DocumentCode :
2638083
Title :
A quadratic inequality approach for design of robust controller for a parametric uncertain jet engine
Author :
Nataraj, P.S.V. ; Srivastava, Suresh
Author_Institution :
Syst. & Control Eng., IIT, Mumbai, India
Volume :
1
fYear :
2003
fDate :
15-17 Oct. 2003
Firstpage :
289
Abstract :
The control logic of a modern jet engine is comprised of many control loops and the control system must account for the uncertainties in the model used in its design. The paper presents a quadratic inequality based methodology for designing a robust controller for a parametrically uncertain jet engine. The inequalities are used for the generation of controller bounds to achieve robust stability and tracking specifications prior to loop shaping. The design is done in the frequency domain and the evolved robust controller controls the system that does not have a distinct set of poles and zeros but a range over which each of the poles and zeros might lie. The methodology has multifarious advantages as it can be easily implemented, does not require template generation and provides the designer with a good insight into the QFT (quantitative feedback theory) bounds at any given design frequency and controller phase. The approach is demonstrated for the design of the speed control loop of a parametrically uncertain twin spool jet engine.
Keywords :
angular velocity control; closed loop systems; control system synthesis; digital control; frequency-domain synthesis; jet engines; poles and zeros; robust control; closed loop response; control logic; frequency domain; full authority digital engine control; parametrically uncertain jet engine; poles and zeros; quadratic inequality approach; quantitative feedback theory bounds; robust controller design; speed control loop; tracking specification; twin spool jet engine; Control system synthesis; Control systems; Design methodology; Jet engines; Logic design; Poles and zeros; Robust control; Robust stability; Shape control; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
TENCON 2003. Conference on Convergent Technologies for the Asia-Pacific Region
Print_ISBN :
0-7803-8162-9
Type :
conf
DOI :
10.1109/TENCON.2003.1273332
Filename :
1273332
Link To Document :
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