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Study of improvement of electrical social environment on the electromagnetic field generated with high density electric energy transportation.

Research Project

Project/Area Number 10450108
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionShibaura Institute of Technology

Principal Investigator

OKUMURA Katsuo (1999-2000)  SHIBAURA INSTITUTE OF TECHNOLOGY DEPT.OF ELECTRICAL SYSTEMS FOR URBAN ENGINEERING, PROFESSOR., 工学部, 教授 (00052837)

河村 達雄 (1998)  芝浦工業大学, 工学部, 教授 (20013097)

Co-Investigator(Kenkyū-buntansha) KAWAMURA Tatsuo  RESEARCH ORGANIZATION FOR ADVANCED ENGINEERING, SHIBAURA INSTITUTE OF TECHNOLOGY, CENTER FOR ENERGY AND ENVIRONMENT, GUEST PROFESSOR., 先端工学研究機構, 客員教授 (20013097)
ISAKA Katsuo  UNIVERSITY OF TOKUSHIMA DEPT.OF ELECTRICAL ENGINEERING, PROFESSOR., 工学部, 教授 (50035630)
奥村 克夫  芝浦工業大学, 工学部, 教授 (00052837)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 2000: ¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 1999: ¥4,400,000 (Direct Cost: ¥4,400,000)
Fiscal Year 1998: ¥5,400,000 (Direct Cost: ¥5,400,000)
KeywordsMagnetic field / Electric field / Electromagnetic field / Extremely Low Frequency (ELF) / Corona noise / Walsh transform / Wavelet transform / Shielding material
Research Abstract

This study carried out during the past three-years from April, 1998 to March, 2001.An aim of this study is to improve the electrical environment on electromagnetic wave interference generated with transport of high density electric energy.
The obtained results are summarized as follows :
(1) In case of single-phase GIL model, it was found that the magnetic field around the GIL is not reduced by the aluminum enclosure, since the eddy current circulates between inner and outer parts in the aluminum enclosure. Other hand, in case of three-phase GIL model, it was found that the mamnetic field around the GIL are reduced by aluminum enclosure, since most of the eddy current appears at inner part in the aluminum enclosure and flows to the opposite side of enclosure.
(2) ELF magnetic field near three-phase GIL model was evaluated by measuring magnetic flux density for various conductor configurations. As the results, ELF magnetic field near three-phase GIL was considerably reduced comparing with … More single-phase one.
(3) The finite element method is applied to the analysis of current density distributions in a human model which stands with erect position on the insulating circular plate, and the characteristics of such internal current density distributions are clarified.
(4) In axisymmetrical human model. The calculations lead to the quantification of the characteristics of the internal current density inside an ungrounded human model. The results have demonstrated the adequacy of the experimental results reported by Kaune etal who used an 3-dimensional miniature human model.
(5) The walsh and wavelet transformation method was used in order to analyzed for purpose deducing basic characteristics or the fluctuation corona discharge. The obtained results are correlated with previous findings and theories of negative pulse corona discharges.
(6) To develop the failure diagnosis techniques for HV power system, we have investigation to obtain the AC corona discharge pattern with different insulating analysis by using Self Organization Map Method (SOMM) with Neural Network (NN). It was indicated that the SOMM with NN was an effective technique for a Failure Diagnosis of the power system.
(7) Investigation was carried out for the development of the failure diagnosis technique by locating of corona in electric power installation using the electromagnetic wave method. By analyzing the difference of delay times of electromagnetic wave from corona discharge point, the detecting of the corona location in electric power installation can be realized. The obtained results are shown that this monitoring technique was an extremely valuable for detection and location of the low level corona.
(8) In order to understand shielding effect of materials using the metal spray coatinm technique, measurements have been performed using shielded enclosure. In case of paper sprayed coating with metal, the attenuation was almost shows the measurement limit, and it is though that adhesion of metal and the material influenced strongly characteristics of shielding effectiveness. Less

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (32 results)

All Other

All Publications (32 results)

