Development of AI-Based Simulation System for Man-Machine System Behavior in Accidental Situations of Nuclear Power Plant.

• YOSHIDA Kazuo

  Japan Atomic Energy Research Institute

• YOKOBAYASHI Masao

  Japan Atomic Energy Research Institute

• TANABE Fumiya

  Japan Atomic Energy Research Institute

• KAWASE Katumi

  CSK Corporation

抄録

A prototype version of a computer simulation system named JACOS (JAeri COgnitive Simulation system) has been developed at JAERI (Japan Atomic Energy Research Institute) to simulate the man-machine system behavior in which both the cognitive behavior of a human operator and the plant behavior affect each other. The objectives of this system development is to provide man-machine system analysts with detailed information on the cognitive process of an operator and the plant behavior affected by operator's actions in accidental situations of an NPP (nuclear power plant). <BR>The simulation system consists of an operator model and a plant model which are coupled dynamically. The operator model simulates an operator's cognitive behavior in accidental situations based on the decision ladder model of Rasmussen, and is implemented using the AI-techniques of the distributed cooperative inference method with the so-called blackboard architecture. Rule-based behavior is simulated using knowledge representation with If-Then type of rules. Knowledge-based behavior is simulated using knowledge representation with MFM (Multilevel Flow Modeling) and qualitative reasoning method. Cognitive characteristics of attentional narrowing, limitation of short-term memory, and knowledge recalling from long-term memory are also modeled. The plant model of a 3-loop PWR is also developed using a best estimate thermal-hydraulic analysis code RELAP5/MOD2. <BR>Some simulations of incidents were performed to verify the human model. It was found that AI-techniques used in the human model are suitable to simulate the operator's cognitive behavior in an NPP accident. The models of cognitive characteristics were investigated in the effects on simulated results of cognitive behaviors.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌）

  Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌） 33 (2), 110-118, 1996

  一般社団法人 日本原子力学会

キーワード

• JACOS
• nuclear power plants
• man-machine systems
• cognitive modeling
• computer simulation
• artificial intelligence
• distributed cooperative inference method
• blackboard architecture
• knowledge-based behavior
• multilevel flow modeling
• qualitative reasoning
• functional knowledge
• accident simulation

詳細情報

• CRID: 1390001204095587712
• NII論文ID: 10002074129
• NII書誌ID: AA00703720
• DOI: 10.3327/jnst.33.110
• COI: 1:CAS:528:DyaK28XhvVentrY%3D
• ISSN: 18811248
• ISSN: 00223131
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可