General Electric Company

Eugenio Yegro Segovia

Jacob Johannes Nies

Bradley Graham Moore

Pedro Luis Benito Santiago

Mohan Muthu Kumar Sivanantham

Ryan Spencer Close

Miguel Bartolome Lopez

Alvaro Jaime Calle Garrido

Francisco Garcia Lopez

Vidya Sagar Meesala

Mateusz Pawel Wenclik

Ronald Eduard Stam

Rajasekhar Koppolu

Sjouke Jan Van Der Zee

Pedro Luis Santiago Benito

Prasad Ogde

Jonathan Zalar

Verma Gitesh

According to the present disclosure, a method of operating a wind turbine () coupled to a power grid () for delivering electric power thereto is provided. The method includes: a) operating the wind turbine () in a noise reduction mode; b) determining whether the power grid () is in an unstable grid state corresponding to an increase of power demand; and, c) increasing the electric power delivered by the wind turbine () to the power grid () during a stabilization time period for supporting stabilization of the unstable grid. Further, the increasing of the electric power for supporting stabilization of the unstable grid is performed such that a resulting noise increase is below a selected upper level. In addition thereto, a control system and a wind turbine for performing the above method are provided.

Methods and systems for operating a wind turbine coupled to a power grid

A wind turbine including a nacelle and a rotor hub is disclosed. The nacelle may extend between a hub end and an aft end and may define a nacelle shaft opening and a nacelle access port at the hub end. The rotor hub may extend between a first end and a second end, with the second end being disposed adjacent to the hub end of the nacelle. The rotor hub may also define a hub shaft opening at the second end and a hub access port generally adjacent to the hub shaft opening. In addition, the wind turbine may include an access bridge configured to extend between the nacelle and the rotor hub so as to provide access between the nacelle access port and the hub access port.

Wind turbine with access features for gaining access to the interior of a rotor hub

A system and method for lubricating gears in a wind turbine blade pitch drive are provided, wherein the pitch drive comprises a drive pinion gear with gear teeth that engage a pitch bearing gear coupled to a respective wind turbine blade. A grease distributor is configured to mount onto and rotate with the pinion gear, and is configured to deliver grease from an external grease supply to at least one valley defined between adjacent teeth of the pinion gear in a contact area of the pinion gear with the bearing gear without the distributor contacting inter-engaging teeth of the bearing gear.

System and method for lubricating gears in a wind turbine

A method of assembling a blade extension assembly for use with a wind turbine. The method includes removing a tip end of a tip portion of a rotor blade and coupling a tip wall to the tip portion. The tip wall extends between a first sidewall and a second sidewall and includes a plurality of slots defined therein. A blade extension assembly is coupled to the tip portion.

Systems and methods of assembling a rotor blade extension for use in a wind turbine

The present disclosure relates to a wind turbine () including: a rotor () including a rotatable hub () and a plurality of rotor blades (), each of the plurality of rotor blades () being attached to the hub (); and at least one airfoil body () including an aerodynamic profile () and an airfoil body root portion (); wherein the aerodynamic profile () is configured for increasing aerodynamic lift of at least an inner portion of a rotor blade (); and the at least one airfoil body () is attached to the hub () at the airfoil body root portion (). In addition thereto, the present disclosure relates to an aerodynamic assembly () for a wind turbine () and a method of assembling a wind turbine ().

Wind turbine, aerodynamic assembly for use in a wind turbine, and method for assembling thereof

A wind turbine includes a rotor having a hub and at least one rotor blade, wherein the operating height of the hub is adjustable. Further, a method for operating a wind turbine is provided, which includes varying the height of the wind turbine.

Wind turbine having variable height and method for operating the same

A system for stiffening and pre-stressing a generator frame in a wind turbine is provided. The system includes a plurality of stress-inducing members configured for imparting a predetermined amount of stress on the generator frame. Each of the plurality of stress-inducing members has a length, a first end, and a second end and the length of each of said plurality of stress-inducing members is selectively adjustable. A coupling plate is configured for coupling the second ends of at least some of the plurality of stress-inducing members together. A plurality of brackets are coupled to the generator frame and configured to couple the first ends of the plurality of stress-inducing members to the generator frame.

Pre-stressed stiffening system for a wind turbine generator frame

A method of assembling an offshore support system for use with a wind turbine. The method includes coupling a damper to a wind turbine tower. A counter-balance system is coupled to the damper for suspending at least a portion of the wind turbine above a water surface. The damper is positioned at least partially below a water surface to facilitate reducing movement of the wind turbine in at least one direction. The counter-balance system is positioned at least partially below the water surface to stabilize the wind turbine when subjected to wind and tidal forces.

Systems and methods for assembling an offshore support system for use with a wind turbine

A method of assembling a wind turbine is provided. The method includes coupling a support flange to an inner surface of a tower, and positioning a yaw bearing on the support flange. The yaw bearing includes a plurality of horizontally oriented rollers. A base of a nacelle assembly is positioned on the yaw bearing such that the base is rotatable with respect to the tower.

Wind turbine and method of assembling the same

A wind turbine nacelle configuration includes a frame structure configured for mounting atop a wind turbine tower. The frame structure includes a base, side support members, and top support members. A shell is attached to the frame structure to enclose the nacelle. A drive train may be housed within the frame structure and includes a low speed rotor shaft connected to a gearbox, and a high speed shaft connecting the gearbox to a generator. The frame structure is configured so that at least one component of the drive train is suspended from the top support members within the frame structure.

Configuration of a wind turbine nacelle

A generator for use in a wind turbine includes a rotor including a plurality of windings. The rotor is configured to be electrically coupled to a wind turbine electrical distribution system. The generator also includes a stator including a plurality of windings. The stator is configured to be magnetically coupled to the rotor and electrically coupled to the wind turbine electrical distribution system. The stator is further configured to switch between a first number of magnetic poles and a second number of magnetic poles.

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Madrid, Spain

Eugenio Yegro Segovia