利用时空分离法建立核电站堆芯实时仿真模型

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Real-Time Simulation Model of PWR Core by Time-Space Separation Method

1. Research Institute of Simulation and Control, North China Electric Power University, Baoding, 071003, China;
2. College of Electronic and Information Engineering, Hebei University, Baoding 071002, China

摘要: 采用时空分离法实时求解两能群六缓发中子组三维扩散方程。研究了压水堆核电站堆芯系统的仿真建模方法,并考虑慢化剂密度、硼浓度、氙和钐中毒、控制棒位置、燃料和慢化剂温度、燃料燃耗等因素对堆芯中子通量分布的影响。在STAR-90通用图形化仿真支撑平台上,建立了压水堆堆芯的仿真算法与模型,进行了动态特性仿真试验。结果表明,该方法求解实时性好,易于调整。
- 时空分离法 /
- 反应堆堆芯 /
- 仿真 /
- 模型
Abstract: The method of simulation and modeling is studied for PWR core. Based on the method of separating the Time and Space variables, the neutron flux distributions are calculated from the 3D diffusion equations of two energy groups and six delayed neutron precursors, taking account of the following parameters effects on reactivity such as moderator density, boron concentration, xenon and samarium poisoning, control rod positions, moderator and fuel temperature, and fuel burn-up. The simulation algorithms and models are built on the STAR-90 simulation platform. The simulation results show that the computing speed is rapid and the model parameters are easy to adjust with time-space separation method.
- Time-space separation method /
- Reactor core /
- Simulation /
- Model