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US20120299558 SUBMERGED RAM AIR TURBINE GENERATING SYSTEM  
A submerged ram air turbine generating system adapted for use in a pod mounted to the wing of an aircraft comprises a submerged inlet extending substantially entirely around the outer surface of...
US20110241630 POWER CONVERSION SYSTEM FOR A MULTI-STAGE GENERATOR  
An electric power generation system is provided, including a generator having a plurality of stages engaged by a prime mover; and a plurality of branches for connecting the stages to an electrical...
US20120133342 WIND TURBINE GENERATOR AND SURPLUS ENERGY CONTROL METHOD FOR WIND TURBINE GENERATOR  
A wind turbine generator includes a synchronous generator that generates electric power via rotation of a rotor provided with blades that receive wind and that supplies the generated electric power...
US20120056601 ROTOR BASED AIR GAP HEATING FOR AIR DRIVEN TURBINE  
A generator apparatus comprises a deicing circuit. The deicing circuit is operable during a time when a main generator rotor is not being rotated by a generator shaft. The deicing circuit includes...
US20120133150 COMBINATION LOW SPOOL GENERATOR AND RAM AIR TURBINE GENERATOR  
A power generating apparatus for use with an aircraft gas turbine engine has a low pressure spool assembly which includes an electrical generator. The electrical generator includes a generator...
US20120007361 Water Handling Environment Water Electric Generator  
A variable volume and velocity water electric generator system for use in a narrow channel in which variable amounts of water flow. The system includes an electric generator/water wheel unit...
US20120049805 FAULT RIDE THROUGH SWITCH FOR POWER GENERATION SYSTEM  
A power generation system that includes a prime mover configured to generate mechanical energy. The power generation system also includes a power generator configured for generating electrical...
US20130334818 Dynamic Braking on a Wind Turbine During a Fault  
A braking system for a wind turbine is disclosed. The braking system may include a DC chopper connected to a DC bus and a super capacitor capable of being connected to the DC chopper through a...
US20110273147 Electric Tap in a Voltage Regulator Circuit  
In one aspect of the present invention, a voltage regulator circuit comprises at least one coil disposed around a rotor coupled to a first rectifier. The coil comprises an electric tap connected to...
US20120001597 ELECTRIC POWER CONVERTING APPARATUS  
A microcomputer that exercises driving control and power-generation control over a motor generator unit and a power-generation maintaining unit that, separately from the power-generation control...
US20120242295 Method and arrangement for controlling an operation of an electric energy production facility during a disconnection to a utility grid  
A method is provided for operating an electric energy production facility during a fault in a utility grid to which energy is to be delivered. The energy production facility includes at least one...
US20120049521 WIND TURBINE GENERATOR SYSTEM  
To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are...
US20110215578 WIND TURBINE GENERATOR SYSTEM  
To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are...
US20110210705 METHOD FOR REGULATING THE REACTIVE POWER GENERATED OR ABSORBED BY A SYNCHRONOUS ELECTRIC GENERATOR AND SYNCHRONOUS ELECTRIC GENERATOR  
A method for regulating the reactive power generated or absorbed by a synchronous electric generator includes regulating a quantity of coils disposed in line with a stator winding. Additionally, a...
US20120248772 CONTROL DEVICE OF WIND TURBINE GENERATOR, WIND TURBINE GENERATOR, WIND FARM, AND CONTROL METHOD FOR WIND TURBINE GENERATOR  
An object is to rapidly recover from a voltage drop in a power grid. When the value of a grid voltage detected by a grid voltage detection unit has fluctuated so as to satisfy a condition set in...
US20120074930 MOVING MAGNETIC FIELD GENERATING APPARATUS  
A moving magnetic field generating apparatus includes a magnet array including magnets disposed at a first pitch such that N and S poles of adjacent magnets in the magnet array are alternated, and...
US20140002032 STANDBY POWER SYSTEM THAT PREDICTS A NEED TO SUPPLY POWER TO A LOAD TO MINIMIZE START TIME OF A GENERATOR  
Some embodiments relate to a standby power system. The standby power system includes a sensor that is adapted to monitor a primary power source which provides power to a load. In some embodiments,...
