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Vestas Wind Systems A s patents


Recent patent applications related to Vestas Wind Systems A s. Vestas Wind Systems A s is listed as an Agent/Assignee. Note: Vestas Wind Systems A s may have other listings under different names/spellings. We're not affiliated with Vestas Wind Systems A s, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "V" | Vestas Wind Systems A s-related inventors


 new patent  Overboosting techniques for wind power plant

A method and control arrangement are disclosed for controlling power output of a wind power plant (WPP) including a plurality of wind turbine generators (WTGs). The method includes determining that overboosting is required for the WPP to meet a power demand at the WPP, and determining, for at least a... Vestas Wind Systems A s

 new patent  Rotational positioning system in a wind turbine

A rotational positioning system in a wind turbine is provided that comprises a driven part, a plurality of positioning drives coupled to the driven part, a plurality of sensors each arranged to sense a load parameter indicative of the load of the respective positioning drive, and a load controller connected... Vestas Wind Systems A s

 new patent  Method of calibrating load sensors of a wind turbine

A method of calibrating load sensors of a wind turbine, and a wind turbine for such load sensor calibration, are disclosed. The wind turbine comprises a rotor, a plurality of rotor blades, and a plurality of load sensors associated with the rotor blades. While the rotor is rotating, at least... Vestas Wind Systems A s

Wind turbine power generation system

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... Vestas Wind Systems A s

Wind turbine converter control

A method of controlling a full-scale converter system in which both the grid-side inverter unit and the generator-side inverter unit have a series-connection of parallel inverters and form a generator-side and grid-side voltage-center-point at a voltage level between the inverters connected in series. The voltage-center-points are electrically connected by a... Vestas Wind Systems A s

Controlled inrush current for converter-connected grid filter

A method, converter arrangement, and controller are disclosed for connecting an output of a converter with an electrical grid to control inrush currents into a grid filter assembly connected with the output of the converter, the electrical grid carrying an alternating current (AC) signal having one or more phases. The... Vestas Wind Systems A s

Fault tolerant wind turbine converter system

In a full-scale converter system both the grid-side inverter unit and the generator-side inverter unit have a series convection of parallel inverters and form a generator-side and grid-side voltage-center-point at a voltage level between those of the inverters connected in series. The voltage-center-points are electrically connected by a center-line conductor... Vestas Wind Systems A s

Control of a multi-rotor wind turbine system using a central controller to calculate local control objectives

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. The invention discloses a control system for a multi-rotor wind turbine system which comprises local controllers operable... Vestas Wind Systems A s

Method for handling an over voltage ride through event

The present invention relates to a method for operating a doubly fed induction generator wind power facility during an OVRT event, said the wind turbine facility being adapted to inject active and/or reactive current into an associated grid, the method comprising the steps of determining the occurrence of an over... Vestas Wind Systems A s

Damping oscillations in a wind turbine

Embodiments herein describe using a tower damping system to reduce oscillations in a wind turbine. To do so, the dampening system may use a metric that is decoupled from the activation strategy in order to control the blade pitch and avoid or mitigate feedback loops. In one embodiment, the dampening... Vestas Wind Systems A s

Power ramping a turbine from a low-power mode

Embodiments herein describe varying the rotor speed based on the current wind speed when operating in a low power mode. Generally, as the wind speed increases above the rated wind speed (i.e., the wind speed at which the turbine is capable of producing its rated or maximum output power), the... Vestas Wind Systems A s

Method for improving large array wind park power performance through active wake manipulation reducing shadow effects

Embodiments of the present invention provide methods and apparatus for increasing turbulent mixing in the wake of at least one wind turbine. Doing so, increases efficiency of a wind turbine located in the wake by transferring energy to the wake that was lost when the wind passed through the upwind... Vestas Wind Systems A s

Access panel for a wind turbine tower and securing same

The invention relates to a wind turbine tower access panel, which panel is removably fixable at a service aperture in a tower wall to thereby close said aperture; said access panel being generally planar and extending radially about an axis normal thereto, said access panel comprising a set of two... Vestas Wind Systems A s

