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Prime-mover dynamo plants March listing by industry category 03/11Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 03/31/2011 > 15 patent applications in 7 patent subcategories. listing by industry category
20110074163 - Cangrier-m87 machine or c-m87 a very powerful synchronized multi-lever perpetual motion machine designed for hydroelectric (hydraulic) power generation water recycling concept: When water is pumped manually to the overhead tank, the weight of the water is felt on the opposite end of the lever. Thus, an equal or heavier weight to counter that weight is thought of This idea works on the Output Process but not on the Input Process. However,... Agent:
20110074162 - Energy harvester apparatus having improved efficiency: An improved vibrational energy harvester includes a housing and at least one energy transducer. In an embodiment, a second mass element is arranged to receive collisionally transferred kinetic energy from a first mass element when the housing is in an effective state of mechanical agitation, resulting in relative motion between... Agent:
20110074164 - Solar thermal power generation apparatus: A solar thermal power generation apparatus of the present invention is made up of a turbine 12 rotatable around a vertical axis 11, a power generator 13 driven by the turbine 12, a funnel 14 disposed along the vertical axis 11 so as to house the turbine 12 and having... Agent: Kannon Energy Co., Ltd.
20110074165 - Welbore rig generator engine power control: A system for controlling power load to a rig engine of a wellbore rig. The system includes a controller for controlling the rig engine, a sensor for sensing the exhaust temperature of the rig engine, the sensor in communication with the controller for providing to the controller signals indicative of... Agent: Varco I/p, Inc.
20110074154 - control system and a method for redundant control of a wind turbine: A control system and a method for controlling operation of a wind turbine are disclosed. A first sensor and a second sensor are arranged for sampling or continuously measuring a first physical value and a second physical value being representative of a first physical impact and a second physical impact... Agent: Vestas Wind Systems A/s
20110074153 - Electrical contact element for high-current plug connectors and manufacturing method: The present invention relates to high-current plug connectors, in particular to electrical contact elements for plug connectors of this type, which are distinguished by low heating even at high currents, and to a corresponding method for manufacturing contact elements of this type. According to the invention, for this purpose, the... Agent:
20110074155 - Floating offshore wind farm, a floating offshore wind turbine and a method for positioning a floating offshore wind turbine: A floating offshore wind turbine and a floating offshore wind farm with at least one floating offshore wind turbine are provided. The floating offshore wind turbine includes a floating platform anchored to an underwater ground, a wind turbine mounted on the floating platform, and a drive. The drive is adapted... Agent:
20110074151 - Multi-use energy storage for renewable sources: A power generation system having a wind turbine blade assembly, a generator mechanically coupled to the blade assembly, and a power converter coupled to the generator is provided. An energy storage device and a bidirectional converter coupling the energy storage device to the power converter are also provided in the... Agent: General Electric Company
20110074152 - Wind turbine generator and method of controlling the same: In a case where a request for changing a maximum value of active power and a newly defined maximum value of active power are received from the utility grid side, a maximum value of an active power demand value set to a rated value is changed to the newly defined... Agent: Mitsubishi Heavy Industries, Ltd.
20110074156 - Spark suppression for a genset: A method for operating a four-stroke internal combustion engine including a crankshaft coupled to a piston, which includes moving the piston in accordance with a sequence of four different strokes; mechanically driving an electric power generator with the crankshaft during the operating of the engine; generating a first sensor signal... Agent:
20110074157 - Faucet hydroelectric generator: According to one embodiment, a faucet hydroelectric generator includes: a cylinder portion including a supply water inflow port and a supply water outflow port and having a supply water flow channel formed therein; a bucket having a rotation center axis generally parallel to the supply water flow channel, and including... Agent: Toto Ltd.
