高温气冷堆核电站计算机化运行规程方案及异常事件处理规程入口识别

Scheme of Computerized Operating Procedure System and Abnormal Event Operating Procedure Entrance Recognition for HTR NPP

根据高温气冷堆核电站计算机化运行规程系统的设计准则,给出了高温气冷堆核电站计算机化运行规程的总体设计方案,指出计算机化运行规程系统的一个重要作用就是提供规程入口选择。高温气冷堆核电站的异常事件处理规程是基于事件的,因此选择规程入口的关键在于异常事件的识别。为解决该问题,采用具有图形描述能力和严密数学理论的模糊Petri网,构建了异常事件识别专家系统。相较于传统方法,模糊Petri网结构化特性和知识表达能力更强,推理效率大幅提高,便于计算机编程实现。通过典型异常事件识别的仿真,表明所构建的异常事件识别专家系统是合理可行的,为高温气冷堆核电站计算机化运行规程系统的研制打下了基础。

According to the design rules of computerized operating procedure system(COPS)for high-temperature gas-cooled reactor nuclear power plant(HTR NPP),the overall scheme of COPS of HTR NPP was proposed.It was pointed out that an important function of COPS was to provide a choice of right procedure.Abnormal event operating procedures for HTR NPP are event-based,so the key to select a protocol entry point is the recognition of anomalous events.To solve the problem,an abnormal event recognition expert system was built for abnormal event operating procedure entrance monitoring of HTR NPP,using the method of fuzzy Petri net,which has excellent graphic description ability and rigorous mathematical theory.Compared with the traditional methods,the method in this paper has great advantages in strengthening the structural features and knowledge expression ability,improves the reasoning efficiency and is convenient for computer programming.The simulation of a typical case of abnormal event recognition verifies the feasibility and effectiveness of the designed system,laying the foundation for the development of COPS of HTR NPP.