Siemens Aktiengesellschaft

Siemens Gamesa Renewable Energy A/s

Siemens Aktiengesell Schaft

Per Egedal

Gustav Hoegh

Peder Bay Enevoldsen

Henrik Stiesdal

Martin Huus Bjerge

Thomas Esbensen

Volkmar Sterzing

Alejandro Gomez Gonzalez

Hans Laurberg

Mikkel Aggersbjerg Kristensen

Sathees Kumar

Michael Stoettrup

Moritz Fiedel

Kaj Skov Nielsen

Dragan Obradovic

Andreas Ziroff

Björn Andresen

Andrei Szabo

Rune Rubak

Robert John Nelson

Steffen Udluft

Siegmund Düll

Marc Christian Weber

Clemens Otte

Erik Groendahl

Stefan Oerlemans

Heng Deng

Thomas A Runkler

Alexander Hentschel

Ruxandra Scheiterer

Thomas Hjort

Ralph Grothmann

Soeren Oemann Lind

Bo Yin

Pieter M O Gebraad

Martin Folmer Andersen

Jimmi Andersen

Bo Birkemose

Dennis Soebye Jensen

Ole Kjaer

Ramakrishnan Krishna

Jesper Munch

Søren Hjort

Esther Meyer

Martin Winther-Jensen

Kurt Andersen

Thomas Runkler

Martin Nygaard Kragelund

Mogens Lund

Kristian Robert Dixon

Carla Hagler

Oscar Ramirez Requeson

Andreas Groth Knudsen

Jochen Cleve

Markus Kaiser

Claus Vad

Anders Eriksen

Jesper Winther Staerdahl

Bjarne Skovmose Kallesoee

Jonas Helboe Joergensen

Tomas Rosenberg Hansen

Ge Xie

Martin Greiner

Jens Christian Kjeldsen

Nikolaus Goldenbaum

Mads Krogsgaard

Groth Andreas Knudsen

A method of detecting an adjustment fault related to a wind turbine rotor blade mounted at a wind turbine rotor and including an adaptable flow regulating device, in particular spoiler and/or flap, the method including: estimating a quantity indicative of a change of a driving impact of wind on the wind turbine rotor based on at least two settings of the adaptable flow regulating device; determining another quantity indicative of a desired change of the driving impact on the wind turbine rotor, in order to change a value of a rotor speed to a reference value of the rotor speed; and indicating an adjustment fault based on a comparison of the quantity with the other quantity, is provided.

Detecting a wind turbine rotor blade adjustment fault

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

Provided is a wind turbine and to a method and a device for controlling aerodynamic properties of a blade of the wind turbine, the blade including a predetermined number of add-on members which are actuated by a corresponding trim actuator to alter the aerodynamic properties of the blade, wherein each trim actuator is configured to hold the add-on member in a predetermined first position and a predetermined second position. The control device is configured to determine a first number of add-on members which are to be held at the predetermined first position, and to determine a second number of add-on members which are to be held at the predetermined second position.

Controlling of segmented add-on members of a wind turbine blade

Provided is controller for a wind turbine including a power controller unit for controlling a power output of an electric generator included in the wind turbine. The power controller unit operates the electric generator according to a speed reference value and a power reference value, the speed reference value and a power reference value being chosen along a linear operating trajectory in a power vs speed graph, the linear operating trajectory including a point corresponding to the nominal power and the nominal generator speed. The power controller unit includes a slider command for selecting the angular position of the linear operating trajectory in the power vs speed graph.

Controller for a wind turbine

A method of adapting noise emission configurations of plural wind turbines, the method including: determining total wind turbine related noise levels at plural locations; determining, among the plural locations, a critical location having a most critical, in particular highest, total wind turbine related noise level; if the most critical total wind turbine related noise level is above a noise threshold: reducing the noise emission configuration of a wind turbine having the highest noise to power impact ratio, is provided.

Noise control of wind turbine

Provided is a method of estimating a value of wind speed a wind turbine is subjected to, the wind turbine having a rotor with rotor blades at least one having an adaptable flow regulating device installed, the method including: obtaining values for power output of the wind turbine, rotor speed of the rotor, and pitch angle of the rotor blades; obtaining state information of the adaptable flow regulating device; and estimating the value of the wind speed based on the values for power output, rotor speed, pitch angle and the state information of the adaptable flow regulating device.

