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Riccati Design for Synchronization of Discrete-Time Systems

  • Frank L. Lewis*
  • , Hongwei Zhang
  • , Kristian Hengster-Movric
  • , Abhijit Das
  • *Corresponding author for this work
  • University of Texas at Arlington
  • Southwest Jiaotong University
  • Danfoss AS

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

Abstract

In this chapter, design methods are given for synchronization control of discrete-time multi-agent systems on directed communication graphs. The graph is assumed to have fixed topology and contain a spanning tree. The graph properties complicate the design of synchronization controllers due to the interplay between the eigenvalues of the graph Laplacian matrix and the required stabilizing gains. A method is given that decouples the design of the synchronizing feedback gains from the detailed graph properties. It is based on computation of the agent feedback gains using a local Riccati equation design. Conditions are given for synchronization based on the relation of the graph eigenvalues to a bounded circular region in the complex plane that depends on the agent dynamics and the Riccati solution. The notion of ‘synchronization region’ is used. Convergence to consensus and robustness properties are investigated. This chapter also investigates the design of distributed observers for identical agents using a local Riccati design. A cooperative observer design guaranteeing convergence of the estimates of all agents to their actual states is proposed. The notion of a convergence region for distributed observers on graphs is introduced.

Original languageEnglish
Title of host publicationCommunications and Control Engineering
PublisherSpringer International Publishing
Pages107-140
Number of pages34
Edition9781447155737
DOIs
StatePublished - 2014
Externally publishedYes

Publication series

NameCommunications and Control Engineering
Number9781447155737
ISSN (Print)0178-5354
ISSN (Electronic)2197-7119

Keywords

  • Entropy

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