494 patents
Page 19 of 25
Utility
Pitch adjustment cylinder for adjustment of a pitch angle of a blade of a wind turbine
19 Jan 21
Pitch cylinders for adjusting a pitch angle of a blade, methods of assembling pitch cylinders, and the use of pitch cylinders in wind turbines are disclosed.
Lasse Køgs Andersen, Erik Garde, Simon Kabus, Jesper Lykkegaard Neubauer
Filed: 30 Nov 17
Utility
Wind turbine nacelle comprising a rear frame structure with flexible joints
19 Jan 21
A nacelle of a wind turbine includes a rear frame structure (1), the rear frame structure (1) having a plurality of truss members (2), and a plurality of joints (3), each joint (3) interconnecting ends of at least two truss members (2).
Kristoffer Isbak Thomsen, Anders Haslund Liingaard
Filed: 9 Mar 17
Utility
Dynamic controlled wind turbine shutdown
12 Jan 21
A method is provided for controlling the shutdown of a wind turbine of the type having a rotor, the rotor including one or more wind turbine blades.
Fabio Caponetti, Keld Hammerum, Jesper Lykkegaard Neubauer
Filed: 14 Aug 17
Utility
Transport frame for a wind turbine blade
12 Jan 21
A transport frame having a longitudinal, lateral and upright extent for receiving a tip portion of a wind turbine blade is disclosed.
Michael Kastrup, Lucia Quintana, Adrian Botwright, Troels Vahle, Martin Damm, Kristoffer Lolk Fredriksen, Carsten Jasper
Filed: 23 Dec 16
Utility
Method for monitoring and assessing power performance changes of a wind turbine
4 Jan 21
Monitoring and assessing power performance changes of one or more wind turbines of a wind farm.
Sven Jesper Knudsen, Carsten Krogh Nielsen
Filed: 8 Nov 16
Utility
Lifting frame for a wind turbine blade
4 Jan 21
Lifting yoke and method; the lifting yoke configured for connecting to, and lifting, a wind turbine blade transport frame, said yoke being generally rectangular and comprising four corner posts connected by struts; each corner post being configured for internally receiving therein an upwardly oriented locating finger atop a said transport frame shoulder; said corner post having a housing enclosing an internal space and extending between a lower foot face and a top; said corner post having, at said lower foot face, an aperture dimensioned to receive a said locating finger into said internal space; said corner post further comprising guide surfaces enclosed within said housing and spaced apart to define a locking space and configured to snugly receive a said locating finger; each guide surface comprising a locking aperture; wherein a movable locking element is configured to engage both said locking apertures to thereby bridge said locking space; said locking element being configured to engage a lifting point at said locating finger; said movable locking element constituting the primary lifting element of said lifting yoke.
Michael Kastrup, Adrian Botwright, Troels Vahle, Lucia Quintana, Jacob Antonsen, Martin Damm, Kristoffer Lolk Fredriksen
Filed: 22 Dec 16
Utility
Relating to lightning protection systems for wind turbine blades
4 Jan 21
A blade tip assembly for a wind turbine blade, comprising a conductive blade tip module, a receptor arrangement spaced from the conductive blade tip module, a coupler that electrically couples the conductive blade tip module to the receptor arrangement and an insulating member that insulates the coupler.
Daniel Whitehouse, Richard Baker
Filed: 14 Oct 14
Utility
Electrical isolation mounting of electrical machine stator
4 Jan 21
The present invention relates to a wind turbine with an electrical machine wherein said electrical machine comprises a stator (702) with one or more electrical winding(s) (704), said electrical winding(s) being arranged to be connected to an electrical grid (760) by at least one cable (740) with at least one phase conductor (746), the at least one cable (740) comprises at least one return path (744) to conduct leakage currents, and at least one electrical shield (745), the stator being electrically isolated from a stator housing (701).
Lars Dyred Simonsen, Peter Mongeau
Filed: 27 Nov 17
Utility
Wind turbine blades
28 Dec 20
A method of making a wind turbine blade having at least one pultruded strip of fibrous reinforcing material integrated with a shell of the blade is described.
Christopher Boon
Filed: 17 Sep 13
Utility
Turning stand for a rotor hub of a wind turbine and method for turning the rotor hub
28 Dec 20
The invention provides a turning stand for turning a rotor hub from a position having its prospective axis of rotation oriented vertically to a position having its prospective axis of rotation oriented inclined or transversally to a vertical orientation.
Per Larsen Barklin, Gunnar K. Storgaard Pedersen, Aksel Petersen, Kurt Jensen
Filed: 27 Aug 14
Utility
Methods and systems for generating wind turbine control schedules
21 Dec 20
A method of generating a control schedule for a wind turbine is provided, the control schedule indicating how the turbine maximum power level varies over time, the method comprising: receiving input indicative of the maximum number of times that each of one or more turbine components are to be replaced over the remaining lifetime of the turbine; determining a value indicative of the current remaining fatigue lifetime of the turbine, or one or more of the turbine components, based on measured wind turbine site and/or operating data; and varying a parameter of an initial predefined control schedule that specifies how the turbine maximum power level varies over time.
Chris Spruce, Kelvin Hales, Judith Turner
Filed: 28 Jun 16
Utility
Wind turbine blade having a lightning tip receptor
21 Dec 20
A wind turbine blade comprising a main blade portion having a longitudinal axis that extends between a root end and a tip end, wherein a leading edge and a trailing edge extend between the root end and the tip end, and a conductive blade tip module mounted to the tip end of the main blade portion; wherein the tip end is truncated and has a blade tip interface that defines an outer edge, and wherein the blade tip module is configured to fit against the blade tip interface such that a lip of the blade tip module overlaps the outer edge of the blade tip interface.
