Abstract: A stator segment of a stator of a dynamoelectric machine includes slotted laminations arranged axially one behind the other, such that substantially axially extending slots are formed. Coils are arranged in the slots, wherein one coil side or two coil sides of different coils are arranged in a slot. The laminations have at least one open slot on their outer boundary sides parallel to the slot. The coil sides are fixed in the open slots by an amagnetic fastener on the stator segment.

Abstract: A wind turbine including a rotor blade hub, a generator, and a magnetic transmission which is connected at the drive side to the rotor blade hub and at the driven side to the generator. The magnetic transmission is in the form of a multi-stage, in particular two-stage, magnetic transmission.

Abstract: A fluid flow device has a body with a mechanism for altering state of a fluid flowing through the device, an inlet conduit providing inlet of the flowing fluid to the body of the device, an outlet conduit providing outlet of the flowing fluid from the body of the device, and a micro-generator assembly installed in either the inlet conduit or the outlet conduit, the micro-generator assembly having an impeller driven by the flowing fluid, the impeller turning a shaft driving a generator producing a voltage across two output conductors.

Abstract: Methods, systems, and devices are disclosed for wind power generation. In one aspect, a wind power generator includes a support base; inductors positioned over the support base in a circular array; an annulus ring track fixed to the base support and providing a circular track around which the inductors are located; an annulus ring rotor placed on the annulus ring track and engaged to rollers in the circular track so that the annulus ring rotor can rotate relative to the an annulus ring track, in which the annulus ring rotor include separate magnets to move through the circular array of inductors to cause generation of electric currents; and a wind rotor assembly coupled to the annulus ring rotor and including wind-deflecting blades that rotate with the rotor and a hollow central interior for containing a wind vortex formed from deflecting wind by the blades to convert into the electric energy.

Abstract: The portable river turbine system is a small-scale electricity generator whereby boaters, fishers, or other individual entities can use the current of a river or other body of water to power or charge small electronic devices such as phones, lights, or radios. The detachable propeller or wheel is attached at one end of the waterproof turbine housing. The turbine can be secured by the side bolting, by the vertical hook, or optionally by both. Said vertical hook has a telescopic expandable shaft, allowing for the shaft to be the optimal length to best submerge the turbine wheel or propeller and still attach to a boat, dock, or other surface above the water's level. Stationed on the top of the waterproof turbine housing are quick connections that can be used for wires and handles.

Abstract: A yaw control device for a wind turbine, including: a vertical shaft; and, a vertical wing having a leading edge, a trailing edge, a first wing surface and a second wing surface, wherein the first wing surface extends between a first edge of the leading edge to a first edge of the trailing edge and wherein the second wing surface extends between a second edge of the leading edge to a second edge of the trailing edge; wherein the vertical wing is configured to receive the vertical shaft, and wherein the vertical shaft is biased toward the leading edge of the vertical wing; and wherein the vertical wing rotates about a longitudinal axis of vertical shaft and is configured such that the leading edge faces in the direction of an approaching wing.

Abstract: A turbine assembly includes a wind turbine defining a first axis as a vertical axis of rotation, an electric generator operatively connected to the wind turbine and configured to generate electrical power from rotational energy of the wind turbine. The wind turbine includes a first scoop and a second scoop conjointly defining a common interface plane and the scoops are displaceable relative to each other. The first and second scoops are arranged along a second axis running transversely to the first axis. A linear drive mechanism interconnects the first and second scoops for displacing the first and second scoops relative to each other along the second axis and the common interface plane. A control is connected to the linear drive mechanism for controlling the relative displacement of the first and second scoops.

Abstract: Systems and methods to generate electrical power through a direct drive wind turbine. In one aspect, the system uses a diffuser cuff surrounding a counter rotating turbine operating inside a streamlined center body, the counter rotating turbine using a generator with an iron sandwich core. The main wind turbine blades are attached to a barrel stave that increases generator efficiency and distributes loading through the tower support structure.

Abstract: Provided is a busbar arrangement for a wind turbine generator, the wind turbine generator including a stator and a rotor arranged to rotate around an axis. The busbar arrangement includes a plurality of busbars for transporting electric power away from the generator, wherein each busbar is arranged at an individual radial distance from the axis and at an individual axial position along the axis. Furthermore, a wind turbine and a method of manufacturing a busbar arrangement is provided.

Abstract: A floating plate type marine refrigerated container system capable of generating electricity by using wave energy that relates to ocean energy, including a machine room, retractable pipes, vertical rise-fall pipes, vertical connecting rods, floating plates, controllers, a rising-falling control button, an indicator light, push-pull handles, grooves, fixed supports, generator sets, wires, a storage battery, a connecting block, a machine room door, a heat dissipation window, sliding areas, a movable plate, a displacement sensor, hinges, sliding shafts, sliding groove groups and the electrical equipment of the refrigerated container. The wave energy in the vertically moving waves is collected by the floating plate, and converted into electric energy. The electric energy are gathered to the storage battery, and finally supplied to the electrical equipment of the refrigerated container.

