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| Number | Title | Issue Date |
| 7944185 | Power control system and method A power control system comprises a prime mover and a generator driven by the prime mover. A control device is coupled with the prime mover and the generator wherein the control device ascertains a power level of the generator and varies an output power of the prime ... | 05/17/2011 |
| 7944186 | Power control system and method A power control system comprises a prime mover and a generator driven by the prime mover. A control device is coupled with the prime mover and the generator wherein the control device ascertains a power level of the generator and varies an output power of the prime ... | 05/17/2011 |
| 7692413 | Power control system and method A power control system comprises a prime mover and a generator driven by the prime mover. A control device is coupled with the prime mover and the generator wherein the control device ascertains a power level of the generator and varies an output power of the prime ... | 04/06/2010 |
| 7550952 | Electric power control apparatus, power generation system and power grid system An electric power control apparatus outputs output from a power generation apparatus to a power system has a power converter that converts power output from the power generation apparatus and a power storage apparatus that stores output from the power generation app... | 06/23/2009 |
| 7521906 | Generating system with a regulated permanent magnet machine An electromechanical power transfer system that transfers power between a prime mover and a direct current (DC) electrical power system, comprises: a permanent magnet machine (PMM) that has a permanent magnet (PM) rotor coupled to the prime mover, a stator with a mu... | 04/21/2009 |
| 7498777 | Electricity production circuit The present invention relates to a circuit for producing electricity, the circuit comprising: a first rectifier comprising inputs and an output; a second rectifier comprising inputs and an output, the inputs of the... | 03/03/2009 |
| 7439715 | Dual 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 |
| 7400117 | Generating system with a regulated permanent magnet machine and an active rectifier An electromechanical power transfer system that transfers power between a prime mover and a direct current (DC) electrical system, comprises: a permanent magnet machine (PMM) that has a permanent magnet (PM) rotor coupled to the prime mover, a stator with a multipha... | 07/15/2008 |
| 7365521 | Fault tolerant architecture for permanent magnet starter generator subsystem A permanent magnet starter/generator subsystem configured in a fault tolerant architecture is described herein for small engine applications. The system allows for lighter system weight, improved system reliability, higher performance capability and reduced maintena... | 04/29/2008 |
| 7355367 | System 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 |
| 7352157 | Voltage regulator with improved protection and warning system This invention discloses a vehicle electrical system voltage regulator with improved electrical protection and warning means that discerns and responds to regulator, generator, or vehicle electrical system operation and malfunctions. The regulator includes monitorin... | 04/01/2008 |
| 7339355 | Generator with utility fault ride-through capability A wind powered turbine with low voltage ride-through capability. An inverter is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate ... | 03/04/2008 |
| 7332894 | Power generation apparatus using AC energization synchronous generator and method of controlling the same In a power generation apparatus equipped with an AC energization synchronous generator, when energization of a secondary winding starts to conduct connecting to the network of the AC energization synchronous generator to a network voltage, energization of the second... | 02/19/2008 |
| 7330016 | Induction 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 |
| 7327123 | Controller for AC generator A control system that can accommodate the wide variations in the output of a generator, such as a permanent magnet alternator, while providing an output with relatively uniform phase ripple. The control system includes a zero crossing detector and variable ramp gene... | 02/05/2008 |
| 7309974 | System 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 |
| 7292011 | Electrical protection of a generator controller A generator system includes a generator control for providing electrical power to a main generator. The main generator is mechanically coupled to an electrical power source that provides electrical power to the generator control during operation of the main generato... | 11/06/2007 |
| 7268441 | Control device for motor generator In the control device for motor generator in which an engine is started and power generation is performed while a vehicle is running, a field current limit value Ifm in electric driving to start the engine is larger than a field current limit value Ifg in power gene... | 09/11/2007 |
| 7250794 | Voltage source converter A voltage source converter with a line-side diode rectifier, a load-side inverter with an electronic circuit, a power supply for the electronic circuit, and a slim DC link with a DC link capacitor is described. The slim DC link connects a DC output side of the line-... | 07/31/2007 |
| 7245111 | Regulator system for alternator An improved regulator system is disclosed for controlling a field winding of an alternator to regulate the charging of a battery. The improved regulator system comprises an internal regulator mounted onto the alternator. The internal regulator has an internal regula... | 07/17/2007 |
| 7242167 | Fault tolerant architecture for permanent magnet starter generator subsystem A permanent magnet starter/generator subsystem configured in a fault tolerant architecture is described herein for small engine applications. The system allows for lighter system weight, improved system reliability, higher performance capability and reduced maintena... | 07/10/2007 |
