Title :
Linear and nonlinear analysis of controlled combustion processes. II. Nonlinear analysis
Author :
Banaszuk, Andrzej ; Jacobson, Clas A. ; Khibnik, Alexander I. ; Mehta, Prashant G.
Author_Institution :
United Technol. Res. Center, East Hartford, CT, USA
Abstract :
For pt.I see ibid. p.199-205 (1999). The results of analysis using a reduced-order model of combustion instability and experiments with active control using fuel modulation motivated a study of what performance is achievable using active control. Limitations due to lightly damped or unstable eigenvalues, delay, disturbances, and limited actuator authority and bandwidth are studied. In this part of the paper we focus on approximate nonlinear analysis of a combustion model with on/off actuators and study effect of delay and disturbances
Keywords :
combustion; control system analysis; delays; eigenvalues and eigenfunctions; gas turbines; nonlinear control systems; on-off control; reduced order systems; stability; active control; approximate nonlinear analysis; combustion instability; controlled combustion processes; delay; disturbances; fuel modulation; gas turbine combustor; lightly damped eigenvalues; limited actuator authority; limited actuator bandwidth; linear analysis; on/off actuators; reduced-order model; unstable eigenvalues; Bandwidth; Combustion; Frequency response; Fuels; Hydraulic actuators; Jacobian matrices; Performance analysis; Process control; Silver; Valves;
Conference_Titel :
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5446-X
DOI :
10.1109/CCA.1999.806177
