Development of a nuclear power plant simulator for design and verification of instrumentation and control systems - 14206

An engineering Nuclear Power Plant(NPP) simulator was developed aimed to aid the design of new Instrumentation and Control(I and C) systems. Firstly, a simulation platform with a distributed and parallel computing architecture was developed. 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(PWR) simulator was built, covering the main thermal-hydraulic and control systems in the nuclear island and parts of the turbine island. Finally, taking RRC Design Manual as a reference, the performance of the simulator, especially the performance of I and 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. This work indicated that the simulation platform can be used in assisting the parameter optimization and logic verification during the design of a new I and C systems. (authors)