Abstract: A wave powered hydraulic piston generator assembly for powering a generator by a hydraulic turbine and piston assembly includes a container being positioned adjacent to the shoreline of a body of water. The container has an opening having an interior surface where a piston is positioned against. A rod protrudes out from a back surface of the piston wherein an end of the rod has a first seal being moving within a cylinder. The cylinder has an inlet positioned proximate to the first end of the cylinder, whereas an outlet is positioned on a second end of the cylinder. A first conduit of a tank is connected with the outlet of the cylinder. A turbine is connected with a second conduit of the tank. The turbine has a drive shaft in mechanical communication with a generator. Furthermore, the turbine is in fluid communication with the inlet of the cylinder.

Abstract: An energy converter that utilizes compressed environmental air includes an air compressing unit, at least one first battery, at least one second battery, a plurality of direct current (DC) accessories. The air compressing unit includes a supply duct, a nozzle duct, a pressurized air tank, a compressor, a power-generating tube, and a plurality of air-flow generators. The compressor is in fluid communication with the supply duct. The pressurized air tank is in fluid communication with the compressor. The nozzle duct is in fluid communication with the pressurized air tank. The power-generating tube is in fluid communication with the pressurized air tank and nozzle duct. The plurality of air-flow generators is operatively coupled within the power-generating tube. The plurality of air-flow generators is electrically connected to the first battery that powers the plurality of DC accessories and is electrically connected to the second battery that powers the compressor via an inverter.

Abstract: A portable wind turbine, consisting primarily of a nacelle with collapsible blades for transportation is provided. Each of these collapsible rotor blades has been designed with an impellor, or propeller, twist. This is typical of wind turbine blades in order to maximize torque and reduce drag during operation, with the exception that said blades also conform to the nacelle's surface, which is one of a solid of revolution shapes, for transportation of the turbine. The described portable wind turbine assembly is accompanied with collapsible mounting apparatus, for internal or external storage to the turbine's nacelle, wholly or partially stored control electronics within the nacelle, as well as an optional energy storage component that is located internally or externally to the turbine's body. This turbine invention can be person-portable, deployed on vehicles, trailers, marine vessels and structures, above water, or used for locations where storm-strength winds are a risk.

Abstract: A wind turbine assembly include a housing, a turbine disposed in the housing and configured to rotate about an axis, the turbine including a rotor and a plurality of blades which protrude from an outer surface of the rotor, and a funnel configured to collect fluid stream energy through a fluid inlet opening and to direct at least a portion of the collected fluid stream energy into the housing and in a first direction toward the turbine, and the funnel and the housing are configured to rotate together about an axis independently of the turbine blades.

Abstract: In a hydrokinetic turbine-generator system having more than one turbine-generators aligned into a water stream for conversion of hydrokinetic energy to electrical energy, the improvement wherein the more than one turbine-generators are direct-drive electrical generators configured to control generator current such that residual torque on the system is balanced using electronic torque control.

Abstract: Disclose herein is a hydropower system for deployment in a natural body of water that has a at least one first cylindrical tube member disposed through a concrete block assembly and coupled to a turbine tunnel assembly designed to receive water from a natural body of water via gravitational forces acting on the water. At least one water intake with a vortex breaker is operationally coupled to the cylindrical tube member. At least one turbine generator assembly has a plurality of upwardly angled but non-vertical blade members extending therefrom around a central axis adapted to rotate an electric generator. At least one second cylindrical tube member is coupled to at least one injection hole member to at least one or more of a fault line, an underground water system, and a river system that impart energy to move the water back into the natural water cycle.

Abstract: A wind-powered generator includes a housing having an inlet, an outlet, and a throat that are coaxial about an axis of symmetry of the housing. A nacelle includes a first rotor mounted on a first end of the nacelle and positioned at least partially within the inlet, the first rotor outputting a first power output, and a second rotor mounted on a second end of the nacelle, the second rotor being positioned at least partially within the outlet and having a diameter less than the first rotor. The second rotor outputting a second power output. The first and second power outputs are combined to provide a combined power output, and a nacelle ratio between outer diameters of the nacelle at the inlet and at the outlet is between about 1.60-1.70, and a housing ratio between inner diameters of the housing at the inlet and at the outlet is about 1.85-1.97.

Abstract: A tidal current energy generating device includes a generator, a connecting shaft, an impeller and an adjustment assembly. The impeller includes an impeller hub and an impeller blade arranged thereon. The impeller hub is connected with the connecting shaft, and the generator is connected with the impeller hub. The impeller blade is driven under the action of a tidal current to drive the impeller hub to rotate synchronously around an axis of the connecting shaft, driving the generator to generate electricity. The adjustment assembly is connected with the impeller blade, and can be driven to swing under the action of the tidal current to drive the impeller blade to rotate around the axis of the impeller blade relative to the impeller hub, thereby adjusting the angle of the impeller blade.

