Robustness of perturbed large-scale systems with local constant state feedback

Wen June Wang, Cheng Fa Cheng

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


The robustness problem of perturbed large-scale systems is considered. The nominal large-scale system is stabilized by a local constant state feedback ui(t) = kixi(t) and the local optimal control law ui(t) = − Ri−1iTPixi(t), respectively. In the above two cases, bounds are obtained for an allowable non-linear time-invariant (or time-varying) perturbation such that the resulting closed-loop large-scale system remains stable. The special case of a linear perturbation is also treated here.

Original languageEnglish
Pages (from-to)373-384
Number of pages12
JournalInternational Journal of Control
Issue number1
StatePublished - Jul 1989


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