Title :
Adaptive controller designs for nonlinear periodic systems
Author_Institution :
Coll. of Inf. Eng., Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
In this paper, the design of adaptive controllers is presented for a class of periodically time-varying nonlinear systems. Saturated adaptation mechanisms are suggested for providing bounded estimation, by which the designed controllers can drive the state error to zero, while all the signals in the closed-loop are ensured to be bounded. The flexibility in choice of adaptation laws is illustrated by constituting partially-or fully-saturated adaptation laws. Open-loop adaptation laws are also characterized and compared analytically.
Keywords :
adaptive control; control system synthesis; nonlinear control systems; open loop systems; poles and zeros; time-varying systems; adaptive controller designs; closed-loop signals; nonlinear periodic systems; open-loop adaptation laws; periodically time-varying nonlinear systems; saturated adaptation mechanisms; Adaptive control; Control systems; Error correction; Nonlinear control systems; Nonlinear systems; Open loop systems; Programmable control; Signal design; State estimation; Time varying systems; adaptive control; nonlinear time-varying systems; periodic systems;
Conference_Titel :
Intelligent Computing and Intelligent Systems, 2009. ICIS 2009. IEEE International Conference on
Print_ISBN :
978-1-4244-4754-1
Electronic_ISBN :
978-1-4244-4738-1
DOI :
10.1109/ICICISYS.2009.5358262