  • [Publications] Y.Miyamae,K.Okumura, et al.: "Evaluation of ELF Magnetic Field using GIL Model"Proceedings of the 10th Asian Conference on Electrical Discharge. H-803. 427-429 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 千葉,伊坂: "電界中の非接地人体モデル内に誘導される電流密度分布"電気学会論文B. Vol.119-B No.3. 401-407 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 井上,奥村: "絶縁材料に対する劣化パターン識別手法の検討"電気学会放電研究会資料. ED-01-21. 19-24 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 奥村,安藤,河村: "負針-平板ギャップにおけるコロナ放電の変動特性に関する研究"電気設備学会誌. Vol.19 No.12. 860-866 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 東,住広,奥村: "電力設備内の機器等における故障箇所標定システムの開発"電気設備学会誌. Vol.21 No.2. 158-165 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 森田,住広,奥村: "金属溶射技術を用いた電磁波シールド材の遮断特性とその評価"電子情報通信学会環境電磁工学研究会. EMCJ99-133. 19-24 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 伊坂勝生: "ディジタル化時代とEMC(第16編 第2章)"ミマツデータシステム. 6 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Miyamae, K.Okumura, et al.: "Evaluation of ELF Magnetic Field using GIL Model"Proceedings of the 10th Asian Conference on Electrical Discharge. H-803. 427-429 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] A.Chiba, K.Isaka: "Distribution of Induced Current Density Inside an Ungrounded Human Model Exposed to Electric Field."T.IEE Japan. Vol.119-B, No.3. 401-407 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Inouse, K.Okumura: "Investigation of Characteristics of Corona Discharge using Identification Pattern Method for Insulating Material"ED-01-18〜34, DEI-01-24〜40, HV-01-18〜34. 19-24 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Okumura, Y.Ando, T.Kawamura: "Investigation of Stochastic Properties of Negative Corona Discharge with Needle-Plane Gap in Air"J.IEIE Japan. Vol.19, No.12. 860-866 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Okumura, S.Sumihiro, et al.: "Development of Failure Location System in Electric Power Installation using Electromagnetic Wave Method"J.IEIE Japan. Vol.21, No.2. 158-165 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] K.Okumura, S.Sumihiro, et al.: "Measuring the Electro Magnetic Shielding Effectiveness of Materials using the Metal Spray Coating Technique"EMCJ99-133, Japan. 19-24 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Miyamae,K.Okumura, et al.: "Evaluation of ELF Magnetic Field using GIL Model"Proceedings of the 10th Asian Conference on Electrical Discharge. H-803. 427-429 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 千葉,伊坂: "電界中の非接地人体モデル内に誘導される電流密度分布"電気学会論文B. Vol.119-B No.3. 401-407 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 井上,奥村: "絶縁材料に対する劣化パターン識別手法の検討"電気学会放電研究会資料. ED-01-21. 19-24 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 奥村,安藤,河村: "負針-平板ギャップにおけるコロナ放電の変動特性に関する研究"電気設備学会誌. Vol.19 No.12. 860-866 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 東,住広,奥村: "電力設備内の機器等における故障箇所標定システムの開発"電気設備学会誌. Vol.21 No.2. 158-165 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 森田,住広,奥村: "金属溶射技術を用いた電磁波シールド材の遮断特性とその評価"電子情報通信学会環境電磁工学研究会. EMCJ99-133. 19-24 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 伊坂勝生: "ディジタル化時代とEMC(第16編 第2章)"ミマツデータシステム. 6 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Okumura,T.Kawamura,et al.: "Characteristics of Power Frequency Magnetic Field in Three Phase Enclosure Type GIL Model"11th.International Symposium on High Voltage Engineering. S2. 2.19-2.21 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Miyamae,K.Okumura,et al.: "Low-Frequency Magnetic Field Evaluation of Three Phase GIL Model"Japan-Korea Joint Symposium on ED & HVE. 93-96 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Azuma,K.Okumura,et al.: "Investigation on Location for Deterioration of Insulation in the Gas Insulated Substation(GIS) by using Electromagnetic Wave Method"Japan-Korea Joint Symposium on ED & HVE. 41-44 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 松本、林、伊坂: "互いに平行および直交する低周波電解・磁界内の球状導体モデル内部の誘導電流密度解析"電気学会論文誌A. Vol.119-ANo.7. 1039-1044 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 奥村、安藤、河村: "負-平板ギャップにおけるコロナ放電の変動特性に関する研究"電気設備学会誌. Vol.19No.12. 860-866 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 山崎、奥村: "ELF磁界が及ぼす生体への影響-ELF磁界による誘導電流の測定-"電気学会研究会資料 IM-00-6〜12. IM-00-6〜12. 37-42 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 石山、奥村、河村: "三相一括形GILモデルによるELF磁界環境の評価に関する研究" 電気学会放電・高電圧合同研究会資料. ED-98-10 HV98-1. 1-6 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Okumura,T.Kawamura,et al.: "Evaluation of ELF Magnetid Field using Single Phase GIL Model" Proceeding of 1998 Korea-Japan Joint Symposium on ED & HVE. 91-94 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 太良尾・林・伊坂: "ELF磁界による2媒質偏心球生体モデル内の誘導電界分布特性の解析" 電気学会論文誌. Vol.118-A No.5. 475-482 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 千葉、伊坂: "電界中の非接地人体モデル内の誘導される電流密度分布" 電気学会論文誌. Vol.119-B No.3. 401-407 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 兵頭、奥村、河村: "油中コロナ放電を用いた絶縁油の劣化診断に関する基礎研究" 電気学会放電研究会資料. ED-98-71. 11-16 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 奥村、安藤、河村: "負針-平板ギャップにおけるコロナ放電の変動特性に関する研究" 電気学会放電研究会資料. ED-98-88. 7-12 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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