原子能科学技术2024，Vol.58Issue(7)：1406-1412,7.DOI:10.7538/yzk.2024.youxian.0316
华龙一号堆芯在线监测系统的设计与实现
Design and Implementation of Core Surveillance System for HPR1000 Reactor
张香菊 1蔡利 1王军令 1杨梦怡 1罗世杰 1卢皓亮 1彭思涛 1厉井钢 1王婷1
作者信息
- 1. 中广核研究院有限公司,广东深圳 518026
- 折叠
摘要
Abstract
Difference from the movable neutron detector for CPR1000 reactor can only be used periodically,HPR1000 and other Gen-Ⅲreactor innovatively use self-powered neutron detector(SPND)to continuously measure the in-core neutron flux.This paper provided detailed design and implementation of the high-precision core surveillance system for the first HPR1000 reactor.Firstly,a novel SPND signal processing method was proposed,which not only solved the limitation of traditional design software for high-precision SPND current calculation,but also enabled high-precision signal processing of measured SPND.Based on this,a high-precision core 3D power reconstruction method was established.Subsequently,the online monitoring system SOPHORA for the HPR1000 reactor core designed based on this theoretical model was described,and its uncertainty analysis method was explained in detail.The uncertainty analysis results indicate that the accuracy of the key parameters of the system can meet the needs of high-precision core monitoring.Finally,in order to confirm the performance of the system,a comparative analysis was conducted on the deviation between the measurement and theoretical prediction of SPND current during the start-up process of the HPR1000 reactor,as well as the deviation of component power distribution.The results show that the deviation is much smaller than the regulatory requirements for initiating physical tests.The double validation of the uncertainty analysis results and the component power deviation analysis results during the start-up process indicates that SOPHORA achieves high-precision core monitoring,and its use of SPND signal processing and core 3D power reconstruction methods has significant accuracy and reliability.关键词
华龙一号/SPND/堆芯在线监测系统/SOPHORAKey words
HPR1000/SPND/core surveillance system/SOPHORA分类
能源科技引用本文复制引用
张香菊,蔡利,王军令,杨梦怡,罗世杰,卢皓亮,彭思涛,厉井钢,王婷..华龙一号堆芯在线监测系统的设计与实现[J].原子能科学技术,2024,58(7):1406-1412,7.
