Siemens Gamesa Renewable Energy A/s

Siemens Aktiengesellschaft

Thomas Esbensen

Gustav Hoegh

Per Egedal

Ryan Andrew Sievers

Martin Folmer Andersen

Ramakrishnan Krishna

Kirk Pierce

Kasper Laugesen

Carla Hagler

Peder Bay Enevoldsen

Volkmar Sterzing

Siegmund Düll

Samuel H Hawkins

Justin Creaby

Oscar Ramirez Requeson

Hans Laurberg

Heng Deng

Martin Huus Bjerge

Michael Stoettrup

Jesper Elliot Petersen

Jared Frank

Eduardo Raymaska Wiputra

Henrik Stensgaard Toft

Johnny Rieper

Kristian Robert Dixon

Tommy Hastrup Knudsen

Soeren Trabjerg Brun

Søren Forbech Elmose

Muhammad Arsalan Khan

Kristian Holm-Joergensen

Oto Bauer

Per Moelhave Christiansen

Frank Scheurich

Fiona Dunne

Brian Willum Solberg

Claus Andersen

Kim Billesoe Danielsen

A method of handling a wind turbine is provided including a nacelle coupled via a yawing system to a tower for protection against high wind load, the method including: supplying a control signal to a yawing actuator of the yawing system, while the nacelle is in a first orientation; exerting, by the yawing actuator, a torque to the nacelle relative to the tower, thereby turning the nacelle to a second orientation being a downwind orientation.

Handling a wind turbine in a severe weather condition

A wind turbine, a method and a control system for aligning a nacelle of a wind turbine with a target yaw angle is provided, wherein the control system includes a detection device configured for detecting at least one parameter indicative of wind forces acting on at least one component of the wind turbine for determining a current yaw angle of the nacelle, and an actuation device configured for manipulating a position of the nacelle until the current yaw angle is aligned with the target yaw angle, wherein the detection device includes at least one first bending moment sensor on a first component, wherein the detection device is configured for determining a bending moment of the first component based on data received from the first bending moment sensor as the at least one parameter indicative of wind forces acting on the at least one component of the wind turbine.

Control system for aligning a nacelle of a wind turbine with a target yaw angle

A wind turbine includes tower, a nacelle mounted at the top of the tower, a rotor mounted rotatable relatively to the nacelle about a rotation axis and includes at least one blade, wherein the blade, when rotating about the rotation axis, is configured to span a swept area, and a control device which is configured to control an actuator so as to move the swept area.

Wind turbine comprising reciprocating swept area and method of controlling a wind turbine

Provided is a control system for stabilizing a floating wind turbine, the comprising a detection device for monitoring an offset from a predetermined floater pitch angle and/or an offset from a predetermined floater yaw angle, wherein the detection device is further configured for monitoring an oscillating motion of the floater pitch angle and/or the floater yaw angle, wherein the predetermined floater pitch angle and floater yaw angle define a predetermined balanced state of the floating wind turbine, wherein a threshold of the oscillating motion of the floater pitch angle and the oscillating motion of the floater yaw angle further define the predetermined balanced state of the floating wind turbine, and an actuation device configured for manipulating the oscillating motion of the floater pitch angle and/or the oscillating motion of the floater yaw angle until the predetermined balanced state of the floating wind turbine is met.

Control system for stabilizing a floating wind turbine

Provided is a method of controlling a wind turbine during damping a mechanical oscillation of the wind turbine having a generator system coupled to a rotor at which plural rotor blades are mounted, the method including: generating a damping control signal in dependence of an indication of the oscillation; performing damping control of the generator system based on the damping control signal causing damping related power output variation at an output terminal of the generator system; and controlling an energy storage device connected to the output terminal of the generator system and connected to an output terminal of the wind turbine based on the damping control signal.

Control of wind turbine during mechanical oscillation damping

A method of controlling a wind turbine by adjusting a blade pitch angle and at least one blade add-on of at least one wind turbine rotor blade has the blade add-on, the method including: adjusting a setting of the add-on to meet a control objective while temporarily maintaining a setting of the blade pitch angle.

