和睦系统控制站输出允许功能研制与应用  

Development and Application of FirmSys Control Station Output Enabled Function

作　　者：张智慧[1] ZHANG Zhihui(China Techenergy Co.,Ltd.,Beijing 100094,China)

机构地区：[1]北京广利核系统工程有限公司,北京100094

出　　处：《自动化仪表》2021年第S01期139-142,147,共5页Process Automation Instrumentation

摘　　要：核电机组的核安全级数字化控制保护系统控制站在大修期间处于单路供电状态。为方便设备维修,通常会对控制站执行临时控制变更(TCA),即强制控制站中的保护信号为固定值而不输出实时值。当单路供电出现故障又恢复时,控制站失电重启导致内部TCA自动清除,会误触发安全注入和安全喷淋信号,给核电站带来较大的安全隐患和经济损失。和睦系统(FirmSys)是我国首个自主研发的核安全级数字化控制保护系统平台。通过对和睦系统输出允许功能进行需求分析,提出了一种“允许用户手动干预控制站信号输出”的设计方案,彻底解决了控制站失电重启误触发问题。实现了输出允许功能的和睦系统已经在阳江5^(#)、6^(#)、红沿河5^(#)、6^(#)、田湾5^(#)、6^(#)、防城港3^(#)、4^(#)机组进行了成功应用。The control station of nuclear safety grade digital control and protection system of nuclear power plant is in single-channel power supply state during overhaul.To facilitate equipment maintenance,a temporary control alteration(TCA)is usually performed on the control station,which forces the protection signal in the control station to be a fixed value rather than output a real time value.When the single-channel power supply fails and resumes,the power loss and restart of the control station will lead to the internal TCA automatic clearance,which will trigger the safety injection and safety spray signals by mistake,which will bring great safety hidden danger and economic loss to the nuclear power plant.FirmSys is the first independently developed digital control and protection system platform for nuclear safety in China.Based on the demand analysis of the output permissible function of the FirmSys,a design scheme of“allowing users to manually intervene the signal output of the control station”is proposed,which completely solves the problem of the mis-trigger of power loss and restart of the control station.The FirmSys with the function of output permission has been successfully applied in units of Yangjiang 5^(#),6^(#),Hongyanhe 5^(#),6^(#),Tianwan 5^(#),6^(#)and Fangchenggang 3^(#),4^(#).

关 键 词：和睦系统 核保护系统 控制站 输出允许 核安全级 临时变更控制 

分 类 号：TH86[机械工程—仪器科学与技术]