Dynamic simulation of the pressure control system of AP1000 pressurizer based on the acslX software

According to the characteristics of internal heat transmission process of AP1000 pressurizer,combining AP1000 parameters,a three regional model of pressurizer pressure control system for nuclear power plant was established based on the SNERDI control system model in this paper,for the purpose of improving of the two regional model.Simulation experiments has been performed by using acslX software according to AP1000 pressurizer pressure control logical.By comparison of the simulating results and the data of related design document,the results indicates that the improved model is accurate and improvable.This model can also lay a foundation for future simulation work of CAP1400 pressurizer.