Match Document Document Title
9041238 Variable wing venturi generator  
A variable wing venturi generator and a housing for the same are presented. The wings are variable in that their relative position may be changed and optimized to maximize airflow through a...
9041240 Wind turbine apparatus  
A wind turbine apparatus includes a wind turbine, a support column supporting the wind turbine, and a turning base as a base for the support column, the turning base including a turning gear and a...
9041239 Vertical axis wind turbine with cambered airfoil blades  
A wind turbine having blades that rotate in a horizontal plane about a vertical axis. A single output shaft is directly connected by one-way bearings to the driven shaft of a permanent magnet...
9041236 Wind turbine having power electronics in the nacelle  
A wind turbine includes a nacelle which accommodates at least a generator and power electronics electrically interconnected between the generator and a power grid. At least one power electronic...
9039334 Methods and apparatuses for moving objects based on a buoyancy force  
A pipe of an apparatus has a first gas in a first space and a second gas in a second space. The first gas is in the amount to generate a buoyancy force that exceeds at least a gravity force to...
9041237 Wind turbine drive train and wind turbine  
A wind turbine drive train is provided. The wind turbine drive train includes a hub, a bearing system supporting the hub and having an inner race connected to the hub, and a generator gearlessly...
9035480 Wind turbine and method for operating a wind turbine  
A method is employed for operating a wind turbine. Electrical energy is produced by means of a generator and is fed into an electrical power network. The electrical energy is fed to the secondary...
9033650 Variable blade type tidal and wind power generator with increased generation efficiency  
Disclosed herein is a variable blade type tidal and wind power generator with increased generation efficiency. The tidal and wind power generator includes an installation frame (10), a vertical...
9030039 Wind turbine and compressed gas storage system for generating electrical power  
A wind turbine and compressed gas storage system for producing electrical energy. A plurality of wind turbines is serially interconnected for staged compression to output high pressure compressed...
9030038 Tethered airborne wind power generator system  
The present application is directed to a tethered airborne wind power generator system including a plurality of pilot buoyant parafoils, at least one power generator parafoil, a nacelle and its...
9030037 Wind generator with wind blade rotating cage for driving multiple generators  
A wind generator with a wind blade rotating cage for driving multiple generators is disclosed. Sixteen wind blades (8) manufactured by a stretch extrusion process are mounted on the periphery of...
9030036 Arrangement for a direct drive generator for a wind turbine and method for the assembly of the generator  
The invention concerns an arrangement for a direct drive generator for a wind turbine, which generator comprises a stator with several stator segments each stator segment having at least one...
9024463 Vertical axis wind turbine with multiple flap vanes  
An improved wind turbine device with energy storage comprises a turbine rotor with rotatable vertical shaft, at least one bearing for said vertical shaft, and multiple rotor vanes disposed...
9024458 Energy storage system utilizing compressed gas  
An energy storage and recovery system employs air compressed utilizing power from an operating wind turbine. This compressed air is stored within one or more chambers of a structure supporting the...
9018821 Stator arrangement for an electromechanical transducer, electromechanical transducer and wind turbine  
A stator arrangement for an electromechanical transducer is provided. The stator arrangement includes a base structure, a coil holder, a coil mounted at the coil holder; and a flexible element...
9018789 Drive train for a wind turbine  
A wind turbine drive train (1) comprising a gearbox (2), a generator (3) and a coupling (4) located between an output shaft (5) and a rotor shaft (6). The gearbox and the generator are separate...
9018788 Wind sensor system using blade signals  
The present invention relates to a wind-velocity-field measurement system for use in a wind turbine having a rotor with′ two or more blades, comprising at least one sensor-signal obtained by...
9018791 Impact type wind-driven power generating device  
An impact type wind-driven power generating device is classified into a vertical shaft impact type wind-driven power generating device and a horizontal shaft impact type wind-driven power...
9018787 System and method of wind turbine control using a torque setpoint  
In one aspect, embodiments of a method of controlling a power rating of a wind turbine are described. One embodiment of the method comprises retrieving, by a computing device, one or more preset...
9018783 Doubly-fed induction generator wind turbine system having solid-state stator switch  
Wind turbine systems and methods are provided. An exemplary system includes a wind driven doubly fed induction generator having a rotor and a stator, the stator providing AC power to a stator bus....
9018784 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...
9018782 Over-rating control in wind turbines and wind power plants  
Wind turbines of a wind power plant may be selectively over-rated by measuring the difference between the nominal and actual power plant outputs and deriving an over-rating request signal based on...
9018790 Wind power generation equipment  
An annular hood, with a stator assembly mounted and fixed therein, is fixed on the support bar. The stator assembly comprises an annular stator mounting plate which is fixed with an inner stator...
9013053 Multi-type wind turbine  
A multi-type wind turbine is provided such that a plurality of arms are combined with one tower in a radial direction, and a unit generator having a blade is provided at the plurality of arms,...
9014861 Method and system for noise-controlled operation of a wind turbine  
A method for noise-reduced operation a wind is provided. The method includes determining a wind speed during normal operation of the wind turbine and determining a weighted rotor speed setpoint...