A wind turbine comprising two or more rotors

A multirotor wind turbine (1) comprising a tower structure with a main tower part (2) and at least two arms (3), each arm (3) extending away from the main tower part (2) along a direction having a horizontal component. Two or more rotors (4) are mounted on the tower structure... Vestas Wind Systems A s

A wind turbine with a rotor comprising a hollow king pin

A wind turbine (11) comprising a tower structure (12, 13) and two or more rotors (1). Each rotor (1) comprises a hollow king pin (2) and a hub (4) carrying one or more rotor blades (14). The hollow king pin (2) is formed in a single cylindrical piece, and is... Vestas Wind Systems A s

Wind turbine access panel and securing same

The invention relates to an access panel configured for fixing to a service aperture in a wind turbine tower wall; wherein the access panel comprises a main panel and an adjacent sub-panel; the sub-panel comprising a bearing surface at an edge thereof; the main panel comprising a reference surface at... Vestas Wind Systems A s

Control system for damping structural vibrations of a wind turbine system having multiple rotors

A wind turbine system comprising a plurality of wind turbines mounted to a support structure including a tower, wherein each of the plurality of wind turbines includes a rotor and a power generation system driven by the rotor, and at least one of a rotor blade pitch adjustment means and... Vestas Wind Systems A s

Partial and full load controllers of a wind turbine

The invention relates to a method for controlling a wind turbine in partial and full load. In order to avoid disadvantages of switching between partial and full load controllers, the wind turbine control system is configured so that both the partial and full load controller provides control action during partial... Vestas Wind Systems A s

Integral fluid cooling of electrical machine

The present invention relates to a laminated stator stack for an electric machine comprising, a plurality of stator teeth and stator slots, for receiving at least one electrical conductor, at least one axial coolant duct, at least one outwards radial coolant duct and at least one inwards radial coolant duct,... Vestas Wind Systems A s

Wind turbine tower

A wind turbine tower configured to support a wind turbine nacelle and a rotor, and with a tower wall of an inner surface and an outer surface. The tower is tethered by a number of cables, each cable extending between a first end anchored to an anchoring element and an... Vestas Wind Systems A s

A operating a wind turbine

The present invention provides a method of operating a wind turbine. The wind turbine comprises at least one rotatable blade. The method comprises the steps of providing a load sensor configured to generate a load signal representing loading on the blade, generating a first load signal when the blade is... Vestas Wind Systems A s

Anti-oscillation apparatus and technique for securing wind turbine blades against oscillations

The invention relates to a wind turbine blade oscillation preventer comprising an aperture and a sleeve and having a peripheral extent and a longitudinal extent, the preventer being configured for removable application over a wind turbine blade and configured to extend longitudinally thereover and peripherally thereabout; the preventer having a... Vestas Wind Systems A s

Monitoring of a dc-link of a split wind-turbine-converter system

A method of monitoring a split wind-turbine-converter system with at least one generator-side converter and at least one grid-side converter arranged at distant locations, and a DC-link in the form of an elongated conductor arrangement with at least one positive and at least one negative conductor. The impedance of the... Vestas Wind Systems A s

Wind turbine nacelle

A wind turbine nacelle configured for mounting on a wind turbine tower and for supporting a rotor assembly, the nacelle comprising at least a first and a second nacelle module. The first nacelle module comprises a first frame structure and a main bearing system for a main shaft of the... Vestas Wind Systems A s

Over-rating control of a wind turbine generator

A method is disclosed for controlling a wind turbine generator to provide power above a rated level. The wind turbine includes one or more electrical components that conduct current from the internal generator to supply the external grid. The control method calculates the maximum current that the electrical components can... Vestas Wind Systems A s

Method and system for determining the dynamic twist of a wind turbine blade

The present invention relates to a method and wind turbine for determining a dynamic twist of one or more blades. One or more first signals are received from a first wireless sensor attached to a blade of a wind turbine and a first angle is determined based on the received... Vestas Wind Systems A s

