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Prime-mover Dynamo Plants > Electric Control > Fluid-current Motors > Wind

Wind

Wind patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

04/10/14 - 20140097618 - Method of operating a variable speed wind turbine
A method of operating a wind turbine having a rotor with a plurality of blades, and one or more pitch mechanisms for rotating the blades is disclosed. The method comprises a sub-nominal zone of operation and a supra-nominal zone of operation for wind speeds above the nominal wind speed. The...

04/10/14 - 20140097619 - Wind turbine control method
A wind turbine control method is described based on the performance of various measurements of the oscillations of the nacelle of the wind turbine for the purpose of carrying out a series of calculations, the results of which allow parameterisation of certain actions on different wind turbine elements in order...

04/03/14 - 20140091571 - Wind turbine system
A wind turbine system includes a tower, a nacelle which is supported on the tower, a plurality of blades which are rotatably supported to the nacelle via a hub, and a generator which generates electricity by rotating the blades, wherein in case the tower shifts from vertical direction, the wind...

04/03/14 - 20140091572 - Method for operating a wind energy plant
The present invention concerns a method of operating a wind power installation comprising a pod with an electric generator for generating electric current and an aerodynamic rotor coupled to the generator and having one or more rotor blades, including the steps: operating the wind power installation when ice accretion on...

03/27/14 - 20140084587 - Wind turbine generator system and method for operating a wind turbine generator system
The present invention concerns a method of controlling a wind power installation connected to an electric network having a generator with an aerodynamic rotor with an adjustable rotary speed, in which the wind power installation can be operated at an operating point which is optimum in relation to prevailing wind...

03/20/14 - 20140077495 - System for converting wind energy into electrical energy through the flight of power wing profiles tethered to the ground by cables of a fixed length, without passive phases, and with automatic adaptation to wind conditions
Wind energy is converted into electrical or mechanical energy through the flight of at least one power wing profile tethered via one or more cables to a ground unit moved by the power wing profile along a path of alternating displacement for driving a generator, where the path of alternating...

03/13/14 - 20140070535 - Method and systems for operating a wind turbine using dynamic braking in response to a grid event
A method and system for dissipating energy in a direct current (dc) bus of a doubly-fed induction generator (DFIG) converter during a grid event is described. In one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at least a DFIG generator and a...

03/13/14 - 20140070536 - Voltage control in a doubly-fed induction generator wind turbine system
Systems and methods for regulating voltage in a doubly fed induction generator (DFIG) system are provided. More particularly, the voltage of the auxiliary power feed in a DFIG wind turbine system can be regulated by outputting reactive power from a power converter to a reactive element coupled between the auxiliary...

03/13/14 - 20140070537 - Wind turbine
There is provided a wind power installation having a component to be monitored and a crack detection unit. In that case the crack detection unit has at least one thread or fiber which is fastened directly on the component to be monitored. The crack detection unit further has a crack...

03/13/14 - 20140070538 - Method and apparatus for protecting wind turbines from extreme events
A wind turbine has a scanning Lidar arranged on the nacelle. The Lidar has a single scanning beam which scans about a substantially vertical axis to sense wind related data in a measurement volume a predetermined distance from the Lidar. Fast Fourier transforms of data from a plurality of points...

03/13/14 - 20140070539 - Wind turbine and method of operating a wind turbine
A method of operating a wind turbine comprising a rotor, a multi winding generator having a plurality of independent sets of control windings and a plurality of independent power electronic converters for controlling each set of control windings independently, the method comprising in a normal operation mode, the plurality of...

03/06/14 - 20140062085 - Voltage control for wind turbine generators
A voltage control system for a wind turbine generator may include a reactive power regulator configured to control reactive power production by the wind turbine generator by adjusting a voltage setpoint for the generator. The reactive power regulator may have a first time constant and the voltage setpoint may be...

03/06/14 - 20140062086 - Reactive power regulation
The present invention relates to a method of reactive power regulation in a wind turbine comprising a local reactive power control system adapted to operate in a central control mode and a local control mode, a method of reactive power regulation in a wind park connected to an electrical grid,...

