第三代核电堆型AP1000运行特点及堆芯仿真研究  

Research on Operational Characteristics and Core Simulation of the Third-Generation Nuclear Reactor AP1000

作　　者：吴萍[1] 杨艳晨 陈昊[1] 易俊[1] 卜广全[1] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2014年第5期1196-1202,共7页Power System Technology

摘　　要：第三核电堆型AP1000有望成为我国未来核电发展的主力堆型。分析AP1000的设计理念及其功率运行特点,结果表明,AP1000机组具有良好的负荷调整特性,能参与电网的调峰运行。在掌握AP1000堆芯反应性物理特点及与中子通量耦合特性的基础上,建立堆芯仿真模型。仿真研究了堆芯内小扰动和堆芯外大扰动情况下,堆芯状态变量和控制变量的相互作用关系。结果表明,状态变量引起的反应性主要应对小扰动后堆芯稳定运行问题,控制变量引起的反应性保证堆芯在大扰动后能按照扰动轨迹运行。In the future, the third generation of nuclear power reactor AP1000 may become the main type in China. The results of analyzing the design idea and the power operation characteristics of AP1000 show that AP1000 nuclear generating unit possesses satisfied load regulation characteristics, so it can be participated in peak load regulation of power grid. On the basis of mastering physical characteristics of core reactivity of AP1000 and its coupling features with neutron-flux, a core simulation model is established to research the interaction between state variables and control variables of the core under small disturbance inside the core or large disturbance outside the core. Simulation results show that the reactivity caused by state variables mainly copes with the post-disturbance stable operation of the core, and the reactivity caused by control variables ensures the core power enable to reach a new equilibrium point along with the trajectory variation of the disturbance.

关 键 词：第三代核电堆型 AP1000 堆芯反应性 状态变量 控制变量 稳定特性 

分 类 号：TM744[电气工程—电力系统及自动化]