Dc-link reference voltage determination for wind turbine converter systems

A method of setting a reference DC-link voltage of a wind-turbine converter system is provided. At least at least one DC voltage demand from at least one generator-side inverter and at least one DC voltage demand are received from at least one grid-side inverter. A generator-side DC voltage demand value... Vestas Wind Systems A s

A lightning current transfer unit for a wind turbine

A lightning current transfer unit for a wind turbine, the wind turbine comprising a first part and a second part being rotatable relative to each other, wherein the lightning current transfer unit is arranged to provide electrical contact between the first and second parts, the lightning current transfer unit comprising:... Vestas Wind Systems A s

Improvements relating to wind turbines

A method of determining the shape of at least part of a wind turbine blade during operation of the wind turbine, the method comprising measuring first and second values of acceleration at one or more locations on the blade, the first and second values of acceleration being in substantially mutually... Vestas Wind Systems A s

Tower segment handling method and apparatus

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. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another. The... Vestas Wind Systems A s

Method of controlling active power generation of a wind power plant and wind power plant

In various embodiments of the present disclosure, there is provided a method of controlling active power generation of a wind power plant coupled to a power grid, the wind power plant including a power plant controller for controlling a plurality of wind turbine generators. In an embodiment, the method includes... Vestas Wind Systems A s

Power ramp rate limiter for wind turbines

The invention relates to a method for limiting structural loads in a wind turbine in situations where the power produced by the wind turbine is increased or decreased. The limitation of structural loads is achieved by restricting the power ramp rate, i.e. the rate of change of increases or decreases... Vestas Wind Systems A s

Determination of wind turbine configuration

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... Vestas Wind Systems A s

Wind-turbine converter control for modular string converters

A wind turbine converter system with a rectifier and an inverter and a converter controller has at least first and second converter strings. The converter system is controlled by a master-converter controller and a slave-converter controller. The master-converter controller controls the first converter string and the slave-converter controller controls the... Vestas Wind Systems A s

Curtailed operation of a wind power plant by deactivation of wind turbines

The invention relates to a method for operating a group of wind turbines in a wind power plant coupled to a utility grid, comprising the steps of determining that a wind turbine should be deactivated in response to receiving a power curtailment command from the grid, and retrieving data from... Vestas Wind Systems A s

11/09/17 / #20170321660

A estimating a wind speed including calculating a pitch angle adjusted for blade torsion

A method for estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A blade torsion contribution, representing torsion introduced in the wind turbine blades, is derived, based... Vestas Wind Systems A s

11/09/17 / #20170321756

Tower section and a a tower section

Indicator device (90), for indicating proper alignment of bolt-and-nut holes of two abutting flanges (72,72′) of two tower sections (2,5) of a wind turbine tower structure (1), the indicator device (90) comprising a connector (122) for connecting the indicator device (90) to an inner face (71) of one of the... Vestas Wind Systems A s

11/02/17 / #20170314533

Method for estimating a wind speed in a stable manner

A method for iteratively estimating a wind speed at a wind turbine is disclosed, said wind turbine comprising a rotor carrying a set of wind turbine blades, each wind turbine blade having a variable pitch angle. A minimum tip speed ratio, λmin, is derived, based on an obtained pitch angle,... Vestas Wind Systems A s

11/02/17 / #20170314534

Method for operating a wind power plant in a weak grid environment and a wind power plant

In various embodiments of the present disclosure, there is provided a method of operating a wind power plant in a weak grid environment in order to achieve desired system stability criteria and to support an electrical grid during small disturbances or faults, the wind power plant being coupled to an... Vestas Wind Systems A s

11/02/17 / #20170314535

Nacelle for a wind turbine, the nacelle comprising side units

A nacelle for a wind turbine and a method for erecting a wind turbine are disclosed. The nacelle comprises a main unit arranged to be connected to a wind turbine tower, via a yawing arrangement, and at least one side unit mounted along a side of the main unit in... Vestas Wind Systems A s

10/12/17 / #20170292498

A power plant controller for generating a power reference to wind turbine generators

The invention relates to a power plant controller for controlling wind turbine generators. More particularly, the invention relates to a method for compensating data obtained from measurements at a connection point to the grid in case of a communication failure where communication of such data is lost or becomes unreliable.... Vestas Wind Systems A s

