Abstract: A pendulum combining balanced and eccentric masses oscillates with a period that is rapidly and continuously varied by shifting the balanced masses and eccentric mass to and from the rotational axis, by controlling the amplitude of oscillation and, in a rolling embodiment, by varying the curvature of the rolling surface. Long period oscillations can be achieved without the large heights required by an equivalent conventional pendulum. The pendulum can be substantially isochronous. The pendulum can be applied to harvesting vibrational energy and especially to wave energy extraction by dynamically achieving resonance over the typical frequency range of energetic ocean swell.

Abstract: A vehicular wind power generator for being installed on a vehicle includes a main body, multiple blades, two stands assembled to the main body, and a maglev unit. The main body has a power-generating unit including a stator and a rotor, between which a bearing is provided. The stator and the rotor are rotatable with respect to each other, and are provided with multiple induction windings and multiple magnets respectively. The blades are assembled to combining portions peripherally provided on the main body. The maglev unit includes first and second magnetic portions provided on the stator and the blades respectively and causing magnetic induction therebetween to generate repulsion. Thereby when the vehicle is moving, wind is guided to the blades so as to make the rotor rotate with respect to the stator, and cause the induction winding and the magnets to generate electric power due to electromagnetic effects.

Abstract: A wind turbine generator includes an outer housing, a drive shaft rotatably mounted within the outer housing, stator and rotor assemblies positioned within the outer housing and movable relative to each other, a heat exchanger, and a blower having a rotating plate for generating a fluid flow circuit within the generator for transporting heat from the stator and rotor assemblies to the heat exchanger. An eddy current brake having a rotating member is located within the outer housing and is positioned in the fluid flow circuit such that fluid moving in the flow circuit cools the first rotating member. The blower and the eddy current brake may be integrated, such as by having the rotating plate of the blower serve as the rotating member of the eddy current brake. A wind turbine having such a generator, as well as a method of operating a wind turbine generator is also disclosed.

Abstract: A power generation device includes a first pivot arm having a shank extendable in a predetermined direction, and a rack arranged along the predetermined direction, wherein the shank has a slot between the rack and an end portion of the shank; a second pivot arm having a first end portion coupled with the end portion of the shank at a first pivot; and a third pivot arm having a first end portion coupled with a second end portion of the second pivot arm at a second pivot, and a second end portion of the third pivot arm coupled with the slot of the shank at a third pivot.

Abstract: A multiple oscillation-type generator includes: a first reciprocating member arranged inside a fluid and configured to reciprocate by lifting force, lowering force, or flow energy resulting from the fluid; a second reciprocating member arranged inside the fluid at a distance from the first reciprocating member and configured to reciprocate by lifting force, lowering force, or flow energy resulting from the fluid; a first conversion unit connected to the first reciprocating member and configured to convert reciprocating movements into rotational movements; a second conversion unit connected to the second reciprocating member and configured to convert reciprocating movements into rotational movements; a main power shaft configured to make rotational movements by rotational movements of the first conversion unit and the second conversion unit; and a generation unit configured to produce electric power using transferred rotational movements of the main power shaft.

Abstract: An engine may have a recuperator that may be powered by an electrical generator driven by the engine. The recuperator may be disposed within or incorporated into a compressor discharge of the engine, such as in the form of a vane or tube. The engine may be configured to operate in a variety of modes at least some of which may use thermal energy from the recuperator to heat a fluid flow stream of the engine. An energy storage device may be used with an electrical generator to provide power to a load.

Abstract: The present disclosure is directed to a system and method for improving reactive current response time in a renewable energy power system connected to a power grid. The method includes providing, via a controller of the power system, a permissive logic relating to the power grid. Another step includes determining, via a controller of the renewable energy power system, a reactive current reference command for the renewable energy power system in response to the permissive logic being satisfied. The method also includes generating, via the controller, a reactive current pulse command for the renewable energy power system. Thus, the controller is configured to determine a total reactive current command by combining the reactive current reference command and the reactive current pulse command. Further, the method includes operating the renewable energy power system based on the total reactive current command so as to improve the current response time.

Abstract: The present invention relates to a device for performing an Organic Rankine Cycle-process (ORC-process), comprising a first circular flow in which a first process fluid is conducted, having an evaporator for evaporating the first process fluid, an expansion machine located downstream of the evaporator for expanding the evaporated first process fluid, wherein the expansion machine is connectable to a generator for generating electrical energy, a first condenser located downstream of the expansion machine for condensing the expanded first process fluid, and a first fluid energy machine located downstream of the first condenser for increasing the pressure of the condensed first process fluid and for transporting the first process fluid to the evaporator that is located downstream of the first fluid energy machine. The term fluid energy machine is to be understood to describe a machine that exchanges mechanical work with the process fluid.

Abstract: An energy unit capable of being configured in a transportation configuration and in an operational configuration. The unit comprises a container having first and second ends opposing a longitudinally-extending central section. In the transportation configuration, the container's central section is positioned generally parallel with a supporting ground surface. In the operational configuration the container is configured to be positioned with the first end on the supporting ground surface such that the second end is set apart in an upward direction from the supporting ground surface. The energy unit additionally comprises a wind turbine for generating electrical energy. In the operational configuration, the wind turbine is configured to be received within the interior space of the container, while in the transportation configuration the wind turbine is configured to extend from the exterior surface of the container.

