核电厂仪控系统设计验证仿真平台开发

Development of A Nuclear Power Plant Simulator for Design and Verification of Instrumentation and Control Systems

在核电厂仪控系统的设计过程中,需要进行反复的逻辑验证、参数优化等工作,本文开发的仿真平台可以为这一过程提供闭环的逻辑验证工具。仿真平台采用分布式并行计算结构、模块化设计。开发了多种功能模块用于不同功能的仿真,包括热工水力计算、控制系统仿真以及人-机界面等。各模块通过平台的标准接口嵌入到仿真平台中,接口采用标准动态链接库的形式。基于设计验证仿真平台,建立了1000 MW压水堆核电厂的工程模拟机,并对其中的控制系统模型进行了参数优化与调试。经过优化的工程模拟机仿真结果与核电厂控制系统(RRC)设计手册中的运行曲线瞬态趋势一致、瞬态前后的稳定值基本相同。

An engineering nuclear power plant simulator was developed aimed to provide a close-loop analysis tool during the design of new Instrumentation and Control （I＆C） systems. Firstly, a simulation platform with a distributed and parallel computing architecture was developed based on .NET environment. Different functional modules, mainly including the thermal-hydraulic module, the control system module and the human-machine interface module, were integrated in the platform to complete the complex model design. Then, based on the simulation platform, a pressurized water reactor simulator was built. Taking RRC Design Manual as a reference, the performance of the simulator, especially the performance of I＆C systems, was evaluated and modified. The final result of the simulator is qualitative accord with the RRC Design Manual and the steady value agrees well with the RRC Design Manual before and after transients.