Observer-based sliding mode control of combustion instability in a Rijke-type thermoacoustic system is considered. A commonly used thermoacoustic model with sensors and monopole-like actuators is linearized and formulated in a statespace form. It is assumed that the velocity or pressure sensor locations are chosen to assure the observability of the system. An observer-based sliding mode controller is then implemented to tune the actuators so that the system is asymptotically stable. The effectiveness of the controller is illustrated through a simulation example involving two modes and one sensor. The successful demonstration indicates that the observer-based feedback controller can be applied to a real combustion system with multiple modes.
Journal of Low Frequency Noise, Vibration and Active Control
SAGE Open Access
Scholarly Commons Citation
Rubio-Hervas, J., Reyhanoglu, M., & MacKunis, W. (2015). Observer-Based Sliding Mode Control of Rijke-Type Combustion Instability. Journal of Low Frequency Noise, Vibration and Active Control, 34(2). https://doi.org/10.1260/0263-09188.8.131.52