Combined cycle electric power plant and a gas turbine having a b

Details Combined cycle electric power plant and a gas turbine having a b Combined cycle electric power plant and a gas turbine having a b

1974-08-08

1976-06-29

Gordon, Clarence R.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60 3928R, 60 3914, F02C 762

Patent

active

039656748

ABSTRACT:
A combined cycle electric power plant includes gas and steam turbines and steam generators and a digital/analog control system. The control system includes a digital automatic control and an analog backup control which are interfaced to control the gas turbine fuel flow for speed and load control purposes. The backup control includes a speed/load control which functions on a feedforward speed control basis without speed feedback correction and on a feedforward load control basis without load feedback correction. The forward speed/load control channel is subjected to high and low limit action and the fuel reference output is applied to a feedback type fuel control, i.e. a throttle valve positioning control. Limit action is also placed on the forward speed/load control channel by a temperature control, a surge control and an overspeed control.

REFERENCES:
patent: 2971337 (1961-02-01), Wintrode
patent: 3382671 (1968-05-01), Ehni
patent: 3421317 (1969-01-01), Bedford
patent: 3422800 (1969-01-01), LaHaye
patent: 3469395 (1969-09-01), Spitsbergen
patent: 3520133 (1970-07-01), Loft
patent: 3638422 (1972-02-01), Loft
patent: 3639076 (1972-02-01), Rowen
patent: 3834361 (1974-09-01), Keely

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