H Control of Stochastic Discrete-Time Switched Systems with Dwell

Eli Gershon, Uri Shaked

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Linear discrete-time switched stochastic systems are considered, where the issues of mean square stability, stochastic l2 -gain, and state-feedback control design problems are treated and solved. Solutions are obtained for both: nominal and polytopic uncertain systems. In all these problems, the switching obeys a dwell time constraint. In our solution, to each subsystem of the switched system, a Lyapunov function is assigned that is nonincreasing at the switching instants. The latter function is allowed to vary piecewise linearly, starting at the end of the previous switch instant, and it becomes time invariant as the dwell proceeds. In order to guarantee asymptotic stability, we require the Lyapunov function to be negative between consecutive switchings. We thus obtain a linear matrix inequality condition. Based on the solution of the stochastic l2-gain problem, we derive a solution to the state-feedback control design, where we treat a variety of special cases. Being affine in the system matrices, all the above solutions are extended to the uncertain polytopic case. The proposed theory is demonstrated by a flight control example.

Original languageEnglish
Title of host publicationLecture Notes in Control and Information Sciences
PublisherSpringer Verlag
Pages205-222
Number of pages18
DOIs
StatePublished - 2019

Publication series

NameLecture Notes in Control and Information Sciences
Volume481
ISSN (Print)0170-8643
ISSN (Electronic)1610-7411

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