Abstract: A system includes a first coil mechanically coupled to a first component and electrically coupled to a power source. The system further includes a second coil mechanically coupled to a second component and configured to receive power from the first coil via a magnetic field. At least one of the first and second components includes a rotatable component. The system also includes a field focusing element disposed between the first coil and the second coil and configured as a self resonant coil having a standing wave current distribution to focus the magnetic field onto the second coil and enhance the coupling between the first coil and the second coil.

Abstract: A wind turbine electrical generator may include a monopole tower extending upwardly from ground level. The wind turbine electrical generator may also include an electrical power generator carried by an upper end of the monopole tower and may include a horizontally extending drive shaft. The wind turbine electrical generator may further include a plurality of wind-driven blades carried by the horizontally extending drive shaft. The monopole tower may have an outer surface with a vertically extending outer corner therein defining a pair of adjacent vertical facets. The monopole tower may be positioned with the vertically extending outer corner aligned with the land-based radar site so that the pair of adjacent vertical facets reflects radar illumination away from the radar site to reduce an amount of the radar illumination reflected back to the land-based radar site.

Abstract: A deep off-shore floating wind turbine apparatus and methods of manufacturing, operating, maintaining, protecting and conveying the wind turbine apparatus. The wind turbine includes a rotor converting a motion of air into a movement of the rotor, a hub housing equipment that transforms the movement of the rotor into a useful form of energy, and a tower supporting the hub on one end. The wind turbine further includes a base floating substantially at water surface and movable with respect to the underlying solid surface. The tower is connected to the floating base on the second end. The wind turbine also includes a tilting mechanism tilting the wind turbine into a substantially horizontal orientation and bringing it back into an upright position, as well as a rotating mechanism operable to control azimuth orientation of the wind turbine.

Abstract: Systems and apparatuses for delivering power and energy using deflecting beams or other oscillating members motivated to oscillate a beam assembly using an eccentrically balanced rotating body that induces deflections in the elastic beam or other oscillating member. One or more rotors may be used on the elastic beams and a mechanical output or outputs are connected to the elastic beams. The rotating body is advantageously maintained in rotation by pulses of electro-magnetic force. The oscillating beam or members are preferably driven at a natural resonant frequency to minimize losses and render more efficient the output which can be obtained. The pulse motor or motors can be powered using stored electrical energy, such as may be generated from solar panels, wind generators or other energy storage devices. One or more outputs may be used to drive heat pumps, compressors, pumps or other equipment to assist in independent energy systems.

Abstract: A wind-driven generator whose yaw system (10A) installed at the upper part of a support (2) is reduced in the number of its components and weight. The wind-driven generator has the yaw system (10A) equipped with a yaw driving device (30), a yaw slewing ring, and a yaw brake and slewing a nacelle installed at the upper part of the support (2) according to the direction of the wind. A yaw slewing ring fixed to a nacelle table plate (12) through a bracket (23A) having a nearly L-shaped cross section functions as the slide bearing (20A). Thus, the slide bearing (20A) slidably supports a flange part (2a) formed at the upper end of the support (2) with slide pads (22) held by the bracket (23A).

Abstract: The wind turbine 20 includes a wind driven turbine wheel 22 rotatable about a central axis 29 that has sail wings 30 that catch the wind and rotate the turbine wheel 22. An anchor 58 has its anchor line 56 attached to the turbine wheel at its axis of rotation 29 to prevent tilting the wind turbine in response to high wind conditions.

Abstract: An approach for reduction in generator-sourced fault current contribution is disclosed. In one aspect, automatic excitation control of a generator is coordinated with a generator step-up transformer operating on maximized tap selection to reduce generator fault current contribution to an electrical power distribution network.

Abstract: An apparatus for wind energy conversion includes a nacelle having a main frame, the main frame having a lower part and an upper part joined to the lower part, the upper part having a first strap extending across the lower part; a stator disposed within the nacelle; a rotor disposed within the nacelle; a mounting surface attached to the main frame and defining a rotor space, the mounting surface having a first side-face that exposes the rotor space; and a flange rotatably supported on the main frame and including a first end connected to the rotor. The rotor is cantilevered from the flange into the rotor space from the first side face.

Abstract: An integrated system of communicating energy storage devices for supplying an alternate power source to operating systems for a wind turbine connected to an electrical grid, is provided. The integrated system includes at least one wind turbine with a rotor, the wind turbine being connected to an electrical grid. At least one operating system of the at least one wind turbine requires an alternate power source during a wind turbine operating condition. Further included are a plurality of energy storage devices capable of supplying the alternate power source. Communication of energy storage between at least two of energy storage devices is provided.

Abstract: According to some embodiments, a plurality of airborne bodies may each extend horizontally along an axis between a first point and a second point. Each body may be, for example, at least partially filled with a gas and two or more vanes may be provided airborne with each body such that the vanes, when acted upon by a wind force perpendicular to the axis, are operable to cause rotation about the axis. Moreover, one or more electrical generators may be airborne with each body to convert rotational energy produced by the rotation about the axis into electrical energy.

Abstract: Devices and methods for capturing electrical energy from ocean and other waves at improved cost and efficiency are presented. The major innovations include capturing energy in two vectors simultaneously and connectedly, new applications of Bernoulli's principle, and an application of the breaker effect. The invention presents devices using related principles for use in surface and subsurface waves, and the placing of the devices in the water and wave farms. The full system of wave capture includes many connected parts and power generators.

