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"Study of Nonlinear Conduction Mechanism for Polymeric Insulating Material due to Space Charge Formation Under AC High Field."

Research Project

Project/Area Number 17360147
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionNumazu National College of Technology

Principal Investigator

TOHYAMA Kazuyuki  Numazu National College of Technology, Dept.of Digital Eng., Professor (40197851)

Project Period (FY) 2005 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥16,030,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2007: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2006: ¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 2005: ¥6,800,000 (Direct Cost: ¥6,800,000)
KeywordsDissipation Current Waveform / Electroluminescence / Low Density Polyethylene / AC High Field / Conduction / Nanocomposite / Dielectric Property / Space Charge / 電気伝導 / 発光スペクトル / 時間依存性 / 電極金属依存性 / 瞬時電界上昇率
Research Abstract

Polymers are extensively used as insulating material in underground power cables. It has been well established that electroluminescence (EL) and charge injection, which gives rise to space charge in the polymeric insulation, occur at ac field above a certain threshold value. Space charge can cause dissipative energetic processes such as photon and phonon emission, increase the local electric field, lead to the reduction of the insulation withstand voltage and ultimately to premature failure of the power cable. It is considered that EL is emitted even before the first partial discharge, EL occur continuously above a certain threshold field and has been attributed to the injection of electric charge form the electrodes. The injected charge accumulates in the insulating material to form a space charge, which plays a major role in do voltage applications, but cannot be completely ignored in ac applications. The role of space charge in polymeric materials subjected to AC high field is still … More not well understood.
In order to clarify the conduction mechanism of polymers, such as Low Density Polyethylene (LDPE), LDPE/MgO nanocomposite materials, and so on, under ac high field, the simultaneous observation system of dissipation current waveform and electroluminescence have been constructed for three years since 2005. As the developed dissipation current waveform detecting circuit, which called as"Displacement Current Bypassing Method(DCBM)", does not include any inductance for canceling the capacitance component, it is possible to detect the harmonics with high accuracy. Furthermore it is not only detecting the harmonics of the dissipation current in high field, but also estimating the volume resistivity and relative permittivity under AC high field. The observation of EL under AC high field is also very useful to understand the charge behavior. The developed EL observation system is just for a polymeric film sample. In 2002, the sample holder for a film sample was developed at the collaboration with NRC. To realize the simultaneous observation of the dissipation current waveform observed by DCBM and EL observed by PMT and CCD, the several software, which make possible perfectly controlling the digital oscilloscopes for the dissipation current waveform and EL observation, the triggering control for high sensitivity CCD camera, and the arbitrary function generator, has also developed by using Lab VIEW. In order to clarify the conduction mechanism for polymer under AC high field, the various kinds of experiments were carried out, such as estimations of dE/dt by using trapezoidal waveform application, effect of MgO nano filler on LDPE/MgO nanocomposite materials, the time variations of fundamental and third harmonics of dissipation current and EL, and so on, by using the developed system. Less

Report

(4 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (40 results)

All 2008 2007 2006 2005

All Journal Article (9 results) Presentation (29 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] 低密度ポリエチレンの交流高電界下での電荷挙動に関する検討2007

    • Author(s)
      坪井臣悟
    • Journal Title

      第12回高専シンポジウム(沼津)講演要旨集

      Pages: 216-216

    • Related Report
      2006 Annual Research Report
  • [Journal Article] LDPE/MgOナノコンポジット材料の台形波印加時の体積抵抗率の評価2007

    • Author(s)
      日向健介
    • Journal Title

      平成19年電気学会全国大会講演論文集 [2]

      Pages: 30-31

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Considerations of Conduction Mechanism of LDPE under AC High Field2006

    • Author(s)
      Kazuyuki Tohyama
    • Journal Title

      Conference Record of The 2006 IEEE International Symposium on Electrical Insulation 06CH37794

      Pages: 494-497

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Film Thickness Dependence of Dissipation Current for LDPE Film under Trapezoid Waveform Application2006

    • Author(s)
      Shingo Tsuboi
    • Journal Title

      2006 Annual Report Conference on Electrical Insulation and Dielectric Phenomena 06CH37829

      Pages: 210-213

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Dielectric Properties of LDPE/MgO Nanocomposite Material Under AC High Field2006

    • Author(s)
      Kensuke Hinata
    • Journal Title

      2006 Annual Report Conference on Electrical Insulation and Dielectric Phenomena 06CH37829

      Pages: 313-316

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 台形波印加時のLDPEの損失電流の電極金属依存性2006

