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Patent No. 5979328

Vehicular Impact Signaling Device

An apparatus for the deployment of a visible plume to alert other motorists that a proximate motor vehicle has been involved in a collision.

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Class 322/89 - With armature or primary circuit control


Subclass of Class 322 - Electricity: single generator systems
Definition: Subject matter wherein the generator is controlled by controlling
No. of patents: 76
Last issue date: 06/28/2011


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NumberTitleIssue Date
7969123Exciter assemblies
An exciter assembly for supplying a field current to the rotor windings of a superconducting synchronous machine includes a pulse transformer having a stationary primary winding and a secondary winding that is mounted to the rotor of the superconducting synchronous ...
06/28/2011
7960948Electromechanical energy conversion systems
An exemplary power system may include an electric machine with multiple sets of stator windings, each set of windings being coupled through a separate switch matrix to a common voltage bus, and each of which may be spatially arranged in full pitch around the stator ...
06/14/2011
7746039Method for controlled application of a stator current set point value and of a torque set point value for a converter-fed rotating-field machine
The invention relates to a method for the controlled application of a stator-current target value (ISnom) and a torque target value (Mnom) for a polyphase machine (4) that is supplied by an electronic power converter. According to the in...
06/29/2010
7710081Electromechanical energy conversion systems
An exemplary power system may include an electric machine with multiple sets of stator windings, each set of windings being coupled through a separate switch matrix to a common voltage bus, and each of which may be spatially arranged in full pitch around the stator ...
05/04/2010
7439715Dual source power generating system
A power generating system provides high voltage AC power and low voltage DC power using a single generator. The generator includes a rotor and a stator that is wound with a first winding and a second winding. The first winding has a greater number of turns than the ...
10/21/2008
7365518Ion engine power supply
A power supply for an ion engine comprises a multiphase alternator and a power converter comprising a voltage multiplier coupled to each phase of the alternator. Each voltage multiplier comprises one or more staged voltage doublers. The alternator phases may be coup...
04/29/2008
7355367System and method for AC power generation from a reluctance machine
A system and method is provided for generating AC power using a synchronous reluctance machine (12) or a salient-pole synchronous machine (102) and a power converter (110). The present invention can be used to achieve power production for a sync...
04/08/2008
7348764Coil switching of an electric generator
An electric generator includes multiple coil sections and switches connected to the multiple coil sections for selectively interconnecting the coil sections in series, or in parallel, or in a series-parallel configuration across first and second power terminals for ...
03/25/2008
7336052Device for powering a variable speed drive
Variable speed drive comprising a main rectifier module (10) including thyristors (K1, K2, K3) to power a main continuous bus (15) from an external power network (5), an inverter module (30) delivering a variable cont...
02/26/2008
7332827Method for controlling a power-grid connected wind turbine generator during grid faults and apparatus for implementing said method
The present invention relates to a method and an apparatus for controlling a power-grid connected wind turbine generator during grid faults. During grid faults, the stator windings of the wind turbine generator are disconnected from the power grid and impedances for...
02/19/2008
7330016Induction generator power supply
A method for enhancing the operation of an electrical power supply includes selecting a prime mover having a chosen power rating. An induction motor having a first power rating at a rated speed and a second power rating at an overspeed is chosen. The overspeed may b...
02/12/2008
7309974System and method for AC power generation from a reluctance machine
A system and method is provided for generating AC power using a synchronous reluctance machine (12) or a salient-pole synchronous machine (102) and a power converter (110). The present invention can be used to achieve power production for a sync...
12/18/2007
7304400Power 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 phase of the induced voltage or the phase of the roto...
12/04/2007
7288923Voltage-limited electric machine
An electric alternator having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic circuits around different portions of the winding which may be configured relative to one another...
10/30/2007
7268522Excitation 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 power from a multiphase alternating current (AC) source to generate an...
09/11/2007
7245042Auxiliary wind energy generation from a wind power generation apparatus
A wind energy generator has a generator having a shaft extending therefrom, a plurality of blades interconnected to the shaft so as to be rotatable by the action of wind energy, and an elongate chamber cooperative with the shaft such that the chamber rotates relativ...
07/17/2007
7245112Energy discharge apparatus
There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an...
07/17/2007
7230361Efficient high-speed electric device using low-loss materials
The invention relates generally to an electric device, such as an electric motor, a generator, or a regenerative motor, having a wound stator core made from advanced low-loss material. In preferred embodiments, the electric device is an axial airgap-type configurati...
06/12/2007
7201244Vehicle for materials handling and other industrial uses
A heavy duty wheeled vehicle for an industrial environment is electrically driven by one or more switched reluctance motor traction drive system connected to the wheels. The switched reluctance motors are powered by an electrical generator that is driven by an engin...
04/10/2007
7193395Systems and method for boosting output of an alternator
Disclosed herein are two techniques, neutral point switching and field voltage boost, that will increase the output of today's 12 volt automotive electrical systems in vehicle idle conditions solely by the addition of circuitry. Neutral point switching enables the f...
