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8633604 Engine  
An engine is provided that utilizes an active heat exchanger such as a heat pump to transfer heat into and remove heat from a low boiling point liquid that is disposed in a pair of diametrically...
8633727 Power generation system and sensing system  
A power generation system includes a support unit configured to support a power transmission line disposed on a transmission line tower, and a power generation unit. The support unit includes a...
8633610 Systems and methods of harvesting energy in a wellbore  
A system to harvest energy in a wellbore is disclosed. The system includes a flexible member disposed in a wellbore. The flexible member includes at least a portion of a drill string. The system...
8633607 Method, park controller and program element for controlling a wind farm  
The disclosure relates to a method for controlling a wind farm, the wind farm includes at least two wind turbines, the method includes determining the required power, determining fatigue load...
8629570 Wind turbine blades with reinforcing, supporting and stabilizing components and enlarged swept area  
A rotor assembly for a horizontal-axis wind turbine with blades support attachments. Each end of the supporting elements is fixedly or rotatably attached to one blade. In a new and improved...
8629571 Power generation hydraulic system  
A power generation system 1 comprising a first water container, a hydropower system, a second water container and a pump system. The hydropower system 2,3,4 harness water energy coming from the...
8627914 Energy recovery drive system and vehicle with energy recovery drive system  
Vehicles of embodiments of the invention are propelled by an electric motor (DC or AC motor) coupled to one of the vehicle's axles. The electric motor is powered by two or more electrical storage...
8629572 Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof  
Various embodiments of linear electric generators and arrangements thereof are disclosed. One such generator includes a permanent magnetic array with magnets that are oriented such that like poles...
8629569 Electromechanical generator for, and method of, converting mechanical vibrational energy into electrical energy  
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising an electrically conductive coil assembly and a magnet...
8631275 Controller arrangement of an electrical power transfer system of a wind turbine  
A controller arrangement of an electrical power transfer system (1) of a wind turbine is described. The wind turbine has an electrical generator and is connected to an electrical power grid,...
8624423 Blade configurations for wind power converting apparatus  
A wind power converting apparatus that includes a rotor unit. The rotor unit includes a rotary blade assembly and a cover. The rotary blade assembly has a rotary blade disposed in the longitudinal...
8624410 Electricity generation device with several heat pumps in series  
The device for generating electricity (1) comprises: a first heat pump (3) provided with a first closed circuit (15) in which a first heat-transfer fluid circulates, and with a first heat exchanger...
8624415 Multi-rotor generator  
A generator system comprises an inner generator rotor, an outer generator rotor, and a stator. The inner rotor is mounted on the first shaft rotating at a first speed, while the outer rotor is...
8624447 Electrical energy-generating device and remote control equipped with such a device  
An electric power-generating device (1) comprising a movable portion forming a magnetic circuit fitted with a core (5) and branches (11, 12, 13, 14) coupled magnetically to the said core, a fixed...
8624409 Shock absorber electrical generator  
The shock absorber electrical generator includes a piston adapted for reciprocating motion within a cylindrical piston chamber as a vehicle's suspension system deflects. A working fluid is...
8624413 Regeneration energy type electric generation apparatus and its rotor fixing method  
Described is a power generating apparatus and a rotor locking method for the apparatus, which is capable of locking the rotor without using a huge braking mechanism. The power generating apparatus...
8624419 Downhole power generation by way of electromagnetic induction  
Electrical power may be generated at a downhole position of a production well by way of electromagnetic induction through oscillating linear translation driven by the flow of a fluid being...
8624564 Switched reluctance generator initial rotor position estimation  
A method of estimating rotor speed of a generator 106 having a rotor 110 and a stator 112 is provided. The method may provide a source current to the stator 112, determine a relative rotor speed...
8624422 Method of controlling a variable speed wind turbine  
in a method of controlling a variable speed wind turbine, said wind turbine comprising a double-fed asynchronous generator having rotor windings and stator windings and means for controlling the...
8624416 Offshore combined power generation system  
A combined offshore system for generating electricity includes of an offshore windmill unit with a generator for extracting power from wind and transferring it into electricity, a electricity...
8621840 Control device and method of a gas turbine electric energy production plant  
A control device of a gas turbine electric energy production plant (1), which delivers a power (P) at a frequency (fl); the control device (8) comprising power control means (15), for controlling...
8624420 Turbine system and method  
Some embodiments of a turbine system described herein provide a turbine that rotates in response to off-axis fluid flow, such as water flowing in a generally horizontal direction that is generally...
8622719 Hydraulic pump structure for wind turbine generator or tidal current generator and method of mounting hydraulic pump  
A hydraulic pump unit includes a cylindrical member that is fit into an outer circumference of the main shaft and a hydraulic pump body arranged on an outer circumferential side of the cylindrical...
8622698 Rotor-sector based control of wind turbines  
Blades of a wind turbine attached to a rotor hub for rotation in a rotor plane may be adjusted by a control system for individually pitching the blades relative to the hub. The rotor planes divided...
8621856 Hydraulic drive train with energy dissipation for electricity generation  
A hydraulic drive train with energy dissipation for electrical generation. A hydraulic pump is provided in the nacelle of the windmill and powered by the wind turbine shaft. This hydraulic pump...