20110074158 - Turbo-machine having at least two counter-rotatable rotors and having mechanical torque compensation: A turbo-machine includes at least two rotors which are mounted so as to be rotatable in opposite directions relative to one another about a rotational axis and on which are arranged blades or vanes, having a rotatably mounted machine shaft and having a drive mechanism which connects the machine shaft... Agent: Siemens Aktiengesellschaft
20110074160 - Wave energy conversion plant: The present invention provides a structure driven by floats placed in a body of water such as a sea, an ocean or the like for converting wave energy into electricity. The structure comprises a floating body to float and stabilize the structure in the water wherein a platform is provided... Agent:
20110074159 - Wave energy conversion system: An underwater wave energy converter (WEC) (10) has a piston (32) that reciprocates up and down as recurring waves (22) pass over. Downward motion of the piston (32) drives the rods or plungers (50b) of a multiplicity of hydraulic jacks (50) to pressurize hydraulic fluid in an energy conversion system.... Agent:
20110074161 - Infrastructure for driving and assisted take-off of airfoils for tropospheric aeolian generator: An infrastructure for tropospheric aeolian generator is described, which comprises a rotary basement (1), at least one orientable arm (2), at least one ventilation plant (3), at least one system (4) for supporting at least one wing (7), and a driving system (5) of control cables (6) of the wing... Agent:03/24/2011 > 11 patent applications in 7 patent subcategories. listing by industry category
20110068585 - Method and system for capturing and utilizing energy generated in a flue gas stream processing system: A system and process for utilizing energy generated within a flue gas processing system (100). The process includes subjecting a carbon dioxide loaded solution (142) to pressure in a regeneration system (136), thereby removing carbon dioxide from the carbon dioxide loaded solution (142) and generating a high pressure carbon dioxide... Agent: Alstom Technology Ltd
20110068575 - Hybrid integrated cogeneration system and method: A system and method is provided for converting electrical energy input provided by a renewable prime energy into efficient thermo-dynamic energy for cogeneration purposes, activated by the main infrared radiation means and an energy density increasing means functioning synergistically. A closely approximated ideal blackbody condition therein, is utilized to heat... Agent:
20110068576 - Method for early detection and anticipatory control of consumer-end load shedding in an electrical grid, and appartus for carrying out the method: A method for early detection and anticipatory control of consumer-end load shedding in a single-phase or polyphase electrical grid supplied with single phase or polyphase by at least one generator driven by at least one rotating machine includes measuring a current and a voltage between the at least one generator... Agent: Alstom Technology Ltd
20110068577 - Apparatus for providing overload protection for wind power generator and method thereof: An apparatus for providing overload protection of a wind power generator and a method thereof are disclosed. When the wind power generator is exposed to wind force excesses a preset safety threshold, the apparatus is started to rotate a fan set and a nacelle of the wind power generator, so... Agent: Hiwin Mikrosystem Corp.
20110068579 - Ocean wave energy converter: An ocean wave energy converter comprising a structure that is supported above the water and has means to stabilise the structure, an array of guided independently operated elongate floats that operate from the structure above via two or more guidance arms, each guidance arm is attached to the structure so... Agent:
20110068578 - Wave energy conversion device: Wave energy conversion device (WEC) comprising a means for damping the reactionary motion of a wave energy conversion device to wave motion, which is a cylindrical bellowed elastomeric member that acts under axial compression.... Agent: E.i. Du Pont De Nemours And Company
20110068580 - Conveyor-type system for generating electricity from water currents: A modular system for producing electricity from water currents is disclosed. Each module contains a submersible water current energy converter and a self-adjusting buoyant mooring mechanism. The converter consists of a pair of contra-rotating conveyor-type turbines, connected to electrical generators, and a water flow accelerator. Each turbine comprises a conveyor... Agent:
20110068584 - Method and device for energy generation: A method and device for using magnetostriction to generate electricity from fluid motion. The device includes a first structural component, an outer housing, and a strain structure. The outer housing substantially circumscribes the first structural component and at least partially defines an annular space between the first structural component and... Agent: Oscilla Power Inc.
