Identification and active control of thermoacoustic instabilities

This paper presents an implementation of identification and acoustic control of thermoacoustic instabilities on a swirl-stabilized spray combustor. Loudspeakers located upstream of the burner were used as control actuators in the closed-loop system. Experimental models of the combustor dynamics were developed using a non-parametric identification method. LQG and H∞ Loop-Shaping controllers were derived and tested in simulation as well as experimentally.

Experimental identification; H∞ control; LQG design; Thermoacoustic instabilities Closed loop control systems; Control system analysis; Control system synthesis; Identification (control systems); Optimal control systems; Active control; Loop shaping controllers; Swirl stabilized spray combustor; Thermoacoustic instability; Thermodynamic stability

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