Title :
Feedback limitations in nonlinear systems: from Bode integrals to cheap control
Author :
M.M. Seron;J.H. Braslavsky;P.V. Kokotovic;D.Q. Mayne
Author_Institution :
Cemter for Control Eng. & Comput., California Univ., Santa Barbara, CA, USA
Abstract :
This paper links the Bode integral characterization of performance limitations in linear control systems with the limiting cost of a particular linear cheap control. This link allows us to establish analogous feedback limitations in nonlinear systems. We show how unstable zero dynamics impose unavoidable obstructions to the closed-loop performance.
Keywords :
"Nonlinear systems","Nonlinear control systems","Control systems","Optimal control","Poles and zeros","Cost function","Linear feedback control systems","Force control","Mirrors","Attenuation"
Conference_Titel :
Decision and Control, 1997., Proceedings of the 36th IEEE Conference on
Print_ISBN :
0-7803-4187-2
DOI :
10.1109/CDC.1997.657071
