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Deepening improvement of mathematical approach to nonlinear robust control theory

Research Project

Project/Area Number 18K04204
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21040:Control and system engineering-related
Research InstitutionKobe University

Principal Investigator

Masubuchi Izumi  神戸大学, システム情報学研究科, 教授 (90283150)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords非線形システム / 安定性解析 / 時変システム / リアプノフ密度 / 非線形ロバスト制御 / 非線形ゲインスケジュールド制御 / 無限次元システム / 作用素不等式 / 時変非線形システムのロバスト制御 / 非線形システムのゲインスケジュールド制御 / 正不変性 / 逆定理 / 線形作用素不等式 / リアプノフ密度による安定性解析 / 離散値出力による分散制御 / 無限次元系のロバスト性解析
Outline of Final Research Achievements

The research achievements include the extension of stability analysis of time-invariant nonlinear systems via Lyapunov densities to time-varying and periodically time-varying systems with converse theorems. These results are applied to feedback controller synthesis for nonlinear time-varying systems.
Also the research contributes to the feedback controller synthesis of infinite-dimensional systems, by generalizing the method for finite-dimensional systems via linear matrix inequalities to infinite-dimensional systems via linear operator inequalities.

Academic Significance and Societal Importance of the Research Achievements

システム制御理論においては、有限次元線形システムを対象とした研究に関しては多くの有用な結果があり、また広く実応用も行われている。他方、非線形システムや無限次元システムに関しては、その扱いの難しさから、多くの未解決の課題が残されている。本研究の成果は、数理的アプローチにより、非線形システムや無限次元システムのフィードバック制御系設計の新たな方向性を切り開くものであり、これまで知られていなかった安定性の条件や無限次元系の制御系設計問題の定式化を示している。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (15 results)

All 2024 2023 2022 2021 2020 2019

All Journal Article (9 results) (of which Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] An Extended Lyapunov-Density Condition for Nonlinear Time-Varying Systems2023

    • Author(s)
      Masubuchi Izumi
    • Journal Title

      Proceedings of the 22nd IFAC World Congress

      Volume: - Pages: 4889-4894

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A multi-objective state-feedback synthesis for infinite-dimensional systems based on linear operator inequalities in the conjugate space2022

    • Author(s)
      Izumi Masubuchi
    • Journal Title

      Proceedings of the 12th Asian Control Conference

      Volume: - Pages: 1256-1261

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] On gain-scheduled control of nonlinear systems: synthesis via Lyapunov densities2022

    • Author(s)
      Izumi Masubuchi
    • Journal Title

      Proceedings of the SICE Annual Conference 2022

      Volume: - Pages: 345-346

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] A multi-objective state-feedback synthesis for infinite-dimensional systems based on linear operator inequalities in the conjugate space2022

    • Author(s)
      Izumi Masubuchi
    • Journal Title

      Proceedings of the 13th Asian Control Confeence, to appear

      Volume: -

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] On robust feedback control of nonlinear systems with time-varying uncertainties via Lyapunov densities2021

    • Author(s)
      Izumi Masubuchi
    • Journal Title

      Proceedings of the SICE Annual Conference 2021

      Volume: - Pages: 1004-1006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 共役空間における線形作用素不等式を用いた無限次元系の状態フィードバック系設計2021

    • Author(s)
      大薗隼人,増淵泉
    • Journal Title

      第65回システム制御情報学会研究発表講演会

      Volume: - Pages: 923-929

    • NAID

      40022588086

    • Related Report
      2021 Research-status Report
  • [Journal Article] Lyapunov Density Criteria for Time-Varying and Periodically Time-Varying Nonlinear Systems with Converse Results2021

    • Author(s)
      Masubuchi Izumi、Kikuchi Takahiro
    • Journal Title

      SIAM Journal on Control and Optimization

      Volume: 59 Issue: 1 Pages: 223-241

    • DOI

      10.1137/19m1291479

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Memory Gain-Scheduled Controllers for Discrete-Time LPV Systems2020

    • Author(s)
      Masubuchi Izumi、Yabuki Yuta
    • Journal Title

      SICE Journal of Control, Measurement, and System Integration

      Volume: 13 Issue: 5 Pages: 249-255

    • DOI

      10.9746/jcmsi.13.249

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Operator inequality approach for state-feedback stabilization of infinite-dimensional systems: synthesis via dual of input-to-state operator2020

    • Author(s)
      Izumi Masubuchi
    • Journal Title

      Proceedings of the 21st IFAC World Congress

      Volume: - Pages: 7788-7791

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 時変の不確かさを持つ非線形システムの解の概収束性を保証するリアプノフ密度の条件の改善2024

    • Author(s)
      増淵 泉
    • Organizer
      第11回計測自動制御学会制御部門マルチシンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 共役空間における線形作用素不等式を用いた無限次元系の状態フィードバック系設計2021

    • Author(s)
      大薗 隼人, 増淵 泉
    • Organizer
      第65回システム制御情報学会研究発表講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 作用素不等式による無限次元系の安定化状態フィードバック制御の設計について2020

    • Author(s)
      増淵泉
    • Organizer
      第64回システム制御情報学会研究発表講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Almost-everywhere convergence analysis for periodically time-varying nonlinear systems via Lyapunov densities2019

    • Author(s)
      Izumi Masubuchi
    • Organizer
      SICE Annual Conference 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] リアプノフ密度による非線形システムの指数収束性の新たな解析法2019

    • Author(s)
      菊池貴大,増淵泉
    • Organizer
      平成30年度計測自動制御学会関西支部・システム制御情報学会 若手研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] リアプノフ密度による時変非線形システムの収束性の解析について2019

    • Author(s)
      増淵泉
    • Organizer
      第6回計測自動制御学会制御部門マルチシンポジウム
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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