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Connecting System Identification and Machine Learning for Achieving Both Performance and Generalization Capability in Iterative Learning Control

Research Project

Project/Area Number 21K14179
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21040:Control and system engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

Ohnishi Wataru  東京大学, 大学院工学系研究科(工学部), 准教授 (60823888)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Discontinued (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsフィードバック制御 / フィードフォワード制御 / 学習制御 / 周波数応答データ / 凸最適化 / 非因果的制御入力 / システム同定 / 機械学習 / 精密位置決め制御 / データ駆動最適化 / 繰り返し学習制御
Outline of Research at the Start

繰り返し学習制御は,半導体露光装置,プリンタ,産業用ロボットといった,精密制御が必要な応用先において幅広く用いられている。この制御法は,過去の位置決め誤差の情報を用いて繰り返し試行を行うことで,極めて高い位置決め精度を達成することができる。ところが,繰り返し学習制御は,指令値が変わると再度学習をしなおす必要があり,タスク柔軟性に欠ける (汎化性能がない) という課題がある。そこで本研究では,基底関数型繰り返し学習制御の拡張として,非線形基底関数繰り返し学習制御を提案し,指令値変動への汎化性能を持たせることを目的とする。

Outline of Final Research Achievements

To improve the performance of positioning control systems, we have worked on (1) high-bandwidth feedback controllers, (2) high-precision feedforward control, and (3) Iterative Learning Control (ILC), in an integrated manner. In (1), frequency response data direct-drive disturbance observer design, (2) precise output control of boost converters using non-causal control inputs, and (3) a state-tracking ILC proposal and ILC integration with machine learning to improve task flexibility. Since it became clear throughout the research period that non-causal control input is very effective for the trajectory tracking control problem, we will develop the plan in the Grant-in-Aid for Scientific Research(B) by applying in the final year of the project.

Academic Significance and Societal Importance of the Research Achievements

(1)フィードバック制御器のさらなる高帯域化,(2)モデルを正確に捉えたフィードフォワード制御,(3) ILC,を統合的に取り組み,目標値追従性能を向上させる研究を行った。
システム同定によって得られた周波数特性データを,(1)-(3)の制御系設計とどう連携させるか,という点では,周波数特性直接駆動で外乱オブザーバやILCを設計する枠組みを提示したことは,設計コストの低減に役立つ成果である。システム同定,ILC,機械学習を連携させる点では,機械学習における過学習をいかに抑止するかが課題であることが示されたと同時に,非因果的な制御入力が有効であることが示された。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Research-status Report
  • Research Products

    (35 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (25 results) (of which Int'l Joint Research: 12 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] Eindhoven University of Technology(オランダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Eindhoven University of Technology(オランダ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Linear Matrix Inequality Based Data-driven Disturbance Observer Design: Application to a Non-Minimum Phase Motion Stage2022

    • Author(s)
      Xiaoke Wang, Wataru Ohnishi, Takafumi Koseki
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 11 Issue: 2 Pages: 334-340

    • DOI

      10.1541/ieejjia.21005770

    • NAID

      130008166420

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2022-03-01
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of Dead Zone Compensation by Mass-Flow-Rate Twin-Drive System with Anti-Windup for Pressure Control System2022

    • Author(s)
      Yui Shirato, Wataru Ohnishi, Hiroshi Fujimoto, Yoichi Hori, Koichi, Sakata, Atsushi Hara
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 11 Issue: 2 Pages: 299-307

    • DOI

      10.1541/ieejjia.21005641

    • NAID

      130008166411

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2022-03-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] State-Tracking Iterative Learning Control in Frequency Domain Design for Improved Intersample Behavior2022

    • Author(s)
      Wataru Ohnishi, Nard Strijbosch, Tom Oomen
    • Journal Title

      International Journal of Robust and Nonlinear Control

      Volume: 33 Issue: 7 Pages: 4009-4027

    • DOI

      10.1002/rnc.6511

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Proof-of-Concept of a Fuse-Semiconductor Hybrid Circuit Breaker with a Fast Fuse Exchanger2022

    • Author(s)
      Wataru Ohnishi, Yuki Inada, Shungo Zen, Reon Sasaki, Yasuhiro Takada, Yuta Miyaoka, Kosuke Tsukamoto, Yasushi Yamano
    • Journal Title