US20130293034 ELECTRO-HYDRODYNAMIC WIND ENERGY SYSTEM  
A system for electro-hydrodynamically extracting energy from wind includes an upstream collector that is biased at an electric potential and induces an electric field. An injector introduces a...
US20130221934 WIND-TURBINE-GENERATOR CONTROL SYSTEM, WIND TURBINE GENERATOR, WIND FARM, AND WIND-TURBINE-GENERATOR CONTROL METHOD  
In a wind turbine generator, the rotation of the rotor is speeded up by a hydraulic pump and a hydraulic motor and is transferred to a synchronous generator. In a state in which the wind turbine...
US20130169241 CONTROL METHOD OF A WIND TURBINE GENERATOR  
The control method of a wind turbine generator increases the speed range of wind turbine generators, maximising the operation and efficiency thereof, in addition to lengthening their service life,...
US20110115445 POWER SYSTEM  
A power system is provided for delivering a custom level of electrical power to an industrial or commercial facility, comprising a local generator connected to a turbine operating in accordance...
US20130049708 OUTPUT CONTROL DEVICE OF ELECTRIC GENERATOR  
A rising temperature of components of an electric generator is restrained without deteriorating the quality of electricity output and the user-friendliness of the electric generator. AVR (7) and a...
US20130193934 WIND TURBINE GENERATOR, CONTROL METHOD FOR WIND TURBINE GENERATOR, WIND TURBINE GENERATOR SYSTEM, AND CONTROL METHOD FOR WIND TURBINE GENERATOR SYSTEM  
It is an object to stabilize a utility grid even when an unexpected fluctuation in the frequency of the utility grid occurs. A wind turbine generator includes a rotor that rotates by wind power, a...
US20120326678 Method for Protecting an Automotive Generator From Overheating  
A method for protecting an automotive generator from overheating, in which a predefined limiting characteristic curve, related to a base temperature and describing a maximally allowed excitation...
US20110050182 GENERATOR DEVICE WITH OVERVOLTAGE MONITORING  
A generator device with a generator regulator and a generator unit having a generator and a rectifier arrangement. The generator regulator has an operating voltage connection and a phase voltage...
US20110101927 POWER GENERATION SYSTEM AND METHOD WITH VOLTAGE FAULT RIDE-THROUGH CAPABILITY  
A power generation system includes a generator mechanically coupled to a turbine to generate electrical power. The system includes a fault ride through system having a variable resistor and a...
US20110248686 METHOD FOR THE OPERATION OF A WIND ENERGY PLANT AT SUDDEN VOLTAGE CHANGES IN THE GRID  
A method for the operation of a wind energy plant with a rotor, which transfers a driving moment to a generator via a drive train, wherein the generator provides a pre-settable generator moment...
US20120223531 Generator Selection in a Power Plant  
A power plant includes an engine coupled to a first generator and a second generator. The first generator includes a synchronous generator wherein the first generator is configured to provide...
US20110227545 VIBRATION POWER GENERATOR, VIBRATION POWER GENERATING DEVICE AND COMMUNICATION DEVICE HAVING VIBRATION POWER GENERATING DEVICE MOUNTED THEREON  
Electricity generated by a vibration power generator 200 can be extracted efficiently by providing the vibration power generator 200, a rectifier circuit bridge 205, an output controlling circuit...
US20110115444 ELECTRIC LOAD DAMPER FOR DAMPING TORSIONAL OSCILLATION  
An electric load damper assembly includes a synchronous generator operable to provide a plurality of phases of electrical output in response to a mechanical input from a rotating shaft. An electric...
US20120133343 WIND TURBINE HAVING A HIGH-VOLTAGE RIDE THROUGH (HVRT) MODE  
A wind turbine connected to a power grid is provided. The wind turbine is selectively activated to operate at a high-voltage ride through (HVRT) mode. The wind turbine includes a grid voltage...
US20130234679 AIRCRAFT POWER SUPPLY CIRCUIT INCLUDING AN ASYNCHRONOUS MACHINE  
A power supply circuit for supplying electrical energy in an aircraft, the circuit including a power supply generator configured to be driven in rotation by the engine of the aircraft to power...
US20130027003 DOUBLY-FED INDUCTION GENERATOR SYSTEM AND THE SELF-TEST METHOD FOR THE ACTIVE CROWBAR CIRCUIT THEREOF  
Provided is a doubly-fed induction generator system and a self-test method for the active crowbar circuit of the doubly-fed induction generator system. The invention is featured by using the...