09/28/17 / #20170276121

Tool and a moving a wind turbine drivetrain component

The invention includes a tool for moving a drivetrain component in a nacelle of a horizontal axis wind turbine, the nacelle comprising a nacelle structure, the component being connected, in operation of the wind turbine, to a rotor of the wind turbine, the tool comprising at least one carrier adapted... Vestas Wind Systems A s

09/14/17 / #20170263534

Heat sink for cooling of power semiconductor modules

A heat sink for cooling at least one power semiconductor module, and that includes a basin for containing a cooling liquid. The basin has a contact rim for receiving the base plate and that includes a surface that is sloped inwards to the basin.... Vestas Wind Systems A s

09/14/17 / #20170264188

Random pulse width modulation for power converters

A power generation system, wind turbine, and method of pulse width modulation (PWM) for power converters are disclosed. The method generally includes generating a substantially random distribution of timing values, applying a filter to the random distribution to produce a modified random distribution, and delivering PWM ing signals based on... Vestas Wind Systems A s

09/07/17 / #20170254794

A contaminant sensor for detecting magnetizable contaminants in lubricant flow

A contaminant sensor (1) for detecting magnetizable contaminants (7) present in a lubricant flow is disclosed. A permanent magnet (3) is arranged movably inside a sensor housing (2). A sensor element (6, 11, 13), e.g. in the form of a distance sensor (6) or a pressure sensor (11), is arranged... Vestas Wind Systems A s

08/31/17 / #20170248123

Control of wind turbines

The present invention relates to a method and control system comprising at least one cable temperature sensor for measuring cable temperature values for at least one power collection cable (50, 55) connected to a wind turbine (20) and a controller (110) arranged to generate and output an overrating control signal... Vestas Wind Systems A s

08/31/17 / #20170248124

Control of a wind turbine based on operational trajectory validation

The present invention relates tocontrol of wind turbines based on predicted operational trajectories. A control system for a wind turbineis described wherea main controller calculating one or more predicted operational trajectories and a safety controller validates at least one of the one or more predicted operational trajectories. The control system... Vestas Wind Systems A s

08/31/17 / #20170248126

Hinged tower segments and transport method

This application relates to hinged tower segments and transport methods, and particularly to methods and apparatus for transporting and storing hinged segments of steel wind turbine towers. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one... Vestas Wind Systems A s

08/24/17 / #20170241153

Hinged tower segments and transport method

A method for moving a wind turbine component (42) relative to a wind turbine (16) having a tower (18) with a door (26) for closing off an opening (90) through the tower (18) includes removably positioning a transport system (40) relative to the wind turbine (16), the transport system (40)... Vestas Wind Systems A s

08/24/17 / #20170241400

Wind turbine blade having a trailing edge flap

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. The flap part has a first section and a second section each having an upstream surface arranged to face an oncoming airflow in use. The... Vestas Wind Systems A s

08/24/17 / #20170241401

Improvements relating to wind turbine blade manufacture

Method of bonding a shear web (50) to a wind turbine blade shell (75) and the obtained blade, wherein the shear web (50) comprises a web and a mounting flange (56) oriented transverse to the web (50). The method involves: providing a seal (66, 68) on the mounting flange (56)... Vestas Wind Systems A s

08/24/17 / #20170241404

Improvements relating to the determination of rotor imbalances in a wind turbine

A method and system for improving the balance of a rotor in a wind turbine, including; determining blade load data associated with a selected rotor blade pair; determining, based on the blade load data, pitch imbalance data associated with the selected rotor blade pair, wherein the pitch imbalance data associated... Vestas Wind Systems A s

08/24/17 / #20170241405

Turbine over-rating using turbulence prediction

An apparatus and method is disclosed for over-rating a wind turbine using turbulence prediction. Weather forecast information is used to determine whether there is a risk of turbulent conditions occurring at the site of the wind turbine. The wind turbine is over-rated if turbulent conditions are not predicted, and conversely... Vestas Wind Systems A s

