General Electric Company

Friedrich Loh

Hartmut Andreas Scholte-Wassink

Enno Ubben

Detlef Menke

Joerg Middendorf

Till Hoffmann

Christoph Schulten

Gert Torbohm

Juergen Esser

Till Hoffman

In one aspect, a method for selecting wind turbine generators in a wind park for a change in output power comprises providing a wind park comprised of a plurality n of wind turbines; selecting, on a non-spatial basis, n&#x2212;1 or fewer wind turbines from the wind park for a change in power output; and changing power output of one or more of the selected n&#x2212;1 or fewer wind turbines.

System and method of selecting wind turbine generators in a wind park for change of output power

In one aspect, a method of selecting wind turbine generators in a wind park for curtailment of output power to provide a wind reserve comprises providing a wind park comprised of a plurality n of wind turbines each having an individual possible power output and the wind park has a combined possible power output of X, where X comprises a summation of the individual possible power output of the n wind turbines; setting a power setpoint Y for the wind park, wherein Y&#x2266;X and X&#x2212;Y comprises a wind reserve; selecting, on a non-spatial basis, n&#x2212;1 or fewer wind turbines from the wind park for power output curtailment; and curtailing power output of one or more of the selected n&#x2212;1 or fewer wind turbines such that a total power output of the wind park comprises Y.

System and method of selecting wind turbine generators in a wind park for curtailment of output power to provide a wind reserve

A method of assembling a pitch assembly for use with a wind turbine. The wind turbine includes a rotor and a plurality of rotor blades coupled to the rotor. The method includes coupling a pitch drive system to at least one of the plurality of rotor blades for rotating the rotor blade about a pitch axis. At least one sensor is coupled in signal communication with the pitch drive system. The pitch drive system rotates the rotor blade when the sensor senses rotor overspeed.

Systems and methods for assembling a pitch assembly for use in a wind turbine

The present disclosure relates to a method for controlling a wind turbine, the wind turbine including at least one movable portion which is movable during operation of the wind turbine and at least one movable portion device including at least one of a movable portion transmitter or a movable portion receiver, the movable portion transmitter or the movable portion receiver being disposed at the least one movable portion; the method including: at least one of sending to or receiving from at least three reference points at least one signal by at least one of the movable portion transmitter or movable portion receiver; and determining at least one operational parameter of the wind turbine depending on at least one characteristic of the at least one received signal. Further the present disclosure relates to a wind turbine arrangement and a system for controlling a wind turbine, comprising a controller of the wind turbine and a movable portion.

Method for controlling a wind turbine, and wind turbine arrangement

A method for operating a wind turbine is provided. The wind turbine includes a rotor including at least one rotor blade and a pitch drive system coupled to the at least one rotor blade. The pitch drive system is adapted for pitching the rotor blade. The method includes: determining an actual value of a first variable indicative of an overspeed state of the wind turbine; determining an actual value of a second variable of the wind turbine correlated to the rate of change over time of the first variable; and, estimating an occurrence of an overspeed state of the wind turbine from at least the determined actual values of the first and second variables. The pitch drive system pitches the rotor blade for aerodynamically braking the rotor based on the result of the estimation.

Apparatus and method for operation of a wind turbine

A method for controlling operation of a floating wind turbine is described. The floating wind turbine includes a wind turbine generator coupled to a support tower. The method includes measuring a tower inclination, determining an operating parameter control value based on at least the measured tower inclination, and adjusting wind turbine operation based at least partially on the operating parameter control value.

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Schuettorf, Germany

Friedrich Loh