摘要
针对2 MW液态燃料钍基实验堆熔盐管道伴热控制系统要求,通过在Simulink仿真熔盐管道预热阶段自适应PID控制温控场景,并在工程模拟机上进行不同加热功率的开环对比试验。结果表明:随着加热温度升高,模型时间常数与散热功率会增加,维持升温速率需要更高的加热功率、温度控制系统的鲁棒性;在使用自适应PID控制的加热初期,升温速率存在较大波动。因此,对设计的自适应PID温度控制系统进行优化设计,并从实际运行工况考虑,设计调功周期测试、升温速率测试和运行工况测试并对结果进行分析验证。优化后的自适应PID温度控制系统能更好地满足实际工况下实验堆熔盐管道伴热控制需求。
According to the requirements of the molten salt pipeline heat tracing control system of the 2 MW liquid fuel thorium experimental reactor,the temperature control scene is adaptively controlled by PID control in the preheating stage of the molten salt pipeline simulated in Simulink,and the open-loop comparison test of diferent heating power is caried out on the engineering simulator.The results show that as the heating temperature increases,the model time constant and heat dissipation power increases,higher heating power is required to maintain the heating rate and the robustness of the temperature control system changes.In the early heating stage of adaptive PID temperature control,the heating rate fluctuates drastically.Therefore,the designed adaptive PID temperature control system is optimized,and in consideration of the actual operating conditions,the test on power adjustment cyde,the heating rate and the operating condition are designed for analysis and verfication,which indicates that the PID temperature control system can better meet the requirements of heat tracing control of the molten salt pipeline of the experimental reactor under the actual working conditions.
作者
李劲涛
贾祥
后接
LI Jintao;JLIA Xiang;HOU Jie(Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;University of Chinese Academy of Sciences,Beiing 100049,China)
出处
《机械制造与自动化》
2023年第5期115-118,133,共5页
Machine Building & Automation
基金
中国科学院战略性先导科技专项资助项目(XDA02001005)。
关键词
管道加热控制
自适应PID
工程模拟机
仿真优化
pipe heating control
adaptive PID
engineering simulator
simulation optimization
作者简介
第一作者:李劲涛(1996-),男,安徽宿州人,硕士研究生,研究方向为熔盐堆仪控系统智能运维工作,1147209171@qq.com。
