A lift assisted magnetic power device is disclosed in which rotational energy is converted into an electrical current. The device, in a preferred embodiment, includes a stand with a rotatable central axis, a plurality of cylinders having a first extremity attached to the central axis and a second extremity extending outwardly. At least one magnet is contained within each one of the cylinders. The magnet(s) are free to move along the cylinder between positions located proximate to both the first extremity and second extremity. A coil surrounds the cylinders to generate an electrical current as the at least one magnet passes through the coil. A connection is provided to carry the electrical current from the coil to a circuit or power source.

An electrical generator (114) and a power electronics interface (115) for a direct-drive turbine (110). The turbine (110) may include a rotor (112) for transforming kinetic (from, e.g., wind, water, steam) into mechanical energy, the generator (114) for transforming the mechanical into electrical energy, and the power electronics interface (115) for conditioning the electrical energy for delivery to a power distribution grid (124). The interface (115) includes a three-phase single-stage boost inverter (120) for converting a lower DC voltage into a higher AC voltage, and which uses a synchronous reactance of the generator (114) as a DC link inductance. The turbine (110) has neither the gearbox of indirect-drive designs nor the electrolytic capacitor bank of conventional direct-drive designs, while still allowing for a substantially smaller number of generator poles, resulting in reduced size, weight, complexity, and cost.

A wind turbine comprises a permanent magnet synchronous generator, a main converter, a main converter controller, a wind turbine master controller and an electrical power supply stage comprising an electrical energy storing device. A startup of the wind turbine can be performed using electrical energy from the electrical energy storing device independent from a power supplying grid and/or a combustion engine. After startup, the wind turbine can be operated in an island mode by controlling an intermediate voltage of the main converter by the main converter controller and retrieving power from the synchronous generator independent from the electrical energy storing device.

The invention describes a method for more efficient way of obtaining mechanical work and/or power generation from fluid flows with the oscillating motion of the blade and the counterweight in a direction that is perpendicular to the flow of fluid in conjunction with a smooth and periodic change of the angle of the blade to the flow of fluid over the sine wave which is characterized by being carried out by: rotating the surface of the blade to the direction of the fluid's flow and/or; changing the amplitude of the oscillation of the blade with respect to the fluid's flow rate and/or; changing the amplitude of the angle of the blade with respect to the fluid's flow rate; capturing mechanical work in the form of torque or tensile/compressive force to propel attached machinery or generate power from the arm of the counterweight. The invention further describes the apparatus to carry out this method.

A method and apparatus for generating electrical power are disclosed. The method includes the steps of turning turbine blades of at least one turbine provided at a region of a subsea pipe or umbilical via a respective motion of seawater through a swept area associated with the turbine blades and generating electrical power responsive to turning of the turbine blades.

Wind power generation device, the inner surface of the front sleeve is fastened to the outer surface of the outer ring of the bearing II, and the inner surface of the inner ring of the bearing II is fastened to the rotary axle, the rotary axle passes through the center of the magnet, The outer surface of the end of the front sleeve is provided with a electric brush, the front end of the electric brush is provided with one end of the winding coil, the winding coil is filled with a magnet, the outer surface of the rotary axle is fitted with a rear sleeve, The inner surface of the rear sleeve passes through the rotary axle, the device which was invented used to generate electricity.

A hydroelectric energy system includes a stator comprising a first plurality of electricity-generating elements. The system also includes a rotor comprising a second plurality of electricity-generating elements. The rotor is disposed radially outward of an outer circumferential surface of the stator and is configured to rotate around the stator about an axis of rotation. The rotor is a flexible belt structure having a variable thickness and extending along a portion of an axial length of the stator. The system further includes at least one hydrodynamic bearing mechanism configured to support the rotor relative to the stator during rotation of the rotor around the stator. The at least one hydrodynamic bearing mechanism includes a bearing surface made of wood or a composite material.

An oceanographic sensor mooring section for use with standard oceanographic moorings comprising: mooring oceanographic equipment, such as floatation devices and sensors; and a subsurface power generation unit connected to the mooring oceanographic equipment, wherein the mooring section has connective swivels at opposing ends thereof for attachment of the mooring section to standard oceanographic moorings, mooring lines, or mooring anchors, to allow the mooring section to independently orient in the direction of current flow. The subsurface power generation unit comprises a battery and power management/tracking electronics and a rim turbine generating unit that harnesses the power of underwater currents to power any sensors and related electronics equipment.

A water flow turbine arrangement is disclosed which can be used for capturing energy from water flows. The arrangement comprises: a base member (212): a generally open support structure (210) mounted to the base and upstanding therefrom, the support structure including plural legs (216) joined by a cross brace at or adjacent their upper ends; an electrical generator (230) mounted to the base; and shaft mounted turbine blades (220) mounted for rotation generally within the space occupied by the legs about a turbine axis. The turbine shaft (222) is supported at its upper end by the cross brace and is coupled to the generator at its lower end by a magnetic torque transmitting coupling, allowing complete fluid sealing of the generator's housing.

Wave energy converter systems include a housing comprising a field coil array and a permanent magnet array within the housing configured to induce an electrical current in the field coil array. One or more peripheral magnet arrays are arranged around the housing and couple magnetically with the permanent magnet array. The peripheral magnet arrays cause the permanent magnet array to move within the housing in response to motion of the one or more peripheral magnet arrays and provide a magnetic shielding effect.