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7615892 |
Modular and scalable power conversion system for aircraft
A method and apparatuses are used for power conversion. The apparatus according to one embodiment comprises a plurality of power conversion modules ( 130 — 1, . . . , 130 — n ), the plurality...
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7615881 |
Power turbine speed control using electrical load following
A power turbine speed control system for a turbo-shaft type gas turbine engine that has a gas generator compressor spool and a power turbine spool and drives an electrical generator that powers at...
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7615877 |
Power generation system for mobile power supply
The present invention is a mobile-energy generating system capable of providing redundant direct current power. It comprises a reciprocating engine and generator having dual fuel capability, a fuel...
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7608938 |
Methods and apparatus for electric power grid frequency stabilization
Methods and apparatus for operating a combined-cycle power system are provided. The method includes operating the steam turbine, the combustion turbine, and the steam source at steady state...
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7605490 |
Transportable hydro-electric system
The invention is a transportable hydroelectric power generating system which is capable of being fully or partially assembled in a factory setting and then transported to a water stream. The system...
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7605483 |
Integrated electrical power extraction for aircraft engines
An aircraft power system includes an aircraft engine having a plurality of engine spools, a plurality of AC generators driven by at least one spool, wherein each AC generator is independently...
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7583063 |
Architecture for electric machine
The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first...
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7579703 |
Hydroelectric in-pipe generator
The present device provides an in-pipe turbine generator having a conduit, a plurality of runner blades positioned within the conduit, and a pitch adjustment mechanism whereby the pitch of the...
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7578658 |
Control for integrating compressor-turbine-motor train with power grid
A method of controlling a compressor turbine motor train including: receiving a control signal from a plant process controller; receiving a feedback signal indicative of a state of the electrical...
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7569942 |
Output voltage controller of engine-driven generator
A control section 32 supplies a current obtained by rectifying the output of an exciting winding 5 to a field winding 3 responding to variations in the output voltage of the generator to...
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7554223 |
Magnetohydrodynamic energy conversion device using a heat exchanger
An energy conversion device for generating electricity includes a heat exchanger adapted to receive heat from a heat source. A closed magnetohydrodynamic (MHD) circuit includes a section for...
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7541687 |
Method and system for managing an electrical output of a turbogenerator
The system and method manages an electrical output of a turbogenerator in accordance with multiple modes. In a first mode, a direct current (DC) bus receives power from a turbogenerator output via...
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7536863 |
Combined cycle
A combined cycle wherein part of the gas turbine exhaust gas stream is recycled to the gas turbine and the remainder of the gas turbine exhaust gas stream is expelled from the cycle. The power...
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7530229 |
Control device for supercharger with electric motor
An object of the present invention is to provide a control apparatus for an electrically assisted supercharger capable of effectively compensating for an output drop even with decrease in the...
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7526926 |
Method for efficient nonsynchronous LNG production
A drive system for a refrigeration compressor such as is used in a natural gas liquefaction plant, allowing the desired compressor speed and maximum turbine efficiency to be maintained throughout...
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7521901 |
Electrical power stabilisation
Use of a common electrical power bus to which a number of electrical power generators and consumers are coupled is well known. Typically, a high electrical capacitance is provided across the bus in...
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7521815 |
Micro power generating device
There is provided a micro power generating device. A compressor impeller and a turbine wheel are coupled to the ends of a rotating shaft. A cooler is provided for lowering a temperature of the...
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7518254 |
Multiple prime power source locomotive control
The present invention is directed to a control strategy for operating a plurality of prime power sources during propulsion, idling and braking and is applicable to large systems such as trucks,...
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7514838 |
Fan unit using motor equipped with rotor united with fins
A fan unit comprises an electric rotary machine (e.g. electric motor) having a rotor and a fin structure unified with the rotor. The fan unit further comprises a rotation mechanism for rotating the...
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7514810 |
Electric power generation using power turbine aft of LPT
An inside out generator disposed aft of the low-pressure turbine spool to generate power for the electrical demands of an aircraft system. The low-pressure turbine discharge flow is used to drive...
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7504738 |
Wind turbine and method for operating same
A wind turbine includes an asynchronous generator having a rotor and a stator, means for determining an actual torque-speed curve of the generator, means for determining an actual grid frequency,...
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7495354 |
Gas turbine, particularly an aircraft engine
A gas turbine, particularly an aircraft engine includes at least one compressor. The gas turbine comprises at least one stator, at least one rotor and at least one generator ( 19 ) for generating...
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7485981 |
Aircraft combination engines complemental connection and operation
A power generation system for propelling, and generating electrical power in, an aircraft, using a gas turbine engine coupled to a turbine starter/generator unit having therein an electrical...
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7478533 |
Engine system with a supercharger
An engine system includes a compressor system which is at least partially driven by an electric motor, and a turbine system. The system includes a detector for detecting an actual supercharging...
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7471008 |
Method and system for controlling a rotational speed of a rotor of a turbogenerator
A system and method controls a rotational speed of a rotor or shaft of a turbogenerator in accordance with a present voltage level on a direct current bus. A lower threshold and a higher threshold...
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7468564 |
Air turbine generator
An electrical power supply system comprises an air-powered alternating current electrical generator in which pressurized air from a single source is used to drive an air turbine secured on the...
