Title :
Switching adaptive control of uncertain linear systems
Author :
Liu, Tengfei ; Hill, David J. ; Wang, Cong
Author_Institution :
Res. Sch. of Inf. Sci. & Eng., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
This paper presents a new switching adaptive control strategy for a class of uncertain linear time-varying systems. Small-gain theorem is used for stability of the system without uncertainties. The uncertainties in the system are considered on discrete sets. The switching logic is designed based on the relationship between passivity and the adaptive systems, such that in the process of switching control, tracking control can be guaranteed by appropriately switching the parameter estimate. No estimators are needed for switching. This new method provides a solution for adaptive control of systems with unmeasurable state components. Simulation will be employed to show the effectiveness of the approach.
Keywords :
adaptive control; control system synthesis; feedback; linear systems; parameter estimation; set theory; stability; time-varying systems; tracking; uncertain systems; discrete finite set; feedback form; parameter estimation; small-gain theorem; switching adaptive control strategy; switching logic design; system stability; tracking control; uncertain linear time-varying system; unmeasurable state component; Adaptive control; Adaptive systems; Control systems; Linear systems; Logic design; Process control; Programmable control; Stability; Time varying systems; Uncertainty;
Conference_Titel :
Asian Control Conference, 2009. ASCC 2009. 7th
Conference_Location :
Hong Kong
Print_ISBN :
978-89-956056-2-2
Electronic_ISBN :
978-89-956056-9-1
