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Development of Motor Laminated Core Heat Treatment System by Secondary Current Heating Method

Research Project

Project/Area Number 17K06465
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Measurement engineering
Research InstitutionOita University

Principal Investigator

TSUCHIDA Yuji  大分大学, 理工学部, 准教授 (80284785)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords鉄損低減 / 磁気特性改善 / 熱処理 / 二次電流加熱 / 低損失モータ / 積層コア / 無方向性電磁鋼板 / モータ製造工程 / 計測工学 / 電気機器工学
Outline of Final Research Achievements

In this study, a new short-time heat treatment method named "secondary current heating method" is proposed, which can reduce iron loss in a much shorter time than the conventional large electric furnace. The specific results of this research are as follows. (1) We proposed the "secondary current heating method," developed an apparatus based on this method, clarified the electromagnetic characteristics of the apparatus and the temperature characteristics of the specimens, and demonstrated that it has sufficient performance for laminated cores of electrical steel sheets. (2) Conventional annealing requires a large electric furnace and takes about 12 hours. We applied the "secondary current heating method" to ring-shaped electrical steel sheet laminated cores and found that magnetic properties could be improved and iron loss reduced by about 10% with a short heat treatment time of 10 minutes.

Academic Significance and Societal Importance of the Research Achievements

本研究は,短時間の熱処理によってモータ積層コアの鉄損を低減するシステムの開発を目的とした。その結果,研究代表者らが考案した「二次電流加熱法」により,モータ積層コアを短時間で効率的に加熱することによって鉄損低減化を可能とし,既存のモータ製造工程にも容易に導入可能で,かつ運用も低コストな「熱処理システム」の開発を実現した。研究成果は,国内の総エネルギー消費量の約半分を占めているモータの低損失化・高効率化に適用することが可能であり,CO2などの温室効果ガス排出量の増加による地球温暖化対策に貢献することが期待できる。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (26 results)

All 2022 2021 2020 2019 2018 2017 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (22 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results) Remarks (2 results)

  • [Journal Article] Residual stress evaluation by Barkhausen signals with a magnetic field sensor for high efficiency electrical motors2018

    • Author(s)
      Tsuchida Yuji、Enokizono Masato
    • Journal Title

      AIP Advances

      Volume: 8 Issue: 4 Pages: 047608-047608

    • DOI

      10.1063/1.4994228

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reduction of Iron Loss on Laminated Electrical Steel Sheet Cores by Means of Secondary Current Heating Method2017

    • Author(s)
      Tsuchida Yuji、Yoshino Naoyuki、Enokizono Masato
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 53 Issue: 11 Pages: 1-4

    • DOI

      10.1109/tmag.2017.2705168

    • NAID

      120007150377

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 二次電流加熱法による積層モータコア鉄損の低減化2022

    • Author(s)
      矢野智大, 槌田雄二
    • Organizer
      第34回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 二次電流加熱の冷却時間制御による積層ステータコア鉄損の低減について2022

    • Author(s)
      矢野智大, 槌田雄二
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 実機モータ積層ステータコアの磁気特性評価についての検討2022

    • Author(s)
      永津新之介, 槌田雄二
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] モータ低損失化に向けた積層ステータコアの磁気特性評価についての検討2022

    • Author(s)
      槌田雄二, 永津新之介
    • Organizer
      第31回MAGDAコンファレンス in 鹿児島
    • Related Report
      2022 Annual Research Report
  • [Presentation] フレキシブルな冷却制御を加えた二次電流加熱法による積層ステータコア鉄損の低減2022

    • Author(s)
      槌田雄二, 矢野智大
    • Organizer
      第31回MAGDAコンファレンス in 鹿児島
    • Related Report
      2022 Annual Research Report
  • [Presentation] 無方向性電磁鋼板の磁気特性改善と残留応力評価2021

    • Author(s)
      槌田雄二
    • Organizer
      電気学会マグネティックス研究会資料
    • Related Report
      2021 Research-status Report
  • [Presentation] 電力用磁性材料の積層技術と積層コア磁気特性改善技術 -磁性材料の熱処理とその評価-2021

