Title :
Stability analysis for nonlinear feedback control systems with linear actuators
Author :
Fang, Jian´an ; Gu, Guoxiang ; Liu, Kang-Zhi
Author_Institution :
Dept. of Electr. Autom., Donghua Univ., Shanghai, China
fDate :
4/1/2003 12:00:00 AM
Abstract :
Often, nonlinear feedback controllers are implemented with linear actuators, which have faster dynamics when compared with non-linear dynamics of the plant and controller models. However, how faster should the dynamics of the linear actuator be to ensure stability of the given nonlinear feedback control system? This note gives an analysis for the underlying stability issues and provides quantitative measures for the linear actuators employed in nonlinear feedback control systems.
Keywords :
actuators; asymptotic stability; closed loop systems; control system analysis; feedback; linear systems; nonlinear control systems; BIBO stability; bounded-input-bounded-output stability; dynamics; input-to-state stability; linear actuators; nonlinear feedback control systems; quantitative measures; singular perturbed systems; small gain theorem; stability analysis; Eigenvalues and eigenfunctions; Feedback control; Hydraulic actuators; MATLAB; Mathematics; Notice of Violation; Packaging; Spectral analysis; Stability analysis; Stochastic processes;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2003.809777