    • Author(s)
      坪井 臣悟
    • Journal Title

      平成18年電気学会全国大会講演論文集 分冊2

      Pages: 26-26

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 交流高電界下におけるMgO/LDPEナノコンポジット材料の電気伝導特性2006

    • Author(s)
      藤田 彩乃
    • Journal Title

      平成18年電気学会全国大会講演論文集 分冊2

      Pages: 92-93

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Transient response of various kinds of high field alternating signals for low density polyethylene2005

    • Author(s)
      Shingo Tsuboi
    • Journal Title

      2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena 05CH37702

      Pages: 697-700

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Considerations for conduction mechanisms under AC high field for low density polyethylene2005

    • Author(s)
      Ayano Fujita
    • Journal Title

      2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena 05CH37702

      Pages: 701-704

    • Related Report
      2005 Annual Research Report
  • [Presentation] Simultaneous Observation of Electroluminescence and Dissipation Current Waveform in LDPE film.2007

    • Author(s)
      Sliunta Imai
    • Organizer
      2007 Annual Report CEIDP
    • Place of Presentation
      The Fairmont Hotel Vancouver, BC, CANADA
    • Year and Date
      2007-10-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] Dissipation Current and Electroluminescence of LDPE/MgO Nanocomposite Material under Trapezoidal Waveforms Application2007

    • Author(s)
      Kensuke Hinata
    • Organizer
      2007 Annual Report CEIDP
    • Place of Presentation
      The Fairmont Hotel Vancouver, BC, CANADA
    • Year and Date
      2007-10-15
    • Related Report
      2007 Annual Research Report
  • [Presentation] 交流高電界下での損失電流波形と電界発光の同時観測2007

    • Author(s)
      今井俊太
    • Organizer
      平成19年電気学会基礎・材料・共通部門大会論文集
    • Place of Presentation
      大阪大学コンベンションセンター
    • Year and Date
      2007-08-27
    • Related Report
      2007 Annual Research Report
  • [Presentation] LDPE/MgOナノコンポジット材料の台形波印加時の損失電流と電界発光特性2007

    • Author(s)
      日向健介, 他
    • Organizer
      誘電・絶縁材料研究会
    • Place of Presentation
      電気学会(東京市ヶ谷)
    • Year and Date
      2007-06-28
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Dissipation Current and Electroluminescence of LDPE/MgO Nanocomposite Material under Trapezoidal Waveforms Application2007

    • Author(s)
      Kensuke Hinata, et al.
    • Organizer
      Technical Meeting on DEI, IEE Japan
    • Place of Presentation
      Tokyo
    • Year and Date
      2007-06-28
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LDPE/MgOナノコンポジツト材料の台形波印加時の損失電流と電界発光特性2007

    • Author(s)
      日向健介
    • Organizer
      誘電・絶縁材料研究会、DEI-07-58
    • Place of Presentation
      電気学会会議室(東京都千代田区5番町)
    • Year and Date
      2007-06-28
    • Related Report
      2007 Annual Research Report
  • [Presentation] 低密度ポリエチレンの交流高電界下での電荷挙動に関する検討2007

    • Author(s)
      坪井臣悟, 他
    • Organizer
      第12回高専シンポジウム
    • Place of Presentation
      三島市
    • Year and Date
      2007-01-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Consideration of Charge Behavior of Low Density Polyethylene under AC High Field2007

    • Author(s)
      Shingo Tsuboi, et al.
    • Organizer
      12^<th> Kosen Symposium
    • Place of Presentation
      Mishima
    • Year and Date
      2007-01-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LDPE/MgOナノコンポジット材料の台形波印加時の体積抵抗率の評価2007

    • Author(s)
      日向健介, 池
    • Organizer
      平成19年電気学会全国大会
    • Place of Presentation
      富山大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 交流高電界下での損失電流波形と電界発光の同時観測2007

    • Author(s)
      今井俊太, 他
    • Organizer
      平成19年電気学会基礎・材料・共通部門大会
    • Place of Presentation
      大阪大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Dissipation Current and Electroluminescence of LDPE/MgO Nanocomposite Material under Trapezoidal Waveforms Application2007

    • Author(s)
      日向健介, et al.
    • Organizer
      2007 CEIDP
    • Place of Presentation
      Vancouver
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Simultaneous Observation of Electroluminescence and Dissipation Current Waveform in LDPE film2007

    • Author(s)
      今井俊太, et al.
    • Organizer
      2007 CEIDP
    • Place of Presentation
      Vancouver
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Evaluation for Volume Resistivity of LDPE/MgO Nanocomposite Material under Trapezoidal Waveform Application2007

