Class / Patent application number | Description | Number of patent applications / Date published |
322004000 | WITH FLYWHEELS OR MASSIVE MOVING PARTS | 15 |
20080297120 | ELECTRONICALLY REDUNDANT SPACECRAFT POWER AND ATTITUDE CONTROL SYSTEM - An energy storage flywheel system for a spacecraft is implemented with an electronically redundant power and attitude control system. In particular, the system includes a plurality of flywheels, and a multi-channel processing module and a multi-channel power control module associated with each flywheel. Each multi-channel processing module includes a plurality of controllers that may be operated in either an active or a standby mode, and each multi-channel power control module includes a plurality of power control circuits that may also be operated in either an active or standby mode. | 12-04-2008 |
20080309296 | Regenerative static excitation system for superconducting rotor - The present invention provides for a static excitation system for a superconducting rotor that comprises multiple brushes ( | 12-18-2008 |
20090256532 | Kinetic Energy Harvesting in a Drill String - An apparatus and method for harvesting energy in a wellbore is disclosed. In one embodiment, a harvester tool positioned in a wellbore for capturing energy in the wellbore is disclosed. The harvester tool includes a rotor comprising a magnet. The magnet is disposed eccentric to a center of the harvester tool. In addition, the rotor is rotatable around the center of the harvester tool. The harvester tool also includes a stator. Rotation of the rotor induces a voltage in the stator. | 10-15-2009 |
20090302808 | Flywheel electricity generator - A flywheel (magnet rotors or stators) assembly to create electricity, by attaching motor to provide kinetic energy to magnet rotors or stators, so magnet rotors or stators can run on principal of flywheel to create electricity by magnet rotors rotating like flywheel on two sides of stator, and stator rotating like flywheel in-between magnet rotors. | 12-10-2009 |
20100001697 | MECHANICAL FLOW BATTERY - A mechanical flow battery comprises a flywheel system in which a spinning axis can be driven by an air-powered motor and the structure of the gyroscope is employed in the mechanical flow battery. The structure of the gyroscope can be constructed by coupling the housing of the flywheel system with a nutation frame which couples a precession frame so that the spinning axis in the flywheel can be isolated from any outside gyroscopic torque. | 01-07-2010 |
20100156360 | Eddy current torsional damper for generator - A generator rotor torsional damper system includes a prime mover for generating rotational force, a generator stator, a generator rotor rotatably supported relative to the generator stator and configured to receive a rotational force input from the prime mover, a flywheel rotationally supported relative to the generator rotor by bearings, and an eddy current coupling operably connected between the flywheel and the generator rotor such that rotation of the generator rotor induces rotation of the flywheel in a common rotational direction through engagement by the eddy current coupling. | 06-24-2010 |
20100244786 | ENERGY STORAGE - The energy storage has an electrical machine with a rotor and a stator. The stator is separated from the rotor by an air gap and has at least one stator coil which, under operating conditions, interacts with the rotor via a rotating field. In one variant, the rotor surrounds the stator and is adapted to rotate about the stator. Another variant provides for the rotor to surround the stator and to be adapted to rotate within the stator. The rotor is associated with a rotating mass with which it forms a cylindrical body with two end faces and a lateral surface. In the area of at least one of its end to faces—in the installed position of the energy storage, of the bottom end face—the cylindrical body has at least one permanent magnet which corresponds with at least one stationary permanent magnet of identical polarity. | 09-30-2010 |
20120187922 | ENERGY STORAGE SYSTEM AND METHOD - An system for storing electrical energy over at least a medium term duration. The energy storage system comprises a motor assembly operatively connectable to at least one of an electrical energy source and an electrical distribution network for providing kinetic energy, a flywheel device operatively connectable to the motor assembly for storing at least one part of the kinetic energy, a generator assembly operatively connectable to the flywheel device for receiving at least one portion of the part of the kinetic energy and generating regenerated electrical energy in response thereto, and a control unit for controlling operation of the energy storage system, which enables an energy storage operating mode for storing the part of the kinetic energy into the flywheel device, and an energy supply operating mode for providing at least one portion of the regenerated energy to at least one of the electrical distribution network and an electrical appliance. | 07-26-2012 |
