Host: The Japan Society of Mechanical Engineers
Name : The 30th International Conference on Nuclear Engineering (ICONE30)
Date : May 21, 2023 - May 26, 2023
In this paper, the pressurizer system of 150MW pressurized water reactor is taken as the research object, and the reactor model is established based on Relap5. The thermo-hydraulic program Realp5 and the pressurizer control system are coupled through 3Keymaser simulation platform to realize data interaction. According to the characteristics of dynamic process of pressurizer, fuzzy control system and fuzzy PID control system for water level and pressure of pressurizer are proposed respectively. The performance of the pressurizer water level and pressure control system is tested in the process of the pressurizer water level and pressure set point change and power change. The simulation results show that compared with the traditional PID control and fuzzy PI control system, the fuzzy control can better respond to the changes of the system under different working conditions, and the settling time is shorter. The fuzzy controller can effectively improve the control performance of the water level and pressure of the pressurizer under different working conditions.