| 7239113 | Method for reducing undesired currents in an electrical power generation system An electrical power generation system is provided, and a method of reducing undesired currents therein. The method includes the steps of delivering current via at least one variable frequency switching means, and adjusting a switching frequency of the at least one v... | 07/03/2007 |
| 7233129 | Generator with utility fault ride-through capability A wind powered turbine with low voltage ride-through capability. An inverter is connected to the output of a turbine generator. The generator output is conditioned by the inverter resulting in an output voltage and current at a frequency and phase angle appropriate ... | 06/19/2007 |
| 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 controlling exciter current output to the synchronous ... | 06/05/2007 |
| 7224148 | Vehicle power-generation control unit The vehicle power-generation control unit includes a voltage detecting circuit detecting a generation voltage of a vehicle generator driven by a vehicle engine, a switching device allowing an exciting current to flow into an exciting winding of the vehicle generator... | 05/29/2007 |
| 7218500 | High-voltage generator and accelerator using same In a high-voltage generator including a CW circuit (high-voltage circuit), where the CW circuit generates a high voltage through booster circuits that are provided for boosting an input voltage and connected to one another in multiple stages, a conductive shielding ... | 05/15/2007 |
| 7211989 | Method for acceleration of a shaft run, as well as an apparatus for carrying out the method A method for acceleration of a shaft run that a turbine, in particular a gas turbine, a generator and an excitation machine connected to one another by a common shaft, includes accelerating the turbine is accelerated using acceleration apparatus during a starting pr... | 05/01/2007 |
| 7196498 | Method and apparatus for generator control A generator control circuit is provided that includes a first circuit (44) monitoring a generator voltage change rate and producing a first output when the voltage change rate is above a first level, a second circuit (48) monitoring a generator current... | 03/27/2007 |
| 7161329 | Generator controlling system The operation of a generator and the loads placed on the generator are controlled in response to measuring the loads and generator operating parameters and controllably altering the operating conditions in response to comparison of the measurements to respective set... | 01/09/2007 |
| 7116082 | Synchronization controller for multiple pulsed alternator applications A control concept for large pulsed power applications that use multiple pulsed alternators to generate high-energy current pulses. Pulsed alternators produce a large reaction torque during discharge, but paired pulsed alternators are characterized by equal and oppos... | 10/03/2006 |
| 7116083 | Method and system for providing current limiting controllers for high reactance permanent magnet generators A system and method is provided for overload and fault current protection of a permanent magnet generator. The system comprises a permanent magnet machine, a DC link, an inverter, coupled between the permanent magnet machine and the DC link, and a controller adapted... | 10/03/2006 |
| 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 frequency (CF), adjustable variable frequency (AVF) and narrow range variab... | 10/03/2006 |
| 7112944 | Electrical power system for multi-use power conditioning and engine start A synchronous and bi-directional power conversion module (140) for use in a variable frequency power conversion system (100) comprises a first input/output side (142) for AC power input/output and DC power source input; a second input/output sid... | 09/26/2006 |
| 7095597 | Distributed static var compensation (DSVC) system for wind and water turbine applications A power generating system wherein a variable speed turbine is mounted on top of a tower or tethered underwater. The reactive component of turbine generated electrical power is corrected automatically through electronic switched power-factor capacitor banks that are ... | 08/22/2006 |
| 7087449 | Oxygen-doped Al-containing current blocking layers in active semiconductor devices An active semiconductor device, such as, buried heterostructure semiconductor lasers, LEDs, modulators, photodiodes, heterojunction bipolar transistors, field effect transistors or other active devices, comprise a plurality of semiconductor layers formed on a substr... | 08/08/2006 |
| 7019495 | Inter-regulator control of multiple electric power sources The present invention includes a system and method for controlling multiple sources of electric power using inter-regulator control. The regulators in the system may be of a universal type that may operate either as a master regulator or a follower regulator. Determ... | 03/28/2006 |
| 6995545 | Control system for a sputtering system A fault handling algorithm processes a plurality of fault status signals from a sputtering system in a period of time to generate at least one command signal for affecting the operation of a power generator. ... | 02/07/2006 |
| 6949902 | Controller of rotating electric machine for vehicle A controller of a rotating electric machine for a vehicle has a magnetic field electric current command arithmetic device for commanding a magnetic field electric current by the command of a torque and electric power command arithmetic device, an electric power conv... | 09/27/2005 |
| 6930471 | Hybrid synchronous/induction generator power plant A power generation plant comprising a power generating unit that includes at least one first generator, such as an induction generator, coupled to at least one synchronous generator having a rotor with a superconducting (SC) coil. The induction generator and the SC ... | 08/16/2005 |
| 6923168 | Fuel control system and method for distributed power generation, conversion, and storage system A distributed power generating system enables very rapid and reliable start-up of an engine used to generate back-up power, thereby substantially reducing the need for stored power. More particularly, the distributed power generating system comprises a power bus ele... | 08/02/2005 |
