Passive Fault-tolerant Reliability Control of Reactors Under Dynamic Coupling Analysis
Reactor long time,high load operation,make the internal equipment appear different degrees of wear,easy to break down.Due to the complexity of reactor variables,it is difficult to control them.Therefore,a passive fault-toler-ant reliability control method for reactor based on dynamic coupling analysis is proposed.Solve the reactor related variables,such as density,energy,position,and direction of motion,based on the difference scheme and factorization theory.Calculate the cross-section of each region according to the temperature and density of the fuel and coolant,and determine the operating state of the reactor.Design a passive fault-tolerant control program for the reactor using event triggering mechanism,analyze the degree of each equipment fault using a fault distribution matrix,detect the fault location,and modify the gain of the normal state feedback loop through the concept of control rate recombina-tion,so that the modified system performance is consistent with that of the normal system.The experimental results show that the fault detection results of the proposed method are consistent with the actual situation,and the control error is small,which effectively improves the reliability of the reactor passive fault-tolerant control.