|
Match
|
Document |
Document Title |
|
|
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...
|
|
|
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...
|
|
|
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...
|
|
|
7327047 |
Gas turbine engine generator system
In a gas turbine power generator system, when there is an increase in the demand of a user system, a battery system supplies a supplemental electric power which is given by adding an added electric...
|
|
|
7327048 |
Hybrid gas turbine engine starter-generator
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator...
|
|
|
7304400 |
Power generating system and its control method
A power controller 5 calculates the induced voltage or rotor magnetic flux from the output voltage and the output current of a generator 3 , estimates a shaft speed of the generator 3 from the...
|
|
|
7296409 |
Electric motor assisted turbocharger
A turbocharger comprises a turbine wheel and a compressor wheel mounted to a turbocharger shaft. An electric induction motor is provided for assisting rotation of the compressor wheel in...
|
|
|
7284948 |
Turbine with tube arrangement and method of preventing detachment of a fluid flow
Turbine system including a turbine and a tubular arrangement having an exit opening. The tubular arrangement is arranged on a downstream side of the turbine. At least one flow controlling device at...
|
|
|
7285871 |
Engine power extraction control system
An engine power extraction control system controls the main propulsion engines and the electrical machines that are coupled thereto to supply an appropriate amount of aircraft thrust and electrical...
|
|
|
7271500 |
Electrical rotating machine control unit and power generation system
Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of...
|
|
|
7268522 |
Excitation control for wound field synchronous dynamoelectric machines
A wound field synchronous (WFS) dynamoelectric machine comprises: a rotor assembly; an exciter generator section comprising a stationary multiphase exciter stator winding for receiving excitation...
|
|
|
7256511 |
Turbine-generator equipment and installation method thereof
Installation method of turbine-generator equipment controlling a turbine-generator is described. The method includes manufacturing a thyristor excitation equipment as a package including a circuit...
|
|
|
7256506 |
Backup power hierarchy for a facility system
A system is disclosed which accomplishes a method of providing backup power to a device in a facility. The method includes using turbines to combusting a fuel to generate a primary power source. If...
|
|
|
7245037 |
Wind power fed network
An electric network for generation and transmission of electric power, including a power generating part, a point of common connection for the power generating part, a transmission link, a load...
|
|
|
7245032 |
Mobile-power system utilizing propane generator, fuel cell and super capacitors
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...
|
|
|
7245040 |
System and method for controlling the frequency output of dual-spool turbogenerators under varying load
Methods for maintaining a constant electrical output frequency in a turbogenerator with increased electrical loads are provided. The methods comprise biasing adjustable guide vanes of a compressor...
|
|
|
7224082 |
Turbomachine including an integrated electricity generator
A turbomachine includes a high-pressure spool, an axial compressor of axis X mounted on a rotor and including a casing and at least one rear bearing disposed between the casing and the rotor of the...
|
|
|
7211906 |
Rankine—microturbine for generating electricity
An electrical output power generation system is provided. A gas turbine engine rotor spool with at least one alternator rotor and steam turbine rotor are integrated and within a engine body having...
|
|
|
7190088 |
Process of using hydraulic turbines to generate electricity
The process of attaching turbines to water mains, water towers, sewage lines, aqueducts, and various pipelines so as to capture the kinetic energy of pressurized fluid traveling through these...
|
|
|
7174714 |
Electric turbocompound control system
Turbocompound systems can be used to affect engine operation using the energy in exhaust gas that is driving the available turbocharger. A first electrical device acts as a generator in response to...
|
|
|
7157885 |
Inverter controlled generator set and method for controlling the same
A method for controlling an inverter controlled generator set which comprises a DC power source section having as a power source a generator driven by an engine and an inverter which converts an...
|
|
|
7156899 |
Area wide municipal electronic air cleaner and method
The present invention provides a power generation facility that is adapted to clean large air masses. Air from the environment, which normally contains the most pollutants, is directed into an air...
|
|
|
7155912 |
Method and apparatus for storing and using energy to reduce the end-user cost of energy
The invention relates to an energy storing method and apparatus for use by end-users of energy, such as commercial property owners and operators. The system differs from past systems, insofar as it...
|
|
|
7145262 |
Wind turbine generator system
A wind turbine generator system is equipped with a three phase generator connected to a shaft of a windmill, a converter connected to a stator of the generator, and an inverter connected to the...
|
|
|
7133325 |
Apparatus and method for generating electrical power in a borehole
An apparatus and related method generate electrical power in a tubular housing, such as a drill collar, disposed in a borehole when drilling fluid flows through the tubular housing. The apparatus...
|
|
|
7132758 |
Extracting power from a fluid flow
An apparatus for extracting power from a fluid flow comprises a fluid driveable engine, a conduit, disposed to enable fluid communication between a portion of the fluid flow, the fluid driveable...