02/27/14 - 20140054892 - Wind turbine pitch control system
A pitch control system for a wind turbine is disclosed. The pitch control system may generally include a motor having an armature and a winding and a grid power source configured to supply electrical power to the motor. The pitch control system may also include a plurality of switching components...

02/27/14 - 20140054893 - Hydraulic transmission methods and apparatus for wind turbines
A hydraulic transmission for a wind turbine that includes a rotor, one or more blades mounted to the rotor, a hydraulic pump mechanically connected to the rotor, and a hydraulic motor. The hydraulic pump and the hydraulic motor are connected to one another by a high pressure circuit. The hydraulic...

02/27/14 - 20140054894 - Wind turbine including optical sensor system
A wind turbine includes an optical sensor system comprising one or more optical sensors comprising: a sensor membrane; a light source for illuminating a surface of the sensor membrane; an optical dispersive element arranged to disperse the light from the light source; and a light detector for receiving a portion...

02/20/14 - 20140049046 - Wind power plant with highly reliable real-time power control
The present invention relates to a fault-tolerant control system for a wind power plant comprising a plurality of power units, the control system comprising control means for generating a replica of essentially concurrent power unit set-point values, a data communication network for transmitting the essentially concurrent power unit set-point values...

02/13/14 - 20140042745 - System and method for controlling speed and torque of a wind turbine during post-rated wind speed conditions
A method and system for controlling a wind turbine generator at wind speeds in excess of rated wind speed to detect wind speeds and, at rated wind speed, control generator torque and generator rotational speed to achieve a rated power for the wind turbine generator. As wind speed increases beyond...

02/13/14 - 20140042746 - Shock sensor for wind turbine generator
A vibration sensor (5) mountable to a wind turbine generator for detecting excessive vibration of the wind turbine generator, the sensor comprising a pendulum having a pendulum bob (25) of pre-determined mass coupled to a detection switch (10), the detection switch arranged to detect oscillation of the pendulum exceeding a...

02/06/14 - 20140035284 - Wind park control system
A wind park control system for controlling reactive power output of wind turbines is described. The wind park delivers active power and reactive power to a utility grid. A total amount of reactive power required by the utility grid and an individual amount of reactive power for each wind turbine...

02/06/14 - 20140035285 - Method and apparatus for protecting wind turbines from extreme events
A wind turbine has a Lidar (20) device to sense wind conditions upstream of the wind turbine. Signals from the wind turbine are processed to detect an extreme change in wind direction. The detection is performed by differentiating the rate of change of wind direction and filtering for a period...

01/30/14 - 20140028023 - Signal transmission system for a wind energy system and method for transmitting signals in a wind energy system
A wind energy system is described including a nacelle, a rotor rotatably connected to the nacelle, and a power line for transmitting electrical energy between the nacelle and the rotor. The power line includes a transmitting device between the rotor and the nacelle. Further, the wind energy system also includes...

01/30/14 - 20140028024 - Wind turbine control method
A wind turbine control method is described comprising the detection of the presence of an anomaly in the aerodynamic profile of the blades and operation of the wind turbine in accordance not only with the determination of said anomaly, but also taking into account the characteristics thereof....

01/30/14 - 20140028025 - Device and method for determining a blade position and for ending a safety run
A wind turbine assembly has a hub, a rotor blade, a bearing that can be installed between the rotor blade and the hub, and an adjusting device. The rotor blade is arranged on the hub so as to be rotatable substantially its longitudinal axis. The adjusting device comprises at least...

01/23/14 - 20140021720 - Method and apparatus for adaptively controlling wind park turbines
A wind turbine park (242) connected to a transmission system (234). The wind turbine park includes a component (230) for determining a short circuit ratio and based thereon for determining a parameter adjustment recipe, and a controller (238) for controlling an output of the wind turbine park, the controller (238)...

01/16/14 - 20140015249 - Wind power generation system and method for controlling excitation synchronous generator thereof
A stand-alone wind power generation system and a method for controlling an excitation synchronous generator thereof are provided. In this method, an input wind power is transformed into an electrical power and outputted to a load. With the use of a coaxial configuration, a windmill, a speed-increasing gearbox, the excitation...

