Stability robustness analysis of digital control systems in state-space models

Yau Tarng Juangh, Te Son Kuo, Chen Fa Hsu

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

The stability robustness of discrete linear time-invariant systems in state-space models is analysed. Based on a root-locus approach and from the stable-eigenvalue viewpoint, fundamental criteria for testing the stability robustness of autonomous systems are derived and applied to the robustness analysis of multivariable feedback systems. Both the norm bound and the element bounds for the allowed perturbations are obtained. A stability robustness index is defined which is useful both for the analysis and synthesis of control systems.

Original languageEnglish
Pages (from-to)1547-1556
Number of pages10
JournalInternational Journal of Control
Volume46
Issue number5
DOIs
StatePublished - Nov 1987

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