Electricity: single generator systems – Generator control – Combined diverse generator controls
Reexamination Certificate
2008-07-15
2008-07-15
Schuberg, Darren (Department: 2834)
Electricity: single generator systems
Generator control
Combined diverse generator controls
C322S046000, C322S054000, C322S058000, C322S061000, C322S069000
Reexamination Certificate
active
11820784
ABSTRACT:
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 multiphase alternating current (AC) winding coupled to an AC bus and a control coil with a winding that has a configuration to generate a magnetic field with flux that varies the reactance of the stator winding with the application of control coil current; a control coil current sensor for generating a control coil current signal that is representative of the level of electrical current in the control coil; an electrical current sensor for generating a DC bus current signal that is representative of the level of DC current through the DC bus; an electrical potential sensor for generating a DC bus potential signal that is representative of the level of DC potential on the DC bus; a fixed pattern active rectifier and inverter system coupled between the AC bus and a DC bus; a position sensing system for generating a rotor position signal that is representative of the angular position of the PM rotor; and a control coil current regulator system that regulates the control coil current.
REFERENCES:
patent: 5493200 (1996-02-01), Rozman et al.
patent: 5929537 (1999-07-01), Glennon
patent: 6741067 (2004-05-01), Taniguchi et al.
U.S. Appl. No. 10/996,441, Kevin Dooley.
U.S. Appl. No. 11/420,614, Kevin Dooley.
Dooley Kevin
Maddali Vijay K.
Rozman Gregory I.
Hamilton Sundstrand Corporation
Mican Stephen G.
Mohandesi Iraj A
Schuberg Darren
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