1037 patents
Page 17 of 52
Utility
Method of installing a rotor on a wind turbine, a rotor hub and counterweight assembly, and a lifting apparatus connecting member
6 Sep 22
A method of installing a rotor on a nacelle (44) on a wind turbine generally includes providing a rotor hub counterweight assembly (10, 10′) which are rotated and lifted from a downtower location to an uptower location at which wind turbine blades (50, 52, 54) are progressively attached and the counterweights (14, 16), (14′, 16′) are progressively removed.
Gunnar K. Storgaard Pedersen, Christian Skov Frederiksen, Anton Bech
Filed: 25 Jul 19
Utility
Black start restoration
6 Sep 22
Embodiments herein described provide systems and techniques for performing black start operations.
Tusitha Abeyasekera
Filed: 24 Jan 19
Utility
Hybrid renewable power plant
6 Sep 22
A renewable power plant configured to deliver electrical power to an electrical grid in accordance with a reference is disclosed.
Per Hagen Nielsen
Filed: 30 Dec 19
Utility
Vibration Damping of a Structure
1 Sep 22
The present invention relates to a partly assembled structure in the form of a structure comprising a wind turbine tower, a nacelle arranged thereon and a vibration damper attached to the nacelle for damping vibrations of the combined wind turbine tower and nacelle within a selected frequency range, wherein the vibration damper is operatively connected to a main shaft of the nacelle, or wherein the vibration damper is attached to the nacelle via a nacelle transportation interface.
Giang C. Trung, Søren Bøgelund Madsen
Filed: 6 May 20
Utility
Modular Multilevel Converter Pre-charging
1 Sep 22
According to embodiments described herein a Modular Multilevel Converter (MMC) is pre-charged by: driving a bypass current from an auxiliary power source through a plurality of bypass switches included in a corresponding plurality of cells; in response to a summed voltage across a plurality of cell capacitors included in the plurality of cells satisfying a drive threshold, driving an insert current through a plurality of insert switches included in the plurality of cells; and in response to a voltage across a Direct Current (DC) link capacitor satisfying a pre-charge threshold when driving the insert current, opening a circuit breaker connecting the auxiliary power source with the plurality of cells and connecting a generator with external power line rails between which the DC link capacitor is connected.
Masoud PARKHOU, Lars HELLE, Cem Özgür GERÇEK
Filed: 17 Sep 20
Utility
Methods and systems for generating wind turbine control schedules
30 Aug 22
Generating a control schedule for a wind turbine, the control schedule indicating how the turbine maximum power level varies over time.
Chris Spruce, Chakradhar Byreddy, Kelvin Hales, Judith Turner
Filed: 17 Aug 20
Utility
Power control for hybrid power plant
30 Aug 22
A method of controlling a hybrid power plant connected to a power network, the hybrid power plant having a first renewable energy generator and a second renewable energy generator, the first renewable energy generator being configured to generate power using a different source of renewable energy to the second renewable energy generator.
Manoj Gupta, Ravi Kumar, Janakiraman Sivasankaran
Filed: 20 Nov 18
Utility
Wind Sensor Configuration
25 Aug 22
A method for determining a relative position of wind sensors on a wind turbine comprising: obtaining wind data from each of at least two wind sensors installed on a wind turbine at a location where airflow is affected by a rotor of the wind turbine, the obtaining occurring while the rotor is rotating, identifying oscillations in the wind data from each of the wind sensors, determining a phase or amplitude difference between the oscillations, and determining a relative position of the wind sensors based on the phase or amplitude difference.
Ines Pinto Frutuoso, Johnny Nielsen, Jens Van Schelve
Filed: 7 Jul 20
Utility
Rotor control system for reducing structural vibrations based on m-blade transformation
23 Aug 22
The present invention relates to a rotor control system for actuating pitch of pitch adjustable rotor blades in order to reduce vibrations of a wind turbine element, e.g. tower vibrations.
Jesper Sandberg Thomsen, Keld Hammerum
Filed: 7 May 19
Utility
Control of a wind power plant
23 Aug 22
The present invention relates to a method for controlling a wind power plant, WPP, comprising a plurality of wind turbine generators, WTGs, connected to an electrical grid, the method comprising: setting a plant power reference (Ptotal) according to an electrical value of the electrical grid; determining an inertia delta power reference (IRdeltaP) required for the WPP to meet a power demand in response to a change in the electrical value; adding the inertia delta power reference and the plant power reference (Ptotal) to form a power reference (Ptotalref); deriving an overboost reference (PrefOB) as the difference between the power reference (Ptotalref) and an available power value; dispatching the power reference (Ptotalref) to each wind turbine generator; dispatching the overboost reference (PrefOB) to each wind turbine generator.
Jorge Martinez Garcia, Kouroush Nayebi, Dumitru-Mihai Valcan, Mu Wei
Filed: 20 Dec 16
Utility
Controlled switching current of an on-load tap changer of a wind turbine
23 Aug 22
The invention relates to a method for controlling a wind turbine which comprises a transformer has a variable turns ratio such as an on load tap changer transformer.
