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RESEARCH PAPERS

Design of Robust Controllers for Gas Turbine Engines

[+] Author and Article Information
D. E. Moellenhoff, S. Vittal Rao

Department of Electrical Engineering, University of Missouri—Rolla, Rolla, MO 65401

C. A. Skarvan

Allison Gas Turbine, Division of General Motors Corp., Indianapolis, IN 46206-0420

J. Eng. Gas Turbines Power 113(2), 283-289 (Apr 01, 1991) (7 pages) doi:10.1115/1.2906560 History: Received January 17, 1990; Online April 24, 2008

Abstract

This paper describes robust controller design methodologies for gas turbine engines. A linear state variable model for the engine is derived using partial derivatives. The Linear Quadratic Gaussian with Loop Transfer Recovery (LQG/LTR) and the Parameter Robust Linear Quadratic Gaussian (PRLQG) robust controller design methodologies have been used to design a controller for gas turbine engines. A new method is proposed by combining the features of LQG/LTR and PRLQG methods and yields good robustness properties with respect to both unstructured uncertainties in the frequency domain and structured parameter variations in the time domain. The new procedure is illustrated with the help of an aircraft gas turbine engine model.

Copyright © 1991 by The American Society of Mechanical Engineers
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