494 patents
Page 20 of 25
Utility
Method for controlling a wind turbine during safety operation
2 Nov 20
A method for controlling a wind turbine during a safety operation is disclosed.
Keld Hammerum
Filed: 25 Jun 14
Utility
Segmented pitch ring for a wind turbine blade pitch system
2 Nov 20
The present invention provides a segmented pitch ring for use in a blade pitch system of a wind turbine.
Michael Christensen, Simon Kabus, Erik Markussen, Jesper Lykkegaard Neubauer
Filed: 7 Jun 16
Utility
System for monitoring a wind turbine blade
26 Oct 20
The present disclosure relates to a system for determining at least one blade state parameter of a wind turbine blade, wherein the system is configured to: obtain blade data relating to the wind turbine blade from a sensor system associated with the wind turbine blade; compare at least one reference model of at least a portion of the wind turbine blade with the blade data; identify a reference model in dependence on the comparison; and determine at least one blade state parameter in dependence on the identified reference model.
Jacob Deleuran Grunnet, Johnny Nielsen, Jes Rasmussen, Claus Thybo
Filed: 14 Dec 17
Utility
Wind turbine system with time distributed transitions
19 Oct 20
There is presented a wind turbine system, wherein the wind turbine system is comprising a support structure, a plurality of wind turbine modules mounted to the support structure wherein each of the plurality of wind turbine modules comprises a rotor, and wherein the wind turbine system further comprises a control system, wherein the control is arranged to execute a wind turbine system transition from a first system operational state of the wind turbine system to a second system operational state of the wind turbine system, and wherein the wind turbine system transition is performed by executing a plurality of wind turbine module transitions from a first module operational state of a wind turbine module to a second module operational state of the wind turbine module wherein the plurality of wind turbine module transitions are distributed in time with respect to each other.
Erik Carl Lehnskov Miranda, Jacob Deleuran Grunnet, Damien Castaignet
Filed: 11 Dec 16
Utility
Permanent magnetic electrical machine with bearing release system and method for bearing replacement
19 Oct 20
A method and apparatus for bearing replacement in an electrical machine is provided.
Norbert Stanke
Filed: 17 Jun 10
Utility
Method for monitoring and assessing power performance changes of a wind turbine
5 Oct 20
A method for monitoring and assessing power performance changes of one or more wind turbines of a wind farm, the method comprising the steps of: for each wind turbine to be monitored, defining a group of reference wind turbines, the group of reference wind turbines comprising two or more wind turbines, operating the wind turbines of the wind farm, while obtaining locally measured wind speeds at each of the wind turbines, during a training period, obtaining the power performance data in relation to the locally measured wind speed for each of the monitored wind turbines, during the training period, for each of the monitored wind turbines, generating a wind speed transfer function establishing a relationship between the locally measured wind speeds at each of the reference wind turbines and the locally measured wind speed at the monitored wind turbine, operating the wind turbines of the wind farm, while obtaining locally measured wind speeds, at least at the reference wind turbines during one or more test periods following the training period, estimate the wind speed for the monitored wind turbines during the test periods based on the measured wind speeds at the reference wind turbines, and the transfer function generated during the training period for the monitored wind turbine, obtain, power performance data for each of the monitored wind turbines in relation to the estimated wind speed, asses power performance by comparing the power performance data obtained during the test periods with the power performance data obtained during the training period.
Carsten Krogh Nielsen, Sven Jesper Knudsen
Filed: 9 Nov 16
Utility
Manufacture of wind turbine blades
28 Sep 20
A method of making a wind turbine blade is described.
Anton Bech
Filed: 22 Nov 16
Utility
Tower segment handling method and apparatus
28 Sep 20
This application relates to tower segment handling methods and apparatus and, in particular, to methods and apparatus for handling segments of steel wind turbine towers.
