Power plants – Combustion products used as motive fluid
Patent
1995-12-08
1998-02-17
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60 39141, 60 39281, F02C 928
Patent
active
057181110
ABSTRACT:
A control apparatus and method for controlling the start-up of a turbine engine, including a compressor and a fuel control system, uses a sensor for sensing a first parameter associated with the start-up, generally the exit temperature of the turbine engine, along with a second sensor for sensing a second parameter associated with the start-up, generally the rate of change of speed of the compressor. These sensed parameters are compared with desired start-up characteristics to determine a first error and a second error. A first look-up table based on fuzzy logic is utilized to determine a first graded membership that is associated with the first error, while a second look-up table based on fuzzy logic is utilized for determining a second graded membership associated with the second error. A third look-up table based on fuzzy logic is utilized for determining an output compensation factor for the start-up based on the graded memberships. Based on the output compensation factor, the start-up of the turbine engine is adjusted, generally by adjusting fuel flow through use of a fuel control system.
REFERENCES:
patent: 3902315 (1975-09-01), Martin
patent: 5212943 (1993-05-01), Harris
patent: 5524599 (1996-06-01), Kong et al.
patent: 5547337 (1996-08-01), Fork et al.
Ling Richard
Vaidyanathan Ganesan
Allied-Signal Inc.
Casaregola Louis J.
McFarland James W.
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