A rotating system includes a motor including a shaft, an impeller configured to rotate with the shaft and located in a path of air, an alternator including a rotor configured to rotate with the shaft; and at least one secondary battery configured to be charged by the alternator. Rotation of the shaft is configured to be driven by either the motor or the impeller.

A device and method of acquiring mechanical energy by using a wind power generator employing sails is described. A sail is mounted on a towing carriage that is used for the rotation of a propulsion wheel of the mechanical gear is added. The towing carriage is connected to a strand and the strand transfers the force originated by the sail to the propulsion wheel of the power plant. The sail has the ability of adjustment of its angle position to the direction of the wind, the total exploitation cycle of the wind power generator employing sails consists of the working part during which the sail is moving along the direction of wind.

The present application discloses wind-powered charging systems and methods for an electric vehicle. The present system can be located within tube structure on the interior of a vehicle and can comprises one or more intake ports such that, when the car is in motion, air flows into the intake ports. The intakes ports are operatively connected to at least one wind turbine, each wind turbine having a self-contained alternator and blades, the alternator being located interior to the blades. In operation, the air flow from the intake port rotates the blades of the turbine to generate electricity (AC or DC electricity) in the alternator, which is used to charge one or more batteries of the vehicle. The electricity created in the alternator can be used to produce more than one voltage output such that batteries of different voltages can be charged simultaneously.

The invention is directed to a wind generator, comprising a wind turbine which is mounted so that it is rotatable about a horizontal or approximately horizontal rotational axis and which has one or more blades or other wind-guiding surfaces for converting flow energy of the wind into rotational energy, and at least one generator, coupled to the hub or shaft of the wind turbine or to the output shaft of a gear connected thereto, for converting the rotational energy into electrical energy, wherein the center of gravity of the wind turbine, together with the hub and rotor shaft and rotatable parts coupled thereto which rotate about the same rotational axis, is translationally movable in a direction completely or predominantly in parallel to the rotational axis of the wind turbine.

A multi-axial wave energy conversion device includes a carrier, a main body coupled to the carrier, a wave energy conversion assembly, a rotating mechanism, a lifting mechanism and a control unit electrically connected to the rotating mechanism and the lifting mechanism. The wave energy conversion assembly is coupled to the main body and includes an arm. The rotating mechanism is coupled between the carrier and the main body. The lifting mechanism is coupled between the arm and the main body. The control unit is for controlling the rotating mechanism to drive the main body to rotate relative to the carrier around a vertical axis for adjusting an orientation of the arm relative to the carrier, and further for controlling the lifting mechanism to drive the arm to rotate relative to the main body around a horizontal axis for adjusting an included angle between the arm and the main body.

A supercharging system to be mounted in a vehicle including an engine, a driving operator, and an electric power storage unit includes an exhaust turbine, an intake compressor, an electric power converter, and a controller. The exhaust turbine generates electric power. The intake compressor feeds compressed intake air to the engine. The electric power converter supplies electric power from the electric power storage unit and recovers electric power to the electric power storage unit via an electric power path between the exhaust turbine and the intake compressor. The controller acquires a target value of compression power of the intake compressor, based on an operation of the driving operator and an operating state of the engine, and controls the electric power converter such that electric power corresponding to a difference between the acquired target value and the generated electric power is supplied from or recovered to the electric power storage unit.

Certain embodiments of the present application relate to a variable frequency drive (VFD) cabin for a pump configuration including a mobile trailer on which the VFD cabin is to be mounted. The VFD cabin generally includes a medium-voltage VFD and a ventilation system. In certain embodiments, the ventilation system is configured to generate an overpressure condition within the cabin to discourage the entry of dust and debris into the cabin. In certain embodiments, one or more components of the medium-voltage VFD are coupled to the floor of the cabin via a vibration damping system. In certain embodiments, the VFD cabin may be directly coupled to a chassis of the mobile trailer without an intervening suspension being provided between the VFD cabin and the chassis.

An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A pump configuration includes a single VFD configuration, the single shaft electric motor, and the single shaft hydraulic pump mounted on the single pump trailer. The single VFD configuration converts the electric power at the power generation voltage level distributed from the power distribution trailer to a VFD voltage level and drives the single shaft electric motor to control the operation of the single shaft electric motor and the single hydraulic pump. The VFD voltage level is a voltage level that is required to drive the single shaft electric motor. The VFD configuration also controls operation of the auxiliary systems based on the electric power at the auxiliary voltage level.

An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A pump configuration includes a single VFD configuration, the single shaft electric motor, and the single shaft hydraulic pump mounted on the single pump trailer. The single VFD configuration converts the electric power at the power generation voltage level distributed from the power distribution trailer to a VFD voltage level and drives the single shaft electric motor to control the operation of the single shaft electric motor and the single hydraulic pump. The VFD voltage level is a voltage level that is required to drive the single shaft electric motor. The VFD configuration also controls operation of the auxiliary systems based on the electric power at the auxiliary voltage level.

Architecture that harnesses energy from natural atmospheric wind and water currents and self-generated wind and water currents from moving vehicles and natural fluid flow found in nature for moving or stationary applications. The power generation system harnesses energy from natural atmospheric sources utilizing pneumatic and/or hydraulic turbines with compound nozzles, meteorological sensors, computer controlled harmonic resonance valves, a control system, and other components.