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| Number | Title | Issue Date |
| 8169197 | Device for damping control of mechanical torsional oscillations of an electrical alternating current generator of multi-phase power supply system A device for damping control of mechanical torsional oscillations of an electrical alternating current generator connected to a multi-phase power supply system, includes a controllable converter of an HVDC installation connected to the power supply system, a measure... | 05/01/2012 |
| 8098054 | Optimal load controller method and device A method and device for optimizing power output of a power generation system having a load engaging system, a load optimizing system, a load selection system, a motive driver and one or more loads or power transfer parameters. The power generation system is illustra... | 01/17/2012 |
| 8093870 | Generator apparatus with active load dump protection A generator apparatus includes a generator, a generator controller, and a rectifier bridge. A detector unit for recognizing a load shutoff is also provided. When a load shutoff is recognized, a switch is controlled to be transmissive so that energy produced by the l... | 01/10/2012 |
| 7973517 | Control device for vehicle power converter The control device detects the B-terminal voltage by a B-terminal voltage detection section. When an abnormal voltage detection section detects that a voltage value of the detected B-terminal voltage is equal to or higher than a predetermined voltage value, all swit... | 07/05/2011 |
| 7948217 | Distributed generation system and power system stabilizing method A distributed generation system that can suppress a voltage fluctuation caused by a distributed generation by an apparatus of a small power capacity in the distributed generation itself and stabilize the power system voltage without inserting interharmonic voltage o... | 05/24/2011 |
| 7948216 | Control apparatus for automotive alternator and automotive power generation system A control apparatus controls power generation of an electric generator and communicates with an external control apparatus. The control apparatus includes: a control circuit that controls the power generation of the electric generator according to a command signal t... | 05/24/2011 |
| 7919949 | High efficiency generator A generator system that includes a three-phase AC machine and an active rectifier bridge employing low on-resistance MOSFET switches for converting the AC current from the machine to a DC current. The system also includes a switch control circuit to switch the MOSFE... | 04/05/2011 |
| 7902798 | Electric power generation control apparatus for vehicle alternator An electric power generation control apparatus for a vehicle alternator mounted on a motor vehicle performs one of a constant output voltage control a constant torque control and a constant exciting current control in order to suppress a hunting phenomenon of the ve... | 03/08/2011 |
| 7830127 | Doubly-controlled asynchronous generator An electric power generator system or a motor comprising a doubly-fed asynchronous generator or motor comprising a stator and a rotor, a transformer having a first winding and a second winding, the first winding having a first end and a second end; and wherein the s... | 11/09/2010 |
| 7786708 | Starter/generator system with control to address a voltage rise A control circuit for a generator has a control function that monitors the voltage across a bus capacitor. The circuit delivers excess voltage back to associated stator windings if an unduly high voltage is detected across the bus capacitor. ... | 08/31/2010 |
| 7663348 | Distributed generation system and power system stabilizing method A distributed generation system that can suppress a voltage fluctuation caused by a distributed generation by an apparatus of a small power capacity in the distributed generation itself and stabilize the power system voltage without inserting interharmonic voltage o... | 02/16/2010 |
| 7629776 | Control and power module for a rotating electrical machine A control and power module for a rotating electrical machine comprising a power circuit containing a number of branches, and a control circuit designed for controlling the power circuit when the machine operates in a nominal mode. The inventive module is characteriz... | 12/08/2009 |
| 7605569 | Acquisition circuit and controller circuit for an alternator An acquisition circuit for providing a first and a second validation signal based on an alternator output signal has a coupler being adapted for receiving the alternator output signal and for providing a coupling signal having information on the phase of the alterna... | 10/20/2009 |
| 7592784 | Power manager for an electrical power generator An electrical power generator includes a controller for making a full power capacity of the generator available for consumption by at least one intelligent load coupled to an output of the generator. The controller obtains data from which both a present output power... | 09/22/2009 |
| 7583062 | Method and system for protecting voltage regulator driver circuitry during field coil short circuit condition A method for protecting voltage regulator driver circuitry during a short circuit condition of an alternator field coil includes passively detecting a drop in field coil voltage during an on-portion of a duty cycle of the field coil voltage, wherein the passive dete... | 09/01/2009 |
| 7576519 | System and method for electric current and power monitoring and control of a generator A control device measures a voltage drop across a conductor in a generator to determine and control the total generator output current. A temperature of the conductor is also measured to improve the accuracy. The control device may further improve on the accuracy by... | 08/18/2009 |
| 7573243 | Generator control arrangement A generator control arrangement for an electrical power generator, the arrangement comprising a controller arranged to regulate output voltage from a generator to a target value, the controller including a voltage comparator for comparing a presented voltage with a ... | 08/11/2009 |
| 7570027 | Electric power generation control apparatus An electric power generation control apparatus is connected to an external controller composed of a vehicle interface circuit capable of generating and transferring a power switch-on signal to the electric power generation control apparatus. When receiving the power... | 08/04/2009 |
