1
Runkle Mark Andrew, Ardley Glenn Henry, Mclaren Donald Gordon, Larsen Einar Vaugh, Weeber Konrad: Asynchronous conversion method and apparatus for use with variable speed turbine hydroelectric generation. Gen Electric, October 23, 1996: EP0739087-A2 (49 worldwide citation)

A hydroelectric power generation system (20) generates electrical power for an electrical utilization system (72). A controller (42) obtains a requested output electrical power level from a hydro-turbine unit (70) by using a signal indicative of water head (hmeas) to control speed of an asynchrcnous ...


2
Runkle Mark Andrew: Interconnection system for electrical systems having differing electrical characteristic. Gen Electric, December 18, 1996: EP0749190-A2 (37 worldwide citation)

An electrical interconnection system (100) comprises a rotary converter (102) and a controller (104). The rotary converter (102) is coupled to first and second electrical systems having a differing electrical characteristic (e.g., frequency or phase). The controller (104) bidirectionally operates th ...


3
Robert Alan Neidorff, Isaac Cohen, Richard L Valley: Method and apparatus for multi-phase power conversion. Texas Instruments Incorporated, John J Patti, Wade J Brady III, Frederick J Telecky Jr, April 27, 2010: US07706151 (15 worldwide citation)

A system and method for power conversion synchronizes multiple phases at a desired phase angle difference. The power conversion involves variable frequency switching, fixed on-time and provides power factor correction. A relative measure of a phase angle difference between two phases permits each ph ...


4
Chirgwin Keith M: Dynamoelectric machine. The Garrett Corporation, Lofstedt Ben E, Michaud Jr Frederick G, Miller Albert J, December 30, 1975: US3930175 (12 worldwide citation)

A dynamoelectric machine stator has a primary winding for single phase alternating current input and a secondary winding for polyphase alternating current to be supplied from output terminals. The secondary winding is connected such that at least two frequencies are provided at the terminals. The ro ...


5
Isaac Cohen, Robert A Neidorff, Richard L Valley: Method and apparatus for power converters having phases spaced at desired phase angles. Texas Instruments Incorporated, John J Patti, Wade J Brady III, Frederick J Telecky Jr, April 20, 2010: US07701730 (7 worldwide citation)

A system and method for power conversion synchronizes multiple phases at a desired phase angle difference. The power conversion involves variable frequency switching, fixed on-time and provides power factor correction. A relative measure of a phase angle difference between two phases permits each ph ...


6
Runkle Mark Andrew, Larsen Einar Vaughn: Interconnection system for transmitting power between electrical systems. Gen Electric, October 30, 1996: EP0740387-A2 (5 worldwide citation)

An electrical interconnection system (100) comprises a variable frequency rotary transformer (102) and a control system (104). The control system (104) adjusts an angular position of the rotary transformer (102) so that measured power (P1) transferred from a first electrical system (22) to a second ...


7
Larsen Einar Vaughn: Power flow control and power recovery with rotary transformers. Gen Electric, May 19, 1999: EP0917270-A2 (3 worldwide citation)

An interconnection system (100) for transferring power between a first grid (22) operating at a first electrical frequency and a second grid (24) operating at a second electrical frequency includes a rotary transformer (102) and a power recovery system (103). The power recovery system (103) recovers ...


8
Inductor alternators. Fiz Energet I An Latvssr, January 2, 1975: GB1379598-A (3 worldwide citation)

1379598 Inductor alternators FIZIKOENERGETICHESKY INSTITUT AKADEMII NAUK LATVIISKOI SSR 21 Dec 1971 59441/71 Heading H2A In an inductor alternator comprising a rotor 1 rotatable to produce cyclic variations in the magnetic permeances of a plurality of magnetic circuit paths formed between itself and ...


9
Rehder Robert Henry, Martin Wayne Jerome: Ensemble de fixation de bague collectrice pour barre haute puissance de frottement de courant triphase, Slip-ring mounting assembly for high-power rotary current collector system. General Electric Company, General Electric Company, Craig Wilson And Company, December 15, 2009: CA2351895 (2 worldwide citation)

An electrical current collector system includes a rotatable shaft (28); an electrically conductive slip ring (27); and a slip ring support assembly (42). The slip ring support assembly (42) comprises plural post insulators (102) spaced radially about the rotatable shaft for attaching the conductive ...


10
Runkle Mark Andrew, Larsen Einar Vaughn: Systeme, sous-station et procede pour interconnecter des systemes electriques ayant une caracteristique electrique differente. Gen Electric, April 30, 1997: FR2740629-A1 (2 worldwide citation)

An electrical interconnection system (100) comprises a variable frequency rotary transformer (102) and a control system (104). The control system (104) adjusts an angular position of the rotary transformer (102) so that mesured power (P1) transferred from a first electrical system (22) to a second e ...