01/16/14 - 20140015250 - Method and system for operating a wind turbine
A wind turbine includes a grid side converter coupled to a grid via a power line. The method includes determining a first active power reference and a first reactive power reference indicating a requested amount of active power and reactive power, respectively, depending on at least a wind turbine operation...

01/16/14 - 20140015251 - Safety system for a wind turbine
The invention provides a safety system for a wind turbine comprising a tower with a nacelle, and a rotor with blades and a connected drive train. The safety system comprises at least one load sensing system for providing a load signal significant for a load on the tower or rotor,...

01/16/14 - 20140015252 - Methods for adjusting the power output of a wind turbine
A method for adjusting the power output of a wind turbine (10) based on component operating temperatures is disclosed. The method may generally include receiving a signal associated with an operating temperature of the wind turbine (402), determining a desired power output range of the wind turbine at the operating...

01/09/14 - 20140008912 - Method of operating a wind turbine as well as a system suitable therefor
According to a method of the present invention, a method of operating a wind turbine comprising a power generator, a generator side converter connected to the power generator, a line side converter connected to a power grid through power components, and a DC-link connected between the generator side converter and...

01/02/14 - 20140001758 - Method and arrangement for responding to a grid event, such as fast under frequency combining demand response, inertial response and spinning reserve
A method for controlling a wind power plant in case of a frequency drop in a utility grid to which the wind turbines are connected is provided. The method includes combining demand response, inertial response and spinning reserve for given wind speeds in order for wind power plants to deliver...

01/02/14 - 20140001759 - Method of operating a wind turbine as well as a system suitable therefore
According to an embodiment of the present invention, a method of operating a wind turbine including a power generator, a generator/machine side converter connected to the power generator, a grid/line side converter connected to a power grid through power components, and a DC-link connected between the machine side converter and...

12/26/13 - 20130341922 - Method and module for measuring the rate of change of frequency of waveforms related to converter units in wind turbine generators
Method and module for measuring the rate of change of frequency of a waveform related to a converter unit of a wind turbine generator, comprising: measuring an instantaneous value of said rate of change of frequency of the waveform, calculating a first filtered value of said rate of change of...

12/19/13 - 20130334817 - Wind turbine rotor control
A method for operating a wind turbine is provided. The method includes determining a wind condition, determining for the wind condition expected azimuthal positions of a rotating wind rotor of the wind turbine, and determining for the wind condition desired azimuthal positions of the rotating wind rotor so that at...

12/19/13 - 20130334818 - Dynamic braking on a wind turbine during a fault
A braking system for a wind turbine is disclosed. The braking system may include a DC chopper connected to a DC bus and a super capacitor capable of being connected to the DC chopper through a switch. The DC chopper may be controlled by a control system to enable one...

12/19/13 - 20130334819 - Wind power plant
The present invention concerns a module carrier for fixing electric modules provided for controlling one or more pitch drives of a wind power installation to a rotor hub of the wind power installation comprising a main body for carrying the electric modules, wherein the rotor hub is adapted to rotate...

12/12/13 - 20130328309 - Matrix converter apparatus for wind-power generation, method for controlling matrix converter, wind-power generator apparatus, wind farm, and method for manufacturing wind turbine
A matrix converter apparatus for wind-power generation according to an embodiment includes a matrix converter and a controller. The controller adds information about a voltage phase of the power grid or information about a voltage phase of the generator to a power-grid-side power factor to generate information about a current...

12/05/13 - 20130320676 - System and method for correcting nacelle wind velocity of wind power generator
A system and method for correcting a nacelle wind velocity of a wind power generator are provided. The nacelle wind velocity correction system includes: a measurement information collection unit that collects a nacelle wind velocity that is measured by a nacelle anemometer that is installed on a nacelle of the...