| 7545122 | Control method of generator When drive control of a generator is performed, PWM control of a switching circuit comprising an FET and a diode connected to the opposite ends of a winding is performed. In the vicinity of a moment in time Lmax where the winding has a maximum inductance L, an alter... | 06/09/2009 |
| 7535203 | Alternator An alternator comprises: an output rectifier converting AC voltage produced in an output armature winding into DC and supplying the DC electric power to a rechargeable battery and a current consumer; an excitation rectifier which is electrically separated from the o... | 05/19/2009 |
| 7528583 | Brushless generator In the m phase brushless generator, n (n | 05/05/2009 |
| 7521903 | Monolithic alternator regulator with configurable regulation modes An integrated circuit for controlling an alternator circuit in an alternator regulator charging system. The integrated circuit includes a first circuit for performing core regulation functions; a second circuit having a mask selectable operation circuit that allows ... | 04/21/2009 |
| 7521904 | Method and device for detecting errors in charging lines In a device for detecting errors in a charging line, the device detects an error in the charging line connecting the vehicle generator and an on-board battery. The device includes a bias circuit, a charging line error detecting means, and a warning means. The bias c... | 04/21/2009 |
| 7511459 | Controller computing a virtual tuning capacitor for controlling a free-piston stirling engine driving a linear alternator A feedback control circuit and method for a control system used to control an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. A switching mode rectifier connects the alternator winding to an output circuit... | 03/31/2009 |
| 7498775 | Electric machine A method and an apparatus are described for monitoring a rotating synchronous electric machine (9), which comprises a rotor having a rotor winding and a stator having a stator winding. The method comprises the steps of determining the stator winding current, ... | 03/03/2009 |
| 7486052 | Controller for vehicle AC generator A controller for a vehicle AC generator that allows the aging test time of a CMOS logic circuit to be reduced is provided. The controller includes a specified signal detecting circuit connected to a third external terminal to detect a specified signal, a voltage sel... | 02/03/2009 |
| 7474080 | Method and apparatus for providing economic analysis of power generation and distribution An economic dispatch program optimally allocates load demand specifying real power and reactive power to be generated by a power plant among various power generators in a manner so that each of the power generators are operated within its optimal operating space as ... | 01/06/2009 |
| 7443142 | Active rectification of alternator output without using a position sensor Disclosed herein is an automotive electrical system including a FET based rectifier and method of controlling the FET based rectifier without using either an alternator shaft position sensor or current sensors on each phase of the alternator output to control the sw... | 10/28/2008 |
| 7443143 | Controller of AC generator for vehicle A controller of a generator for a vehicle in the invention includes a battery voltage detecting circuit and an output terminal voltage detecting circuit of an AC generator. A value of a detected voltage of the output terminal voltage of the AC generator is set to be... | 10/28/2008 |
| 7439714 | Method for operation of a converter system The present invention relates to a method for operating a converter system of a wind turbine, wherein the converter system includes converter modules capable of converting electric power produced by a generator to electric power applicable to a utility grid. The con... | 10/21/2008 |
| 7436154 | Vehicle generator control device A vehicle generator control device includes a transistor chopper type exciting circuit for supplying an excitation current to a vehicle-mounted electric generator drivable by an engine of the motor vehicle. The exciting circuit comprises a bridge circuit having a fi... | 10/14/2008 |
| 7436083 | Up-wind type windmill and operating method therefor A structure of an upwind type wind turbine and the operating method thereof capable of preventing the occurrence of damage of the blades by evading excessive irregular loads from acting on the blades in the slanting direction in the event of power failure when stron... | 10/14/2008 |
| 7397224 | 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... | 07/08/2008 |
| 7372174 | Power converters The present invention provides a power converter that can be used to interface a generator that provides variable voltage at variable frequency to a supply network operating at nominally fixed voltage and nominally fixed frequency and including features that allow t... | 05/13/2008 |
| 7368893 | Voltage control apparatus for electric generator of vehicle In a vehicle voltage control apparatus which regulates the output voltage of the vehicle electric generator and which receives an external control signal for lowering the regulated voltage value, from an external apparatus such as the engine ECU during engine starti... | 05/06/2008 |
| 7365520 | Vehicle-generator output voltage control apparatus The vehicle-generator output voltage control apparatus includes a voltage control circuit regulating an output voltage of a vehicle generator by controlling a field current flowing into a field winding of the vehicle generator by controlling a conduction state of a ... | 04/29/2008 |
| 7365518 | Ion 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 |
| 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 |
| 7355296 | Wind turbine generator system To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel ... | 04/08/2008 |
| 7352096 | Electro-motive machine using Halbach array A Halbach array is radially disposed in an environment optimized for efficiency and controlled for efficient generation and use of power in order to generate, establish, and maintain a desired level of rotational energy with enhanced efficiency. ... | 04/01/2008 |
