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Proceedings Paper

Control applications of detailed dynamic turbine engine simulations
Author(s): Walter F. O'Brien
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Paper Abstract

A plant model is required to design and develop a control system where the device to be controlled is a gas turbine engine. The desirable plant model is a wide-range, high-fidelity model which incorporates the fluid dynamic behavior of the engine internal flows. Such a model can predict the behavior of the engine in stable and unstable regimes; is easily altered to include design changes; and is suitable for the investigation of active controls for preventing instabilities and optimizing performace, especially in aircraft engines in connection with 'intelligent' engine concepts. Models of this kind are presently available and under continuing development. Both compression system and engine models may be constructed as one- or multi-dimensional flow simulations. When such models are linked with control models, a powerful analysis and development tool is produced. The usual control strategies for the stable, normal operating range may be investigated, as well as means to prevent and recover from unstable operation. The mathematical theory of detailed dynamic models is described and examples of specific simulations are given. The application of conventional and advanced control strategies to the simulation is shown by discussion and examples. The advantages of such model-controller combinations are illustrated.

Paper Details

Date Published: 30 May 1995
PDF: 8 pages
Proc. SPIE 2494, Sensing, Actuation, and Control in Aeropropulsion, (30 May 1995); doi: 10.1117/12.210511
Show Author Affiliations
Walter F. O'Brien, Virginia Polytechnic Institute and State Univ. (United States)

Published in SPIE Proceedings Vol. 2494:
Sensing, Actuation, and Control in Aeropropulsion
James D. Paduano, Editor(s)

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