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A new proposal of magnetic spiral arc method for high speed DC interruption

Research Project

Project/Area Number 18K13746
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21010:Power engineering-related
Research InstitutionThe University of Shiga Prefecture

Principal Investigator

Hirayama Satoshi  滋賀県立大学, 工学部, 講師 (70759274)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords直流遮断 / 電磁流体解析 / 外部印加磁場 / アーク放電 / ガス遮断器
Outline of Final Research Achievements

The present study proposed a magnetic spiral-arc method as a new DC interruption technique, and examined the effectiveness of the proposed method by using three-dimensional unsteady magnetohydrodynamic analysis. Numerical results demonstrated that the current zero point is quickly generated by applying an external magnetic field, and the effectiveness of the magnetic spiral-arc method was shown. In addition, the externally applied magnetic flux density and its distribution required for the formation of spiral-arc were clarified.

Academic Significance and Societal Importance of the Research Achievements

本研究は,ネットワーク型直流送電システムの実現に向けた技術課題の一つである高速度直流遮断技術に対して,外部印加磁場を利用した新たな直流遮断方式として磁気スパイラルアーク方式を提案しており,申請者の独自のアイディアに基づくものである。さらに,提案方式の有効性を示せたことで,新たな機械アーク方式直流遮断器の開発に対して大きなインパクトを与えるものと考えている。また,強い外部磁場が印加された遮断器内部のアーク放電の3次元非定常挙動を解析した研究はほとんど報告されておらず,アーク放電の消弧現象の理解という学術的な観点からも大いに意義のある成果であると考えられる。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Influence of externally applied magnetic field on arc plasmas in a passive resonance direct current circuit breaker2019

    • Author(s)
      Satoshi Hirayama, Yoshitaka Inui
    • Journal Title

      Journal of International Council on Electrical Engineering

      Volume: 印刷中

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 電流遮断時における配線用遮断器のアーク温度減少過程に関する数値解析2020

    • Author(s)
      金井 豊,平山智士,乾 義尚,加藤裕明
    • Organizer
      令和2年電気学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ラバルノズル内のロータリアークに与える外部印加磁束密度の影響2020

    • Author(s)
      山岡智裕,平山智士,乾 義尚
    • Organizer
      令和2年電気学会全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Numerical Analysis of Unsteady Arc Plasma Behavior in Low Voltage Circuit Breaker2019

    • Author(s)
      S. Hirayama, Y. Kanai, Y. Inui, H. Kato
    • Organizer
      The International Council on Electrical Engineering Conference 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 直交格子Cut-Cell法を用いたラバルノズル内におけるロータリアークの数値解析2019

    • Author(s)
      山岡智裕,平山智士,乾 義尚
    • 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
      2019 Annual Research Report
  • [Presentation] 配線用遮断器の電極開極にともなうアーク挙動の3次元非定常数値解析2019

    • Author(s)
      金井 豊,平山智士,乾 義尚
    • 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
      2019 Annual Research Report
  • [Presentation] Influence of externally applied magnetic field on arc plasmas in a passive resonance direct current circuit breaker2018

    • Author(s)
      Satoshi Hirayama
    • Organizer
      International Conference on Electrical Engineering
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] LC共振回路に並列接続されたDCロータリアークの数値解析2018

    • Author(s)
      平山智士
    • Organizer
      電気学会新エネルギー・環境研究会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2021-02-19  

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