基于NUREG/CR-7007导则的AP1000设备接口模块(CIM)和多样化驱动系统(DAS)多样性分析

Based on NUREG / CR-7007 Guidelines for AP1000 Device Interface Module(CIM) and Diversification Drive System(DAS) Diversity

AP1000核电厂采用多样化驱动系统(DAS)作为反应堆保护系统的多样性后备,两者之间的多样化程度对共模故障影响重大。本文基于NUREG/CR-7007导则对设备接口模块(CIM)和多样化驱动系统进行多样性分析和计算,确认满足NUREG/CR-7007的要求,为多样化系统的设计提供参考。

AP1000 nuclear power plant uses a Diverse Actuation System （DAS） as the diversity backup for the reactor protection system, the diversity between them is very important to the common cause failure （CCF）. This paper performs a diversity evaluation of the Component Interface Module （CIM） and Diversity Actuation System （DAS） to verify it meet the requirement of NUREG/CR-7007 Guidance and provide reference for I＆C system design.