    • Author(s)
      槌田雄二
    • Organizer
      令和3年電気学会 基礎・材料・共通部門大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Improvement of Magnetic Properties and Reduction of Iron Loss on Laminated Electrical Steel Sheet Cores by Means of Secondary Current Heating Method2020

    • Author(s)
      Yuji Tsuchida
    • Organizer
      INTERMAG AMERICAS 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 電磁鋼板活用のための磁気特性評価2020

    • Author(s)
      大村遼平,槌田雄二
    • Organizer
      第32回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 高効率高パワー密度モータのための高性能化技術2019

    • Author(s)
      槌田雄二
    • Organizer
      第31回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Resunction thechniques of electrical steel sheets by secondary current heating for high efficiency motors2019

    • Author(s)
      Yuji Tsuchida
    • Organizer
      11th Japanese-Mediterranean Workshop Applied Electromagnetic Engineering for Magnetic, Superconducting, Multifuctional and Nanomaterials
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 無方向性電磁鋼板のX線応力評価2019

    • Author(s)
      槌田雄二,吉野直之,佐藤尊,榎園正人
    • Organizer
      電気学会マグネティックス研究会資料
    • Related Report
      2019 Research-status Report
  • [Presentation] 無方向性電磁鋼板のX線応力評価と磁気特性評価2019

    • Author(s)
      槌田雄二
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] Refunction Techniques of Electrical Steel Sheets for High Efficiency Motors2018

    • Author(s)
      Yuji Tsuchida
    • Organizer
      The 5th International Conference of Asian Union of Magnetics Societies (IcAUMS 2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] X線による無方向性電磁鋼板の応力評価と磁気特性2018

    • Author(s)
      槌田雄二
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] Hybrid computing based on measured vector magnetic properties of electrical steel sheets for high performance electromagnetic devices2018

    • Author(s)
      Yuji Tsuchida
    • Organizer
      15th International Workshop on 1&2 Dimensional Magnetic Measurement and Testing
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] X線残留応力とベクトル磁気特性による無方向性電磁鋼板の材料評価2018

    • Author(s)
      槌田雄二
    • Organizer
      第27回MAGDAコンファレンス in Katsushihka
    • Related Report
      2018 Research-status Report
  • [Presentation] 永久磁石モータステータコアの鉄損低減化2018

    • Author(s)
      槌田雄二,山下浩平,榎園正人
    • Organizer
      平成30年電気学会全国大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Reduction of Iron Loss on Laminated Electrical Steel Sheet Cores by Means of Secondary Current Heating Method2017

    • Author(s)
      Yuji Tsuchida, Naoyuki Yoshino and Masato Enokizono
    • Organizer
      INTERMAG Europe 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 二次電流加熱法による極薄電磁鋼板積層コアの鉄損低減化2017

    • Author(s)
      槌田雄二, 吉野直之, 佐藤尊, 榎園正人, 森祐司, 山崎一正
    • Organizer
      第29回「電磁力関連のダイナミクス」シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] 二次電流加熱法による電磁鋼板積層コアの鉄損低減化2017

    • Author(s)
      槌田雄二,吉野直之,佐藤尊,榎園正人
    • Organizer
      平成29年電気学会産業応用部門大会
    • Related Report
      2017 Research-status Report
  • [Presentation] モータ高効率化のための計測技術とその評価について2017

    • Author(s)
      槌田雄二,上野尚平,佐藤尊,若林大輔,岡茂八郎,祖田直也,榎園正人
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2017 Research-status Report
  • [Remarks] 槌田研究室のホームページ

    • URL

      https://tsuchida.eee.oita-u.ac.jp

    • Related Report
      2022 Annual Research Report
  • [Remarks] 槌田研究室

    • URL

      http://tsuchida.cc.oita-u.ac.jp

    • Related Report
      2019 Research-status Report 2018 Research-status Report 2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2024-01-30  

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