20110068582 - Multi-stack flywheel wind assembly: The present invention relates to a combination of flywheels or multi-stacked flywheels, ratchets or positive locking roller stops and speed activated clutches. The combinations allow the present invention to reduce the cut-in speed and reach rated speed sooner than existing technology, allowing the wind turbine to begin converting electricity sooner... Agent:
20110068581 - Rotating doors wind machine: The rotating door wind machine is built by attaching 2 or more door units to a vertical shaft. The wind force closes the doors and create a torque on the shaft thereby causing it to rotate horizontally and produce energy. This energy is then output to drive a load such... Agent:
20110068583 - Rotor-shaft integrated generator drive apparatus: A generator drive apparatus includes: a rotor shaft having a generally annular open end; a gear unit including a stationary member and a plurality of intermeshed gears, the gear unit disposed at least partially within the open end and drivingly coupled to the rotor shaft; and an electric power generator... Agent: General Electric Company03/17/2011 > 18 patent applications in 9 patent subcategories. listing by industry category
20110062724 - Hybrid solar collector and geo-thermal concept: The hybrid solar collector and geothermal system collects low grade heat energy derived from the sun. A simple heat engine converts this energy using conventional methods of power conversion. By exploiting the difference in temperature between the Hybrid Solar collector and the Geothermal heat sink, mechanical energy is converted into... Agent:
20110062721 - Integrated hydromethanation combined cycle process: The present invention relates to an integrated process for preparing combustible gaseous products via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen, a hydromethanation catalyst and optionally oxygen, and generating electrical power from those combustible gaseous products as well as a hydrogen and/or methane by-product... Agent: Greatpoint Energy, Inc.
20110062722 - Integrated hydromethanation combined cycle process: The present invention relates to an integrated process for preparing combustible gaseous products via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen, a hydromethanation catalyst and optionally oxygen, and generating electrical power from those combustible gaseous products.... Agent: Greatpoint Energy, Inc.
20110062723 - Polyphase transverse and/or commutated flux systems: Disclosed are single- and poly-phase transverse and/or commutated flux machines and components thereof, and methods of making and using the same. Exemplary devices, including polyphase devices, may variously be configured with an interior rotor and/or an interior stator. Other exemplary devices, including polyphase devices, may be configured in a slim,... Agent: Motor Excellence, LLC
20110062708 - Generator control having power grid communications: A system is provided for controlling power generation. For example, the system may include a drive, an electrical generator coupled to the drive, and a controller coupled to the drive. The controller may include a stabilizing mode responsive to a utility signal representative of a grid destabilizing event.... Agent: General Electric Company
20110062709 - Circuit and method for reducing a voltage being developed across a field winding of a synchronous machine: In an electrical power system of a diesel powered system having at least one diesel-fueled power generation unit, the electrical power system configurable in a starting mode for cranking the diesel fueled power unit, the electrical power system having a synchronous machine coupled to the diesel-fueled power generation unit, the... Agent:
20110062725 - Generator and carbon monoxide detector: A generator system and method are provided. The generator system including an internal combustion engine coupled to a generator. The internal combustion engine produces exhaust gases when operating. The system further includes a gas detector positioned in an enclosure into which exhaust gas may move. The detector is coupled to... Agent:
20110062710 - Multi-stage controlled frequency generator for direct-drive wind power: A multi-sage controlled frequency generator is described that has a low size, weight and cost. The new generator requires an electronic controller that requires only 25% of the total generated power (100%) when the generator shaft speed varies by +/−25% around its synchronous speed. The shaft driving the generator in... Agent: Honeywell International Inc.
20110062712 - Hybrid power generation cycle systems and methods: Methods and systems for the generation of electrical energy through the combination of steam flows produced from different fuel sources. Steam produced from processing of a biomass fuel source is combined with steam produced from the processing of natural gas or fossil fuel and routed through a steam turbine generator... Agent: Eif Nte Hybrid Intellectual Property Holding Company, LLC
20110062711 - Organic rankine cycle (orc) turbo generator for prevention of penetration of working fluid: An organic rankine cycle (ORC) turbo generator for prevention of penetration of a working fluid is provided, which can block penetration of the working fluid from a turbine into a generator, thereby improving the efficiency of power generation. The turbo generator comprises: a turbine including a turbine housing, a turbine... Agent:
20110062714 - Energy converter device: An energy converter device includes a reactive hydraulic power transformer (16) for converting periodic and variable hydraulic energy into coherent hydraulic energy. The device may also form a sub-system in energy converter systems for converting kinetic energy, for example from a wave (12), into electricity. The system has a power... Agent: Mactaggart, Scott (holdings) Limited
20110062713 - Wave energy absorber: A wave-power unit for extracting in an efficient way energy from waves on a water surface in different offshore conditions, including a main buoyant structure moored to the seabed with taut mooring lines and placed at a submerged, wave active depth, a linear generator placed within the buoyant structure and... Agent: Single Buoy Moorings Inc.
