实时模拟提高分布式在线监测和故障检测的压水反应堆：（Real-time simulations to enhance distributed on-line monitoring and fault detection in Pressurized Water Reactors）.pdfVIP

Annals of Nuclear Energy 109 (2017) 557–573 Contents lists available at ScienceDirect Annals of Nuclear Energy journal homepage: www.elsevi /locate/anucene Real-time simulations to enhance distributed on-line monitoring and fault detection in Pressurized Water Reactors Min-jun Peng ⇑, Hang Wang, Xu Yang, Yong-kuo Liu, Liang-zhuang Guo, Wei Li, Nan Jiang Key Subject Laboratory of Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin, Heilongjiang 150001, China a r t i c l e i n f o a b s t r a c t Article history: Human error is one of the leading factors in nuclear accidents. However, on-line monitoring may help Received 16 March 2017 operators to detect and locate the abnormality on time, and thus it has the benefit of reducing misoper- Received in revised form 24 April 2017 ation, improve the safety of nuclear power plants and guide the maintenance plan. This work presents a Accepted 26 April 2017 distributed on-line monitoring and fault detection methodology based on modeling and simulation of Available online 13 June 2017 nuclear plant’s sub-units. This methodology utilizes quantitative calculation from the simulation model and combines the measurements gotten from instrumentation and control system to detect incipient Keywords: faults. Under normal operation, the method allows real-time tracking to set dynamic thresholds. When On-line mon