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6960900 |
Method and apparatus for starting a gas turbine using a polyphase electric power generator
A method to start a combined unit gas turbine and electrical unit having a static start drive including the steps of: applying a variable frequency voltage from the static start drive to a winding...
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6960840 |
Integrated turbine power generation system with catalytic reactor
The invention provides integrated turbogenerators having a turbine wheel, a compressor impeller, and a motor generator mounted to or mechanically constrained to a common shaft, and improved...
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6958550 |
Method and system for control of turbogenerator power and temperature
A power controller controls the turbine of a turbine powered generating system regardless of the load on the system to maximize the efficiency of the turbine and maintains the turbine at a...
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6956301 |
Method and apparatus for controlling output voltages and frequencies 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...
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6952058 |
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...
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6933624 |
Hydropower generation apparatus and method
Apparatus and methods for generating power utilizing the flow of water from an upper water body to a lower water body in order to generate an upward buoyant force on at least one buoyant object...
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6921985 |
Low voltage ride through for wind turbine generators
A wind turbine. The wind turbine includes a blade pitch control system to vary a pitch of one or more blades and a turbine controller coupled with the blade pitch control system. A first power...
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6914344 |
Integrated starter/generator for a turbomachine
The invention relates to a turbomachine of axis X including a compressor and an integrated starter/generator. The field magnetic circuit of the starter/generator is mounted in the bore of at least...
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6912451 |
Control system for a redundant prime mover system
The present invention provides a control system for a redundant prime mover system to drive a machine having an engine coupled to the machine, and a motor/generator coupled to the machine and an...
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6911742 |
Method and apparatus for turbine/alternator on common shaft during start-up
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...
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6909199 |
Method and apparatus for compensating output voltage fluctuations 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...
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6906432 |
Electrical power generation system and method
An electrical power generating system and method wherein a generator is driven by an air-breathing engine. At any operating condition, for a given power output the engine efficiency is...
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6900553 |
Gas turbomachinery generator
A gas turbomachinery electricity generation apparatus includes a gas turbomachinery arrangement having an associated rotary drive take-off, an electricity generating arrangement which includes a...
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6897573 |
Electrical voltage generating device
A manually operated voltage generating device provides an electrical voltage for operating an electronic unit such as a remote control handheld unit. The device has a permanent magnet mounted in a...
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6897578 |
Integrated microturbine gearbox generator assembly
A microturbine engine comprising a turbine including a first housing and a turbine rotor. The engine also includes a generator having a second housing and a generator rotor. The generator rotor is...
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6897577 |
Methods and system for power generation
A method of operating a power generation system and a power generation system are provided. The method includes coupling at least one electrical generator to at least one prime mover, wherein the...
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6891282 |
Method and apparatus for monitoring turbine parameters of turbine/alternator on common shaft
An electrical system and apparatus for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable...
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6888263 |
Gas turbine generator
A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas...
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6885114 |
Miniature hydro-power generation system
A miniature hydro-power generation system may produce electric power from a flow of liquid. The miniature hydro-power generation system may include a housing that includes a plurality of paddles...
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6882060 |
Turbine generating apparatus
A turbine generating apparatus includes a control unit which controls the turbine generating apparatus as follows. During a system connection running mode, a fuel is fed to the gas turbine at a...
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6876100 |
Small power generating device and water faucet device
A small generator includes a hydraulic turbine provided in a fluid path rotating with a passage of a fluid in a predetermined flow and a rotator coupled to the hydraulic turbine rotating together...
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6864595 |
Detection of islanded behavior and anti-islanding protection of a generator in grid-connected mode
A method of controlling a generator system connected to an electric power system in which the output frequency characteristic of the generator system is measured, a first phase angle and frequency...
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6864593 |
Device for producing of electric energy and of signal transmitting pressure pulses
The invention is directed to a device for the generation of pressure pulses, being intended for transmitting signals, in a fluid-carrying channel ( 2 ), using a pulser ( 1 ) designed to be...
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6853096 |
Wind turbine
A rotation shaft is installed in the center of a wind turbine. Blades are secured to the rotation shaft to be circumferentially spaced apart one from another. Each blade has a lattice composed of...
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6847129 |
Turbine generator starting method and turbine generation system
An object of the present invention is to provide a turbine generation system in which a starting inverter circuit for starting a turbine generator is additionally employed so that the system...
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6841891 |
Electrogasdy anamic method for generation electrical energy
A process is provided for producing electrical energy from thermal energy in which charges are separated between two working media triboelectrically or electrostatically, the charges are moved away...
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6838781 |
Control system for a cogeneration unit
A control system for a cogeneration unit, the cogeneration unit including a heat engine and an alternator, driven by the heat engine, which generates AC electricity for an electrical load. The...
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6832486 |
Electrical machine
An electrical machine, such as a generator or motor, is incorporated in a gas turbine engine. The engine has compressor blades which are shrouded at. Beyond the shroud, an electrical machine is...