20110062715 - Submersible hydroelectric power generator and methods thereof: Embodiments of the present invention relate to an apparatus for generating usable electric power by harnessing continuous water flow from a river, stream or ocean and efficiently and perpetually generating electric energy therefrom. In one embodiment, a submersible hydroelectric power generator comprises a frame structure supporting a continuous track, a... Agent:
20110062720 - Control box for a wind turbine: The invention relates to a control box for arranging in a rotor hub of a wind turbine that can be rotated about a rotational axis. Such control boxes receive electrical components such as relays, inverters, sensors and the like, in the inner region thereof, which is defined by a wall,... Agent: Suzlon Energy Gmbh
20110062719 - Direct drive generator and wind turbine: A direct drive generator for a wind turbine is provided. The direct drive generator includes a stator arrangement and a rotor arrangement. The stator arrangement and/or the rotor arrangement include an at least partly flexible front and/or rear endplate. The endplate is at least partly made of fibreglass.... Agent:
20110062716 - Rotation magnetic bearing with permanent magnets, preferably for a wind turbine: An apparatus (1) for rotational motion about a rotational axis (14) of a first member (2) relative to a second member (3), the first member having an outer surface being rotational symmetric about the rotational axis, and the second member having a corresponding rotational symmetric cavity with an inner surface... Agent:
20110062717 - Urility grid vertical axis wind turbine system: A vertical axis wind system for generation and distribution of electrical energy to a utility grid is provided. The system includes a power pole electricity system supported by a plurality of ground-based upright support members. The electricity system is electrically connected to the utility grid. The support members include at... Agent:03/10/2011 > 19 patent applications in 9 patent subcategories. listing by industry category
20110057454 - Arrangement structure for control box and electric power converter in frame-mounted engine generator: In the context of a frame-mounted engine generator in which mounted within a frame (2) there are an engine (10), an engine-driven electric generator (11), an electric power converter (14) that converts generated electric power to a prescribed frequency, and a control box (17) having an internal control circuit board... Agent: Yanmar Co., Ltd.
20110057455 - Method and apparatus for hydrogen generation: A method and apparatus for generating hydrogen gas includes a reactor vessel in which electrolysis takes place in water, an electrical current source coupled to the reactor, and a chemical energy conversion device that converts chemical energy to electrical current by reacting hydrogen gas with oxygen gas. Conduits convey the... Agent: Innovative Energy Systems And Design, LLC
20110057456 - Drives for sealed systems: A drive for a sealed magnetically geared system comprising a housing defining a sealed chamber, a driving member including a first set of magnets, and a driven member comprising a second set of magnets, one of the members being located inside the chamber, wherein the first and second sets of... Agent: Magnomatics Limited
20110057457 - Method for operating a power rotary actuator and a power plant for carrying out said method: The invention relates to inertial systems for the accumulation and conversion of energy, and can be used as a power unit to drive various machines and vehicles. According to the disclosed method, a source of mechanical oscillations is used to generate an alternating rotational torque which is applied to the... Agent:
20110057459 - Electric current-generating and/or electric power-plant device on-board a sailing structure: The object of the invention is an electric current-generating and/or electric power-plant device (50) in a sailing structure comprising at least one power plant and at least one battery pool, whereby said power plant comprises at least one heat engine (18), a reducer/inverter assembly, and particularly a shaft line (22)... Agent: Nanni Industries, Sas
20110057458 - Piezoelectric energy harvester and method of manufacturing the same: Provided are a piezoelectric energy harvester and a method of manufacturing the same. The piezoelectric energy harvester is configured to obtain primary voltage from a piezoelectric layer vibrated to generate voltage and secondary voltage from a magnetostrictive layer vibrated to induce a change in magnetic field and a coil surrounding... Agent: Electronics And Telecommunications Research Institute
20110057441 - Overload control of an electric power generation system: A control system for an electrical power generation system (EPGS) provides overload protection without disconnecting a generator of the EPGS from an excessive electrical load. Available engine power and current levels of the electrical load are continuously measured. A command voltage is calculated that corresponds to a voltage required to... Agent: Honeywell International Inc.
20110057442 - Hydroelectric power generator and related methods: A hydroelectric power generator is capable of generating electrical power from a moving body of water. The power generator comprises a shell comprising a wall having interior and exterior surfaces, and an interior volume. A fixed gear is fixedly attached to the interior surface of the shell. A stationary shaft... Agent: Chaup, Inc.