8624412 Locking device for the rotor of wind turbines  
The invention relates to a wind turbine comprising a tower, a nacelle that is located on the tower and is provided with a machine support, a rotor shaft bearing and a generator, and comprising a...
8624414 Method and device for controlling a steam power plant  
A method for controlling a steam power plant is provided. The method includes the steps of providing a first signal showing a reduction of the current power level of the generator, generating a...
8624417 Method and apparatus for harnessing hydro-kinetic energy  
Apparatus and method is disclosed for generating usable power derived from oscillatory hydro-kinetic energy available in the movement of waves having a given height and being spaced apart by a...
8624411 Power generation system including predictive control apparatus to reduce influences of weather-varying factors  
A power generation system (10) for generating electrical power, which may vary in response to one or more weather-varying factors (11). The system may include an array of power generators (12)...
8624418 Device for converting wave energy into electricity  
A device for converting wave energy into electricity, the device including: a float; a guiding-accelerating wheel, the guiding-accelerating wheel including a wheel body including a casing, a wheel...
8624421 Infrastructure for driving and assisting 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...
8618682 Looped airfoil wind turbine  
Looped AirFoil Wind Turbine (LAWT) (10) is a novel wind turbine with a basic system of a triangular structure (14) utilizing both lift and drag aerodynamic forces produced by wind energy. The...
8618688 Wind turbine configuration with power cable and method of electrically connecting a generator of a wind turbine to a transformer  
A wind turbine configuration is constructed with a power cable having an electrical conductor with a plurality of copper clad aluminum strands that are highly flexible. The power cable includes a...
8618685 Method for operating a wind turbine in the event of a grid error and a wind turbine for carrying out said method  
The invention is directed to a method for operating a wind turbine in the event of a grid error. The wind turbine has a rotor having a rotor blade adjustable in its blade pitch angle, a generator...
8618680 Spaced-apart cable modules in wellbore energy storage and retrieval  
A system for storing and retrieving energy may include a cable and a weight connected to the cable. A plurality of cable modules may be attached at spaced-apart locations to the cable above the...
8618689 Wind power turbine for generating electric energy  
A wind power turbine configured to generate electric energy, having a supporting structure; a nacelle; a blade assembly rotating with respect to the nacelle; a first and second electric machine...
8618683 Electrical generator system for capturing wind energy on a moving vehicle  
A system is disclosed for an electrical generator system for a vehicle. The system includes a wind turbine, an electrical generator mechanically connected to the wind turbine and configured to...
8616830 Hydraulic power generating apparatus  
The apparatus includes a water collecting plate 6 which collects water into a water inflow opening 8 while intercepting and accumulating water flowing through a waterway, and a movable gate 5 which...
8620634 Energy resource allocation including renewable energy sources  
A computer implemented method includes providing information related to wind speed and direction prediction to a wind turbine energy prediction module, providing wind energy production prediction...
8618681 Inverter generator control apparatus  
In a control apparatus for an inverter generator having a generator unit driven by an engine, a converter connected to the generator unit to convert an alternating current from the generator unit...
8616829 Shrouded turbine assembly  
A turbine that allows for the conversion of the kinetic energy of waterway to mechanical power for use in an energy accepting apparatus is described. The turbine has complimentary components that...
8618686 Wave power generator  
The present invention relates to a wave power generator, and more particularly, to a wave power generator that has comparatively high energy conversion efficiency, so that it can induce active...
8618684 Method for operating a wind turbine  
A method is provided for operating a wind turbine with a rotor having a rotor blade adjustable in its blade pitch angle. A generator is connected to the rotor and a measurement unit captures an...
8618690 Wind power turbine combining a cross-flow rotor and a magnus rotor  
A wind power hybrid rotor of a wind power plant for converting wind energy into drive energy is provided. For a utilization of the wind energy in a manner as efficient as possible, a wind power...
8618687 Water inlet generator  
A swimming pool water inlet generator operable to allow the generator to be attached to a swimming pool water inlet, a turbine assembly arranged and operable to generate electricity when water...
8613194 Tri-energy power generating device  
A tri-energy power generating device uses the light energy, the thermal energy and wind energy from the nature and transfers these energies into electric power so as to obtain environmentally...
8614521 Device for converting wave energy into useable energy, particularly electrical energy, and associated method  
The invention relates to a device (1) for converting the energy of the swell and of waves into useable energy, particularly electrical energy, comprising a float element (2), an oscillating element...
8614522 Energy converting device  
An energy converting device, particularly for converting mechanical energy to hydraulic energy and from it into electrical energy, uses as an energy transport medium, a control fluid guided in two...
8614520 Submergable sloped absorption barrier wave energy converter  
An ocean wave energy converter uses one or more buoyant elongated float(s) self orienting toward oncoming wave fronts and movably affixed to a motion stabilized controlled buoyancy frame by down...
8614519 Electric power storage power plant  
An electric power storage power plant that utilizes an existing electric power source to capture and store electricity, and then instantly retransmit it on demand, is disclosed. An electric motor...