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Development of a half-wave rectified variable field flux motor for enhancing the environmental friendliness of small battery-powered electric boats

Research Project

Project/Area Number 21H01315
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21010:Power engineering-related
Research InstitutionNagasaki University

Principal Investigator

Abe Takashi  長崎大学, 工学研究科, 教授 (30222649)

Co-Investigator(Kenkyū-buntansha) 浜崎 真一  長崎大学, 工学研究科, 准教授 (80363472)
横井 裕一  長崎大学, 工学研究科, 准教授 (80610469)
大道 哲二  長崎大学, 工学研究科, 助教 (50739175)
大友 佳嗣  長崎大学, 工学研究科, 助教 (60964442)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Keywords可変界磁モータ / 電池推進船 / 同期モータ / ダイオード整流 / ブラシ無し自己励磁 / ブラシなし自己励磁
Outline of Research at the Start

自動車業界における環境対応車だけでなく,航空機や建機,船舶の電動化が進んでいる。それらには,97%を超える最高効率を理由に永久磁石モータが利用されているが,最高効率点を外れた運転が継続すると,平均効率の低下につながる。
本申請では,研究代表者が提案する半波整流可変界磁モータを小型電池推進船へ適用する。本モータは,永久磁石が不要で,固定子電流により自己励磁される界磁磁束を変更し,様々な運転場面にて最高効率点を移動可能となるため,平均効率が向上し,燃料費とCO2排出量の削減を可能とする,モータドライブの設計と制御法を確立する。また,シミュレーションを用いて電池推進船に適用した特性検証を実施する。

Outline of Final Research Achievements

The objective of this research is to incorporate a half-wave rectified variable field flux motor into the power source of a small battery-powered electric boat. The practicality of the variable field flux motor was confirmed by a principal investigator. By controlling the field flux under various operating conditions, this motor is expected to reduce fuel costs and CO2 emissions by shifting the maximum efficiency point.
During this period, the research team focused on creating a motor design that would enhance efficiency and minimize torque ripple across both low-speed, low-torque, and high-speed, high-torque drive ranges. To verify the results, a prototype was constructed and validated. A variable field flux control method that can maintain high efficiency depending on boat speed and load was established, and this control method was demonstrated on the prototype. Furthermore, the energy consumption of a small battery-powered electric boat was verified using simulations.

Academic Significance and Societal Importance of the Research Achievements

SDGsに係る取り組みとして,モータを利用した電動力応用駆動システムの高性能化がある。養殖場や離島沖の浮体式発電システムへの人と物の往来に必要となる小型船舶には,排ガスを海水中に排出する従来のエンジン船舶に変わり,モータで駆動する環境に配慮した電池推進船の利用が必要となる。本研究は研究代表者が提案し実用性を検証してきた可変界磁モータを小型電池推進船の駆動源に適用することを目的としており,その成果は,再生可能エネルギーの導入の更なる加速,地産地消型のシステムの確立,地域に適したエネルギーの有効利用による特産種の養殖,沿岸環境の保全に寄与することで,持続可能な社会の実現に貢献できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results) Presentation (9 results)

  • [Journal Article] Design and Improvement of Torque Characteristics of Half-Wave Rectified Variable Field Flux Motor with Axial Gap Structure2024

    • Author(s)
      矢狹健太郎, 阿部貴志,大友佳嗣,古賀誉大,下原祐全
    • Journal Title

      IEEJ Transactions on Industry Applications

      Volume: 144 Issue: 5 Pages: 381-390

    • DOI

      10.1541/ieejias.144.381

    • ISSN
      0913-6339, 1348-8163
    • Year and Date
      2024-05-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surrogate Modeling and Application of Half-Wave Rectified Brushless Synchronous Motor for Model-Based Design2024

    • Author(s)
      Koga Takahiro、Abe Takashi、Otomo Yoshitsugu、Yamamoto Masaki、Rosu Marius
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 13 Issue: 1 Pages: 81-90

    • DOI

      10.1541/ieejjia.23005913

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2024-01-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Reduced Order Modeling of Half-Wave Rectified Brushless Synchronous Motor for Model-Based Design2023

    • Author(s)
      Koga Takahiro、Abe Takashi、Otomo Yoshitsugu、Yamamoto Masaki、Rosu Marius
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 12 Issue: 4 Pages: 826-834

    • DOI

      10.1541/ieejjia.22011214

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2023-07-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Novel Digital Control Method with Pulse Width Modulation for Half-wave Rectified Brushless Synchronous Motors2022

    • Author(s)
      Tetsuji Daido, Shinichi Hamasaki, Takashi Abe
    • Journal Title