US20110057630 Vehicular Alternator, and Rectifier of Vehicular Alternator  
A rectifier of vehicular alternator that rectifies AC electrical power into DC electrical power comprises: a rectifier that includes a plurality of MOS FETs that are used as rectifier elements; a...
US20120299559 Energy Collection  
An energy collection system may collect and use the energy generated by an electric field. Collection fibers are suspended from a support wire system supported by poles. The support wire system is...
US20140111167 VOLTAGE REGULATOR AND METHODS FOR SIMULATING REACTIVE POWER IN PARALLEL POWER GENERATION SYSTEMS  
Systems, methods, and a voltage regulator are provided for tuning reactive droop compensation of a generator in a parallel power generation system. The voltage regulator is configured to compute a...
US20110018270 DOUBLY-CONTROLLED ASYNCHRONOUS GENERATOR  
An electric power generator system or a motor comprising a doubly-fed asynchronous generator or motor comprising a stator and a rotor; a transformer having a first winding and a second winding, the...
US20080001579 Gravity propelled generator  
The Gravity Propelled Generator is a machine used as a method of renewable energy. It uses a pendulum attached to a solid lever that is connected to an axle. The axle is connected on both sides to...
US20120074912 INVERTER GENERATOR  
A control circuit (microcomputer) is provided in each of two inverter portions. Magnitude of a target waveform signal corresponding to a voltage to be output by each of the inverter portions is...
US20110193534 MAGNETIC CONTROL CIRCUIT SEPARATION SLIT  
An electric alternator/motor having a stator with at least two non-overlapping sectors is provided. Each sector includes a first winding, first and second magnetic circuits and a saturation control...
US20130009612 ENERGY EXTRACTION DEVICE WITH ELECTRICAL GENERATOR AND METHOD OF OPERATING ENERGY EXTRACTION DEVICE ELECTRICAL GENERATOR  
A wind turbine generator, or other energy extraction device, has a hydraulic circuit comprising a hydraulic pump driven by a rotating shaft and a hydraulic motor driving an electricity generator....
US20110273148 OUTPUT CONTROL DEVICE FOR HYBRID ENGINE-DRIVEN POWER GENERATOR  
A power generator has a battery and an alternator driven by an engine. The battery assists a power energy of the alternator. An inverter circuit is connected to an output of a rectifying circuit. A...
US20120262129 DOUBLE FED INDUCTION GENERATOR CONVERTER AND METHOD FOR SUPPRESSING TRANSIENT IN DEACTIVATION OF CROWBAR CIRCUIT FOR GRID FAULT RIDETHROUGH  
A double fed induction generator (DFIG) system and controller are presented in which the rotor side converter is preloaded with one or more initial values for resuming regulated operation to...
US20110133703 ARCHITECTURE FOR DUAL SOURCE ELECTRIC POWER GENERATING SYSTEM  
A dual source electric power generating system (EPGS) provides both a regulated AC output and a regulated DC output. The EPGS includes a rotating portion and a stationary portion. The stationary...
US20110074366 PERMANENT MAGNET GENERATOR HAVING PASSIVE FLUX CONTROL  
A permanent magnet generator assembly has a permanent magnet generator with magnetic flux control windings, a passive rectifier, and a passive control element. The passive control element...
US20140111012 Methods and Voltage Regulator for Power Distribution in a Hybrid System  
Methods and a voltage regulator are provided for distributing power sourcing in a hybrid power plant system. The voltage regulator is configured to monitor an output power of a generator and...
US20080218131 No emission portable generator  
A generator without emissions that portably temporarily and quietly is capable of producing electrical power for household appliances in the event of a blackout. The generator has a power source...
US20120211983 METHOD AND SYSTEM FOR OPERATING AN ELECTROMECHANICALGENERATOR  
A method for operating an electromechanical generator is provided, the method comprising: determining a magnetic field reference parameter based on an electromagnetic power reference representing a...
US20140055103 SYSTEM AND METHOD FOR MONITORING TEMPERATURE INSIDE ELECTRIC MACHINES  
The electric machine comprises at least one winding made of a material having a temperature dependent resistance. The temperature of the winding is monitored using the resistance therein....
US20090302808 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...