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7462948 |
Midget gas turbine
The present invention provides a midget gas turbine has:
a casing; an irregular-shaped hollow disk rotationally attached to a casing; said irregular-shaped hollow disk having in a hollow...
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7462945 |
Self-powered miniature liquid treatment system
A liquid treatment system that may be self-powered includes a filter and a hydro-generator. A flow of liquid may be filtered with the filter and used to rotate the hydro-generator to generate...
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7458214 |
Electric motor cartridge for an electrically assisted turbocharger
An electric motor cartridge comprises a first cartridge housing portion ( 2 ) and a second cartridge housing portion ( 3 ). The cartridge housing portions ( 2, 3 ) are coupled together so as to...
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7455101 |
Device of micro loop thermosyphon for ferrofluid power generator
The present invention provides a micro loop thermosyphon cooler, having a thermal absorption unit and a condenser sequentially arranged therein, wherein the condenser is arranged at a position...
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7452181 |
Plant facility
A plant facility in which lubricant supply equipment for supplying a lubricant to rotor bearings and a speed reducer can be dispensed with. The plant facility comprises a gas turbine rotor of a gas...
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7449795 |
Electric power generation system using a permanent magnet dynamoelectric machine for starting a combustion turbine and for generating uninterruptible excitation power
An electric power generation system 10 with a combustion turbine 12 as a prime mover for a main generator 16 is provided. The power generation system includes a dynamoelectric machine 30 ...
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7436079 |
Power system for a telecommunications site
A reliable power supply solution for a telecommunications site provides a combined primary and backup source of electrical power. One system of the power supply solution includes one or more...
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7432609 |
Exhaust gas-driven generator system and method of controlling electrical system
An amount of electric power generatable by an exhaust gas-driven rotating electric machine is determined corresponding to an operating point, so that an increment amount of fuel by the exhaust...
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7426829 |
Vane control
An exemplary controller includes a control valve that includes an electric actuator operatively coupled to a valve stem, a piston operatively coupled to one or more hydraulic fluid paths controlled...
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7425772 |
Electric power generating system using ring-shaped generators
Electric power generator system using ring-shaped generators and essentially being formed of turbines and generators, and optionally converging-diverging nozzles. The turbines may optionally have...
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7420288 |
Stall controller and triggering condition control features for a wind turbine
Control features for a wind turbine that control the turbine over a range of wind speeds and under triggering conditions with reduced noise, cost, and reliability issues associated with other such...
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7405491 |
Electric power generating device
There is provided an electric power generating device which includes a generator which is constituted by an interior permanent magnet (IPM) synchronous generator, and is connected to a steam...
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7405488 |
Power generator
There is provided a power generator including a plurality of power generation elements, and a fuel supply portion that communicates with the plurality of power generation elements through a fuel...
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7391127 |
Renewable energy wave pump
A renewable energy electric power generating system consisting of Renewable Energy Wave Pumps, located under water, anchored to the sea bed, auto regulating to variable sea elevations and...
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7391125 |
Electrical power generation system and method for mitigating corona discharge
A power generation system including a housing defining a cavity and having an inlet for receiving a fluid that is used to cool and pressurize the cavity and an outlet for removing the fluid from...
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7385309 |
Innovative architectures for systems for generation and distribution of energy on board motor vehicles
The system allows the generation and distribution of energy on board a motor vehicle provided with a propulsion unit, a tank for fuel at least one distribution network or line for electric energy,...
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7382061 |
Supercharger coupled to a motor/generator unit
A device for handling and recovering of kinetic energy in a fluid is presented which basically features a bladed impeller ( 11 ). The impeller is operated by an electric engine ( 12 ) and acts as a...
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7372175 |
Two-spool bypass turbojet with a rear electricity generator, and an air flow connection device and system
A two-spool bypass turbojet includes a low-pressure spool having a rear portion carrying a low-pressure turbine provided with a low-pressure rotor. The turbojet includes a support structure...
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7368827 |
Electrical assembly for monitoring conditions in a combustion turbine operating environment
An electrical assembly for use in various operating environments such as a casing of a combustion turbine 10 is provided. The assembly may include an electrical energy-harvesting device 51 ...
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7367190 |
Supercharger with electric motor
In a supercharger ( 10 ) with an electric motor in accordance with the present invention, the electric motor ( 20 ) is arranged at a position adjacent to a compressor impeller ( 6 ), a center...
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7358622 |
Distributed power generation system using a fuel cell and a method of controlling the same
Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell...
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7355297 |
Methods and apparatus for electric power grid frequency stabilization
A method and apparatus for operating a combined-cycle power system is provided. The system is coupled to an electric power grid. The system includes at least one electric power generator, at least...
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7352077 |
Motor-driven supercharger
There are provided with a motor rotor ( 22 ) fixed to a turbine shaft ( 12 ) and rotating together with the turbine shaft, a motor stator ( 24 ) surrounding the motor rotor and fixed within a...
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7336000 |
Electrical power regulation for a turbogenerator and generator associated with an internal combustion engine
A speed monitor for establishing a lower threshold and an upper threshold for a speed of a rotor or shaft of a turbogenerator. A speed detector detects speed data or a speed signal for a rotor or...
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