Numerical computation of H∞ optimal controllers for time delay systems using YALTA
Yeğin, M. O.
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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
Infinite dimensional systems
Neutral and retarded systems
Closed loop systems
Delay control systems
Finite dimensional approximation
Published Version (Please cite this version)http://dx.doi.org/10.1016/j.ifacol.2016.07.523
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