Title :
A separation principle for the control of a class of nonlinear systems
Author :
Atassi, A.N. ; Khalil, H.K.
Author_Institution :
Center for Control Eng. & Comput., California Univ., Santa Barbara, CA, USA
fDate :
5/1/2001 12:00:00 AM
Abstract :
We extend the separation results of a previous work of ours (1999) to a case where a globally bounded state feedback controller renders a certain compact set positively invariant and asymptotically attractive. The extension covers a wide range of control tasks that arise in adaptive control, servomechanisms, and practical stabilization. It is shown that by implementing the control law using a high-gain observer, we can recover the performance of the state feedback controller
Keywords :
adaptive control; invariance; nonlinear control systems; observers; servomechanisms; stability; state feedback; asymptotically attractive set; compact set; globally bounded state feedback controller; high-gain observer; positively invariant set; practical stabilization; separation principle; Adaptive control; Control systems; Convergence; Error correction; Nonlinear control systems; Nonlinear systems; Observers; Output feedback; Servomechanisms; State feedback;
Journal_Title :
Automatic Control, IEEE Transactions on
