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自律型プラントの開発(6) OECD/NEA専門家会議発表、ENEA, KWU, Haldenの訪問

Development of autonomous plant (6); Presentation at OECD/NEA specialist meeting, visit to ENEA, KWU, Halden

渡辺 兼秀

Watanabe, Kenshu

ファジィ理論を利用した原子炉異常診断手法の開発成果をOECD/NEA主催の原子力プラント運転データのトレンド/パターン解析に関する専門家会議(平成元年4月3日$$sim$$4月6日ENEA本部、ローマ)で発表するとともにENEA-CASACCIA、西ドイツGimemens・KWU,ノルウェーOECDHaldenReactorProjectを訪問し、知識ベース、システム構築法等に関する討議を行った。専門家会議には13ヶ国と4機関(CEC, IAEA, OECD, WANO)から約100名が参加した。会議はInvited Papers, OECD調査報告書、テクニカル・セッションの3つからなっている。発表はテクニカル・セッションで行い、動燃の情報処理に関する研究成果を紹介した。ENEA-CASACCIAでは、SEL/GOULD計算機に記憶したウェスチング社製シミュレータを用い知識導出し、日本原子力研究所(ハルデン・プロジェクト)で開発したエキスパートシステムDISKETの知識ベースに用いてきた。 KWUでは、通常運転時だけでなく故障/事故時にも運転支援する硬度計装システムPrins(ProcessInformationSystem)を開発している。状態量を棒グラフ等で示すだけでなく、保護機器作動レベルと合わせて冷却材温度/主蒸気圧力を炉出力の関数として表示する等して、プラント状態の評価を容易にしている。 Haldenでは、(1)炉心状態監視・予測支援システムSCORPIO、(2)過渡状態時の警報数を減らすHALO(HandlingAlarmsusingLOgic)、(3)DISKETを用いた診断システム等を統合するシステムISACS(Integrated Surveillance And Control System)を開発している。これらの訪問先で、数値計算シミュレータと知識情報処理計算機を結合した開発環境等が参考になった。

Presentation of a paper entitled FUZZY DIAGNOSIS has been made at CSNI/CEC Specialist Meeting on Trend and Pattern Analyses of operational Data from Nuclear Power Plants, held in Rome, Italy, from 3rd to 6th April 1989. And discussions on AI (Artificial Intelligence) system, knowledge base and man-machine interface were done at the ENEA near Rome, the KWU in FR Germany and OECD halden reactor project in Norway. About a hundred specialists were paticipated at the meeting from 13 countries and 4 agiencies (CEC, IAEA, OECD, WANO). The meeting was comprised from three sessions for invited papers, investigation results by OECD and technical presentation. R&D results on information processing in PNC could be introduced by the presentation of FUZZY DIAGNOSIS, in the technical session. At the ENEA-CASACCIA, knowledge base was built in the expert system of the DISKET, developed by Japan Atomic Research Institute through the joint work in Halden Reactor Projeet, using a simulator fabricated by Westing House and installed in SEL/GOULD computer. At the KWU, vigorous developmental works were done on prins (Process Information System) to support the operators under abnormal/normal conditions in nuclear power plants. It is possible for them to know plant conditions easily from the graphics in which coolant temperature/steam pressure as a function of reactor power is displayed with levels showing activation of protection systems. At the Halden Reactor Project, developments were carried out on ISACS (Integrated Surveillance And Control System), to assemble SCORPIO to support operator to monitor and predict condition of a core, HALO (Handling Alarms using LOgic) to reduce numbers of alarms in transients and the DISKET. From these visiting, development environments in which computers for numerical calculation and symbol processing were linked, would be thought to be useful for us to proceed the R&D concerning the autonomous plant. Information would be exchanged because of ...

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