Electricity: single generator systems inventions 08/07

20070200535 - Fault current limiting: Generators 12a are for a distributed generation system. A control system 32a receives information about network faults 14a. In normal conditions, the control system 32a controls the field current in the field coils of the generator 12a, to maintain generator output voltage at the rated value. At the onset of... Agent: Manelli Denison & Selter

20070200533 - Power generation system for mobile power supply: The present invention is a mobile-energy generating system capable of providing redundant direct current power. It comprises a reciprocating engine and generator having dual fuel capability, a fuel cell, commercial electrical power hookups, and capacitors used for bridging purposes. Back-up fuel for the engine and fuel for the fuel cells... Agent: Sprint Communications Company L.p.

20070200534 - Vehicle generator: The vehicle generator includes a rotor around which a field winding is wound, a stator around which an armature winding is wound, a rectifier rectifying an AC voltage induced in the armature winding to generate a DC output current. The rectifier has a plurality of rectifying elements mounted to a... Agent: Oliff & Berridge, PLC

20070194761 - Charging control apparatus, charging control method: A charging control apparatus is adapted to control an alternator which is operable to generate a voltage to charge a battery which is operable to supply the voltage to an electric component. An interface is connected to the alternator, the battery, and the electric component and operable to input and... Agent: Oliff & Berridge, PLC

20070194760 - Generator control arrangement: Electrical power generation through a number of generators has efficiency benefits particularly with regard to aerospace applications. However, should parallel operation of these generators be interrupted through malfunction of one of the generators or otherwise, care must be taken in order to maintain the rate of electrical voltage for system... Agent: Manelli Denison & Selter

20070194763 - Control apparatus for electric vehicles: Right after a system operation start but before a smoothing capacitor has been sufficiently pre-charged, conversion voltage control is executed to control a voltage boosting converter so that a system voltage is first raised to a target value. After the smoothing capacitor has been pre-charged, the conversion voltage control is... Agent: Nixon & Vanderhye, PC

20070194762 - Buck/boost method of voltage regulation for a permanent magnet generator (pmg): The output voltage generated by permanent magnet generator (PMG) is regulated by controlling a buck/boost voltage applied to selected sub-coils within the PMG. The PMG includes a number of stator coils that are each divided into a number of sub-coils. A buck/boost voltage source generates a buck/boost voltage, and a... Agent: Kinney & Lange, P.A.

20070188153 - Energy conversion system with variable airgap distance and energy recovery method: P

20070188151 - Power generation control device for controlling power generation system of movable body and power generation control method: A power generation control device enables to conduct appropriate charge control and load limitations even if a technique (charge control technique) for restricting power generation by a generator in an accelerating state of a movable body is adopted in a movable body such as a vehicle in which a technique... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070188152 - Electric generation control apparatus for vehicle alternator: An electric generation control apparatus for a vehicle alternator receives an electric generation control signal transferred from an ECU placed apart from the control apparatus through a data transfer line. The control apparatus has a voltage comparator, a communication state judgment circuit, a serial data communication receiver, a PWM communication... Agent: Oliff & Berridge, PLC

20070182382 - 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 output rectifier to convert AC voltage produced in an excitation... Agent: Oliff & Berridge, PLC

20070182381 - Output voltage regulator for engine-driven generator: An output voltage regulator for an engine-driven generator that can satisfactory suppress fluctuation in output voltage, even when an output waveform of the generator is distorted. An engine revolution period that represents a period of output voltage is detected by use of an ignition signal. Data that represents an output... Agent: Arent Fox PLLC

20070182383 - Electric power converting device and power converting method for controlling doubly-fed induction generator: Disclosed herein is an electric power converting device and power converting method for controlling doubly-fed induction generators, which provides a synchronous generator for generating auxiliary electric power independently of a doubly-fed induction generator so as to generate electricity even in a system power-free environment, a grid-side converter is composed of... Agent: Frommer Lawrence & Haug

20070182384 - Vehicle rotating electric machine: An inverter device is mounted on the rotating electric machine body The inverter device includes a module unit having a converter circuit and a control unit that controls the operation of the converter circuit. The converter circuit is configured by connecting a plurality of the following series circuits in parallel,... Agent: Crowell & Moring LLP Intellectual Property Group

20070176579 - 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 switching of the FETs. In accordance with the teachings... Agent: Motorola, Inc.