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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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7514808 |
Regenerative energy system
The invention relates to a regenerative energy system comprising a first energy producer and a second energy producer. The object of the invention is to improve the environmental compatibility of...
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7501799 |
Engine start system with a regulated permanent magnet machine
An electromechanical power transfer system that transfers power between a direct current (DC) electrical power system and a prime mover, comprises: a permanent magnet machine (PMM) comprising a...
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7471069 |
Voltage generator device, motor vehicle, control method for the voltage generator device, control method for the motor vehicle, and computer-readable recording medium storing program for causing computer to execute the control method
A voltage raising device that provisionally maintains an operation and function when there is an abnormality provided. If a battery voltage drops when an engine is restarted after an idle stop, the...
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7456510 |
Wind power generator
When a wind velocity sensor detects a wind velocity higher than a predetermined level, a timer device starts a waiting timer function during an operation timer period shorter than the waiting timer...
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7453241 |
Electronic controller matching engine power to alternator power and maintaining engine frequency for a free-piston stirling engine driving a linear alternator
A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An...
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7446425 |
Cooperative control apparatus
A cooperative control apparatus calculates the total electric load amount of a plurality of electrical loads (W), determines working states of the electrical loads (W), calculates a projected value...
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7400056 |
Engine starter-generator optimized for start function
A starter-generator system is configured to supply power to an aircraft electrical bus having a rated AC voltage magnitude, or receive power from a start converter, and includes a rotor and a...
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7365443 |
Generator start/stop controller
A method and apparatus is disclosed for starting and stopping a generator set that supplies power to a refrigeration system. An ambient temperature sensor is used rather than an in-box sensor in...
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7230344 |
Apparatus and method for transient and uninterruptible power
In accordance with certain exemplary embodiments, the present technique provides methods and apparatus for providing transient and uninterrupted power to protected loads. As one example, the...
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7227271 |
Method and apparatus for controlling an engine start system
An apparatus ( 80 ) controls a synchronous machine ( 20 ) used to start an engine ( 300 ) during an engine start operation. The apparatus comprises: an exciter current control unit ( 84 ) for...
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7170263 |
Method and apparatus for controlling on-vehicle generator
An apparatus for controlling an on-vehicle generator is provided. The apparatus comprises a switching element, current detecting unit, setting unit and driving unit. The switching unit turns on/off...
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7148580 |
Method of and system for starting engine-driven power equipment
A portable power source for starting a variety of outdoor power equipment, particularly a portable generator. The portable power source generally includes a housing, an electrochemical power...
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7122994 |
Control apparatus for a starter/generator system
A control apparatus ( 202 ) for a starter/generator ( 110 ) of an aircraft electrical power system is provided. During a start mode of operation, AC power is provided by the control apparatus ( 202...
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7116003 |
Aircraft starter/generator electrical system with mixed power architecture
A starter/generator electrical system for gas turbine powered aircraft with mixed power architecture to combine advantages of each. The mixed power architecture may be selected from constant...
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7061211 |
Gas turbine generating apparatus
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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7045991 |
Maximum power follow-up control apparatus
A power conditioner 10 is provided with a maximum power follow-up control portion 12 for setting a DC operating voltage of a power converter 11 , which converts output power of a power...
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7019413 |
SYSTEM HAVING AN ELECTRIC DEVICE WHICH FUNCTIONS BOTH AS AN ELECTRIC MOTOR FOR DRIVING MACHINES AND AS A GENERATOR TO GENERATE ELECTRICAL POWER, AND HAVING A POWER SOURCE FOR DRIVING THE ELECTRIC DEVICE
A system which has an electric device that functions in the system both as an electric motor for supplying power to machines and as a generator to generate electrical power. The system includes an...
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7002259 |
Method of controlling electrical rotating machines connected to a common shaft
A controller for high torque, low RPM wind turbines and ocean current turbines. The turbine consists of a large, input power shaft-mounted, rotating bull-gear with stationary powertrains mounted...
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6998726 |
Method and system for providing single-phase excitation techniques to a start exciter in a starter/generator system
A system and method is provided for starting a prime mover coupled to a synchronous starter/generator. The system includes an exciter converter that provides a non-fundamental only signal to a...
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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...
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6987330 |
Method and system for controlling a belt-driven integrated starter generator
A method for controlling an engine and a belt-driven integrated starter (B-ISG) connected to the engine. The method includes determining engine running indicators and engine stopped indicators....
