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Stability overlay for adaptive control laws

delete2011-05-01
delete14
PRE
AI
P
Paulo Rosa *
J
Jeff S. Shamma
C
Carlos Silvestre
M
Michael Athans
DOI:10.1016/j.automatica.2011.01.068delete
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摘要

摘要

En 中文
This paper proposes an architecture referred to as Stability Overlay (SO) for adaptive control of a class of nonlinear time-varying plants. The SO can be implemented in parallel with a wide range of performance-based adaptive control laws, i.e., adaptive control laws that seek to improve closed-loop performance, but may be susceptible to instability in the presence of unaccounted model uncertainty. In this architecture, the performance-based adaptive control law designates candidate controllers based on performance considerations, while the SO supervises this selection based upon online robust stability considerations. A particular selection of a performance-based adaptive control law is not specified. Rather, this selection can be from a wide range of adaptive control schemes. This paper provides stability proofs for the SO architecture and presents a simulation that illustrates the applicability of the proposed method. (C) 2011 Elsevier Ltd. All rights reserved.
Keyword:
Robust adaptive control
Time-varying systems
Robust stability
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期刊

Automatica 封面图
Automatica
IF:
5.9
论文数:
1.2W
被引数:
5.2W

机构

U
universidade de lisboa
学者数:
3.4W
论文数: 3.1W
被引数: 29
U
universidade de coimbra
学者数:
1.9W
论文数: 1.6W
被引数: 16
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