Gunnar K. Storgaard Pedersen
Filed: 1 Jan 19
Utility
Method and apparatus for weighing an elongate object
28 Sep 20
Method and apparatus for weighing an elongate object extending between a root end and a tip end thereof, said method including: providing a respective tip load measurement gauge and root load measurement gauge; and providing a suspending arrangement configured for suspending said elongate object from said tip load measurement gauge and from said root load measurement gauge; and suspending said object in a horizontal orientation; and recording a tip load and a root load from respective said load measurement gauges, said method being additionally characterised by: providing a weighing area; and fixing an inclinometer to said suspended blade and load gauge arrangement; and suspending said elongate object from said tip load gauge and from said root load gauge; and adjusting the horizontality of said elongate object in response to signals from said inclinometer prior to said step of recording said tip load and said root load.
Flemming Vind, Vijayasankar Irissappane
Filed: 28 Feb 17
Utility
Liquid containment assembly for a wind turbine
28 Sep 20
The application relates to a liquid containment assembly (200) for a wind turbine (10), comprising: a support (202) for supporting wind turbine equipment (220); and a flexible container (300) suspended beneath the support (202).
Morten Hedegaard Petersen, Steffen Hougaard, Erland Falk Hansen, Rasmus Dejgaard Jensen
Filed: 22 Aug 16
Utility
Device for mounting to a wind turbine blade and method of mounting the device
21 Sep 20
A device for attaching to a surface of a wind turbine blade is described.
Thomas Potentier
Filed: 6 Sep 17
Utility
Controlling a wind turbine during over-voltage ride through
14 Sep 20
Controlling a power converters during over voltage condition.
Ciprian Biris, Kent Tange, Duy Duc Doan, Torsten Lund, Gert Karmisholt Andersen
Filed: 26 Sep 18
Utility
Relating to reactive power control in wind power plants
14 Sep 20
A method for controlling a renewable energy power plant comprising a plurality of wind turbine generators, the method comprising: measuring a voltage level associated with a point of interconnection between a power transmission network and the power plant; calculating a reactive power exchange limit based upon the measured voltage level; and controlling the power plant so that the calculated reactive power exchange limit is not exceeded.
Nolan Dadang Caliao, Manoj Gupta, Mario Dante Jardiel, Janakiraman Sivasankaran
Filed: 26 Sep 17
Utility
Control of a wind turbine comprising multi-axial accelerometers
7 Sep 20
The invention relates to control of a wind turbine comprising a plurality of multi-axial accelerometers mounted at different positions in the nacelle and/or in a top portion of the tower.
Tobias Gybel Hovgaard, Johnny Nielsen, Peter Fogh Odgaard
Filed: 3 Apr 17
Utility
Method and system for determining the dynamic twist of a wind turbine blade
7 Sep 20
The present invention relates to a method and wind turbine for determining a dynamic twist of one or more blades.
Srikanth Narayanan
Filed: 21 Dec 15
Utility
Extreme load control
31 Aug 20
Methods for calculating a maximum safe over-rated power demand for a wind turbine operating in non-standard conditions include the steps of determining a value indicative of a risk of exceeding an ultimate design load during operation in a standard operating condition, and establishing a maximum over-rated power demand corresponding to a maximum power that the turbine may produce under the non-standard operating condition without incurring an increased risk of exceeding the ultimate design load, with respect to operation in the standard condition.
Chris Spruce
Filed: 21 Jun 16
Utility
Rotating transformer and inductive coupling
31 Aug 20
Aspects of the present disclosure are generally directed to using a rotary transformer to transfer power for a wind turbine generator.
Søren Viisholm Trankjær, Lars Helle, Torben Petersen
Filed: 15 May 17
Utility
Control of a multi-rotor wind turbine system using a central controller to calculate local control objectives
24 Aug 20
The present invention relates to control of a wind turbine system comprising a plurality of wind turbine modules mounted to a common support structure, i.e. to control of a multi-rotor wind turbine system.
Erik Carl Lehnskov Miranda, Tobias Gybel Hovgaard
Filed: 21 Mar 16
Utility
Wind turbine nacelle structure
24 Aug 20
A wind turbine includes a nacelle which houses components including a generator connected to a rotor.
Kristoffer Isbak Thomsen
Filed: 23 Mar 15
Utility
Rotor restraining and rotating apparatus and method for wind turbines
17 Aug 20
Rotor restraining and rotating apparatus and methods for a wind turbine (1) are described.
Kristoffer Isbak Thomsen, Thomas Møller Christiansen
Filed: 1 Oct 17