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US 4,723,106 AGranted
Brushless generator exciter using hybrid rectifier
AssigneeGeneral Electric Company
InventorsIrving A. Gibbs, John H. Parslow, Andrew J. Galish
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Abstract
A brushless generator exciter employs a hybrid full-wave rectifier in which at least some of the rectifying diodes are controllable according to an external signal for adjusting the total exciter power fed to the generator rotor. An optical transmission technique is employed for communicating gate and sync signals between stationary and rotating components.
Claims12
Apparatus for controlling exciter power fed to a generator field winding on a rotor of an electrical generator comprising:
- at least one exciter winding on said generator rotor;
- a substantially constant-amplitude exciter field supply;
- means responsive to said exciter field supply for inducing an AC exciter power in said at least one exciter winding;
- and,
- control means responsive to an output of said generator for controlling a portion of said exciter power fed to said generator field winding whereby said generator is responsive to loads thereon;
- and, said control means including:
- means on said rotor for producing a synchronizing signal related to a condition of said exciter power;
- and,
- means for transmitting said synchronizing signal from said rotor to a stationary element.
6 more elements
Dependencies are inferred from the claim text.