Abstract: A terminal box for a generator set is disclosed. The terminal box may include a generally open structural member configured to be mounted to a generator barrel of the generator set. The structural member may have a first end and a second end that is wider than the first end. When the structural member is mounted to the generator barrel in a first orientation, the second end may be located at a first position relative to the generator set. When the structural member is mounted to the generator barrel in a second orientation, the second end may be located at a second position relative to the generator set.

Abstract: A wind farm includes a plurality of wind power generation units each including a rotation axis, a hub, at least two airfoil blades, a pitch control system and a yaw control system. At least two first-direction wind power generation units are spaced apart longitudinally from each other along a prevailing energy wind direction at a predetermined interval and whose blades are rotated in a same direction. At least one second-direction wind power generation unit that is located between the first-direction wind power generation units and has blades rotating in an opposite direction to a rotational direction of the blades of the first-direction wind power generation units.

Abstract: An apparatus and method for generating electrical power from a user comprises a motion capture apparatus that captures at least a portion of motion of a pair of limbs of the user; a motion integrator mechanically coupled to the motion capture apparatus such that captured motion of the pair of limbs is transferred to the motion integrator, and the motion integrator produces an output motion; an adaptive controller, and an electrical generator mechanically coupled to the output motion of the motion integrator; wherein the electrical generator generates electrical power from the output motion of the motion integrator. The apparatus may be adapted to be carried on the user's back. In one embodiment the apparatus is incorporated into a backpack.

Abstract: An alternator-starter assembly for an internal combustion engine having a crankshaft and a drive member operatively connected to the crankshaft. The alternator-starter assembly includes an electric machine, a transmission assembly, and a controller. The electric machine includes a stator and a rotor that is configured for rotation relative to the stator. The transmission assembly includes a first drive shaft operatively connected to the rotor, a second drive shaft operatively connected to the drive member, and a gear assembly operatively connected to the first drive shaft and the second drive shaft. The controller is connected to the electric machine and is configured to operate the electric machine as a generator when the gear assembly is in a first gear configuration and to operate the electric machine as a motor when the gear assembly is in a second gear configuration.

Abstract: An energy conversion system may include a stationary structure, a rotatable structure configured to rotate relative to the stationary structure, wherein the rotatable structure defines an axis of rotation. The system may further include at least one blade member mounted to and extending radially outward from the rotatable structure, the at least one blade member being configured to interact with fluid currents flowing in a direction substantially parallel to the axis of rotation to cause the rotatable structure to rotate about the axis of rotation, and at least one bearing mechanism disposed to provide at least one of a radial and axial bearing between the rotatable structure and the stationary structure as the rotatable structure rotates about the stationary structure. The system may be configured to convert rotation of the rotatable structure to at least one of electricity and hydrogen production.

Abstract: The invention concerns a method of reconditioning a slip ring transmitter of the gold wire type which has a slip ring, in particular a gold ring, for use with a gold wire board as the circuit board, including the steps: removing a gold wire board from the slip ring transmitter, and fitting a multi-brush board as a replacement for the gold wire board.

Abstract: The dynamo of the present invention is provided in the flow field of a fluid, and has: a columnar oscillating body, one end of the oscillating body being supported in the flow field of the fluid by a shaft that is parallel to the flow direction of the fluid, and the oscillating body being moved reciprocally by self-excited oscillation about the shaft; and an electricity generation unit for generating electrical energy in response to the reciprocal oscillation of the oscillating body.

Abstract: A system for operating a power generation system within a battery storage/discharge mode includes a power convertor having a DC link, a switching module coupled to the DC link, a storage device, and a filter coupled between the storage device and power converter. The filter may correspond to a normal mode filter configured to limit normal mode voltage from being applied to the storage device. A common mode filter may be associated with the storage device. The storage device may correspond to one or more batteries while the power generation system may correspond to a wind-driven generator.

Abstract: Disclosed are systems and rotor/stator assemblies with improved electrical isolation. An example rotor/stator assembly may include a rotor, a rotor housing, a rotor insulator, a stator, a stator plate, and a stator insulator. The rotor may be electrically isolated from the rotor housing by the rotor insulator, and the stator may be electrically isolated from the stator plate by the stator insulator. The stator may be disposed coaxial to the rotor. The rotor/stator assembly may function as a motor, and the stator may be configured to cause the rotor to rotate about the stator in response to an input of electrical energy to the stator. Alternatively or additionally, the rotor/stator may function as an electrical generator. The rotor may be configured to rotate about the stator, and the stator may be configured to produce electrical energy in response to rotation of the rotor relative to the stator.

Abstract: An energy supply module is configured to provide at least one of electricity and hot water to at least one load coupled thereto. The energy supply module includes a plurality of frame members that define an upper level and a lower level. The energy supply module also includes an engine positioned on the upper level and a generator coupled to the engine and also positioned on the upper level. The generator is configured to generate a supply of electricity for distribution to the at least one load. The energy supply module further includes a hot water heater positioned on the upper level, wherein the hot water heater is configured to provide a supply of hot water to the at least one load.

Abstract: In an electropneumatic field device for controlling a pneumatic actuator, an energy converter converts pneumatic energy of a pneumatic power supply of the actuator into electrical energy. An oscillating permanent magnet receives a compressed air pulse to perform a forward motion. A return device transmits a return force to the oscillating permanent magnet for performing a return motion opposite to the forward motion. An electrical voltage is induced into a coil of the energy converter by the forward and return motions of the oscillating permanent magnet. The return device is designed to generate a magnetic field that is polarized with respect to the oscillating permanent magnet such that a magnetic repulsion return force induces the return motion.