ARMARKOV adaptive control of self-excited oscillations of a ducted flame

Active control of thermo-acoustic instabilities represents a significant challenge and opportunity for feedback control technology. In this paper, we experimentally apply ARMARKOV adaptive control to a ducted flame with a servovalve actuator. This approach requires an identified model of the transfer function from the control input (modulated air stream) to the performance variable (microphone). This identification was performed under fuel-burning conditions. No analytical modeling was used for controller analysis or synthesis. The ARMARKOV adaptive controller suppressed the fundamental component of the limit cycle oscillation