20110057443 - Collector anti-wearing and lubrication system for variable speed wind turbine: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction... Agent:
20110057444 - Grid fault ride-through for current source converter-based wind energy conversion systems: Current source converter (CSC) based wind energy power conversion systems (WECS) and methods are presented in which a unified DC link current control scheme is employed to facilitate grid fault ride-through conditions, with a multiple-mode converter control system that combines the power flow control capabilities of the generator-side and grid-side... Agent: Rockwell Automation Technologies, Inc.
20110057445 - Method of operation of a wind turbine to guarantee primary or secondary regulation in an electric grid: The invention controls the network frequency via an active power reserve obtained by interacting in a coordinated manner with the speed regulation that acts on the power generated or on the pitch angle, to guarantee primary or secondary regulation across the whole range of wind speed.... Agent:
20110057446 - Wind turbine operation method and system: The invention relates to wind turbines provided with doubly fed induction generators and with at least one power converter which is novel in that, under certain circumstances, it enables the turbine to operate as a full converter (FC) system, as a doubly fed (DFIG) system or as an asynchronous (AS)... Agent:
20110057447 - Floating device for harnessing swell energy by lateral overflow: Floating device for harnessing swell energy by lateral overflow, said device being formed by hulls which converge in plan view and have a variable freeboard between which the waves propagate. The convergence produces a gradual increase in the height of the wave as it propagates between the hulls, which, together... Agent: Universidade De Santiago De Compostela
20110057448 - Wave energy converters: Wave energy, converters are arranged as a plurality of coupled float members arranged in a two dimensional array. Link couplings between any float member and its neighbors drive a mechanical system to convert the disorganized motion due to heaving and bobbing of the float member on the ocean's surface into... Agent:
20110057449 - Electromagnetic harvesting of fluid oscillations for downhole power sources: A downhole tool for generating power is provided that includes a conductive fluid disposed downhole within a tubular member, an energy harvesting apparatus, and a pressure changing apparatus. The energy harvesting apparatus includes a magnet configured to generate a magnetic field and an electrical conductor configured to move with respect... Agent: Schlumberger Technology Corporation
20110057452 - wind turbine having an airflow deflector: A wind turbine (10) comprising: a rotor (12), the axis of rotation extending longitudinally through said rotor (12); a plurality of blades (18) mounted to the rotor (12) to drive the rotor (12) in response to an airflow: and an airflow deflector (30) located for directing airflow through the rotor... Agent:
20110057453 - Tethered airborne wind-driven power generator: A tethered airborne wind-driven power generation device providing, in various embodiments, a main tether and plurality of auxiliary tethers, feedback controls for continuously adjusting pitch, roll and yaw, and a Vee-shaped configuration for disposing rotors along the frame of the device. The auxiliary tethers avoid slack and resultant transient instability,... Agent:
20110057450 - Wind assisted electric vehicle: A vehicle having an electric drive motor and a battery pack which provides power to the motor. The vehicle has panels that provide a wind tunnel when the vehicle is in motion, and a wind generator which is positioned inside or outside the wind tunnel to supply electricity to the... Agent:
20110057451 - Yaw bearing assembly for use with a wind turbine and a method for braking using the same: A yaw bearing assembly includes a first component having a first sliding surface and a second sliding surface, and a brake assembly coupled with respect to the first component and adjacent to at least one of the first sliding surface and the second sliding surface. The brake assembly includes a... Agent:03/03/2011 > 31 patent applications in 12 patent subcategories. listing by industry category
20110049906 - Apparatus for converting kinetic energy: Apparatus for converting kinetic energy into usable power (200), comprises a frame (204) arranged to be fixed in a vehicle running track (202) and a plurality of plates (211 to 219 inclusive, and 221 to 229 inclusive) mounted to the frame. Each plate being movable in relation to the frame... Agent:
20110049907 - Generator for rotor: Provided is a generator for a rotor, having a simple structure and being capable of enhancing power generation efficiency. A supporting member fixes or releases a slender shaft material to or from a rotor. Rotating members are disposed respectively at both ends of the shaft material 25 so as to... Agent:
20110049909 - Pneumatic mechanical power source: An mechanical power system provides torque without using a heat engine where fossil-fuel engines have conventionally been used, by replacing the fossil-fuel burning engine with a rotary pneumatic motor and feeding pressure-regulated compressed gas to the rotary pneumatic motor. The rotary pneumatic motor can be used anywhere, and requires preferably... Agent:
20110049908 - Systems and methods for providing multi-purpose renewable energy storage and release: A refrigeration unit or system is used to at least partially freeze water. The at least partially frozen water may then be separated into ice and water. The ice may be stored and allowed to melt, thereby providing an ice portion and a melted ice water portion. When energy release... Agent:
20110049880 - Idle-stop restart control system: The idle-stop restart control system includes: a sensorless synchronous motor-generator which operates as a generator and a starting motor; an induced-signal detecting circuit for detecting an induced signal output from an armature winding; a field drive circuit for controlling energization of a field winding; and a restart control circuit output,... Agent:
20110049881 - Method and device for the secured control of an alternator-starter assembly coupled to the thermal engine of a vehicle, and corresponding alternator-starter assembly and wire links: An electric control unit is used to generate control signals for the alternator-starter assembly on the basis of first information signals representative of a state of the vehicle and a control unit is used to generate control signals for power circuits on the basis of diagnosis signals representative of the... Agent:
20110049910 - Control device for vehicle: A motor generator is connected to a high voltage battery through an inverter. A voltage of the high voltage battery is decreased and is applied to a low voltage battery through a DC-DC converter. At time of starting an engine, a starting operation of a starter is executed by applying... Agent:
20110049882 - Device for charging at least one electrical battery on board a boat: A device for charging at least one electric battery (1) on board a boat comprises a propeller (2) adapted to immersed in water through the movement of the boat be driven to rotate a axle (3) and an electric direct current machine (8) connected to the axle and adapted to... Agent:
20110049886 - Device and method for detecting the loading of pivoted rotor blades: A method and a device for measuring the loading on rotor blades, especially of wind power plants with swiveling rotor blades, the loading of the rotor blades being determined by way of deformation of a bearing ring of the swiveling rotor blade takes place economically with proximity sensors, but can... Agent:
20110049890 - Method of reducing torsional oscillations in the power train of a wind turbine: The present invention refers to a method of reducing torsional oscillations in the power train of a wind turbine in the event of grid loss. According to the method, after the grid loss, a braking torque is applied to the power train during a period of time and said period... Agent:
20110049888 - Stress analysis device for wind-turbine structure, computer-readable storage medium storing stress analysis program, and wind turbine generator system: Provided is a stress analysis device 3 for a wind-turbine structure, which includes a load-data generating section 21 that generates load time-series data of a predetermined load observation point, set in the wind-turbine structure, on the basis of a parameter related to an operating environment, and a stress analyzing section... Agent:
20110049883 - System, device and method for wind turbine control based on operating profiles: A method for operating a wind turbine based on operating profiles for the wind turbine corresponding to operating modes. The method includes defining operating modes and acquiring a plurality of parameter values, each based on a reading from a sensor of the wind turbine. Each of the parameter values is... Agent:
20110049885 - Wind turbine control methods and systems: A method of controlling the operation of a variable speed wind turbine (11), tracking a power curve (25, 27) including a nominal operational region (3) and sub-nominal operational regions (2, 1, 0), comprising steps of: a) implementing a control strategy to follow said power curve in said nominal operational region... Agent:
20110049887 - Wind turbine data acquisition system: Sensor networks, methods and computer program products for state monitoring of a wind turbine. The sensor network may include one or more standard sensor modules each having a sensor for measuring a parameter of the wind turbine or its surroundings. The wind turbine includes a processor for receiving input from... Agent:
20110049889 - Wind turbine generator system: To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel to synchronizing the stator voltage with... Agent:
20110049884 - Yaw system for a nacelle of a wind turbine and wind turbine: A yaw system of a wind turbine includes a plurality of motors, each motor being coupled to the nacelle for applying torque to the nacelle; a plurality of controllers, one controller for each of the motors, each controller being configured to control the respective motor and coupled to at least... Agent:
20110049891 - Turbine engine including a reversible electric machine: A turbine engine, for example for a helicopter, the engine including a gas generator and a free turbine driven in rotation by a gas stream generated by the gas generator, the turbine engine further including a reversible electric machine for coupling to the gas generator, the reversible electric machine configured... Agent:
20110049892 - System for efficient energy generation: A system for generating energy may comprise a power source capable of supplying energy in the form of electricity to an electric motor. The electric motor is energized by the power source and will cause a drive shaft to rotate. The drive shaft is mechanically connected to an electric generator... Agent:
20110049893 - Air conditioning cover connecting exhaust to turbine: An apparatus in the form of a transfer unit for transferring exhaust air from the condenser unit of an air conditioning system to an air fan turbine for driving it. The transfer unit includes a plastic, sound absorbing cover shroud for covering the exhaust fan of the condenser unit; a... Agent:
20110049894 - Electricity generating assembly: An electricity generating assembly includes a first turbine having a first plurality of fan blades and a second turbine having a second plurality of fan blades. A first rotor is connected to the first turbine and rotatable with the first turbine. A second rotor is connected to the second turbine... Agent:
20110049895 - Method and apparatus for improved hydropower system: Methods and apparatus for improved power generation through movement of water retrofitting existing hydroelectric dams with draft tube inserts and tailrace walls to increase water velocity for production of power using hydrokinetic turbines installed in the tailrace. By initial design or by draft tube inserts and tailrace walls, increased and... Agent:
20110049898 - device for converting wave energy into mechanical energy: A wave power plant for extracting power from the wave movement of a water surface area, said wave power plant comprising a frame construction in which at least one rotor is journalled, and wherein the rotor is suspended in the frame construction on a rotor shaft which is, in the... Agent:
20110049896 - Hydrodynamic array: There are a large number of sites in the world's oceans and rivers that can provide a significant, viable, and cost effective source of renewable energy. Many are strategically located close to populated areas where these sites can be used to harness energy using ecologically benign hydrodynamic technology. A hydrodynamic... Agent:
20110049897 - Ocean energy system and method: A wave energy system and method are provided that have a main body that floats on the surface of the ocean and generates energy due to the motion of the crests and troughs of the ocean.... Agent:
20110049901 - A device and a method for downhole energy generation: The present disclosure relates to a downhole electrical energy generating device (105) and a method for transforming energy from a fluid flow (107) passing the device (105), including: at least one vibrating assembly (250) influenced by the fluid flow (107) to oscillate, the vibrating assembly (250) including an elongated body... Agent:
20110049899 - Air or liquid-driven alternator and electrical generator: An air or liquid-driven alternator and electrical generator includes: a closed-loop circuit; an inlet that allows a fluid to be introduced into the closed-loop circuit; a first fan, powered by the motor, that moves the fluid through the closed-loop circuit; and a generator having a second fan that is spun... Agent:
20110049900 - Method and apparatus for powering a device: A power harvesting device for use with a machine that includes a fluid intake path is described. The power harvesting device includes at least one blade and a shaft that is coupled to the at least one blade. The shaft and the at least one blade are positioned within the... Agent:
20110049902 - Air cooled brushless wind alternator: Low cost high output wind alternators are disclosed that may be made by modifying existing windmills. The wind alternators of the present invention are brushless alternators that provide high power output without the need to employ rare earth magnets. The low cost high output wind alternators of the present invention... Agent:
20110049903 - Apparatus and method for operating a wind turbine under low utility grid voltage conditions: The present invention relates to a wind turbine and an associated method for controlling the output current from said wind turbine to an electric power grid, and, more particularly, to a wind turbine and a method for controlling the current under conditions of grid voltage variations due to changing grid... Agent:
20110049905 - Generation of electric energy using cable-supported windmills: An electric energy generation system may include a plurality of windmills, a windmill support system, an electric generator, and a coupling system. The windmills may each be configured to transform wind energy into rotational energy. The windmill support system may support the windmills in positions that are spaced apart from... Agent:
20110049904 - Modular array fluid flow energy conversion facility: In embodiments of the present invention improved capabilities are described for the efficiency with which fluid energy is converted into another form of energy, such as electrical energy, where an array of fluid energy conversion modules is contained in a scalable modular networked superstructure. In certain preferred embodiments, a plurality... Agent:Previous industry: Knots and knot tying
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