Dissipativity-Based Switching Adaptive Control

被引:12
|
作者
Liu, Tengfei [1 ]
Hill, David J. [2 ]
Wang, Cong [3 ,4 ]
机构
[1] Australian Natl Univ, Res Sch Informat Sci & Engn, Canberra, ACT 0200, Australia
[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia
[3] S China Univ Technol, Sch Automat, Guangzhou 510641, Guangdong, Peoples R China
[4] S China Univ Technol, Ctr Control & Optimizat, Guangzhou 510641, Guangdong, Peoples R China
基金
中国国家自然科学基金; 澳大利亚研究理事会;
关键词
Convergence; dissipativity/passivity; switching adaptive control; transient boundary; uncertain nonlinear systems; STABILIZATION; PASSIVITY; STABILITY;
D O I
10.1109/TAC.2010.2102490
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This technical note introduces a new dissipativity-based switching adaptive control strategy for uncertain systems. In this approach, the parametric uncertainties in systems are not considered on continuums but studied on finite discrete sets. Differently to multiple model supervisory control, dissipativity-based switching adaptive control needs no estimation errors for each switching decision. The switching logic is designed based on the relationship between dissipativity/passivity and adaptive systems, such that in the process of switching control, a transient boundary can be guaranteed by appropriately switching the parameter estimates. This makes it possible to apply the strategy for nonlinear systems modeled in local regions in the state space. We also discuss the implementation of the new idea to general dissipative systems and feedback passive systems. An example with simulation is employed to show the effectiveness of the approach.
引用
收藏
页码:660 / 665
页数:7
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