カルマンフィルタによる原子炉一次冷却材漏えいの早期検知 : 実験による検証と長時間運用時での検知遅れに関する検討(機械力学,計測,自動制御)

概要

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This report concerns on the performance of leakage detection system for the coolant of nuclear reactor. The detection by Kalman filter is based on the change of total mass of coolant. Two points are analyzed: (1) The performance of this method is experimentally investigated by a bench-scale coolant system model. (2) The response time to detect is investigated by simulation under the condition of actual operation. This means that leakage occurres later from the system starting. The experimental result shows that proposed system can detect 0.06% loss of coolant. Therefore this method can be considered realizable. And by simulation it is cleared that occurrence of leakage in any time can be detected within 14 minutes. Comparing with the design target of the present system, this system is satisfying. Through above discussion, this system is concluded to be applicable and useful to an actual plant.
2002-05-25