08/24/17 / #20170241409

Verification of wind turbine nacelle yaw position sensor

The invention relates to techniques for verifying a nacelle yaw position sensor installed on a wind turbine and for taking restorative action to control the nacelle yaw position. The invention relates to a method performing the comprising determining a first absolute wind direction signal associated with the first wind turbine;... Vestas Wind Systems A s

08/24/17 / #20170241535

Repairing a gear part in a wind turbine

A method for repairing a gear part (1) in a wind turbine, in particular repairing damaged teeth of a toothed rim (2). A repair cavity (10) is formed by removing material, including one or more damaged teeth, from the gear part (1) by drilling one or more holes through the... Vestas Wind Systems A s

08/24/17 / #20170241860

Fatigue testing of a wind turbine blade

The application relates to an apparatus (100) for fatigue testing a wind turbine blade, and to a system and method using such an apparatus (100). The apparatus (100) comprises a base (110) for supporting a first end (12) of the wind turbine blade (10), and an edgewise actuator assembly (120).... Vestas Wind Systems A s

08/24/17 / #20170244251

Reactive power support from wind turbine facilities

The present invention relates to a method for operating a wind power facility in order to provide reactive power support to a power grid, the method comprising the step of increasing an amount of reactive power injected into the power grid, decreasing an amount of active power injected into the... Vestas Wind Systems A s

08/24/17 / #20170244297

Method and test tool for adjusting brush holders in slip ring systems

The invention relates to a method of adjusting a brush holder (41) of a slip ring and brush assembly comprising at least one slip ring (50) with a radius of curvature R. With the method a test tool (80) is used to simulate a brush in the brush holder with... Vestas Wind Systems A s

08/24/17 / #20170244347

A control system for a wind turbine generator

The invention relates to a control system for a wind turbine generator, WTG. The control system defines reactive limits for a reactive power reference for the WTG. The reactive limits are defined as a function of a physical parameter, e.g. the output voltage of the WTG. In case the reactive... Vestas Wind Systems A s

08/17/17 / #20170234299

A wind power plant with reduced losses

The present invention relates to a method for controlling a wind power plant, the wind power plant comprising a plurality of wind turbine generators, each wind turbine generator comprising at least one power converter for providing active power and/or reactive power to an electrical grid, wherein the method is determining... Vestas Wind Systems A s

08/17/17 / #20170234300

Improvements relating to the determination of rotor imbalances in a wind turbine

A wind turbine comprising a tower, a rotor including a plurality of blades, an electrical generator operatively coupled to the rotor, and a control system including an active damping module configured to monitor oscillatory motion of the wind turbine and to output a damping demand signal to damp the oscillatory... Vestas Wind Systems A s

08/10/17 / #20170226988

A control system for wind turbines for reducing disturbances in an electrical grid

The invention relates to a method for wind turbine generators for reducing electrical disturbances in the form of power variations which are caused by damping controllers arranged the compensate structural oscillations by inducing shaft torque variations. The shaft torque variations are generated by imposing corresponding variations in a generator set-point,... Vestas Wind Systems A s

08/10/17 / #20170226989

Control of a wind turbine with a fault condition

The present invention relates to control of wind turbines in a situation where a fault condition is detected. Control of a wind turbine is described where a control trajectory and a safe-mode trajectory are calculated based on the current operational state of the wind turbine. If the fault condition is... Vestas Wind Systems A s

08/10/17 / #20170229937

Choke for interleaved switching

When performing interleaved switching, a power generation system may include chokes for filtering out a high-frequency ripple. However, because the chokes are interconnected, a common mode current can flow between the different parallel converters. Instead of connecting all the outputs of a parallel converter to the same choke, the same... Vestas Wind Systems A s

08/03/17 / #20170218918

Improvements relating to reinforcing structures for wind turbine blades

A wind turbine blade including an elongate reinforcing structure, the reinforcing structure comprising a plurality of strips of fibre-reinforced polymer arranged into a stack structure, and at least one adjacent pair of the plurality of strips including an infusion promoting layer, wherein the infusion promoting layer is a fabric comprising... Vestas Wind Systems A s

