Title :
Dissipativity-based switching adaptive control
Author :
Liu, Tengfei ; Hill, David J. ; Wang, Cong
Author_Institution :
Dept. of Inf. Eng., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
This paper presents a new switching adaptive control strategy for nonlinear systems with uncertainties on discrete finite sets. Differently to multiple model supervisory control, switching adaptive control needs no estimators for switching decisions. The switching logic is designed based on the relationship between passivity (or more generally dissipativity) and the adaptive systems, such that in the process of switching control, the transient boundary can be guaranteed by appropriately switching the parameter estimate. This makes it possible to apply the strategy in nonlinear systems modelled in local regions in the state space. Simulation will be employed to show the effectiveness of the approach.
Keywords :
adaptive control; discrete systems; nonlinear control systems; parameter estimation; state-space methods; uncertain systems; adaptive systems; discrete finite sets; dissipativity-based switching adaptive control; model supervisory control; nonlinear systems; parameter estimate; passivity; state space; switching control; switching decisions; switching logic; transient boundary; uncertainty; Adaptive control; Adaptive systems; Control systems; Logic design; Nonlinear systems; Parameter estimation; Process control; Programmable control; Supervisory control; Uncertainty;
Conference_Titel :
Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3871-6
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2009.5400120