Title :
Nonlinear robust disturbance rejection controllers for rotating stall and surge in axial flow compressors
Author :
Haddad, Wassim M. ; Leonessa, Alexander ; Chellaboina, Vijaya-Sekhar ; Fausz, Jerry L.
Author_Institution :
Sch. of Aerosp. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
5/1/1999 12:00:00 AM
Abstract :
We develop globally stabilizing robust/disturbance rejection controllers for rotating stall and surge in axial flow compressors with uncertain system dynamics and exogenous disturbances. Specifically, using the nonlinear-nonquadratic disturbance rejection optimal control framework for systems with bounded energy (square-integrable) L2 disturbances developed in Haddad et al. (1997) and the nonlinear-nonquadratic robust optimal control framework for systems with nonlinear structured parametric uncertainty developed in Haddad et al. (1997), a family of globally robustly stabilizing controllers for jet engine compression systems is developed. The proposed controllers are compared with locally stabilizing bifurcation-based controllers and recursive backstepping controllers
Keywords :
aerospace engines; asymptotic stability; compressors; nonlinear control systems; optimal control; robust control; uncertain systems; axial flow compressors; bounded energy L2 disturbances; exogenous disturbances; globally robustly stabilizing controllers; jet engine compression systems; locally stabilizing bifurcation-based controllers; nonlinear robust disturbance rejection controllers; nonlinear-nonquadratic disturbance rejection optimal control framework; recursive backstepping controllers; rotating stall; square-integrable L2 disturbances; surge; uncertain system dynamics; Bifurcation; Compressors; Control systems; Jet engines; Nonlinear dynamical systems; Optimal control; Robust control; Surges; Uncertain systems; Uncertainty;
Journal_Title :
Control Systems Technology, IEEE Transactions on