Controlling a wind turbine using blade pitch angle setting and blade add-on setting

It is described a method of operating at least one adaptable airflow regulating system () of at least one rotor blade () of a wind turbine () connected to a utility grid (), the method comprising: receiving information () regarding a grid disturbance; adapting, in particular during a disturbance duration, the airflow regulating system () based on the information (), while the wind turbine () stays connected to the utility grid ().

Wind turbine operational method for responding to grid disturbance

A method of controlling a pitching system of a rotating rotor blade of a wind turbine includes: controlling the pitching system such that unintended pitching due to gravity is reduced.

Compensating gravity cycles of a pitching system

Provided is a method of determining a wind parameter value for use in a wind turbine control system, the method including (a) receiving a plurality of wind measurement signals, wherein each wind measurement signal is provided by a respective wind sensor among a plurality of wind sensors, (b) determining a set of statistical values based on the wind measurement signals, (c) calculating a weighting factor for each wind measurement signal based on the set of statistical values, and (d) calculating the wind parameter value as a weighted sum by applying the calculated weighting factors to the corresponding wind measurement signals. Further, a corresponding system and a wind turbine with such a system are provided.

Determination of wind parameter values for use in wind turbine control systems

Provided is a method of setting and clearing a full-power flag in a control process running on a wind turbine controller, the method including (a) acquiring a set of measured values and/or reference values for: rotor speed, output power, blade pitch angle, and activation level of an adaptive flow regulating system, (b) determining that a first condition is fulfilled when the value of the rotor speed equals a speed limit value and the output power reference value equals a power limit value, (c) determining when the blade pitch angle reference value fulfills a pitch condition and the activation level of the adaptive flow regulating system fulfills an adaptive flow regulating condition, or when the measured value of the rotor speed is below the speed limit value, (d) setting the full-power flag, and (e) clearing the full-power flag. Furthermore, a wind turbine controller and a wind turbine including such a controller.

Method and controller for full-power control of a wind turbine

A method of controlling at least one adaptable airflow regulating system, in particular spoiler and/or flap, of at least one rotor blade of a wind turbine having a wind turbine tower includes: determining a quantity related to a distance between the rotor blade and the wind turbine tower; controlling the airflow regulating system based on the quantity.

Rotor blade deflection control using active rotor blade add-on

Provided is a method of correcting a measurement value of least one wind characteristic, in particular wind speed and/or wind direction, related to a wind turbine having a rotor with plural rotor blades at least one having an adaptable flow regulating device installed, the method including: measuring a value of the wind characteristic; obtaining state information of the adaptable flow regulating device; and determining a corrected value of the wind characteristic based on the measured value of the wind characteristic and the state information of the adaptable flow regulating device.

Correcting measured wind characteristic of a wind turbine

A method of controlling a wind turbine, wherein the wind turbine includes a hub having at least one blade with at least one an add-on member which is actuated to alter aerodynamic properties of the blade. The method includes a step of acquiring a target noise level, and a step of controlling the at least one add-on member of the blade such that an actual noise level caused by the operation of the wind turbine is equal to or below the target noise level.

Method and device for controlling a wind turbine to reduce noise

Provided is a method of controlling at least one wind turbine in case of a rotational overspeed situation, the method including: determining a current state related to the wind turbine; providing data related to the current state as input to a turbine model; predicting a load of at least one wind turbine component and power output of the wind turbine using the turbine model provided with the input for plural control strategies; comparing the predicted load and power output for the plural control strategies; and selecting that control strategy among the plural control strategies that satisfies a target criterion including the load and the power output.

Reaction to an overspeed event

Provided is a device and a method of damping front and backward movements of a tower of a wind turbine, wherein the wind turbine includes the tower and a rotor, the rotor being mounted at the top of the tower to rotate about a rotational axis in which the front and backward movements of the tower occur, and the rotor has a plurality of blades, wherein each blade has at least one corresponding active add-on member which is actuated by a corresponding actuator to alter aerodynamic properties of the blade. Each add-on member is actuated by the corresponding actuator to alter the aerodynamic properties of the blade in a manner that the rotor is configured to damp the front and backward movements of the tower of the wind turbine.

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Herning, Denmark

Thomas Esbensen