Title :
Decentralized tracking with disturbance attenuation by nonlinear output feedback
Author :
Jiang, Zhong-Ping ; Zhou, Guangyu
Author_Institution :
Dept. of Electr. & Comput. Eng., Polytech. Univ. of Brooklyn, New York, NY, USA
Abstract :
The problem of decentralized output-feedback tracking with disturbance attenuation is addressed for a new class of large-scale and minimum-phase nonlinear systems. Common assumptions like matching and growth conditions are not required for the underlying decentralized system with a diagonal structure. A novel observer-based decentralized controller design is presented. The proposed decentralized output-feedback laws achieve asymptotic tracking and internal Lagrange stability when the disturbance inputs disappear, and guarantee external stability in the presence of disturbance inputs. These external stability properties include Sontag´s ISS and iISS conditions and standard L2-gain property
Keywords :
asymptotic stability; decentralised control; feedback; large-scale systems; nonlinear systems; observers; tracking; Lagrange stability; Sontag conditions; asymptotic stability; decentralized control; disturbance attenuation; large scale systems; minimum-phase systems; nonlinear systems; observer; output-feedback; tracking; Asymptotic stability; Attenuation; Centralized control; Control systems; Distributed control; Large-scale systems; Nonlinear control systems; Nonlinear systems; Output feedback; Telecommunication control;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.945931
