VVER机组氙瞬态过程及控制策略分析研究  

Analysis and Research on Xenon Transient Process and Control Strategy in VVER

作　　者：李瑶 潘登[1] 化新超 黄鹏 叶刘锁 Li Yao;Pan Deng;Hua Xinchao;Huang Peng;Ye Liusuo(China Nuclear Power Operation Technology Co.,Ltd.,Research Institute of Nuclear Power Operations,Wuhan 430223,China;Jiangsu Nuclear Power Co.,Ltd.,Lianyungang 222000,China)

机构地区：[1]中核武汉核电运行技术股份有限公司/核动力运行研究所,武汉430223 [2]江苏核电有限公司,连云港222000

出　　处：《核安全》2024年第6期47-54,共8页Nuclear Safety

摘　　要：为了分析VVER机组功率或控制棒棒位变化过程引起的氙振荡趋势并进行针对性控制,本文基于田湾核电站4号机组第4循环实际情况,通过KASKAD程序包计算了工作棒组在不同位置下的堆芯稳态轴向功率分布,计算了单束控制棒动作时的径向功率分布,分析了反应堆功率变化时氙导致的反应性引入随时间的变化,通过调整工作棒组初始位置和最终位置的取值尽可能地降低功率变化带来的氙振荡对反应性的影响,给出了功率调节前后工作棒组的建议棒位,为机组运行人员提供参考。In order to analyze and effectively control the xenon oscillation caused by the power change or control rod position change process of VVER,in this paper,the steady-state axial power distribution of the core at different positions of the working rod group is calculated through the KASKAD program package based on the actual situation of the fourth cycle of Tianwan Nuclear Power Station Unit 4.The radial power distribution when a single beam of control rods in motion is calculated.The reactivity introduced by xenon changes with time when the reactor power changes is analyzed.By adjusting the initial position and final position of the working group rods,the influence of the xenon oscillation caused by the power change on reactivity is reduced as much as possible.The position of the working group rods provides a reference for the crew operator.

关 键 词：VVER 功率分布 氙振荡 反应性 KASKAD 

分 类 号：TL382[核科学技术—核技术及应用]