核电站工程模拟器中的RELAP5建模

Modeling by RELAP5 in Nuclear Power Plant Engineering Simulator

文章涉及数值反应堆系统(DRS)组成部分之一的核电站热工水力模块的PELAP5建模方法。建模分为:RELAP5源程序的改造;利用原始RELAP5进行电厂的常规建模;利用改造后的RELAP5进行电厂的特殊建模。该电厂模型构造方法不仅可动态采集RELAP5模型节点上的参数,且可动态控制节点上的部分参数,满足核电站工程模拟器的要求。

Thermal hydraulic calculation module RELAP5 is one part of digital reactor system （DRS）. The modeling method by RELAP5 is described. There are mainly fol- lowing 3 steps： The first is modification of RELAP5 source code; the second is constructing normal model; the third is establishing special model. Thus besides plant-running parameters can be dynamically extracted from RELAP5, it can be dynamically changed in RELAP5. This model is strong enough to meet the needs of nuclear power plant engineering simulator.