Abstract
Certain combustion processes are inherently unstable due to the coupling of the flame and the acoustic modes of the combustion chamber. Such instabilities lead to oscillating heat release and pressure, which are undesirable. A means to eliminate these oscillations is to design a controller to monitor the fluctuating pressure upstream and modulate the fuel injection accordingly. Making use of a recently developed nonlinear model for a premixed ducted flame, we demonstrate in this paper advances in robust control can be used to methodically synthesize a controller and analyse the resulting closed-loop system. Precisely, H ∞ loop-shaping is employed to obtain a controller and μ-analysis and Integral Quadratic Constraints are applied to prove the closed-loop stability of the nonlinear model. Open- and closed-loop simulations are also provided.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.