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Comprehensive and multifaceted study of the electrical properties of nano-composite insulating material

Research Project

Project/Area Number 22360114
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionToyohashi University of Technology

Principal Investigator

NAGAO Masayuki  豊橋技術科学大学, 大学院・工学研究科, 教授 (30115612)

Co-Investigator(Renkei-kenkyūsha) MURAKAMI Yoshinobu  豊橋技術科学大学, 大学院・工学研究科, 准教授 (10342495)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
KeywordsLDPE / MgO / ナノコンポジット / 直流前課電 / 空間電荷 / MgOナノフィラー / 伝導電流 / ナノコンポジット絶縁材料 / 電気的物性の解明 / 絶縁破壊 / 絶縁寿命
Research Abstract

To understand the space charge formationand the breakdownof low-density polyethylene (LDPE) / nano-sized magnesium oxide(MgO) nanocomposite materials, the breakdown strength,the space charge distribution and conduction current influenced by DC prestress were investigated. DC breakdown strength (Fb) of LDPE decreased with increase of DC prestress. This is probablybecause the bulk of LDPE became more conductive condition by the generation of a packet like chargeduring the prestress. On the other hand, DC-Fb of LDPE/MgO nanocomoposite increased with increase of DC pre-stress field.It was suggested that the conduction current controlled by the space charge near the electrodesdue to charge trapping of MgO nanofiller closely relatedto the breakdown.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (17 results)

All 2012 2011 2010 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (12 results) Remarks (3 results)

  • [Journal Article] DC Breakdown Characteristic on LDPE/MgO Nanocomposite Influenced by DC Prestress2011

    • Author(s)
      Y.Murakami, S.Imazawa, M.Kurimoto, M.Nagao, Y.Inoue, C.C.Eeddy, Y.Murata
    • Journal Title

      2011 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

      Volume: Vol.1 Pages: 334-337

    • NAID

      10030603848

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Space Charge Formation and Conduction Current of MgO/LDPE Nanocomposite2010

    • Author(s)
      Yoshinobu, Murakami, 他
    • Journal Title

      2010 Annual Report. Conference on Electrical Insulation and Dielectric Phenomena

      Volume: (CD-ROM) Pages: 556-559

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] LDPE/MgOナノコンポジットの直流絶縁破壊特性に及ぼす直流前課電の影響2012

    • Author(s)
      高村規之, 村上義信, 栗本宗明, 長尾雅行, 関口洋逸, C.C.Reddy, 村田義直
    • Organizer
      電気学会誘電・絶縁材料研究会(テーマ:国際会議報告学際分野絶縁一般)
    • Place of Presentation
      名古屋駅イノベーションパブ(名古屋)
    • Year and Date
      2012-03-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電圧履歴がLDPE/MgOナノコンポジットの空間電荷形成に及ぼす影響2012

    • Author(s)
      高村規之、草場大地、村上義信、栗本宗明、長尾雅行、井上喜之、村田義直
    • Organizer
      平成24年電気学会全国大会、2012、講演論文集CD-ROM No.2-078
    • Related Report
      2012 Final Research Report
  • [Presentation] LDPE/MgOナノコンポジットの直流絶縁破壊特性2012

    • Author(s)
      高村規之、村上義信、栗本宗明、長尾雅行、井上喜之、村田F義直
    • Organizer
      誘電・絶縁研究会、DEI-12-068
    • Related Report
      2012 Final Research Report
  • [Presentation] Simultaneous Measurement of Space Charge and Conduction Current on LDPE/MgO Nanocomposite2012

    • Author(s)
      M. Nagao, N. Takamura, M. Kurimoto, Y. Murakami, Y. Inoue and Y. Murata
    • Organizer
      2012 Annual Report. Conference on Electrical Insulation and Dielectric Phenomena USB-Memory, pp.311-314(2012)
    • Place of Presentation
      Montreal, Canada
    • Related Report
      2012 Annual Research Report
  • [Presentation] Space Charge Formation and Conduction Current in LDPE/MgO Nanocomposite under DC Ramp Field2011

    • Author(s)
      N.Takamura, Y.Murakarni, M.Kurimoto, M.Nagao, Y.Inoue, C.C.Reddy, Y.Murata
    • Organizer
      2011 International Symposium on Electrical Insulating Materials
    • Place of Presentation
      同志社大学(京都)
    • Year and Date
      2011-09-08
    • Related Report
      2011 Annual Research Report
  • [Presentation] 直流前課電がMgO/LDPEナノコンポジットの直流絶縁破壊特性に及ぼす影響2011

    • Author(s)
      今澤宗一、村上義信、長尾雅行、関口洋逸、C.C. Reddy、村田義直
    • Organizer
      平成23年電気学会全国大、講演論文集CD-ROM No. 2-077
    • Related Report
      2012 Final Research Report
  • [Presentation] Space Charge Formation and Conduction Current of LDPE/MgO Nanocomposite under DC Ramp Field2011

    • Author(s)
      N. Takamura, Y. Murakami, M. Kurimoto,M. Nagao, Y. Inoue, C. C. Reedy, Y. Murata
    • Organizer
      2011 International Symposium on Electrical Insulating Materials CD-ROM MVP2-12
    • Related Report
      2012 Final Research Report
  • [Presentation] 直流前課電がMgO/LDPEナノコンポジットの直流絶縁破壊特性に及ぼす影響2011

    • Author(s)
      今澤宗一, 他
    • Organizer
      平成23年 電気学会 全国大会講演論文集
    • Place of Presentation
      学会(大阪大学)は震災により中止だがDVD-ROM配布より2011年3月5日に論文は公知(DVD-ROM)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 一定直流電界下におけるMgO/LDPEナノコンポジットの寿命特性2010

    • Author(s)
      今澤宗一、村上義信、長尾雅行、関口洋逸、C.C. Reddy、村田義直
    • Organizer
      平成22年電気学会全国大会講演論文集CD-ROM No. 2-032
    • Related Report
      2012 Final Research Report
  • [Presentation] 一定直流電界下におけるMgO/LDPEナノコンポジットの寿命特性(II)2010

    • Author(s)
      今澤宗一、村上義信、長尾雅行、関口洋逸、C.C. Reddy、村田義直
    • Organizer
      成22年電気学会東海支部連合大会、講演論文集CD-ROM No. A4-8
    • Related Report
      2012 Final Research Report
  • [Presentation] 高時間分解能を有する空間電荷測定システムの開発2010

    • Author(s)
      高村規之、村上義信、長尾雅行
    • Organizer
      平成22年電気学会東海支部連合大会、講演論文集CD-ROM No. A4-5
    • Related Report
      2012 Final Research Report
  • [Presentation] 一定直流電界下におけるMgO/LDPEナノコンポジットの寿命特性(II)2010

    • Author(s)
      今澤宗一, 他
    • Organizer
      平成22年 電気学会関係学会 東海支部連合大会講演論文集
    • Place of Presentation
      平成22年 電気学会関係学会 東海支部連合大会講演論文集(CD-ROM)
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://dei.eee.tut.ac.jp

    • Related Report
      2012 Final Research Report
  • [Remarks]

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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