      IEEJ Journal of Industry Applications

      Volume: 11 Issue: 1 Pages: 138-147

    • DOI

      10.1541/ieejjia.21006123

    • NAID

      130008139451

    • ISSN
      2187-1094, 2187-1108
    • Year and Date
      2022-01-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study on Torque Performance Implrovement of Half-Wave Rectified Variable Field Flux Motor with Axial Gap Structure2022

    • Author(s)
      Yuzen Shimohara, Takashi Abe, Yoshitsugu Otomo, Takahiro Koga
    • Journal Title

      Proc. of 2022 International Conference on Electrical Machines and Systems

      Volume: 1570811976 Pages: 1-6

    • DOI

      10.1109/icems56177.2022.9983012

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Study on Torque Ripple Reduction of Half-Wave Rectified Variable Field Flux Motor2022

    • Author(s)
      Shota Hoyama, Takashi Abe, Yoshitsugu Otomo
    • Journal Title

      Proc. of 2022 International Conference on Electrical Machines and Systems

      Volume: 1570811977 Pages: 1-6

    • DOI

      10.1109/icems56177.2022.9983385

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Torque Ripple Reduction by injecting q-axis Suppression Current for Half-Wave Rectified Brushless Synchronous Motor2022

    • Author(s)
      Kohei Kanaida, Tetsuji Daido, Shin-ichi Hamasaki, Takashi Abe
    • Journal Title

      Proc. of 2022 International Conference on Electrical Machines and Systems

      Volume: 1570806778 Pages: 1-6

    • DOI

      10.1109/icems56177.2022.9983270

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Study on Higher Efficiency of Half-Wave Rectified Variable Field Flux Motor for Automobile Applications2021

    • Author(s)
      Yuma Inakazu, Takashi Abe
    • Journal Title

      Proc. of The 24th International Conference on Electrical Machines and Systems

      Volume: No.I2-0736 Pages: 1395-1399

    • DOI

      10.23919/icems52562.2021.9634457

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Half-Wave Rectified Variable Field Flux Motor With Axial Gap Structure2021

    • Author(s)
      Yuzen Shimohara, Takashi Abe, Takahiro Koga
    • Journal Title

      Proc. of The 24th International Conference on Electrical Machines and Systems

      Volume: No. I2-0903 Pages: 1400-1404

    • DOI

      10.23919/icems52562.2021.9634551

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Influence of the Modulation Function for Excitation Current on the Characteristics in Half-Wave Rectified Variable Field Flux Motor2021

    • Author(s)
      Masaki Yamamoto, Takashi Abe
    • Journal Title

      Proc. of The 24th International Conference on Electrical Machines and Systems

      Volume: No. I2-0908 Pages: 1405-1409

    • DOI

      10.23919/icems52562.2021.9634529

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] システムシミュレーション活用に向けた可変界磁同期モータの縮退モデリング技術2023

    • Author(s)
      古賀誉大,阿部貴志,大友佳嗣
    • Organizer
      2023年電気学会産業応用部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 広い高効率範囲をもつ半波整流可変界磁モータの設計2023

    • Author(s)
      穗山翔大,城島英彰,阿部貴志,大友佳嗣,古賀誉大
    • Organizer
      2023年電気学会産業応用部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] キシャルギャップ構造半波整流可変界磁モータの設計とトルク特性改善2023

    • Author(s)
      矢狹健太郎,阿部貴志,大友佳嗣,古賀誉大,下原祐全
    • Organizer
      2023年電気学会産業応用部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 半波整流可変界磁モータにおけるインバータ印加直流電圧が特性に与える影響2023

    • Author(s)
      中村有里,阿部貴志,大友佳嗣
    • Organizer
      2023年電気学会産業応用部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 半波整流可変界磁モータの搭載を想定した電池推進船システムの検討について2023

    • Author(s)
      牧大智,阿部貴志,大友佳嗣
    • Organizer
      2023年電気学会産業応用部門大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 半波整流可変界磁モータの基礎出力特性2022

    • Author(s)
      山本真生,中村有里,阿部貴志,大友佳嗣
    • Organizer
      2022年電気学会産業応用部門大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 気自動車駆動用半波整流可変界磁モータの効率を向上するモータ定数について2021

    • Author(s)
      稲員佑真,阿部貴志
    • Organizer
      2021年電気学会産業応用部門大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 半波整流可変界磁モータの励磁電流によるトルク脈動低減に関する一検討2021

    • Author(s)
      前田広大,横井裕一,阿部貴志,樋口剛
    • Organizer
      2021年電気学会産業応用部門大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 半波整流可変界磁同期ブラシレスモータのトルク脈動低減制御2021

    • Author(s)
      金井田浩平,大道哲二,浜崎真一,阿部貴志
    • Organizer
      2021年電気学会産業応用部門大会
    • Related Report
      2021 Annual Research Report

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

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