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本文应用RELAP5程序进行AP1000核电厂典型的运行瞬态分析,该分析模拟核电厂主要的控制系统,包括反应堆功率控制、反应堆快速降功率、稳压器压力控制、稳压器液位控制、蒸汽发生器液位-给水控制以及主蒸汽旁排控制系统等,验证在预期运行瞬态下核电厂依靠控制系统就可达到安全稳定状态,而不触发保护系统动作。计算结果与美国西屋分析结果基本吻合,表明AP1000核电厂运行瞬态响应可满足相关设计准则的要求。
This paper applies the RELAP5 program to analyze the typical transient operation of the AP1000 nuclear power plant. The analysis simulates the main control systems of the NPP, including reactor power control, rapid reactor drop power, regulator pressure control, regulator level control, steam generation Liquid level control, main steam bypass control system and so on. It verifies that the nuclear power plant can achieve the safe and stable state by the control system under the expected operating transient without triggering the protection system. The calculation results are in good agreement with the Westinghouse analysis result of the United States, indicating that the transient response of AP1000 nuclear power plant can meet the requirements of relevant design criteria.