Output integral sliding mode for min-max optimization of multi-plant linear uncertain systems

Francisco Javier Bejarano, Leonid M. Fridman, Alexander S. Poznyak

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

We consider the application of a min-max optimal control based on the LQ-index for a set of systems where only the output information is available. Here every system is affected by matched uncertainties, and we propose to use an output integral sliding mode to compensate the matched uncertainties right after the beginning of the process. For the case when the extended system is free of invariant zeros, a hierarchical sliding mode observer is applied. The error of realization of the proposed control algorithm is estimated in terms of the sampling step and actuator time constant. An example illustrates the suggested method of design.

Original languageEnglish
Article number5286265
Pages (from-to)2611-2620
Number of pages10
JournalIEEE Transactions on Automatic Control
Volume54
Issue number11
DOIs
StatePublished - Nov 2009
Externally publishedYes

Keywords

  • Hierarchical sliding mode observer (HSMO)
  • Output integral sliding mode (OISM)

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