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6987328 |
Power equipment apparatus having a power generation system
A power equipment apparatus includes an internal combustion engine and a generator operatively connected to the engine, wherein the generator is configured to generate electrical power. A...
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6969922 |
Transformerless, load adaptive speed controller
The invention in one embodiment is an improved variable speed engine/generator set with an integrated power conditioning system and control method including load shedding to generate high quality...
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6943531 |
Portable power supply incorporating a generator driven by an engine
A portable power supply includes an engine-driven generator that generates a first AC power. A rectifier rectifies the first AC power to a first DC power. A DC/DC converter converts a second DC...
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6940735 |
Power converter system
A power converter system advantageously employs a modular, bi-directionally symmetrical power converter assembly in a readily customizable configuration to interconnect a direct current power...
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6927500 |
Automotive accessories control system
Power generated by an alternator 2 and power generated by an electric motor 12 are controlled such that a power generation amount of either the alternator 2 or the electric motor 12 ,...
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6924563 |
Method and apparatus for controlling a microturbine
An apparatus for controlling a microturbine, the apparatus including: a rectifier adapted for converting at least one generated voltage from the microturbine to a DC link voltage; an inverter...
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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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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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6847194 |
Electric start for a prime mover
A system and method for using reluctance torque or a combination of both reluctance and reaction torque components of an attached synchronous machine ( 102 ) to accelerate a prime mover ( 116 ),...
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6838779 |
Aircraft starter generator for variable frequency (vf) electrical system
A starter-generator for an aircraft engine comprises a variable dynamoelectric machine alternatively operable as a motor or as a generator, having a rotor. A support motor is coupled to the...
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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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6677685 |
Controller for a continuously variable transmission
A clamp pressure controller for a variable ratio belt drive system for a generator is provided. The controller monitors the voltage at the output of the generator. If this falls the controller...
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6661206 |
Soft chopping for switched reluctance generators
The switched reluctance machine providing soft chopping in the output current controls the voltage across the phase winding. When the current through the phase winding in the generating mode...
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6657416 |
Control system for stand-by electrical generator
A generator structure is provided for generating an AC power for a load. The generator structure includes a generator connectable to a load and an engine operatively connected to the generator for...
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6583995 |
Permanent magnet generator and generator control
A system includes a permanent magnet generator, a dc link, an inverter coupled between the generator and the dc link, and a control for the inverter. The control regulates dc link voltage by...
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6359345 |
Hybrid motive power vehicle
The present invention provides a hybrid motive power vehicle capable of performing a regenerative power generation using an electric motor without causing a strange feeling for a driver. A buffer...
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6351692 |
Method and apparatus for configuring a genset controller for operation with particular gensets
A genset controller that is configurable for controlling a variety of types of gensets, as well as a method of configuring a genset controller for controlling a genset, are disclosed. The genset...
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6294843 |
Control system for a hybrid vehicle
The control system for the hybrid vehicle of the present invention, having an engine for producing a driving force for the vehicle, a motor for producing an assist driving force to assist the...
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6285089 |
Induction static start for a turbine generator with a brushless exciter and associated methods
In an electric power generation system (20) which includes a turbine (22) and a turbine generator (25) connected to the turbine (22) along a common shaft (21), an alternating current (AC) induction...
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6236123 |
Generator providing alternating current which has a selected frequency
An electrical generator has at least one rotating ring of field magnets which produce a circular array of magnetic fields, and a ring of generator output coils which are in the magnetic fields. The...
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6118238 |
Motor starting apparatus for an engine driven generator
A conventional motor controlling circuit is adapted to control an inverter that drives a permanent magnet generator as a motor to spin an engine to a speed sufficient to permit the engine to start....
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6031294 |
Turbogenerator/motor controller with ancillary energy storage/discharge
A turbogenerator/motor controller with a microprocessor based inverter having multiple modes of operation with an energy storage and discharge system including an ancillary electric storage device,...
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5998976 |
Power supply system
An arrangement for voltage supply with an electrical machine that can be operated as a generator or as a starter is proposed, which is operated by the engine in the generator mode and which brings...
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5998880 |
AC locomotive operation without DC current sensor
A system and method for controlling operation of a diesel electric traction vehicle of the type including a synchronous generator driven by a diesel engine for producing alternating current (AC)...
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5977647 |
Automatic pretrip for engine powered generator
A method and apparatus for making a pretrip diagnosis and identification of generator set problems which could cause shutdown or undesired operation of the generator set.
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