Patent Packs
07/27/17 / #20170211543

Composite component having a safety edge

A composite component (130) such as a shear web for a wind turbine blade is described. The component comprises a moulded laminate (44) formed from one or more fibrous layers (40) integrated by resin and defining a laminate edge (48). An edging strip (60) is located adjacent to the laminate... Vestas Wind Systems A s

07/27/17 / #20170211546

A controlled shutdown of wind power facility

The present invention relates to a method for shutting down a wind power facility, said wind power facility comprising a power generator, a power converter comprising generator side and grid side converters being separated by an intermediate DC circuit, and power dissipation or power storage means being operatively connected to... Vestas Wind Systems A s

06/29/17 / #20170184077

Active promotion of wind turbine tower oscillations

The invention relates to a method for determining dynamic parameters associated with damping properties of a wind turbine. The method involves active excitation of tower oscillations by adjusting the pitch or rotor torque. After the active excitation, the parameters can be determined from the passive decay of the excited oscillations.... Vestas Wind Systems A s

06/22/17 / #20170175716

A wind turbine with a tower-mounted heat exchange structure

A wind turbine with a tower; a nacelle supported by said tower; at least one unit to be cooled and arranged in the tower or the nacelle; a tower mounted heat exchange structure arranged outside the nacelle and tower; and a circuit facilitating a flow of a fluid medium between... Vestas Wind Systems A s

06/15/17 / #20170165923

A roll of structural material, it's making and a making a wind turbine blade

A roll (16) of structural material for use in the manufacture of large composite structures such as wind turbine blades is described. The roll (16) comprises an elongate stack of structural layers (10) fastened together and wrapped around a reel (14). The reel (14) comprises a plurality of mutually spaced... Vestas Wind Systems A s

06/15/17 / #20170165924

Wind turbine components

A method of making a wind turbine component comprises providing a mould (7), placing a fibrous pre-form (60) in the mould (70), admitting resin into the mould and curing the resin. The method further comprises heating (58) the fibrous pre-form before placing the pre-form in the mould.... Vestas Wind Systems A s

06/08/17 / #20170159646

Stacking wind turbine blades for sea transport

The present invention relates to a method of stacking wind turbine blades for sea transport. An improved way of arranging blades for sea transport, where less structural framework is needed, would be advantageous. Structural framework not only causes additional cost, but also takes up additional time for arranging the blades... Vestas Wind Systems A s

06/01/17 / #20170151711

Improvements relating to wind turbine blade manufacture

A method of making a wind turbine blade, and the turbine blade resulting form the process, is described in which correct alignment of the shear webs (42a, 42b) upon mould (30) closing is ensured. The method involves providing a first half shell (32a) and a second half shell (32b) to... Vestas Wind Systems A s

06/01/17 / #20170152836

Wind turbinecontroller with pitch feedback control loop in partial load

The present invention relates to control of the power output of wind turbine generator that operates in derated mode to generate a produced power output level lower than an available power level. A pitch system 48 sets the blade pitch of a rotor to a pitch value based on the... Vestas Wind Systems A s

06/01/17 / #20170152838

Wind turbine nacelle structure

A wind turbine is presented comprising a nacelle (2), mounted on a tower (3), the nacelle housing components including a generator (5) connected to a rotor (4), the nacelle comprising a cover (21) and a skeleton (22) to which the cover is attached, the skeleton comprising a plurality of connected... Vestas Wind Systems A s

06/01/17 / #20170152839

Lightning current transfer arrangement of a wind turbine

A lightning current transfer arrangement for a wind turbine enables lightning current and electrostatic discharge current to be discharged between first and second parts of the wind turbine that are rotatable relative to each other. The lightning current transfer arrangement comprises a current transfer unit electrically coupled to the first... Vestas Wind Systems A s

05/25/17 / #20170145987

Wind turbine blade manufacture

A method of making a root end of a wind turbine blade is described. The root end has a root end surface that connects to a wind turbine hub via a pitch bearing when the blade is installed on a wind turbine, and the method comprises providing a plurality of... Vestas Wind Systems A s