|
|
|
7119451 |
Self-powered miniature liquid treatment system with ultraviolet dosing
A liquid treatment system that may be self-powered includes a filter, an ultraviolet light source and a hydro-generator. A flow of liquid may be filtered with the filter and used to rotate the...
|
|
|
7112891 |
Mobile-power system with solar-powered hydrogen liberator, fuel cell, turbine, and capacitors
The present invention is a mobile-energy generating system. It comprises a turbine, a fuel cell, commercial electrical power hookups, capacitors used for bridging purposes, and hydrogen-storage...
|
|
|
7098552 |
Wind energy conversion system
A wind energy conversion system includes upper and lower wind turbines having counter-rotating blade assemblies supported for rotation about a vertical rotation axis, with each blade assembly...
|
|
|
7095132 |
Wind turbine generator system
An object of the present invention is to minimize the torsional vibration caused on the shafting of the wind turbine genarator system so as to operate the windmill stably. A wind turbine genarator...
|
|
|
7095133 |
Electrical rotating machine control unit and power generation system
Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of...
|
|
|
7095126 |
Internal energy generating power source
An external power source such as a battery is used to initially supply power to start an alternator and generator. Once the system has started it is not necessary for the battery to supply power to...
|
|
|
7084600 |
Power control apparatus for a turbo charger equipped with an assist motor and a motor driven turbo charging apparatus
A power control apparatus includes an inverter giving a rectangular waveform drive signal to an induction motor, an inverter voltage controlling section controlling an output voltage of the...
|
|
|
7078825 |
Microturbine engine system having stand-alone and grid-parallel operating modes
A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a...
|
|
|
7078826 |
Hybrid gas turbine engine starter-generator
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator...
|
|
|
7076954 |
Turbocharger system
A system for controlling intake pressure of a combustion engine operably coupled to a power generation system includes a sensor configured to output a signal indicative of a pressure in an intake...
|
|
|
7073335 |
Gas storage power station
The present invention relates to a gas storage power station ( 1 ) having a turbine group ( 3 ) and a compressor group ( 4 ). The turbine group ( 3 ) has at least one turbine ( 5, 6 ) and a...
|
|
|
7067936 |
Self-powered miniature liquid treatment system with multiple liquid flow paths
A liquid treatment system that may be self-powered includes a filter, an ultraviolet light source and a hydro-generator in a first flow path. The first flow path may provide treated liquid at a...
|
|
|
7067935 |
Method for regulating the level of a dam installation and dam installation implementing the method
Method of regulating a water level of a dam installation having a plurality of turbine generator units arranged to generate electrical power, wherein at least some of the plurality of turbine...
|
|
|
7047743 |
Electric turbo compound configuration for an engine/electric generator system
An engine/electric generator system includes an internal combustion engine, a primary electric generator driven by an output shaft of the engine and providing electrical power. A turbocharger has a...
|
|
|
7047744 |
Dynamic heat sink engine
A dynamic heat sink engine including a storage vessel having a working fluid outlet and a working fluid inlet. The lower portion of the storage vessel contains a cryogenic working fluid, such as...
|
|
|
7045913 |
Microturbine engine system
A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a...
|
|
|
7042111 |
System, method and apparatus for a redundant prime mover system
The present invention provides a system, method and apparatus for a redundant prime mover system to drive a machine having an engine coupled to the machine, and a motor/generator coupled to the...
|
|
|
7042112 |
Wave energy conversion system
An omni-directional system configured to convert the kinetic and potential energy in ocean waves to electrical energy or in some special cases to other forms of energy such as heat, mechanical and...
|
|
|
7030593 |
Multiple path variable speed constant frequency device having automatic power path selection capability
The present invention relates to variable speed constant frequency (VSCF) devices and methods for maximizing engine generator efficiency. In one embodiment, a VSCF device may include at least two...
|
|
|
7021905 |
Fluid pump/generator with integrated motor and related stator and rotor and method of pumping fluid
A fluid pump integrated with a motor, a fluid pump/generator device, a rotor for a fluid pump/generator device, a stator for a fluid pump/generator device and a method for pumping fluid are...
|
|
|
7012341 |
Electric power generator equipment
In order to obtain an electric power generator equipment capable of efficiently generating electric power and capable of reducing cost, without a water bath and constructive maximum height, the...
|
|
|
6998728 |
Method and apparatus for controlling output current of turbine/alternator on common shaft
An electrical system and method for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either...
|
|
|
6989610 |
Electrical system for turbine/alternator on common shaft
An electrical system for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an AC...
|
|
|
6979914 |
Power generating apparatus
A power generating apparatus has a power generator 4 for generating AC power, a gas turbine engine 2 for driving the power generator 4 , and an inverter device 5 for converting the AC power...
|