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7619321 |
Method of operating a wind power station
When planning and setting up wind power installations, the visual detractions to be expected on the part of the wind power installation on the environment play an increasingly important part in...
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7615884 |
Hybrid wind turbine system, apparatus and method
A hybrid wind turbine assembly and method capable of providing a total firm power output. There is a wind power section which delivers non-firm power from the wind turbine to a generator section....
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7615880 |
Wind turbine generator system
A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation...
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7613548 |
Systems and methods for controlling a ramp rate of a wind farm
A method for controlling a ramp rate of a wind farm is described. The method includes predicting an initial predicted power to be output by a wind farm including a wind turbine.
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7612463 |
Generator
Within a power generating arrangement 1 it is typically necessary to provide a coupling with an electrical power distribution cable 5 . Previously this was sometimes achieved through use of...
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7612462 |
Floating wind turbine system
A floating wind turbine system with a tower structure that includes at least one stability arm extending therefrom and that is anchored to the sea floor with a rotatable position retention device...
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7608939 |
Methods and apparatus for assembling and operating monocoque rotary machines
A method and apparatus of assembling a rotary machine includes providing at least one component. The component is at least one of a rotating member and a stationary member. The method and apparatus...
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7608937 |
Power generation system and method for storing electrical energy
A power generation system and a method for storing electrical energy are provided. The method includes generating a first AC voltage from a wind turbine generator and converting the first AC...
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7606638 |
Wind park with robust reactive power adjustment system and method for the operation thereof
A windpark includes at least two wind energy installations, each of which installations comprises a rotor, a generator driven by the rotor and a control device, and which are connected via...
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7605491 |
Apparatus for generating electric power using wind energy
An apparatus for generating electric power from wind energy includes: a blade unit having upright blades connected fixedly to an upright rod that has a lower end disposed pivotally in a base such...
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7605489 |
Airflow power station
An airflow power station preferably comprises a windmill engine rotatable by wind including a main shaft and a rotational speed sensor, a compressed-air tank, a compressor charging the tank, an...
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7605488 |
Method for eliminating the impact of backlashes in the gearbox of a wind turbine
Method for operating a wind turbine comprising a drive train driving one or more electrical generators that supply power to an electric grid, by which, in events that can create a load inversion in...
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7605487 |
Method for operating a frequency converter of a generator and wind energy turbine having a generator operated according to the method
The method for operating a frequency converter ( 26 ) of a generator ( 14 ) in particular of a wind energy turbine ( 10 ), in the event of a substantial grid voltage drop, wherein the frequency...
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7603202 |
Method for optimizing the operation of wind farms
A method for optimizing the operation of wind energy installations includes operating target and reference wind energy installations to optimize the target installation first using a first set of...
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7602077 |
Systems and methods for tethered wind turbines
According to some embodiments, an airborne body extends horizontally along an axis between a first point and a second point. The body may be, for example, at least partially filled with a gas. Two...
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7602075 |
Systems, methods and apparatuses for a wind turbine controller
The disclosure describes implementations of methods, systems and apparatuses that are configured to facilitate normal operating characteristics for a wind turbine during normal operation, as well...
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7602074 |
Wind power installation having an auxiliary generator and method for the control thereof
A wind power installation with a rotor, a generator for generating electric power, at least one rotatably mounted rotor blade displaceable about its longitudinal axis for adjusting the angle of...
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7595566 |
Method for the operation of a wind energy plant with a synchronous generator and a superimposition gearbox
A method for the operation of a wind energy plant, with a synchronous generator and a superimposition gearbox, which is connected between rotor and generator, and the gear ratio of which is...
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7595563 |
Method of operating a wind power installation and a wind power installation
The present invention concerns a method of operating a wind power installation comprising an electric generator drivable by a rotor for outputting electrical power to an electrical consumer, in...
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7592712 |
Electric generator device actuated by a fluid flow
An electric generator device comprising a panel bearing one or more electric generating machines each including a stator and a rotor concentric and substantially co-planar. The rotor is supported...
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7592711 |
Self-propelled wind power generator
A self-propelled wind power regenerator powered by the natural wind, by a propeller or a combination of both, depending on the condition of the wind and the demand of the electricity. During the...
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7586206 |
Wind turbine and method for operating same
A wind turbine includes an asynchronous generator having a rotor and a stator, means for determining an actual torque-speed curve of the generator, means for determining an actual grid frequency,...
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7586205 |
Method and system for regulation of the rotational speed of a rotor on a wind turbine
The invention relates to a method and a system for regulation of the rotational speed ( 52 ) of a rotor on a wind energy unit with a generator and a rotor blade. The first set parameter is a pitch...
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7582982 |
Omni Directional wind generator
A wind generator comprising omni directional wind vanes as the source of mechanical energy. The generator comprises an inner and outer rotor, each rotor supporting a plurality of radially extending...
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7582981 |
Airborne wind turbine electricity generating system
An airborne system for producing electricity from wind energy includes a shaft, at least two turbines rotatably mounted to the shaft and arranged to rotate independent of one another and in...
