CPR1000项目DCS模拟量信号失效分析与优化  

The Replacement Values of Non-safety DCS in CPR1000 Nuclear Power Plant

作　　者：方军 

机构地区：[1]中广核工程有限公司,深圳518000

出　　处：《自动化博览》2018年第8期84-87,共4页Automation Panorama1

摘　　要：MACS VI平台是DCS国产化后首次应用于CPR1000项目上的非安全级DCS平台。核电站DCS采集的模拟量信号广泛来源于核电站的各个系统,且模拟量信号普遍运用于核电站各系统的状态监视、控制和保护。因失电、线路故障、传感器或仪表故障、模块故障等原因造成信号失效时,模拟量信号值将变得不可靠。当AI信号失效时,DCS控制系统仍需要一个值参与其逻辑运算。DCS会按照预先设定的替代方式和缺省值来代替质量变差的AI信号进行逻辑运算。本文就MACS VI平台下实现模拟量采集信号失效的判断和计算进行分析研究和优化。The non-safety DCS of MACS VI is first applied to CPR1000 nuclear power plant. Analog signals are collected widely by the DCS systems in nuclear power plants, and they are used for state monitoring, control and protection in the nuclear power plant generally. In some case analog signal values will become unreliable, DCS still requires a value in its logical operation. DCS will perform logic operations by using default values according to the preset mode. This paper is about judging the failure and default values of analog signals in MACS VI.

关 键 词：DCS 模拟量输入信号 缺省值 

分 类 号：TP277.3[自动化与计算机技术—检测技术与自动化装置]