Abstract: A wind turbine mountable to a motor vehicle preferably includes a wind blade, a turbine housing, an electrical generator and an electrical power converter. The wind blade preferably includes a plurality of blade elements, a top plate, a bottom plate and a support shaft. The turbine housing includes a turbine base plate, a turbine top plate and a peripheral side wall. A top shaft rotary bearing is retained in the turbine top plate. The electrical generator includes a generator rotor and a generator stator. The generator rotor is retained in the base plate. The bottom shaft thrust bearing is retained in the turbine base plate. The generator stator is mounted to the turbine base plate. The electrical leads of the generator stator are connected to an input of the electrical power converter. The electrical power converter converts the 120 volt AC signal to a suitable DC voltage.

Abstract: A wind turbine is presented. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes a superconducting generator coupled to the rotor via the shaft. The superconducting generator includes an armature configured to be rotated via the shaft. The superconducting generator further includes a stationary field disposed concentric to and radially outward from the armature.

Abstract: A hybrid electric propulsion system includes a gas turbine engine having a low speed spool and a high speed spool. The low speed spool includes a low pressure compressor and turbine, and the high speed spool includes a high pressure compressor and turbine. The hybrid electric propulsion system includes an electric generator configured to extract power from the low speed spool, an electric motor configured to augment rotational power of the high speed spool, and a controller. The controller is operable to determine a target operating condition of the low pressure compressor to achieve a compressor stability margin in the gas turbine engine, determine a current operating condition of the low pressure compressor, and control a power transfer between the electric generator of the low speed spool and the electric motor of the high speed spool to adjust the current operating condition based on the target operating condition.

Abstract: A device for collecting renewable energy includes two superposed caissons and the height of which is small in comparison with the expanse of the device which are floating or secured to a fixed or shoreline structure. A plurality of similar tubes with vertical axes is distributed over the expanse of the caissons, extending down beneath the caissons, open at their lower ends immersed in the water. Upper ends are inset into the caissons and have a valve that opens from the inside of the tube toward the upper caisson, and with a valve opening from the lower caisson toward the inside of the tube. Air is driven into the upper caisson by the rise in water level in some of the tube and conveyed through a turbine generator unit which produces electricity, then returns into the lower caisson suction into tubes in which the water level is falling.

Abstract: A wind turbine assembly including a rotor system, a generator, a first converter, a second converter, and a controller system. The first converter includes a first bridge circuit having a plurality of switch members each having a controllable switch. The second converter includes a second bridge circuit having a plurality of switch members each having a controllable switch. The controller system is adapted to provide a drying operation for second converter including short circuiting the second converter with the controllable switches of the second bridge in circuit, and supplying power from the generator through the first converter to the short circuited second converter for drying the second converter.

Abstract: A generator arranged to be driven by an aircraft engine. The generator including a rotor. The rotor includes an inlet for receiving a fluid, a plurality of outlets configured to release the fluid from a radially outer region of the rotor, and a fluid distribution arrangement arranged to direct fluid from the inlet to one or more of the plurality of outlets. The fluid distribution arrangement is configured to selectively distribute fluid to one or more of the plurality of outlets in dependence on an operational parameter of the rotor.

Abstract: Provided is a bearing arrangement for a wind turbine including a bearing housing and a drive shaft, whereby the drive shaft is arranged within the bearing housing in an axial direction along a longitudinal axis of the bearing housing. The bearing arrangement further includes a downwind bearing and an upwind bearing, whereby the downwind bearing and the upwind bearing are arranged between the bearing housing and the drive shaft. The bearing housing includes a drain outlet arranged in a bottom part of the bearing housing, the bottom part of the bearing housing being located underneath the drive shaft in a direction of gravity, whereby at least one inner side of the bottom part of the bearing housing is arranged so as to form a funnel, whereby the drain outlet is an opening of the formed funnel.

Abstract: An encased wind turbine has a casing, rotationally symmetrical in relation to the longitudinal axis and has the cross-section of an airfoil. The radially inner upper side delimits a flow channel. A guide element is rotationally symmetrical in relation to the longitudinal axis projects by part of its length, contrary to the direction of flow, over the casing. The propeller drives a generator, arranged in the housing, for generating electrical energy. The propeller viewed in the direction of flow, is located at least approximately at the guide-element trailing edge. Impinged on by the main flow of the wind, while a bypass flow, owing to the airfoil profile, generates a negative pressure downstream from the guide element and thus accelerates the main flow, is generated between the casing and the guide element. The propeller may be located downstream from the guide element and arranged to be adjustable in its longitudinal position.

Abstract: An energy farm having an electrical grid through which power generated by the devices in the farm may be combined and transmitted. The electrical grid is formed through the electrical interconnection of devices in a farm through electrical connections that remain, in whole or at least in part, adjacent to the surface of the body of water on which the devices float. A plurality of converters of the network have no direct or immediate electrical interface with a subsea power cable (i.e. a cable on or under the seafloor), but instead transmit electricity to other converters in a daisy-chained fashion.

Abstract: Apparatuses, systems, and methods are provided for generating power. A pipe having an input flow is coupleable to an input section configured to receive at least a portion of the input flow. A generation section is coupleable to the input section and includes a pipe section to carry the at least a portion of the input flow, a turbine coupleable to the pipe section and configured to capture energy from the at least a portion of input flow carried by the pipe section, and a generator coupleable to the turbine and configured to generate power from the energy captured by the turbine. An output section is coupleable to the pipe and configured to provide output of the generation section to the pipe.