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7579706 |
Wind energy system with a fully integrated machine assembly
A wind energy system comprising a tower, a machine housing which is rotatably arranged on the tower about its axis, receiving a gear mechanism, a generator, a slip ring arrangement, a brake, and a...
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7579702 |
Electric power converting device and power converting method for controlling doubly-fed induction generator
Disclosed herein is an electric power converting device and power converting method for controlling doubly-fed induction generators, which provides a synchronous generator for generating auxiliary...
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7579701 |
Insulation and power generation system for buildings
A system for insulating a building and generating electricity includes a method for providing insulation for a building that resists heat transfer through conduction, convection and radiation,...
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7576444 |
Micro turbine sheet design for gathering wind energy
Disclosed is a method and system for providing an energy gathering sheet to harness and provide energy to destinations, such as homes and businesses. The energy gathering sheet is configured to...
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7576443 |
Method and apparatus for generating electric power
A method of generating electric power includes providing at least one open-winding generator having at least one winding, wherein the at least one winding has a first terminal and a second...
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7573149 |
System and method for controlling a wind power plant
An apparatus and method for extending the power-capture region of a wind turbine during certain operating conditions is disclosed. The actual set point of an operational parameter is selected so as...
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7573148 |
Boundary layer wind turbine
A wind turbine including a stator assembly having a plurality of stator blades for tangentially redirecting wind into a rotor assembly having a plurality of vertical rotor blades disposed...
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7573145 |
Electric power generation system controlled to reduce perception of operational changes
An electric power system includes an engine, a generator driven by the engine, an electrical energy storage device, power control circuitry coupling the generator and storage device together, and a...
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7571013 |
Method for optimizing operational parameters on wind farms
A method for optimization of operating parameters of a wind energy installation defines an upper and a lower interval limit value for a parameter to be optimized. The method includes carrying out a...
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7569944 |
Wind power generation system and operating method thereof
A wind power generation system wherein procedure for controlling the blade pitch is changed in accordance with the rate of decrease in the amplitude of the grid voltage, and when over current...
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7569943 |
Variable speed wind turbine drive and control system
A variable speed wind turbine utilizes a hydraulic transmission including a hydraulic pump coupled to a rotor and a hydraulic motor coupled to an induction generator to produce variable frequency...
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7566983 |
Power installation for conversion of energy of water and air streams
The proposed water-wind combined energy conversion installation comprises a hydro-unit including two lower rotors below the water level furnished with blades providing their rotation in opposite...
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7566982 |
Method for controlling and adjusting a wind turbine
A method for controlling and adjusting a wind power installation having a nacelle displaceable by an azimuth angle, at least one rotor blade displaceable about its longitudinal axis and a power...
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7566981 |
Actuating drive and emergency energy supply device
An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a...
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7566980 |
System and method for creating a geothermal roadway utility with alternative energy pumping system
A roadway system and method for energy generation and distribution are presented. This system allows a geothermal infrastructure to be tied into the roadway system electricity grid. The geothermal...
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7560824 |
Power train for a wind power plant
A power train for a wind power plant includes a rotor ( 1 ) for driving a gear ( 4 ), wherein the rotor blades ( 2 ) of the rotor are pivotally arranged around the longitudinal axis thereof on the...
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7560823 |
Wind energy system and method of operation thereof
A method for operating a wind energy system is provided comprising the steps of setting the value of an operational parameter of the wind energy system, measuring a yield parameter of the wind...
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7557457 |
Method for the operation of wind power plants
Method for the operation of a wind power plant with controllable effective power, wherein an idle power interval defined by a minimum idle power and a maximum idle power is assigned to each value...
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7550863 |
Wind turbine
The invention concerns a wind turbine comprising a vertical tower with a yaw bearing, a nacelle on top of the yaw bearing, a hub with blades rotatable around a more or less horizontal rotation...
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7550862 |
Wind turbine and method for the automatic correction of wind vane settings
The invention relates to a wind turbine comprising a machine housing ( 12 ) equipped with a rotor ( 14 ), which is mounted to pivot on a sub-structure ( 10 ). Wind parameters and an...
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7547985 |
Wind turbine apparatus
Conventionally, a main shaft of the wind turbine apparatus has awkward such as heaviness or difficulties of assembling, since the length of the main shaft must be long to support a generator rotor....
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7545052 |
Method for operation of a converter system
The present invention relates to a method for operating a converter system of a wind turbine, wherein the converter system includes converter modules capable of converting electric power produced...
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7541686 |
Wind power generator with biased transmission arrangement
In a wind power generation installation comprising a rotor with rotor blades mounted on a tower and connected via a transmission to a generator for generating electric power, an electric machine...
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7531911 |
Reactive power control for operating a wind farm
A system and method of reactive power regulation in a wind farm having a plurality of wind turbines that provides optimum control of the reactive power compensation in the wind farm and is able to...
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7531910 |
Wing energy unit
The invention relates to a wind energy unit, connected to an electrical 3-phase AC network, comprising a generator with a rotor, provided with a regulator device, whereby the regulator device...
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