最优插值法在堆芯三维功率分布重构中的应用  

Application of Optimal Interpolation Method in Reconstructing 3D Power Distribution of Reactor Core

作　　者：王洋洋 孙晓晖 石兴伟 Wang Yangyang;Sun Xiaohui;Shi Xingwei(China Electric Power Planning&Engineering Institute,Beijing,China;China Nuclear Power Engineering Company,Beijing,China;Nuclear and Radiation Safety Center,MEE,Beijing,China)

机构地区：[1]电力规划设计总院,北京 [2]中国核电工程有限公司,北京 [3]生态环境部核与辐射安全中心,北京

出　　处：《科学技术创新》2023年第26期52-55,共4页Scientific and Technological Innovation

摘　　要：最优插值法能够综合程序功率分布计算值和探测器功率分布测量值,获取更加接近真实的堆芯功率分布。采用最优插值法重构堆芯三维功率分布的工作开展甚少。以60万千瓦级压水堆核电厂堆芯为研究对象,建立堆芯三维功率分布计算模型,结合节块功率分布计算值与部分节块功率分布测量值,采用最优插值法重构堆芯功率分布。计算结果表明:三维功率分布重构值比程序计算值更加接近实际功率分布。The optimal interpolation method can integrate the calculated power distribution values of the program and the measured power distribution values of the detectors to obtain a more accurate core power distribution.There is little research on using the optimal interpolation method to reconstruct the three-dimensional power distribution of the reactor core.Taking the core of a 600 MW pressurized water reactor nuclear power plant as the research object,a three-dimensional power distribution calculation model for the core was established through a program.Combining the calculated values of nodal power distribution with the measured values of partial nodal power distribution,the optimal interpolation method was used to reconstruct the core power distribution.The calculation results indicate that the reconstructed values of the three-dimensional power distribution are closer to the actual power distribution than the program calculation values。

关 键 词：堆芯三维功率分布 最优插值法 重构 

分 类 号：TL329[核科学技术—核技术及应用]