高精細デジタル画像を用いた沸騰水型軽水炉の炉心状態監視手法の開発 Development of Reactor Core Status Monitoring Techniques Using High Resolution Digital Images in Boiling Water Nuclear Power Plants

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著者

    • 妹尾 誠 SENOO Makoto
    • (株)日立製作所 電力グループ 電力・電機開発研究所 Power and Industrial Systems R&D Laboratory, Power Systems, Hitachi, Ltd.

抄録

  Reactor core status monitoring techniques have been developed to identify automatically the presence of a fuel assembly and double blade guide at each fuel exchanging step. This paper describes a method to identify the reactor core status using gray scale images obtained by a high resolution digital camera installed at the top of the reactor pool and test results obtained from images taken at an actual nuclear power generating plant. We developed a lattice mapping method for top guide positional data mapping on the reactor core images and a pattern matching method using the initial core image as the reference one. Evaluation testing of the system was carried out using more than 10 half reactor core images. We found the overall identification rate was about 96% for 1,825 image samples having the size of a fuel assembly. The processing time for identifying a half reactor core image including about 400 image samples was 60 to 90 seconds on a computer with 2.8 GHz CPU. This processing time is much smaller than the time for the shortest fuel exchanging interval.<br>

収録刊行物

  • 日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan  

    日本原子力学会和文論文誌 = Transactions of the Atomic Energy Society of Japan 6(1), 22-34, 2007-03-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018413488
  • NII書誌ID(NCID)
    AA11643165
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13472879
  • NDL 記事登録ID
    8772356
  • NDL 雑誌分類
    ZN36(科学技術--原子力工学・工業)
  • NDL 請求記号
    Z74-C788
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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