05/04/17 / #20170122289

Control of wind turbines in response to wind shear

A wind turbine is controlled in response to an estimate of vertical and/or horizontal wind shear. A tilt moment is estimated from flapwise and edgewise blade bending moments, azimuth and blade pitch positions and used to estimate vertical wind shear. A yaw moment is also estimated from flapwise and edgewise... Vestas Wind Systems A s

05/04/17 / #20170122292

Tower section production process

The application relates to wind turbine tower section production methods and in particular to methods of manufacturing a plurality of elongate tower segments for forming a wind turbine tower section, the tower section constructed from a plurality of elongate tower segments connected along their respective longitudinal edges. The tower section... Vestas Wind Systems A s

05/04/17 / #20170122297

An equipment compartment frame of a power control module of a wind power turbine and methods related thereto

The invention relates to an equipment compartment frame of a power control module of a wind turbine. The frame includes a polygonal beam structure (17) in one plane and a plurality of standing beams (18) attached to the polygonal beam structure (17) at at least some of the corners of... Vestas Wind Systems A s

Patent Packs
04/27/17 / #20170114779

Liquid-cooled electrical apparatus

An inductor 1 for connecting a wind turbine generator to the electricity grid is mounted within a housing 2, and the coils of the inductor 1 are cooled by means of cooling plates 3 located within the coils, and in which are formed tubular conduits. Coolant liquid is supplied to... Vestas Wind Systems A s

04/20/17 / #20170107977

Method for installation of a power control module in a wind power unit tower and an aggregate component

The invention relates to a method for installation of a power control module in a tower for a wind turbine. The method includes, providing a power control module (101) and providing a tower section (201). According to the invention the following steps are included in the mentioned sequence. a) providing... Vestas Wind Systems A s

04/06/17 / #20170096983

Wind turbine with over-rating control

A method is disclosed for controlling a wind turbine generator to provide power above a rated level based upon operational atonal constraints. The wind turbine includes an over-rating controller that calculates an over-rating power demand in response to the values of one or more operating parameters, and communicates this demand... Vestas Wind Systems A s

04/06/17 / #20170098984

A repairing an electric generator

The invention relates to a method for repairing an electric generator, preferably in a wind turbine generator (WTG), the electric generator (10) having a stator and a rotor (30) rotatably mounted relative to the stator. The method of repairing the electric generator provides a rotor connecting ring (40) with a... Vestas Wind Systems A s

03/16/17 / #20170074245

Control a wind turbine

The invention relates to a method of controlling a wind turbine, the wind turbine comprising wind turbine blades attached to a rotor hub and a control system for pitching the blades relative to the rotor hub. The method comprises determining a wind speed and providing a normal pitch mode of... Vestas Wind Systems A s

03/09/17 / #20170067441

Hub for a wind turbine and a fabricating the hub

A hub for a wind turbine and a method for fabricating the hub are disclosed. The hub comprises a continuous shell forming a hollow body with a main shaft flange adapted to connect the hub to a main shaft, and one or more blade flanges, each blade flange being adapted... Vestas Wind Systems A s

02/23/17 / #20170051723

Active power boost during wake situation

The present invention relates to a method for operating a wind power plant in a wake situation, said wind power plant being connected to a power grid, the method comprising the steps of operating the wind power plant in a predetermined power mode of operation, terminating said predetermined power mode... Vestas Wind Systems A s

02/16/17 / #20170044734

Foundation for a wind turbine

The present invention provides a foundation for a wind turbine. To reduce set-up time and to allow complete alignment of the platform which carries the base flange of the tower construction, the invention provides a foundation with a cage structure having an upper stress distribution flange connected by a plurality... Vestas Wind Systems A s

02/09/17 / #20170037651

Alignment tool, the connection of wind turbine tower segments

The application relates to an alignment tool (200) for the alignment of a pair of vertical flanges for the connection of the longitudinal edges of adjacent segments of a cylindrical section of a wind turbine tower, and to a system and method utilising one or more such alignment tools (200).... Vestas Wind Systems A s

