Robust H8 control for time-varying delay systems with frequency-dependent performance weights

Masanori Nagahara, Shingo Arai, Yutaka Uchimura

Research output: Contribution to journalArticle

4 Citations (Scopus)


This paper proposes a control design that enables us to shape the frequency-dependent performance using a modified Lyapunov-Krasovskii-based stabilizing condition. A stabilizing controller can be obtained by solving the condition formulated in Linear Matrix Inequality (LMI). The designed controller is evaluated using numerical simulations, and it is employed to realize the velocity control of a DC motor. Experimental results verified that the proposed controller achieved better performance with less conservativeness and that it is applicable to real plants.

Original languageEnglish
Pages (from-to)616-624
Number of pages9
JournalIEEJ Transactions on Industry Applications
Issue number6
Publication statusPublished - 2012 Oct 9



  • Frequency dependent performance weight
  • H8 control
  • Linear matrix inequality
  • Lyapunov-Krasovskii functional
  • Stabilization
  • Time-varying delay

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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