Control system design for a pressure-tube-type supercritical water-cooled nuclear reactor via a higher order sliding mode method  

作　　者：M.Hajipour G.R.Ansarifar 

机构地区：[1]Department of Nuclear Engineering,Faculty of Physics,University of Isfahan,Isfahan 81746-73441,Iran

出　　处：《Nuclear Science and Techniques》2024年第1期145-154,共10页核技术（英文）

摘　　要：Nuclear power plants exhibit non-linear and time-variable dynamics.Therefore,designing a control system that sets the reactor power and forces it to follow the desired load is complicated.A supercritical water reactor(SCWR)is a fourth-generation conceptual reactor.In an SCWR,the non-linear dynamics of the reactor require a controller capable of control-ling the nonlinearities.In this study,a pressure-tube-type SCWR was controlled during reactor power maneuvering with a higher order sliding mode,and the reactor outgoing steam temperature and pressure were controlled simultaneously.In an SCWR,the temperature,pressure,and power must be maintained at a setpoint(desired value)during power maneuvering.Reactor point kinetics equations with three groups of delayed neutrons were used in the simulation.Higher-order and classic sliding mode controllers were separately manufactured to control the plant and were compared with the PI controllers speci-fied in previous studies.The controlled parameters were reactor power,steam temperature,and pressure.Notably,for these parameters,the PI controller had certain instabilities in the presence of disturbances.The classic sliding mode controller had a higher accuracy and stability;however its main drawback was the chattering phenomenon.HOSMC was highly accurate and stable and had a small computational cost.In reality,it followed the desired values without oscillations and chattering.

关 键 词：Supercritical water nuclear reactor Higher order sliding mode controller Steam temperature Steam pressure Point kinetics model 

分 类 号：TM623[电气工程—电力系统及自动化]