20130015825 | FLYWHEEL APPARATUSAANM Pullen; KeithAACI LondonAACO GBAAGP Pullen; Keith London GB - The present invention provides a flywheel apparatus for use as an energy storage system, the apparatus comprising: a housing unit having a base; a flywheel assembly mounted within the housing unit, the assembly comprising a flywheel supported by a rotatable axle arranged to enable rotation of the assembly within the housing, the axle defining an axis of rotation; stabilising means located within the housing unit arranged to stabilise rotation of the flywheel assembly about the rotation axis; and levitation means arranged to levitate the flywheel assembly above the base of the housing unit, in order to create a clearance between the flywheel assembly and the base of the housing unit. | 01-17-2013 |
20140062423 | Rotating Kinetic and Potential Energy Frequency Regulation Device For Fast Response Large Scale Electric Power Applications - A rotating device for multi-megawatt, fast response frequency regulation for the electric grid. The device generally has a main shaft coupled to a motor-generator, a main spring concentric to the main shaft, and several radially-symmetric arms, each connected to the main spring via a four-bar mechanism. As the rotational speed of the device increases, centrifugal force acting on the arms causes them to rise, the four-bar mechanism compresses the main spring, and energy is stored in the device as a combination of kinetic rotational energy, elastic potential energy, and gravitational potential energy. The device can be configured with additional springs, which can be compression springs, tension springs, or a combination thereof, in order to increase the amount of energy produced. Symmetrically-spaced gliding masses can be arranged on the arms as well. | 03-06-2014 |
20140210424 | HIGH SPEED FLYWHEEL ON MAGNETIC BEARINGS - A high speed energy storage flywheel comprises a rotor which is located in a vacuum chamber provided in a stator housing and is supported by magnetic bearings with respect to the stator housing. A fluid tank used for releasing in a controlled manner, a fluid inside the vacuum chamber and therefore create a braking effect on the rotor by friction. | 07-31-2014 |
20150364967 | Flywheel Apparatus and Use Thereof - There is provided a flywheel apparatus comprising a plurality of flywheels configured to be mounted on a rotating shaft having a longitudinal axis, each one of the flywheels having a mass concentration in a predefined zone within its surface such that the net torque required for maintaining the rotation of the flywheels when combined with a constant angular velocity about the longitudinal axis of the rotating shaft is null. There is also provided use of a flywheel apparatus with an electrical energy generation system. | 12-17-2015 |
20150380939 | METHODS, SYSTEMS AND APPARATUS FOR REGULATING FREQUENCY OF GENERATED POWER USING FLYWHEEL ENERGY STORAGE SYSTEMS WITH VARYING LOAD AND/OR POWER GENERATION - Featured are methods for regulating the AC frequency of the electrical power be supplied on an electrical distribution system or grid. Such a method includes electrically coupling an energy storage sub-system to the electrical distribution network, where the energy storage sub-system includes one or more flywheel energy storage systems. Also featured as devices, systems and apparatuses embodying such methodologies or for use in implementing such methodologies of the present invention. | 12-31-2015 |
20160094172 | SYSTEM FOR COMPENSATING ROTOR VIBRATIONS - The present disclosure relates to a system to compensate for mechanical forces on a rotating rotor of an electric machine, to a method for compensating mechanical forces on a rotating rotor of an electric machine, and to a use of a corresponding system. Disclosed is a system for compensating torsions at a rotating rotor. The system includes at least one measuring device for measuring specific properties of the rotor, an analyser unit for analysing the measurement data of the measuring device, a compensation means for compensating the torsions at the rotor, the compensation means comprise a power supply unit generating a signal adapted in amplitude and frequency to the measured properties of the rotor, and to apply the generated signal to the rotor, and the power supply unit is a frequency converter. | 03-31-2016 |
20160105136 | METHOD AND A GENERATOR SYSTEM FOR OPERATING A GENERATOR - The present disclosure relates to a method and a generator system for operating a generator. The method for operating the generator includes exciting the field winding of a rotor of the generator by a first exciter device, driving a second exciter device while operating the generator with the first exciter device, and switching the second exciter device to excite the generator in case the first exciter device feeds to the generator not sufficient energy for operating the generator during a malfunction of the first exciter device. Further, a corresponding generator system is described. | 04-14-2016 |