空间核动力源概率安全分析技术初步研究  

Preliminary Research on Probabilistic Safety Analysis Technology of Space Nuclear Power Source

作　　者：贺芳 丁宏春 刘明皓 He Fang;Ding Hongchun;Liu Minghao(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China;School of Energy Science and Engineering,Harbin Institute of Technology,Harbin,150001,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213 [2]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《核动力工程》2023年第S02期207-210,共4页Nuclear Power Engineering

摘　　要：针对空间核动力源冗余及多样性较弱、不可维修性、高移动性、寿期内经历多个任务阶段的特点给安全评估带来的一系列新的问题,采用概率安全分析(PSA)方法开展了空间核动力源安全评估技术初步研究。深入辨析了每个任务阶段的特殊安全要求,在此基础上构建了适用于空间核动力源的综合安全目标体系。研究表明,目前空间核动力源的安全评估还面临诸多技术挑战,且于我国而言,在设计阶段同步开展空间核动力源的安全评估技术研究将有助于提高设计效率,并增强空间核动力源的安全性。A preliminary study on the safety analysis technology of space nuclear power sources was conducted using the Probabilistic Safety Analysis(PSA)method to address a series of new issues brought about by the characteristics of weak redundancy and diversity,nonmaintainability,high mobility,and experiencing multiple mission phases during their lifespan.Based on a thorough analysis of the special safety requirements of each mission phase,a comprehensive safety goal system suitable for space nuclear power sources was constructed.Research has shown that the safety assessment of space nuclear power sources still faces many technical challenges.For China,conducting safety assessment technology research on space nuclear power sources in parallel with the design phase will help improve the design efficiency and enhance the safety of space nuclear power sources.

关 键 词：空间核动力源 概率安全分析(PSA) 安全目标 

分 类 号：TL364.5[核科学技术—核技术及应用]