Title :
Adaptive Robust Reliable Controller for Uncertain Time-delay System with Actuator Failures
Author :
Qiao, Jun-Li ; Zhang, Jing-Mei ; Jia, Xin-Chun
Author_Institution :
Sch. of Math. Sci., Shanxi Univ., Taiyuan
Abstract :
This paper deals with the design problem of adaptive robust reliable control for uncertain time-delay systems with actuator failures. A more practical model of actuator failures characterized by the average factor and the failure degree is adopted. A sufficient criterion for the existence of the adaptive robust reliable controller is derived in linear matrix inequality (LMI) framework and a design procedure of such controllers is presented. The designed reliable controller can tolerate such failures and guarantee the state variables of the closed-loop system to converge, globally, uniformly and exponentially, to a ball in the state space. The efficiency of our design method is finally verified by simulation on the river pollution control problem
Keywords :
actuators; adaptive control; closed loop systems; control system synthesis; delay systems; linear matrix inequalities; robust control; state-space methods; uncertain systems; actuator failure; adaptive robust reliable controller; closed-loop system; linear matrix inequality; river pollution control problem; state space; uncertain time-delay system; Actuators; Adaptive control; Control systems; Design methodology; Linear matrix inequalities; Pollution control; Programmable control; Rivers; Robust control; State-space methods; Actuator failures; Adaptive control; Linear matrix inequality (LMI); Time-delay system; Uncertain system;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1712741