02/09/17 / #20170037830

Method and tool for assembling tower elements

Tooling and a method of using the tooling for aligning flanges of a wind turbine tower segment of a tower section to correct deformities that might otherwise prevent fasteners from passing through apertures of adjacent flanges to gather the segments into tower sections.... Vestas Wind Systems A s

02/02/17 / #20170030101

Tower segment handling method and apparatus

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. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another. The... Vestas Wind Systems A s

02/02/17 / #20170030102

Tower segment handling method and apparatus

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. The wind turbine tower comprises a plurality of cylindrical vertical tower sections, which in the finished tower are mounted on top of one another. The... Vestas Wind Systems A s

01/26/17 / #20170022966

A nacelle for a wind turbine generator including lifting apparatus

A nacelle for a wind turbine generator comprises a crane articulated on a base fixed to said nacelle. The crane includes a cantilevered telescopic boom, a principal winch with a lifting line and respective azimuth and elevation drive units for moving said boom in azimuth and in elevation relative to... Vestas Wind Systems A s

01/26/17 / #20170022972

Power-ramping pitch feed-forward

Embodiments of the present disclosure generally relate to apparatus and methods for preventing power dips associated with power ramping in wind turbines. One embodiment of the present disclosure provides a method for stabilizing power output in a wind turbine, which includes tracking a rate of change in an external reference,... Vestas Wind Systems A s

01/26/17 / #20170022977

Basic grid supervision of a wind power plant

The present invention relates to a method for supervision of an electrical measurement in a wind power plant, with a plurality of wind turbine generators, the method comprises, a) measuring a measurement of an electrical parameter in the wind power plant, b) determining a difference between the measurement and a... Vestas Wind Systems A s

01/26/17 / #20170025855

A wind power plant with improved rise time

The present invention relates to a method for controlling a wind power plant connected to an electrical grid, the wind power plant comprising at least one wind turbine generator and a power plant controller, the power plant controller comprising a signal controller for controlling an electrical parameter with a gain... Vestas Wind Systems A s

01/26/17 / #20170025858

Reconfiguration of the reactive power loop of a wind power plant

The present invention relates a method of controlling a wind power plant connected to an electrical grid, the wind power plant comprises a power plant controller (350), a plurality of wind turbine generators (1) and a STATCOM (230), with a STATCOM controller, comprises: controlling the plurality of wind turbine generators... Vestas Wind Systems A s

01/26/17 / #20170025859

Control of reactive power in a wind power plant

The invention relates to a method for controlling injection and absorption of reactive power in a wind power plant (WPP). In addition to wind turbine generators (WTG), the wind power plant comprises reactive power regulating devices, such as MSU and STATCOM devices. The reactive power regulating devices are controlled by... Vestas Wind Systems A s

01/19/17 / #20170018961

Wind turbine generators with power backup system

Auxiliary power is required by each generator to orient the rotor blades to face the wind direction and also for other control and safety functions. This auxiliary power is normally extracted from the power generated within each wind turbine generator. During servicing, auxiliary power is supplied from neighbouring generators using... Vestas Wind Systems A s

01/12/17 / #20170009739

Methods and systems for detecting sensor fault modes

A method of detecting a fault mode of a sensor is provided. The sensor may be, for example, a bending moment sensor and may sense a bending moment of a blade on a wind turbine generator (WTG). The method includes comparing data output by a first sensor with reference data... Vestas Wind Systems A s

01/05/17 / #20170002796

Control of a group of wind turbines

Methods and systems for reducing an output power of a group of wind turbines are provided. A measure of life usage by at least one component of each of a plurality of the turbines is determined, and is compared to a threshold value for life usage for the component. Power... Vestas Wind Systems A s

01/05/17 / #20170002797

Anti-oscillation securing wind turbine blades against oscillations

A tool for reducing vibrations in wind turbine blades at standstill includes an elongate sleeve formed of a net-like material for fitting over the blades, wherein the sleeve is formed with at least one protruding structure extending along at least a part of the length of the sleeve having an... Vestas Wind Systems A s








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