Estimating wind speed

Provided is a method for detecting the operative status of an aerodynamic device for influencing the airflow which flows from the leading edge of a rotor blade for a wind turbine to the trailing edge of the rotor blade, the aerodynamic device being movable by an actuator between a first protruded configuration and a second retracted configuration. The method includes the steps of measuring a temporal course of an operational value of the wind turbine, comparing the measured temporal course of the operational value with a desired temporal course of an operational value, and deriving an operative status of the aerodynamic device.

Wind turbine blade flow regulation

Provided is an arrangement for controlling inflow and outflow of a fluid into and out of an expandable container arranged to change a state of an adaptable flow regulating device installed at a wind turbine rotor blade, the arrangement including: an inflow valve arranged to control fluid inflow into the container; an outflow valve arranged to control fluid outflow out of the container; wherein the inflow valve and the outflow valve are configured to prohibit fluid flow into and/or out of the container in case of safety stop event.

Safe state of an adaptable wind turbine blade

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.

Device and method of damping front and backward movements of a tower of a wind turbine

A method of controlling a wind turbine including a plurality of rotor blades, a first controller for controlling an adaptive flow regulating system having a plurality of individually controllable adaptive flow regulating devices arranged on the rotor blades, and a second controller for controlling a pitch regulating system for regulating a pitch angle of each rotor blade. The method includes (a) determining a diagnostic value indicative of an operational efficiency of the adaptive flow regulating system, (b) determining a first gain value for the first controller and a second gain value for the second controller based on the diagnostic value, (c) applying the first gain value to control signals for the adaptive flow regulating system generated by the first controller, and (d) applying the second gain value to control signals for the pitch regulating system generated by the second controller, is provided.

Wind turbine control method and system

Provided is a wind park, a wind park controller, and a method for controlling a first wind turbine of a plurality of wind turbines of a wind park, wherein a second wind turbine of the plurality of wind turbines can be affected by a wake region caused by the first wind turbine which is positioned upstream of the second wind turbine. A current yaw state is determined and is selected from at least one of: a) an actual rotor yaw misalignment angle of the first wind turbine, wherein the actual rotor yaw misalignment angle is an angle between a rotating axis of a rotor of the first wind turbine and a current wind direction at the rotating axis upstream of the first wind turbine, b) an identifier representing whether the actual rotor yaw misalignment angle is either in a range of positive yaw misalignment angles or of negative yaw misalignment angles.

Controlling wind turbines in presence of wake implications

Provided is an apparatus and method for cooperative controlling wind turbines of a wind farm, wherein the wind farm includes at least one pair of turbines aligned along a common axis approximately parallel to a current wind direction and having an upstream turbine and a downstream turbine. The method includes the steps of: a) providing a data driven model trained with a machine learning method and stored in a database, b) determining a decision parameter for controlling at least one of the upstream turbine and the downstream turbine by feeding the data driven model with the current power production of the upstream turbine which returns a prediction value indicating whether the downstream turbine will be affected by wake, and/or the temporal evolvement of the current power production of the upstream turbine; c) based on the decision parameter, determining control parameters for the upstream turbine and/or the downstream turbine.

Method and apparatus for cooperative controlling wind turbines of a wind farm

A method for damping vibration in a wind turbine including aerodynamic devices for influencing the airflow flowing from the leading edge of a rotor blade of the wind turbine to the trailing edge of the rotor blade, each aerodynamic device being movable by an actuator between a first protruded configuration and a second retracted configuration is provided. The method includes

Damping vibrations in a wind turbine

A method is provided for determining an orientation of a rotor plane of a wind turbine, including the following steps: determining direction information of a moving part of a wind turbine on basis of at least one signal of a positioning system received at the moving part, determining the orientation of the rotor plane on basis of the determined direction information. Further, a wind turbine and a device as well as a computer program product and a computer readable medium are suggested for performing the method.

Determining an orientation of a rotor plane of a wind turbine

Growing community of inventors

Herning, Denmark

Per Egedal