11/28/13 - 20130313826 - Wind turbine generator
A system for a wind turbine generator comprising: a set of voltage limiting elements, and a controller configured to bypass the voltage limiting elements when a line voltage is below a predetermined threshold, and configured to connect each voltage limiting element in series between a grid side converter and a...

11/28/13 - 20130313827 - Thermal protection of electrical generating components under continuous active power generation
The present invention relates to systems and methods for maintain the active power production of a fluid turbine and regulating the temperature of an electrical generating component by controlling the reactive power production. A thermal parameter of the electrical generating component is monitored. If the electrical generating component exceeds a...

11/28/13 - 20130313828 - Assembly operating in a variable regime
The invention relates to electromechanical assemblies comprising an alternator, especially of high power, typically greater than or equal to IMW, and a converter, the alternator comprising a rotor driven in rotation, by a wind turbine for example, and more particularly to wound rotor synchronous alternators. The drive can also take...

11/21/13 - 20130307270 - Fire system for a wind turbine
A fire detection and suppression system for a wind turbine is disclosed. The fire detection and suppression system may be capable of independent operation without input from the wind turbine. The fire detection and suppression system may further be capable of generating and communicating a fire signal to the wind...

11/21/13 - 20130307271 - Inrush current protection for wind turbines and wind farms
A wind turbine is provided. The wind turbine includes a transformer having a low-voltage side and a high-voltage side. The transformer is configured to step up a voltage of the low-voltage side of the transformer to a voltage of an external grid. The wind turbine further includes an electrical power...

11/14/13 - 20130300115 - Systems and methods for optimizing power generation in a wind farm turbine array
A method for controlling turbines in a wind farm turbine array is shown and described. The method includes using a cascade of self-optimizing controllers to in an attempt to maximize the power generated by at least a portion of the wind farm turbine array, wherein at least one of the...

11/14/13 - 20130300116 - Method and arrangement for damping a shaft oscillation
A method for damping an oscillation of a rotational speed of a shaft of a wind turbine is described. A converter is connected between a generator and a wind turbine output terminal. The rotational speed of the shaft or the generator is measured. A DC-link voltage reference varying in dependence...

11/14/13 - 20130300117 - Wind turbine system and method using voltage generating material
A system for a wind turbine comprises: one or more devices (12)(30) operatively mounted on a wind turbine (1) for generating an output signal during use; and a voltage source (22)(32) in electrical connection with the one or more devices (12)(30) for powering the one or more devices during use....

11/14/13 - 20130300118 - Wind turbine control for a weak grid by reducing active power output
A method is provided for controlling a wind turbine connected to a node connected to a utility grid. The node also has a plurality of other wind turbines connected to it. The method includes measuring a quantity indicative of a slope of a voltage at the node in dependence of...

11/07/13 - 20130292942 - Wind power generation assembly
A wind power generation assembly having a rotatable base. Attached to the base are a plurality of arcuate panels that surround a turbine assembly. The center axis of the base and the center axis of the turbine assembly are offset. The panels are positioned to capture the wind and redirect...

11/07/13 - 20130292943 - Wind turbine system and method of operating a wind turbine system
A method of operating a wind turbine system includes: determining, by an industrial process controller, if an actual wind speed value, received from an anemometer, of a wind at a location of the wind turbine system is less than a predetermined minimum wind speed value. If so, then calculating a...

11/07/13 - 20130292944 - System and method for controlling electric fields in electro-hydrodynamic applications
An electro-hydrodynamic system that extracts energy from a gas stream, which includes an injector that injects a first species of particles having the same polarity into the gas stream, wherein particle movement with the gas stream is opposed by a first electric field; an electric field generator that generates a...

10/31/13 - 20130285377 - Method and system for harnessing wind energy using a tethered airfoil
The present disclosure is directed at a method and system for harnessing wind energy using a tethered airfoil. During a traction phase, wind is allowed to extend a kite tether. Wind energy that is harnessed through extension of the kite tether is mechanically stored prior to using the wind energy...

10/31/13 - 20130285378 - Electro-hydrodynamic wind energy system
A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a particle into the electric field. The wind drag on the particle is at least partially opposed by a force of the electric...