Active control of combustion instabilities using model-based controllers Article

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Overview

abstract

• An implementation of active control of thermoacoustic instabilities on a swirl-stabilized spray combustor is presented. Loudspeakers were used as control actuators in the closed-loop control scheme. Pressure transducers located in the combustion chamber produced the feedback signal in the control study. Experimental models of the combustor dynamics were developed using a nonparametric identification method. Linear quadratic Gaussian (LQG), LQG/loop transfer recovery, and H∞ loop-shaping controllers were derived and tested in simulation as well as experimentally. Phase-delay control was used as a baseline method to compare the performance of these different controllers. The advantages of the model-based controllers over the baseline strategy are clearly presented.

authors

• Acharya S.
• Allgood D.
• Campos Delgado Daniel Ulises
• Zhou K.

publication date

• 2003-01-01

funding provided via

• Air Force Office of Scientific Research, AFOSR: F49620-99-1-0179  Grant
• Office of Naval Research, ONR: N00014-97-1-0957  Grant

published in

• Combustion Science and Technology  Journal

Research

keywords

• Active control; Combustion instability; Model-based control Actuators; Combustors; Computer simulation; Control equipment; Feedback control; Loudspeakers; Photoacoustic effect; Pressure transducers; Closed-loop control schemes; Combustion

Identity

Digital Object Identifier (DOI)

• 10.1080/00102200302364

Additional Document Info

start page

• 27

end page

• 53

volume

• 175

issue

• 1