Abstract: A tubular housing includes at least one fixed helical vane formed onto the inner surfaces of the tubular housing in a spiral and adapted to direct fluid into a spiraled flow and focus fluid onto a fan blade assembly associated with an alternator system and located within the tubular housing before a system exhaust. A generator cone can be mounted near the center and front of the fan blade assembly facing fluid passing through the tubular housing. As fluid passes over the generator cone it experiences compression between the generator cone and housing resulting in increased pressure and velocity of the fluid, thereby increasing rotational speed of the generator blades and generator as the compressed, spiraled fluid passes through the blades and exits the tubular housing. The system can be used for fixed or mobile applications in water, wind and manually induced fluid flow.

Abstract: The wind turbine 20 has sail wings 92 that catch the wind and rotate the turbine wheel 22. The sail wings may be twisted about their longitudinal axis 94 to form pitch and twist in the said wings. A generator is movably positioned in an arc of movement of the turbine wheel and adjusts to the lateral movement of the turbine wheel. Air and liquid cooling is provided to the coils of the rotor and stator of the generator.

Abstract: An ocean wave energy extractor includes a first flotation device that contains a second flotation device and a mechanism for extracting energy. The wave energy extractor floats in seawater and extracts energy from waves. A propagating wave rotates the first flotation device relative to the second flotation device. The mechanism is connected to both flotation devices and generates energy from this relative rotation. In one example, a first flotation device includes a spherical chamber with a flotation collar, and a second flotation device supported by a joint at a center of the chamber. A wave approaching from any direction rotates the first flotation device relative to the second flotation device, and a mechanism for extracting energy generates electrical energy from the relative rotation. The chamber shields inner components from seawater and adverse ocean conditions. The wave energy extractor need not be moored to a location to extract energy from waves.

Abstract: A wind power generator. The wind power generator includes a generator main body formed of fiberglass reinforced plastics (FRP). Built-in fans having blades are connected to four built-in fan motors to generate high pressure air to be ejected to the exterior so that an inductor including magnets is primarily and relatively rotated with respect to a rotor including a rotating shaft to induce electromotive force. In addition, high air (reproduced energy) discharged to the exterior from the built-in fans is acted on the propeller installed behind the rotor including the shaft to rotate the rotor in a reverse direction of the rotational direction of the generator main body, thereby maximizing electromotive force of energy.

Abstract: Utilisation of a number of electrical machines such as generators all driven by a common prime mover, such as a gas turbine engine, are known. However, faults in one phase of one particular electrical machine may cause torque vibration and therefore stressing to mechanical linkages between the electrical machine and the prime mover. By determining torque vibration and then utilising a second electrical machine to introduce an anti-phase torque vibration a substantially balanced and steady torque loading to the mechanical linkages can be achieved.

Abstract: A power generator has a mass that is capable of moving vertically up and down. A generator has a rotor and a stator. A shaft couples the mass to the rotor, with the shaft allowing the mass to move vertically up and down. The shaft has spirals that produce relative rotation between the shaft and the rotor. The mass can float on a body of water that is subject to fluctuating water levels, such as a tidal body or a lock, or the mass can be used on dry land. The mass has an interior cavity. When the cavity contains gas, the mass rises in the water. When the cavity contains water, the mass sinks in the water. When the mass has sunk, gas is introduced into the cavity. When the mass has risen, the gas is vented from the cavity.

Abstract: A method for controlling an operation of a wind turbine. A meteorological condition is received from a meteorological sensor. An operating threshold value is calculated at least in part by applying a continuous function to the meteorological condition. An operation of the wind turbine is controlled based at least in part on the calculated operating threshold value. For example, the wind turbine may be disabled if a current wind speed exceeds a maximum wind speed that is calculated based on an ambient air temperature or ambient air density.

Abstract: In various embodiments, an apparatus for producing electricity includes a plurality of hydraulic-to-electric converters with each hydraulic-to-electric converters including a hydraulic motor coupled to a common high-pressure hydraulic line and a common low-pressure hydraulic line, a controllable hydraulic switch hydraulically coupled to each respective hydraulic motor, each controllable hydraulic switch being capable of controllably placing the respective hydraulic motor on-line by allowing flow of hydraulic fluid from the common high-pressure hydraulic line through its respective hydraulic motor or off-line by preventing flow of hydraulic fluid from the common high-pressure hydraulic line through its respective hydraulic motor, and an electric generator mechanically coupled to each respective hydraulic motor and configured to generate electricity when hydraulic fluid flows through the respective hydraulic motor.

Abstract: A wind turbine electrical generator may include a monopole tower extending upwardly from ground level. The wind turbine electrical generator may also include an electrical power generator carried by an upper end of the monopole tower and may include a horizontally extending drive shaft. The wind turbine electrical generator may further include a plurality of wind-driven blades carried by the horizontally extending drive shaft. The monopole tower may have an outer surface with a vertically extending outer corner therein defining a pair of adjacent vertical facets. The monopole tower may be positioned with the vertically extending outer corner aligned with the land-based radar site so that the pair of adjacent vertical facets reflects radar illumination away from the radar site to reduce an amount of the radar illumination reflected back to the land-based radar site.