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6812586 |
Distributed power system
A power generation system is disclosed. In one embodiment, the power generation system includes a fuel source, a turbogenerator coupled to the fuel source, and a power controller coupled to the...
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6812587 |
Continuous power supply with back-up generation
A continuous power supply may include a turbogenerator to provide power to supply the load and or an energy storage element and possibly also to the primary energy source. Utilizing an isolated DC...
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6798080 |
Hydro-power generation for a water treatment system and method of supplying electricity using a flow of liquid
A hydro-power generation system for use in conjunction with a water treatment system is disclosed. The embodiments of the hydro-power generation system include an impeller rotatably positioned in a...
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6794766 |
Method and operational strategy for controlling variable stator vanes of a gas turbine power generator compressor component during under-frequency events
A method is provided for controlling variable inlet and stator vanes of a heavy-duty gas turbine electrical power generator compressor component upon occurrence of power grid under-frequency...
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6791204 |
Torque generation for salient-pole synchronous machine for start-up of a prime mover
A system and method to provide an improved power electronics starting system ( 100 ) in which starting torque is delivered by a salient pole synchronous machine ( 102 ), while associated power...
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6787933 |
Power generation system having transient ride-through/load-leveling capabilities
A power generation system includes a turbogenerator having a motor/generator and a turbine coupled to a common shaft, and generates AC power. A first power converter is coupled to the...
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6784565 |
Turbogenerator with electrical brake
In an integrated turbogenerator system having an air intake for a compressor to supply combustion air to a combustor, an electric brake device such as a resistor is connected to the electrical...
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6777823 |
Integrated continuous power system assemblies having multiple nozzle block segments
A continuous power system assembly is provided that includes an integrated shaft-driven unit. The unit contains a turbine, an alternator, a flywheel and a feed pump, all of which are coupled to the...
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6762512 |
Methods for starting a combustion turbine and combustion turbine generator configured to implement same methods
A method for starting a combustion turbine generator 10 includes configuring the generator so that the generator's rotor 16 is connected to receive all DC electrical power from the armature 30...
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6750633 |
Electrical circuit for generating a three-phase alternating current
An electrical circuit for producing a three-phase AC current from a low-power generator (10 kW to 5 MW) and for feeding the current into a power grid has a forward mode where energy flows from the...
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6750557 |
Redundant prime mover system
The present invention provides a redundant prime mover system to drive a machine having an engine coupled to the machine, and a motor/generator coupled to the machine and an electrical network...
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6724099 |
Method and apparatus for starting up a turboset
In order to achieve efficient utilization of components required for the generator operation, during the run-up of a turboset having a gas turbine, a generator and also a rectifier exciter, the...
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6724098 |
Generator system with gas turbine
In a generator system having a gas turbine ( 1 ) and a generator ( 2 ), which is driven by the gas turbine ( 1 ), an electricity supply network ( 5 ) is supplied from an energy reservoir ( 6 ) when...
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6713892 |
Automatic turbogenerator restarting system
A method and system to automatically restart a permanent magnet turbogenerator/motor when a fatal fault is detected. The automatic restart logic includes time constraints and limitations on the...
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6703719 |
Systems and methods for managing a battery source associated with a microturbine power generating system
A microturbine power generating system and associated method for managing a battery source associated with a microturbine power generating system is disclosed. The system and methods enable...
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6664653 |
Command and control system for controlling operational sequencing of multiple turbogenerators using a selected control mode
A command and control system and method for multiple turbogenerators in a grid parallel system includes a master controller to start, sequence, coordinate power commands, and provide fault handling...
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6664654 |
System and method for dual mode control of a turbogenerator/motor
A method of controlling a permanent magnet turbogenerator/motor includes providing a protected load connected in parallel with the turbogenerator/motor through a pulse width modulated inverter...
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6661112 |
Fluid control system with automatic recovery feature
A fluid control method includes providing fluid flow through a conduit having a pressure sensitive shutdown valve; driving an electrical power generator with the turbine wheel and delivering...
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6639328 |
Microturbine/capacitor power distribution system
A power generation system is disclosed. In one embodiment, the power generation system includes a fuel source to provide fuel, a turbogenerator, coupled to the fuel source, to generate AC power,...
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6628005 |
Single speed turbine generator for different power system output frequencies in power generation systems and associated methods
A power generation system ( 10 ) and associated methods to compensate for different power system output frequencies are provided. The system ( 10 ) preferably includes a turbine ( 12 ) having a...
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6628006 |
System and method for recovering potential energy of a hydrogen gas fuel supply for use in a vehicle
A system 10 is provided for recovering the potential energy of a hydrogen gas fuel supply within a fuel cell powered vehicle 14 . The system 10 includes a conventional storage tank 16 which...
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6559551 |
Starter device for fuel cell system
A starter device, preferably for cold-starting, for fuel cell systems, including a current generation system, for generating electrical energy, and a gas generation system, for generating H 2 -rich...
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