      IEEE Transactions on Power Delivery

      Volume: 38 Issue: 2 Pages: 937-946

    • DOI

      10.1109/tpwrd.2022.3202821

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Frequency Response Data-based Disturbance Observer Design: With Application to a Non-minimum Phase Motion Stage2022

    • Author(s)
      Xiaoke Wang, Wataru Ohnishi, Takafumi Koseki
    • Journal Title

      IEEE/ASME Transactions on Mechatronics

      Volume: 27 Issue: 6 Pages: 5318-5326

    • DOI

      10.1109/tmech.2022.3176138

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Frequency response data-based peak filter design applied to MIMO large-scale high-precision scan stage2022

    • Author(s)
      Masahiro Mae, Wataru Ohnishi, Hiroshi Fujimoto, Koichi Sakata, Atsushi Hara
    • Journal Title

      Mechatronics

      Volume: 83 Pages: 102733-102733

    • DOI

      10.1016/j.mechatronics.2021.102733

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dead Zone Compensation Method by Mass Flow Rate Twin Drive System for a Pneumatic Driving System2021

    • Author(s)
      白戸柚衣, 大西亘, 藤本博志, 堀洋一, 坂田晃一, 原篤史
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 87 Issue: 9 Pages: 759-764

    • DOI

      10.2493/jjspe.87.759

    • NAID

      130008084588

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2021-09-05
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Review on Multirate Feedforward Control with Mode Decomposition for Intersample Performance in Multi-Modal Motion Systems2023

    • Author(s)
      Masahiro Mae, Wataru Ohnishi, Hiroshi Fujimoto
    • Organizer
      9th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高電圧用限流ハイブリッド直流遮断器の開発2023

    • Author(s)
      清水涼雅, 全俊豪, 稲田優貴, 大西亘, 中野裕介, 兒玉直人, 山納康
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/静止器/開閉保護合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 摩擦変動を高速模擬する小型軌条輪装置を用いた鉄道車両制御技術試験のための模擬走行環境の提案2023

    • Author(s)
      上野爽, 大西亘, 古関隆章
    • Organizer
      電気学会 交通・電気鉄道/リニアドライブ 合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Feedback Control Design for a 3-DOF Magnetic Levitation System based on I-PD Closed-Loop System Identification2023

    • Author(s)
      Yang Yueying, 大西亘, 古関隆章
    • Organizer
      電気学会 交通・電気鉄道/リニアドライブ 合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 車上センサフュージョンによる列車位置検知に基づく地上子仮想化の提案2023

    • Author(s)
      長井健介, 大西亘, 古関隆章
    • Organizer
      電気学会 交通・電気鉄道/リニアドライブ 合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Feedforward with acceleration and snap using sampled-data differentiator for a multi-modal motion system2022

    • Author(s)
      Masahiro Mae, Max van Haren, Wataru Ohnishi, Tom Oomen, Hiroshi Fujimoto
    • Organizer
      Modeling, Estimation, and Control Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-causal state estimation for improved state tracking in iterative learning control2022

    • Author(s)
      Kentaro Tsurumoto, Wataru Ohnishi, Takafumi Koseki, Nard Strijbosch, Tom Oomen
    • Organizer
      Modeling, Estimation, and Control Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design of loop shaping filters based on convex optimization guaranteeing robust performance2022

    • Author(s)
      Xiaoke Wang, Wataru Ohnishi, Takenori Atsumi
    • Organizer
      IEEE/ASME International Conference on Advanced Intelligent Mechatronics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] リニアモータにおける状態変数依存外乱のガウス過程を用いた補償実験2022

    • Author(s)
      佐々木怜音, 大西亘, 古関隆章
    • Organizer
      電気学会メカトロニクス制御研究会資料(電気学会研究会資料)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Operation timing considerations of Hybrid DCCB based on data analysis of current-limiting-status inside fuse2022

    • Author(s)
      Yecheng Liu, Reon Sasaki, Wataru Ohnishi, Takafumi Koseki, Kosuke Tukamoto, Yasusi Yamano, Yuki Inada, Shungo Zen
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/開閉保護/高電圧合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 凸最適化とRBode plotを用いた最適ループ整形法の提案と2段アクチュエータHDDベンチマーク問題への適用2022

    • Author(s)
      Xiaoke Wang, Wataru Ohnishi, Takenori Atsumi
    • Organizer
      電気学会メカトロニクス制御研究会資料(電気学会研究会資料)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2段アクチュエータHDDベンチマーク問題における外乱抑圧のための周波数応答データ駆動型共振フィルタ設計2022

