三代核电堆芯中子通量密度测量系统软件架构设计

Software Architecture Design of In-Core Neutron Flux Density Measurement System in a Third Generation Nuclear Reactor

为了在三代核电中实现反应堆运行状态的连续实时监测,设计了一种适用于三代核电堆芯中子通量密度测量(CNFM)系统的软件架构方案。该方案采用自下而上模块化冗余设计,解决了由于计算量大、架构复杂带来的系统计算速度和精度无法同时满足要求的问题,CNFM系统实现了大量堆芯数据实时高精度快速计算,保证了反应堆运行状态监测的实时性和稳定性,同时具备向安全级核测量设备扩展的能力。目前CNFM系统已在多个“华龙一号”核电厂设计中广泛应用。

In order to realize a continuous and real-time monitoring of reactor operation status in the third generation nuclear power plants(NPPs),a software architecture scheme of in-core neutron flux measurement system(CNFM)is designed for the third generation NPPs.The CNFM system adopts the bottom to up modular redundancy design,which solves the problem that the calculation speed and accuracy of the system cannot meet the requirements at the same time due to the large amount of calculation and complex architecture.Furthermore,this design realizes the real-time,high-precision and rapid calculation of a large number of core data of CNFM system,and ensures the real-time and stability of CNFM system.In addition,this design is also with the capability to expand to the safety level nuclear measurement equipment.At present,the CNFM system has been widely used in the design of several HPR1000 NPPs.