热离子空间堆控制系统研究  

Research on Control System of Thermal Ion Space Reactor

作　　者：马骞 孙培伟[1] 吴世发 贾玉文[2] MA Qian;SUN Peiwei;WU Shifa;JIA Yuwen(College of Nuclear Science and Technology,Xi’an Jiaotong University,Xi’an 710049,China;China Institute of Atomic Energy,Beijing 102413,China)

机构地区：[1]西安交通大学核科学与技术学院,陕西西安710049 [2]中国原子能科学研究院,北京102413

出　　处：《自动化仪表》2023年第6期139-146,151,共9页Process Automation Instrumentation

基　　金：国家自然科学基金资助项目(12075181);中国核工业集团有限公司领创科研基金资助项目。

摘　　要：空间堆与传统地面反应堆的运行特性和控制方式不同,研究空间堆的控制系统十分必要。基于Matlab&Simulink工具箱,建立了热离子空间堆仿真模型。建立的模型包括点堆中子动力学模型、热工水力模型和热电转换模型。基于热离子空间堆仿真模型,建立了核功率、电功率以及冷却剂出口温度控制系统,并进行了控制参数整定和仿真分析。对电功率和冷却剂出口温度控制系统进行了优化,设计了串级控制系统。仿真结果表明:选用核功率作为被控量的控制系统控制效果较好;选用电功率和冷却剂出口温度作为被控量的控制系统控制效果较差;核功率的超调量较大。使用串级控制器优化后,控制性能得到了显著的提升。Space reactors have different operating characteristics and control methods from conventional ground reactors,and it is necessary to study the control system of space reactors.A simulation model of the thermal ion space reactor is established based on Matlab&Simulink toolbox.The established models include the point stack neutron dynamics model,the thermodynamic model,and the thermoelectric conversion model.The nuclear power,electric power and coolant outlet temperature control systems are established based on the thermal ion space reactor simulation model,and the control parameters are adjusted and analyzed in simulation.The electric power and coolant outlet temperature control systems are optimized,and a cascade control system is designed.The simulation results show that the control system with nuclear power as the controlled quantity has a better control effect,while the control system with electric power and coolant outlet temperature as the controlled quantity has a poor control effect,and the overshoot of nuclear power is larger.The control performance is significantly improved after optimization with the cascade controller.

关 键 词：核能 核反应堆 热离子空间堆 仿真模型 控制性能 比例积分微分控制器 串级控制 参数整定 

分 类 号：TH701[机械工程—仪器科学与技术]