    • Author(s)
      前匡鴻, 大西亘, 藤本博志
    • Organizer
      電気学会メカトロニクス制御研究会資料(電気学会研究会資料)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 基底関数と周波数領域設計を組み合わせたタスク柔軟で高精度なILCの基礎検討2022

    • Author(s)
      弦本健太郎, 大西亘, 古関隆章
    • Organizer
      電気学会メカトロニクス制御研究会資料(電気学会研究会資料)
    • Related Report
      2022 Annual Research Report
  • [Presentation] ロバスト性能を満たす高次制御器のRCBode plotの支援に基づくデータ駆動設計~HDDベンチマーク問題への適用~2022

    • Author(s)
      Xiaoke Wang, Wataru Ohnishi, Takenori Atsumi
    • Organizer
      電気学会産業応用部門大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Copper Contact Collaborating with SiC MOSFET and Drive Circuit Design for Hybrid DCCB in MVDC System2022

    • Author(s)
      Wenchao Yuan, Shungo Zen, Nozomi Takeuchi, Wataru Ohnishi, Yuki Inada
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/静止器/開閉保護合同研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Improved state estimation by non-causal state observer2022

    • Author(s)
      Kentaro Tsurumoto, Wataru Ohnishi, Takafumi Koseki, Nard Strijbosch, Tom Oomen
    • Organizer
      8th IEEJ international workshop on Sensing, Actuation, Motion Control, and Optimization
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Frequency Response Data-based Multiple Peak Filter Design Applied to High-Precision Stage in Translation and Pitching2022

    • Author(s)
      Masahiro Mae, Wataru Ohnishi, Hiroshi Fujimoto, Koichi Sakata
    • Organizer
      IEEE 17th International Conference on Advanced Motion Control
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヒューズ半導体ハイブリッド遮断器におけるリニアモータを用いた高速ヒューズ交換の基礎検討2022

    • Author(s)
      佐々木怜音,大西亘,高田康宏,古関隆章,全俊豪,稲田優貴
    • Organizer
      電気学会研究会資料(交通・電気鉄道/リニアドライブ合同研究会)
    • Related Report
      2021 Research-status Report
  • [Presentation] Study of Unbalance Reduction in 25kV AC Traction System by Different Transformer Configurations2021

    • Author(s)
      Varsha Singh, Wataru Ohnishi, Takafumi Koseki
    • Organizer
      10th IEEE PES International Innovative Smart Grid Technologies Conference - Asia
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Adhesion estimation-based heuristic approach for wheel slip control in electric locomotives2021

    • Author(s)
      Shikha Saini, Wataru Ohnishi, Takafumi Koseki
    • Organizer
      STECH2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interaction of Traction Substations in Phase Shift Technique Based Traction Power Supply Network2021

    • Author(s)
      Varsha Singh, Wataru Ohnishi, Takafumi Koseki
    • Organizer
      4th Asia Conference on Energy and Electrical Engineering
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Running trajectory optimization to mitigate delay propagation at highly frequent train service based on continuous train position acquisition2021

    • Author(s)
      Keisuke Sakai, Wataru Ohnishi, Takafumi Koseki, Kazuhiro Tanaka, Shunji Morita, Katsutoshi Tokuhara, Koki Kasai
    • Organizer
      30th International Symposium on Industrial Electronics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Compensation of time and amplitude discretization by applying feedback modulator for motion control of electric railway2021

    • Author(s)
      Shota Miyoshi, Wataru Ohnishi, Takafumi Koseki
    • Organizer
      30th International Symposium on Industrial Electronics
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Data-based simultaneous design of plant model and robustness filter in disturbance observer2021

    • Author(s)
      XiaoKe Wang, Wataru Ohnishi and Takafumi Koseki
    • Organizer
      American Control Conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高速再閉路可能なヒューズ半導体ハイブリッド遮断器の実証2021

    • Author(s)
      大西亘, 稲田優貴, 全俊豪, 佐々木怜音, 髙田康宏, 宮岡優太, 塚本幸佑, 山納康
    • Organizer
      電気学会研究会資料(放電・プラズマ・パルスパワー/開閉保護/高電圧合同研究会)
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 昇圧コンバータ2022

    • Inventor(s)
      大西 亘,三好 正太,古関 隆章
    • Industrial Property Rights Holder
      大西 亘,三好 正太,古関 隆章
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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