9013055 Kite system for generating electricity  
A kite based electricity generation system uses a kite that is tethered to a permanent magnet. The permanent magnet is slidably disposed within a housing with an electric coil disposed therein,...
9013054 Wind turbine with channels and roof air exhaust  
This wind turbine is enclosed in a housing structure with a bell shaped opening and a stack effect created on the roof. One side of the housing, facing the wind, opens up to receive air. The air...
9006917 Wind turbine  
The invention concerns a wind turbine comprising a tower (23), on top of the tower a nacelle (29) supported by a vertical drum (24) enclosing an upper room (52), a rotor rotating with a more or...
9006918 Wind turbine  
A wind turbine having an electric machine in turn having a stator, and a rotor which rotates about an axis of rotation with respect to the stator; the rotor having a number of magnetized modules,...
9000605 Lighter-than-air craft for energy-producing turbines  
A wind-based power generating system provides a wind energy converter for converting wind energy into another form of energy using a lighter-than-air craft configured to produce a positive net...
8994200 Power system frequency inertia for power generation system  
A power generation system is provided. The power generation system including a power generation unit operable to supply electrical power to an utility system; a synchronous machine coupled to the...
8994207 System for generating electrical energy from low speed wind energy by means of two systems of drive blades  
The invention relates to a system for generating electrical energy from wind energy, said system being characterized in that the design makes use of small air currents and does not require a large...
8994206 Turbine-based energy generation system with DC output  
An energy generation system includes a turbine, an electric generator, a step-up transformer, and a converter. The turbine is operable to extract energy from a fluid flow and convert the extracted...
8994205 Wind turbine generator rotor mounted upon generator stator  
A wind turbine that includes a rotor, a generator, and a tower is described. The rotor includes a rotor hub and one or more rotor blades. The generator includes a generator stator and a generator...
8987929 System and method for operating wind farm  
Systems and methods for operating a wind farm are disclosed. The method includes detecting an operating condition of an upwind wind generator, the upwind wind generator located upstream of a...
8981587 Wind turbine  
A wind turbine that includes a rotor and a generator is described. The rotor includes a rotor hub that is rotatably mounted on a frame and one or more rotor blades. The generator includes a...
8975795 Electric generator  
Electric generator is disclosed having a stator and a rotor. The rotor being rotatable around a center axis and relatively to the stator and the stator includes a number of stator windings...
8975770 Wind power turbine electric generator and wind power turbine equipped with an electric generator  
A wind power turbine electric generator, the electric generator having a tubular first supporting structure extending about an axis of rotation; a second supporting structure extending about the...
8977401 Lifetime optimization of a wind turbine generator by controlling the generator temperature  
A wind turbine and a method for controlling the temperature of a wind turbine generator are disclosed, the wind turbine comprising a generator, generator temperature control means and means for...
8975768 Methods for operating wind turbine system having dynamic brake  
Wind turbine systems and methods for operating wind turbine systems are provided. In one embodiment, a method includes gating on a dynamic brake switch of a dynamic brake in a wind turbine power...
8975771 Wind power device with dynamic sail, streamlined cable or enhanced ground mechanism  
An improved wind power device for wind energy conversion or vehicle propulsion. Among many possibilities contemplated, the device may have a moving sail with tethered wings (101), moving in...
8963362 Power generating windbags and waterbags  
A method of using a bagged power generation system comprising windbags and water-bags for harnessing wind and water power to produce electricity to meet the escalating energy needs of mankind....
8961130 Cooling and climate control system and method for an offshore wind turbine  
A system and method to cool the air inside the nacelle and the heat generating components, particularly of an offshore wind turbine is presented. The ambient air first enters an air handling unit...
8963361 Method to rotate the rotor of a wind turbine and means to use in this method  
A direct driven wind turbine includes an electrical generator with a rotor and a stator, a hub constructed to receive a rotor blade, and an actuator device. The hub is connected to the rotor of...
8963359 Apparatus and method for co-generation of electricity  
A co-generation apparatus for the generation of electricity from an external source of forced air is described in which the co-generation apparatus comprises a turbine, a generator, a...
8957535 Fault tolerant wind turbine converter  
A wind turbine is arranged to operate in a fully-functional converter mode and a faulty-converter mode. A plurality of converters are arranged to share electric current in the fully-functional...
8950710 Apparatus for extracting power from fluid flow  
An apparatus for extracting power includes a track and an airfoil coupled to the track. The track includes first and second elongate sections, where the first elongate section is positioned above...
8954206 Unmanned aerial vehicle  
The present disclosure relates to an unmanned aerial vehicle (UAV) able to harvest energy from updrafts and a method of enhancing operation of an unmanned aerial vehicle. The unmanned aerial...
8952558 Wind generating device  
The present invention discloses a wind power generating device, comprising a tower column and a first wind generating set. The first wind generating set is installed at a position on the tower...
8946946 Converter device and method for converting electrical power  
A converter device (for power conversion in e.g. a power plant such as a wind turbine is disclosed. An individual controller is provided for each phase of an electrical output power of the...