核电机组的自稳性与自调性及其频率影响  

Research on self-stability and self-regulation of nuclear power units and their frequency effects

作　　者：苏勋文 张荣浩 姜泽浩 王东昊 王湘军 Su Xunwen;Zhang Ronghao;Jiang Zehao;Wang Donghao;Wang Xiangjun(School of Electrical&Control Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China)

机构地区：[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022

出　　处：《黑龙江科技大学学报》2025年第2期281-286,共6页Journal of Heilongjiang University of Science And Technology

基　　金：黑龙江省省属高等学校基本科研业务费项目(2021-KYYWF-1467)。

摘　　要：为探究核电机组功率调整期间电网频率波动对运行特性的影响,利用PSCAD/EMTDC电磁暂态仿真软件,建立压水堆核电机组模型,通过机理分析电网频率波动对冷却剂流量及堆芯燃料温度的影响。结果表明,模型验证了核电机组具有良好的自稳性和自调性,电网频率下降导致了一回路冷却剂流量减少,引起堆芯燃料温度上升。该研究验证了核电机组可应对功率整定值10%的变化,电网频率波动对系统整体性能影响有限。This paper is devoted to explore the impact of power grid frequency fluctuation on the power adjustment of nuclear power units.The study works by developing a nuclear power plant model of pressurized water reactor by PSCAD/EMTDC electromagnetic transient simulation software,and investigating the effect of grid frequency fluctuation on the coolant flow rate and fuel temperature of reactor core by mechanism analysis.The results show that this model verifies the self-stability and self-adjustment of the nuclear power generating units.The decrease of a coolant flow rate caused by the decrease of the power grid frequency induces the rise of fuel temperature of reactor core.It verifies that the nuclear power generating units can cope with the change of 10%of power setting value,and power grid frequency fluctuation has limited impact on the integrity of the system.

关 键 词：核电机组 电力系统 模型仿真 

分 类 号：TM623[电气工程—电力系统及自动化]