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动力学耦合分析下反应堆被动容错可靠性控制

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反应堆长时间、高负荷的运转,使内部各设备出现不同程度磨损,易发生故障.由于反应堆变量复杂,导致其控制难度较大.为此,提出动力学耦合分析下反应堆被动容错可靠性控制方法.根据差分格式、因子分解理论求解反应堆相关变量,即密度、能量、位置及其运动方向等,按照燃料与冷却剂的温度、密度求解每个区域的截面,确定反应堆运行状态;运用事件触发机制设计反应堆被动容错控制程序,使用故障分布矩阵分析每个设备故障程度,检测出故障位置,通过控制率重组理念修改正常状态反馈回路增益,使修改后系统与正常系统性能一致.实验结果表明,所提方法故障检测结果与实际情况一致,且控制误差小,有效提升了反应堆被动容错控制的可靠性.
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.

dynamic couplingreactor transientpassive fault-tolerant controlsensorsactuator

杨晨、柯国土、王静、颜寒

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中国原子能科学研究院 核工程设计研究所,北京 102413

中国原子能科学研究院,北京 102413

动力学耦合 反应堆瞬态 被动容错控制 传感器 执行器

2024

自动化与仪表
天津市工业自动化仪表研究所 天津市自动化学会

自动化与仪表

CSTPCD
影响因子:0.548
ISSN:1001-9944
年,卷(期):2024.39(9)