Quenching oscillations in combustion instabilities using model-based closed-loop multiplicative control

Author

Bouziani, F. ; Landau, I.D. ; Bitmead, R.R.

Author_Institution

Lab. d´Autom. de Grenoble, ENSIEG, St. Martin d´Hères, France

fYear

2007

fDate

2-5 July 2007

Firstpage

1997

Lastpage

2003

Abstract

This papers deals with active control of combustion instabilities through measurement and feedback of pressure oscillations. The measurement is used to construct a multiplicative feedback control. The aim of such a control is to quench the oscillations associated with the instability associated with lean pre-mixed combustion. This quenching is analyzed using the Krylov-Bogoliubov approach applied to a tractable gray-box model of the underlying process and fitted using experimental data. A linear and a nonlinear feedback law are considered and conditions for quenching the oscillations established. Both give successful results verified by the simulation tests.

Keywords

closed loop systems; combustion; feedback; nonlinear control systems; pressure control; pressure measurement; stability; Krylov-Bogoliubov approach; active control; combustion instabilities; instability; lean premixed combustion; model-based closed-loop multiplicative control; multiplicative feedback control; nonlinear feedback law; oscillations quenching; pressure oscillations feedback; pressure oscillations measurement; tractable gray-box model; Approximation methods; Combustion; Computational modeling; Data models; Equations; Mathematical model; Oscillators; Krylov-Bogoliubov method; active control; combustion instability; nonlinear oscillating systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference (ECC), 2007 European

Conference_Location

Kos

Print_ISBN

978-3-9524173-8-6

Type

conf

Filename

7068547