Abstract: A wind turbine rotor includes an axle, a plurality of primary blades disposed at regular intervals around the axle, and a plurality of secondary blades disposed around the axle between primary blades of the plurality of primary blades. Each secondary blade of the plurality of secondary blades is smaller than each primary blade of the plurality of primary blades.

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 flexible 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: An electric propulsion system is provided which includes a prime mover; an electric generator which is arranged to be driven by the prime mover to generate electric power; an electric propulsion motor; and an integrated generator-motor controller arranged to control the supply of said electric power to the electric propulsion motor in response to a control signal. The integrated generator-motor controller is also arranged to feed-forward to the generator a power demand parameter associated with the control signal so as to control the power output of the generator.

Abstract: In a first aspect of the invention there is provided a generator for a wind turbine defining a central generator axis. The generator includes a stator support frame and an environmental conditioning module removably attached to the stator support frame. The environmental conditioning module includes a heat exchanger and an air mover supported by a module housing. The environmental conditioning module further includes fluid interface connections associated with the heat exchanger, the fluid interface connections being releasably connectable to a fluid supply system associated with the heat exchanger, and electrical interface connections associated with the air blower, the electrical interface connections being releasably connectable to an electrical supply system associated with the air mover.

Abstract: The electrical power generation system including a micro-turbine alternator. The micro-turbine alternator including a combustor, at least one turbine configured to be driven by an exhaust from the combustor, at least one compressor operably connected to the combustor to provide a compressed airflow to the combustor, one or more shafts connecting the at least one turbine to the at least one compressor such that rotation of the at least one turbine drives rotation of the at least one compressor, and a recuperator configured to transfer heat from the exhaust exiting the at least one turbine to the compressed airflow from the at least one compressor entering the combustor.

Abstract: Provided is a method of controlling at least one wind turbine in case of a rotational overspeed situation, the method including: determining a current state related to the wind turbine; providing data related to the current state as input to a turbine model; predicting a load of at least one wind turbine component and power output of the wind turbine using the turbine model provided with the input for plural control strategies; comparing the predicted load and power output for the plural control strategies; and selecting that control strategy among the plural control strategies that satisfies a target criterion including the load and the power output.

Abstract: A plenum resident wind turbine sustainable energy generating system is disclosed. An example embodiment includes: a wind turbine assembly installed in a plenum of a heating, ventilating, and air conditioning (HVAC) unit, the wind turbine assembly including a plurality of blades and a transverse shaft; and a generator coupled to the shaft of the wind turbine assembly.

Abstract: An electric generator includes a process gas inlet on a downstream side of the flow control valve to receive process gas into the electric machine; a rotor shaft including a node position, the node position defining a position of a node of a first bending mode of the rotor shaft; a turbine wheel coupled to the rotor shaft at the node position, the turbine wheel configured to receive process gas and rotate in response to expansion of the process gas flowing into an inlet of the turbine wheel and out of the outlet of the turbine wheel, the rotor shaft configured to rotate with the turbine wheel, and a stationary stator, the electric generator to generate an alternating current upon rotation of the rotor within the stator. The turbine wheel selected from a plurality of turbine wheels based on the operational conditions of the electric generator.

Abstract: Techniques are disclosed where a plurality of bladed shafts are arranged in an adjacent relationship to one another within a frame. The blades of the shafts are capable of interacting with moving air and causing rotation of the shafts. Rotational energy of the shafts is converted to electrical energy by electrical equipment stored within a portion of the frame. The electrical energy is conditioned and output as usable electrical power.

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.

Abstract: Provided is a renewable power generating system including a motor and one or more generators. Each of the motor and the generators comprises a front extended shaft and a rear extended shaft, a first flywheel is installed at the end of the rear extended shaft, and a second flywheel is installed at the end of the front extended shaft. Also, a third flywheel is detachably connected to the second flywheel, and a turbine installed on the third flywheel, and the turbine comprises multiple arms. The first flywheel, the second flywheel and the third flywheel rotates together when the motor rotates, and the system can produce an electric power when rotating.

Abstract: A system and method for a for a wave energy converter device that is an axisymmetric point absorber which operates in a tension only condition over a large stroke that can operate in the given wave environment so as to eliminate the need for end stops in normal operation whereby the wave energy converter device has a floating hull with an interior Power Take Off (PTO) that uses an impedance control scheme for impedance matching with the wave environment in which it is deployed so as to maximize electrical power output as compared with a passively operating device of similar size.