Numerical computation of H∞ optimal controllers for time delay systems using YALTA
Date
2016Source Title
IFAC-PapersOnLine
Print ISSN
2405-8963
Publisher
Elsevier B.V.
Volume
49
Issue
10
Pages
182 - 187
Language
English
Type
ArticleItem Usage Stats
188
views
views
166
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downloads
Abstract
Numerical computation of H∞ controllers for time delay systems has been a challenge since 1980s. Even though significant techniques are developed to obtain direct optimal controllers, application of these methods may require manual computation depending on the plant. In this paper, an alternative computational technique is proposed for direct optimal controllers originally obtained by Toker and Özbay (1995). The new controller expression contains finite dimensional transfer functions and an infinite dimensional term, which is stable. Thus it is suitable for finite dimensional approximations and practical non-fragile implementations. In this method, in order to eliminate manual computation of the plant factorization for neutral and retarded delay systems YALTA (a tool developed at INRIA) is used. The new controller computation is implemented in Matlab, and it is illustrated on an example. © 2016
Keywords
H∞ controllerInfinite dimensional systems
Neutral and retarded systems
Robust control
Time-delay systems
Closed loop systems
Controllers
Delay control systems
Robust control
Computational technique
Finite dimensional approximation
Infinite dimensional
Numerical computations
Optimal controller
Retarded system
Time delay
Permalink
http://hdl.handle.net/11693/36829Published Version (Please cite this version)
http://dx.doi.org/10.1016/j.ifacol.2016.07.523Collections
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