Electricity: single generator systems – Generator control
Reexamination Certificate
2007-07-02
2010-10-05
Gonzalez, Julio (Department: 2839)
Electricity: single generator systems
Generator control
C322S059000, C322S029000
Reexamination Certificate
active
07808215
ABSTRACT:
A generator control unit (GCU) provides active damping of a synchronous generator by monitoring the speed of the synchronous generator and detecting oscillations in the monitored speed. The oscillations are indicative of torsional oscillations within the mechanical drivetrain including the synchronous generator or generators. In response to detected oscillations in the monitored speed, the GCU generates a varying set-point value that is used to control the excitation voltage provided to the synchronous generator. Varying the excitation voltage provided to the synchronous generator causes a variation in synchronous generator torque. By selectively varying the torque in the synchronous generator, the GCU provides active damping in the synchronous generator that decreases or dampens the torsional oscillations.
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Anderson et al., “Power System Control and Stability”, pp. 338, 339, 363-365.
Maddali Vijay K.
Markunas Albert L.
Gonzalez Julio
Hamilton Sundstrand Corporation
Kinney & Lange , P.A.
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