    • Author(s)
      Kensuke Hinata, et al.
    • Organizer
      2007 Annual Meeting Record IEE Japan
    • Place of Presentation
      Toyama
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Simultaneous Observation of Dissipation Current Waveform and Electroluminescence under AC High Field2007

    • Author(s)
      Shunts Imai, et al.
    • Organizer
      2007 Annual Conference of FMS, IEE Japan
    • Place of Presentation
      Osaka
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Simultaneous Observation of Electroluminescence and Dissipation Current Waveform in LDPE Film2007

    • Author(s)
      Shunta Imai, et al.
    • Organizer
      2007 CEIDP
    • Place of Presentation
      Vancouver
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 台形波印加時のLDPEの損失電流の電極金属依存性2006

    • Author(s)
      坪井臣悟, 他
    • Organizer
      平成18年電気学会全国大会
    • Place of Presentation
      横浜国立大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 交流高電界下におけるMgO/LDPEナノコンポジット材料の電気伝導特性2006

    • Author(s)
      藤田彩乃, 他
    • Organizer
      平成18年電気学会全国大会
    • Place of Presentation
      横浜国立大学
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Consideration of Conduction Mechanism of LDPE under AC High Field2006

    • Author(s)
      Kazuyuki Tohyama, et al.
    • Organizer
      2006 IEEE ISEI
    • Place of Presentation
      Toronto
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Film Thickness Dependence of Dissipation Current for LDPE Film under Trapezoid Waveform Application2006

    • Author(s)
      坪井臣悟, et al.
    • Organizer
      2006 CEIDP
    • Place of Presentation
      Kansas
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Dielectric Properties of LDPE/MgO Nanocomposite Material Under AC High Field2006

    • Author(s)
      日向健介, et al.
    • Organizer
      2006 CEIDP
    • Place of Presentation
      Kansas
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Electrode Metal Dependence of Dissipation Current For LDPE under Trapezoid Waveform Application2006

    • Author(s)
      Shingo Tsuboi, et al.
    • Organizer
      2006 Annual Meeting Record IEE Japan
    • Place of Presentation
      Yokohama
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Electrical Conduction Properties under AC High Field In MgO/LDPE Nanocomposite Materials2006

    • Author(s)
      Ayano Fujita, et al.
    • Organizer
      2006 Annual Meeting Record IEE Japan
    • Place of Presentation
      Yokohama
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Consideration of Conduction Mechanism of LDPE under AC High Field2006

    • Author(s)
      Kazuyuki Tohyama, et al.
    • Organizer
      2006 ISEI
    • Place of Presentation
      Toronto
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Film Thickness Dependence of Dissipation Current For LDPE Film under Trapezoid Waveform Application2006

    • Author(s)
      Shingo Tsuboi, et al.
    • Organizer
      2006 CEIDP
    • Place of Presentation
      Kansas
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Dielectric Properties of LDPE/MgO Nanocomposite Material under AC High Field2006

    • Author(s)
      Kensuke Hinata, et al.
    • Organizer
      2006 CEIDP
    • Place of Presentation
      Kansas
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Transient Response of Various Kinds of High Field Alternating Signals for Low Density Polyethylene2005

    • Author(s)
      坪井臣悟, et al.
    • Organizer
      2005 CEIDP
    • Place of Presentation
      Nashville
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Consideration for Conduction Mechanisms under AC High Field for Low Density Polyethylene2005

    • Author(s)
      藤田彩乃, et al.
    • Organizer
      2005 CEIDP
    • Place of Presentation
      Nashville
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Transient response of Various Kinds of High Field Alternating Signals for Low Density Polyethylene2005

    • Author(s)
      Shingo Tsuboi, et al.
    • Organizer
      2005 CEIDP
    • Place of Presentation
      Nashville
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Consideration of Conduction Mechanisms under AC High Field for Low Density Polyethylene2005

    • Author(s)
      Ayano Fujita, et al.
    • Organizer
      2005 CEIDP
    • Place of Presentation
      Nashville
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 真空蒸着法2008

    • Inventor(s)
      遠山和之
    • Industrial Property Rights Holder
      財団法人浜松科学技術研究振興会
    • Industrial Property Number
      2008-064501
    • Filing Date
      2008-03-13
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 真空金属蒸着方法2008

    • Inventor(s)
      遠山和之
    • Industrial Property Rights Holder
      財団法人浜松科学技術研究振興会
    • Industrial Property Number
      2008-064501
    • Filing Date
      2008-03-13
    • Related Report
      2007 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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