Stabilizing unstable periodic orbits with delayed feedback control in act-and-wait fashion

Ahmet Cetinkaya, Tomohisa Hayakawa, Mohd Amir Fikri bin Mohd Taib

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A delayed feedback control framework for stabilizing unstable periodic orbits of linear periodic time-varying systems is proposed. In this framework, act-and-wait approach is utilized for switching a delayed feedback controller on and off alternately at every integer multiples of the period of the system. By analyzing the monodromy matrix of the closed-loop system, we obtain conditions under which the closed-loop system's state converges towards a periodic solution under our proposed control law. We discuss the application of our results in stabilization of unstable periodic orbits of nonlinear systems and present numerical examples to illustrate the efficacy of our approach.

Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalSystems and Control Letters
Publication statusPublished - 2018 Mar
Externally publishedYes


  • Delayed feedback stabilization
  • Periodic systems
  • Stabilization of periodic orbits
  • Time-varying systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • General Computer Science
  • Mechanical Engineering
  • Electrical and Electronic Engineering


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