Electricity: single generator systems – Automatic control of generator or driving means – Speed or frequency of generator
Reexamination Certificate
2011-03-29
2011-03-29
Ponomarenko, Nicholas (Department: 2839)
Electricity: single generator systems
Automatic control of generator or driving means
Speed or frequency of generator
C322S010000, C322S020000, C322S059000
Reexamination Certificate
active
07915868
ABSTRACT:
An embodiment of the present invention may seek to match the generator and grid voltages before the powerplant machine reaches the grid matching speed during the start-up process. An embodiment of the present invention may provide a predictive algorithm, or the like, to control the acceleration rate of the powerplant machine to target a particular phase angle differential between the powerplant machine and the grid when the powerplant machine reaches the grid matching speed. Here, the phase angle difference may be targeted such that a generator breaker may be closed immediately after the powerplant machine accelerates beyond the grid matching speed. This may avoid the generator experiencing a phase angle differential, which may add to the power transient associated with the generator breaker closure.
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Cunningham John N.
Maters John C.
Cusick Ernest G.
Davis Dale J.
General Electric Company
Landgraff Frank A.
Ponomarenko Nicholas
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