Jakob Hjorth Jensen, Lasse Lykkegaard
Filed: 26 Jul 17
Utility
Wind turbine blade manufacturing method or apparatus
14 Dec 20
A positioning jig (25) and a method for manufacturing a wind turbine blade comprising moulding a first and a second blade shell portion in respective first and second mould tools; positioning a shear web (15) in a spanwise direction within a first shell portion (20) in a said first mould tool (7); anchoring said shear web in position in said first shell portion; and closing said second shell portion (21) over said first shell portion to thereby generate a wind turbine blade shell defining a chordwise extent between a in trailing edge and a leading edge thereof, and a spanwise extent between a root region and a tip thereof and wherein said shear web, bordered by a first (24) and a second longitudinal edge, extends in a thickness direction of said blade; said method further comprising: providing a positioning jig; and securing said positioning jig to said shear web, prior to its introduction into said first shell portion and guiding said shear web into its predetermined standing position in said first shell portion, with its first longitudinal edge adjacent said first shell portion, by engaging a reference surface (33) of said positioning jig with a locating surface (12) at said first mould tool thereby to bring said positioning jig into its guide position with said shear web in its predetermined standing position; and removing said positioning jig from said first mould tool prior to closing said second shell portion over said first shell portion.
Steve Wardropper, Stephen Sandercock
Filed: 14 Sep 16
Utility
Wind turbine power generation system
14 Dec 20
A wind turbine power generation system comprising a rotor shaft coupled to an electrical generator which generates a power output at a first AC voltage level; a converter system that converts the power output of the generator at the first AC voltage level to a converter power output at a second AC voltage level; a transformer that converts the converter system power output at the second AC voltage level to a generation system power output at a third AC voltage level; wherein the converter system comprises a machine-side converter, a line-side converter and a DC-link.
Philip Carne Kjær
Filed: 2 May 16
Utility
Control system for modular multilevel converter
7 Dec 20
A power conversion system for a wind turbine generator, comprising a machine-side converter having an AC voltage input from a generator and a DC voltage output to a DC link, wherein the machine-side converter is a modular multi-level converter comprising one or more converter legs corresponding to a respective one or more electrical phases of the generator, each of the converter legs comprising a plurality of converter cells, the system further comprising: a converter control module which provides the machine-side converter with a gate signal, and an electrical frequency estimation module configured to estimate the mean electrical frequency of the generator; wherein the gate signal has at least one mean switching frequency corresponding to at least one electrical phase of the generator; wherein the converter control module is configured to modulate the mean switching frequency of the gate signal in dependence on the mean electrical frequency of the generator.
Ciprian Biris, Duy Duc Doan, John Godsk Nielsen
Filed: 28 Nov 17
Utility
Cabinet with pressure relief means
30 Nov 20
A cabinet comprising an outer wall which encapsulates an internal space comprising electronic components, the outer wall having a rupture line forming a release wall portion which by rupturing of the rupture line in response to an increased pressure in the internal space can be released and thereby define an opening forming arc-vent for the internal space.
Kenneth G. Hansen, Hans Christian Bisgaard-Clausen
Filed: 26 Sep 17
Utility
Operating a wind turbine generator during an abnormal grid event
30 Nov 20
Aspects of the present invention relate to a method for controlling an amount of power to be delivered from a wind turbine generator to a power grid during an abnormal power grid event, the method comprising the steps of detecting an abnormal power grid event; controlling an active current delivered to the power grid in response to a measured or determined total active current; and controlling a reactive current delivered to the power grid in response to a measured or determined total reactive current.
Ciprian Biris, Gert Karmisholt Andersen, Uffe C. Merrild, Leif Svinth Christensen
Filed: 15 May 17
Utility
Wind turbine blade having a trailing edge flap
9 Nov 20
A wind turbine blade includes a trailing edge flap having a flap part protruding from the trailing edge on the pressure side of the blade.
Daniel Whitehouse, Jagjit Bhangal
Filed: 8 Oct 15
Utility
Rotor lock system for a wind turbine
9 Nov 20
A locking unit (24) for a rotor lock system (20) of a wind turbine (1), the locking unit (24) comprising: a locking shaft (34) that is slidably movable within a barrel (30) under the influence of an actuator (32); and an angular drive arrangement (48, 50) which is configured to enable angular movement of the locking shaft (34) about a longitudinal axis as the locking shaft (34) is moved linearly within the barrel (30) by the actuator (32).
Gerner Larsen
Filed: 16 Jul 17
Utility
Determination of wind turbine configuration
9 Nov 20
Determination of Wind Turbine Configuration The present invention relates to a method and computer system for determining a configuration of a wind turbine of a given wind turbine type, the method comprising the steps of: storing in a database a plurality of combinations of physical and control parameters of the wind turbine that can be varied; determining a plurality of wind flow characteristics at a target location; applying a function which defines a relationship between a performance parameter, a fatigue life estimation, the combination of physical and control parameters and the plurality of wind flow characteristics, to at least some of the plurality of combinations in the database to determine values of the performance parameter and the fatigue life estimation for those combinations; and selecting one of the combinations of physical and control parameters as the configuration of the wind turbine for the target location on the basis of the performance parameter and fatigue life estimation values.
Kelvin Hales, Chris Spruce
Filed: 22 Nov 15