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Multivariable control altitude demonstration on the F100 turbofan engineThe control system designed under the Multivariable Control Synthesis (MVCS) program for the F100 turbofan engine is described. The MVCS program, applied the linear quadratic regulator (LQR) synthesis methods in the design of a multivariable engine control system to obtain enhanced performance from cross-coupled controls, maximum use of engine variable geometry, and a systematic design procedure that can be applied efficiently to new engine systems. Basic components of the control system, a reference value generator for deriving a desired equilibrium state and an approximate control vector, a transition model to produce compatible reference point trajectories during gross transients, gain schedules for producing feedback terms appropriate to the flight condition, and integral switching logic to produce acceptable steady-state performance without engine operating limit exceedance are described and the details of the F100 implementation presented. The engine altitude test phase of the MVCS program, and engine responses in a variety of test operating points and power transitions are presented.
Document ID
19790055801
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lehtinen, B.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Dehoff, R. L.
(Systems Control, Inc. Palo Alto, Calif., United States)
Hackney, R. D.
(United Technologies Corp. Pratt and Whitney Aircraft Group, West Palm Beach, Fla., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1979
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
AIAA PAPER 79-1204
Meeting Information
Meeting: AIAA, SAE, and ASME, Joint Propulsion Conference
Location: Las Vegas, NV
Start Date: June 18, 1979
End Date: June 20, 1979
Sponsors: ASME, AIAA, SAE
Accession Number
79A39814
Distribution Limits
Public
Copyright
Other

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