基于RELAP5的沸水堆机理模型建立与仿真

核电厂高精度、实时、动态仿真要求有准确的反应堆热工水力以及控制系统等模型,它除用于电厂安全分析、操纵员培训等,还可用于控制系统参数优化、实际仪表控制系统验证等方面。为了研究在核电站控制系统问题上引入智能控制和优化算法的可行性,利用热工水力软件RELAP5,以沸水堆核电站为例,对沸水堆的堆芯系统和主给水系统进行了建模,并在稳态和暂态工况下进行了仿真验证。仿真结果与电站的实际数据基本一致,表明了基于RELAP5程序所建立的沸水堆热工水力模型的正确性。

Modeling and Simulation of BWR Mechanism Based on RELAP5

The high - precision,real - time,dynamic simulation of a nuclear power plant needs accurate reactor thermal hydraulics and control system models,which can be used in safety analysis of power plant,operator training,control system parameter optimization, verification of the actual control instrument and so on.This paper studies the feasibility of introducing intelligent control methods and optimization algorithm to the control of nuclear power plant The model of Boiling Water Reactor nuclear power plant is built with the thermal hydraulic software RELAP5,including the reactor coolant system and the main feed water system.Then,simulations in steady and transient state are performed.The simulation results are consistent with the data collected from real plant,which validates the thermal - hydraulic system of Boiling Water Reactor based on RELAP5 developed in this paper.