03/20/2007
7161330Energy discharge apparatus
There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an...
01/09/2007
7159497Light beam alignment system
A saw such as a chop saw, a circular saw, a compound miter saw or a sliding compound miter saw having a rotatable saw blade is provided with a laser arbor alignment system. The laser arbor may include a power generator that generates power as the saw blade and the l...
01/09/2007
7154249Energy discharge apparatus
There is provided an energy discharge apparatus for dissipating a quantity of stored magnetic energy in a generator field coil of a brushless generator. The apparatus includes an exciter regulator responsive to an output signal of the generator and which provides an...
12/26/2006
7151359Variable reluctance generator
A variable reluctance generator has phase windings and a bias winding. By controlling the excitation produced by the bias winding, the speed of the machine or the DC link, a power converter using only diodes can supply power to a DC bus. A method of operating a vari...
12/19/2006
7084601Phase current detector
A first condenser is connected between output terminals of a rectifier circuit which receives an AC power as an input, and a three phase inverter is connected in parallel with respect to the first condenser, and output of the three phase inverter is supplied to a mo...
08/01/2006
7068015Wind power plant having magnetic field adjustment according to rotation speed
A wind power plant where the driving shaft communicates with a synchronous generator (3) optionally through a gear (2) and with a transformer, if any, communicating through an AC/DC inverter 7 with an HVDC transmission cable 9. The synchr...
06/27/2006
7048213Methods of operating a food waste disposer having a variable speed motor
The present invention provides a food waste disposer having an upper food conveying section, a motor section, a central grinding section and a controller. The upper food conveying section includes a housing forming an inlet to receive food waste. The motor section i...
05/23/2006
7044003Torque measuring device for electric motors
A torque measuring device for electric motors comprising a stator and a rotor is disclosed in which a holding apparatus to hold the stator of a test electric motor is provided, a drive apparatus for the rotor is provided and a torque sensor that is coupled to the dr...
05/16/2006
7038330Protection for wind power station
A wind power station comprises a wind rotor; a transmission mechanically coupled to the wind rotor; an asynchronous generator having a generator rotor mechanically coupled to the transmission, and a generator stator electrically coupled to a power grid; and a protec...
05/02/2006
7026794Dynamically controlled switching alternator system
A system and method to dynamically control a switching alternator is disclosed. A switching alternator system is disclosed that includes a plurality of windings configured to deliver an AC power and a plurality of switches configured to switch an electrical configur...
04/11/2006
6995478Gas turbine engine starter generator that selectively changes the number of rotor poles
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a motor mode or an generator mode. The machine includes a main rotor that is selectively configurable as an M-pole rotor or an N-pole rotor. The machine can also inc...
02/07/2006
6946750Wind power plant having a power generation redundancy system
A wind power installation having external and/or internal redundancy derived by multiple, independent power generating systems arranged in parallel, but switchably interconnected to allow substantial continued operation in the event of a critical component failure.
09/20/2005
6941785Electric fuel pump condition monitor system using electrical signature analysis
A pump diagnostic system and method comprising current sensing probes clamped on electrical motor leads of a pump for sensing only current signals on incoming motor power, a signal processor having a means for buffering and anti-aliasing current signals into a pump ...
09/13/2005
6933704Slip-inducing rotation starting exciter for turbine generator
A dynamoelectric machine combining the functions of an exciter, a turning motor, and a starting motor for a turbine. The machine operates in a first mode where the slip between a first stator winding and a first armature winding is positive and thus the magnetic fie...
08/23/2005
6930433Brushless electro-mechanical device
An electromotive machine having a stator element and a rotor element, the stator element including at least one set of N preferably toroidally shaped electromagnetic members, the electromagnetic members arranged along an arc a predetermined distance apart defining a...
08/16/2005
6924579Electrical machine
A motor/alternator is formed by a single toroidal magnet and flux conductors which, in combination with flux switches, create an alternating magnetic circuit around a power coil. The motor/alternator geometry minimizes flux leakage. The form of the flux conductor an...
08/02/2005
6903477Induction machine with motor and generator operation modes
An electric machine selectively operates as a generator mode or a motor mode. The electric machine includes a stator core, a multi-phase armature winding, a field coil, a moving core having a plurality of salient poles so as to move relative to the stator core to cr...
06/07/2005
6825640Generator arrangements
A permanent magnet fault tolerant generator 32 is driven by a variable speed shaft 34 to create AC power at terminals 36, converted at 40 to DC power before being applied to a load 38. The converter 40 is a bi-directional de...
11/30/2004
6815934Induction generator power supply
An induction generator power supply comprises a prime mover, an induction generator operably connected to the prime mover and having a generator output, and a phase shift circuit, having a circuit input and a circuit output, the circuit input connected to the genera...
11/09/2004
6734654Method of regulating a generator, especially a claw pole generator of an on-board vehicle electrical system
The method for regulating a generator including three stator windings (U, V, W) and a converter bridge (11) including controllable switch elements (15 to 20) includes temporarily connecting the stator windings (U, V, W) in an otherwise currentle...
05/11/2004
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