Jesper Hillebrandt, Philip Carne Kjær
Filed: 23 Dec 20
Utility
Wind Turbine Blade Leading Edge Protection Method
18 Aug 22
Wind Turbine Blade (12) Leading Edge (24, 30, 88) Protection Method In a first aspect of the invention there is provided a method of applying an erosion shield (22) to a leading edge region (30) of a wind turbine blade (12).
Amin Kimiaeifar, Brian Bækdahl Damgaard
Filed: 26 Jun 20
Utility
Connection for Split Wind Turbine Blade
18 Aug 22
A wind turbine blade comprising: a first blade portion having a shell that defines a suction side, a pressure side, a leading edge, and a trailing edge of the blade, the first blade portion further including a first blade portion end surface at one end of the first blade portion; a second blade portion having a shell that defines a suction side, a pressure side, a leading edge, and a trailing edge of the blade, the second blade portion further including a second blade portion end surface at one end of the second blade portion, wherein the first blade portion and the second blade portion are configured to be coupled together at the first and second blade portion end surfaces; and a connection joint for coupling the first and second blade portions together, wherein the connection joint includes: a first insert embedded in the first blade portion; a fitting integral with the first insert and projecting from the first blade portion end surface toward the second blade portion end surface; a second insert embedded in the second blade portion; and a fastener arranged to fasten the second insert to the fitting.
Andrew Hedges, James Smith, Peter Bøttcher, Jens-Jørgen Hansen
Filed: 28 Jul 20
Utility
Controlling Power Output of a Wind Turbine at Below-rated Wind Speed
18 Aug 22
There is provided a method of controlling power output of a wind turbine at below-rated wind speed, the method comprising: determining an indication of blade torsion of one or more rotor blades of the wind turbine in dependence on wind speed and/or rotor speed; determining a torsion-corrected blade pitch based on the indication of blade torsion; and using the torsion-corrected blade pitch to control pitch the one or more rotor blades.
Fabio CAPONETTI, James Alexander NICHOLS, Benjamin ROWLINSON
Filed: 22 Jun 20
Utility
Improvements Relating to Wind Turbine Main Rotor Turning Systems
18 Aug 22
A turner gear arrangement (60) for turning a rotor of a wind turbine via a drivetrain thereof; said turner gear arrangement (60) comprising a motor (68), a torque transmission assembly (90), and a mounting assembly (80); said torque transmission assembly (90) comprising one or more rotational elements and including a turner output drive (92) rotating about an axis (R), said turner output drive (92) being operably coupled to and driven by said motor (68) and configured to transmit rotational motion to a gearbox output shaft of a said drivetrain, said turner output drive (92) further including an output guide portion (94); said mounting assembly (80) being configured to mount said motor (68) and said transmission assembly (90) in a fixed relation with respect to a wind turbine drivetrain; and wherein said mounting assembly (80) further includes a radial support interface (86) which operably engages with said output guide portion (94), to constrain movement of said turner output drive (92) in a direction transverse to its rotational axis (R).
Joris Kofman
Filed: 7 Jul 20
Utility
the Mounting of Stators In Generators for Wind Turbines
18 Aug 22
A stator mount and a tool for adjusting the position of a stator mount of a stator of a generator of a wind turbine.
Peter Mongeau, Henrik Zaar Mannik, Lars Langvardt Krogh
Filed: 24 Jun 20
Utility
Power system and method for operating a wind power system with a dispatching algorithm
16 Aug 22
The present invention relates to a power system having a plurality wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators, where each of the plurality of wind turbine generator being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller; a first subset of wind turbine generators operating at an active power output unrestricted of the active power set point; and a second subset of wind turbine generators operating according to an active power set point; and wherein the wind power plant controller communicates the active power set point, in accordance with the active power output of the first subset of the plurality of wind turbines generators, so as to reduce active power fluctuation of the aggregated active power output of the first and second subset of the plurality of wind turbines generators.
Germán Claudio Tarnowski
Filed: 17 Jun 19
Utility
Control of a wind turbine
16 Aug 22
A control system and method of control are disclosed.
Anders Steen Nielsen, Tobias Gybel Hovgaard, Jacob Deleuran Grunnet
Filed: 20 Aug 19
Utility
Retrofitted wind turbine installation and a method of retrofitting a wind turbine installation with a replacement wind turbine
16 Aug 22
A retrofitted wind turbine installation for replacing a prior wind turbine installation includes the foundation of the prior wind turbine installation and a replacement wind turbine supported by the foundation, wherein the tower of the retrofitted wind turbine installation is a cable-stayed tower to reduce the bending loads imposed on the foundation.
Torben Ladegaard Baun, Jesper Lykkegaard Neubauer, Tue Hald
Filed: 21 Jan 19
Utility
Wind turbine blade, a method of controlling a wind turbine, a control system, and a wind turbine
16 Aug 22
A wind turbine blade is provided comprising a main blade portion and a light detection and ranging (LIDAR) element.
Pradeep Bosukonda, Tobias Østergaard Rossel, Johnny Nielsen
Filed: 20 Jun 19