Featured patents

Permanent Magnet Generator
US 08823331 B2, Sept. 2, 2014, Centrifugal of fly weight governor, Kim A. Lovejoy / Lovejoy Controls Corporation (Waukesha, US)
A permanent magnet generator for use with a turbine having an output shaft,…

Sensor PM Electrical Machines
US 08866449 B1, Oct. 21, 2014, Combined permanent magnet and wound field structure, Jacek F. Gieras et al. / Hamilton Sundstrand Corporation (Charlotte, US)
An electrical machine comprising:…

Conversion of Synchronous Generator to Synchronous Condenser
US 08754615 B2, June 17, 2014, Frequency responsive devices or networks, Gary Edward Gottung et al. / General Electric Company (Schenectady, US)
A synchronous condenser, comprising:…

Power Source Device
US 08736233 B2, May 27, 2014, Plural electrical conditions, Masaki Asari et al. / Kokusan Denki Co., Ltd. (Shizuoka, JP)
A power source device for supplying power to a load, an AC generator driven…

Electric Rotating Machine for Vehicle
US 08710807 B2, April 29, 2014, Thermal conditions, Hideaki Nakayama et al. / Denso Corporation (Kariya, JP)
An electric rotating machine for a vehicle, comprising:…

Control Device for Vehicle AC Generator
US 08704497 B2, April 22, 2014, Voltage of generator or circuit supplied, Shinji Nishimura et al. / Mitsubishi Electric Corporation (Tokyo, JP)
A control device for a vehicle AC generator, in which a DC voltage obtained…

Direct Power Control With Component Separation
US 08698461 B2, April 15, 2014, Induction generator, Joerg Kretschmann et al. / Woodward Kempen GmbH (Kempen, DE)
A method to control power output of a doubly-fed induction machine to a grid…

Direct Power and Stator Flux Vector Control of a Generator for Wind Energy Conversion System
US 08686695 B2, April 1, 2014, Including an electrical condition, Lars Helle et al. / Vestas Wind Systems A/S (Aarhus N., DK)
A method for generating a stator flux reference vector for controlling…

Synchronous Electrical Machine
US 08653797 B2, Feb. 18, 2014, Power factor or phase relationships, Stephen A. Long et al. / Rolls-Royce PLC (London, GB)
A synchronous electrical machine comprising a plurality of phases, detecting…

Electrical Machine Safety System
US 08648575 B2, Feb. 11, 2014, With armature or primary circuit control, John J A Cullen et al. / Rolls-Royce PLC (London, GB)
An electrical machine system comprising a permanent magnet assembly having…

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