration power or a rotor acceleration torque.
A method comprising:
- operating a wind turbine having an aerodynamic rotor with at least one rotor blade, wherein the operating comprises controlling a rotation speed of the rotor of the wind turbine, wherein the controlling comprises using a cascade control arrangement having an outer control loop and an inner control loop, wherein the controlling comprises:
- acquiring, by the inner control loop, an input signal indicative of one or more characteristics chosen from a change in the rotation speed, an acceleration of the rotation speed, a function of a change in the rotation speed and a function of an acceleration of the rotation speed,
- wherein the one or more input signals received by the inner control loop comprises a rotor acceleration power or a rotor acceleration torque.
Dependencies are inferred from the claim text.