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Multivariable control altitude demonstration on the F100 turbofan engine

Author
Hackney, R. D.
Published
JAN 1, 1979.
Physical Description
1 electronic document
Additional Creators
Dehoff, R. L. and Lehtinen, B.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
The F100 Multivariable control synthesis (MVCS) program, was aimed at demonstrating the benefits of LGR synthesis theory in the design of a multivariable engine control system for operation throughout the flight envelope. The advantages of such procedures include: (1) enhanced performance from cross-coupled controls, (2) maximum use of engine variable geometry, and (3) a systematic design procedure that can be applied efficiently to new engine systems. The control system designed, under the MVCS program, for the Pratt & Whitney F100 turbofan engine is described. Basic components of the control include: (1) a reference value generator for deriving a desired equilibrium state and an approximate control vector, (2) a transition model to produce compatible reference point trajectories during gross transients, (3) gain schedules for producing feedback terms appropriate to the flight condition, and (4) integral switching logic to produce acceptable steady-state performance without engine operating limit exceedance.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19790016844.
Accession ID: 79N25015.
E-050.
NASA-TM-79183.
Joint Propulsion Conf.; 18-20 Jun. 1979; Las Vegas, NV; United States.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15725423