一种PID-PID串级控制系统的设计及其性能分析  

Design and performance analysis of a PID-PID cascade control system

作　　者：刘悦婷 孟维华 丁建中 LIU Yueting;MENG Weihua;DING Jianzhong(School of Media Engineering,Lanzhou University of Arts and Science,Lanzhou 730000,China;Gansu Institute of Architectural Design and Research Co.,Ltd.,Lanzhou 730030,China)

机构地区：[1]兰州文理学院传媒工程学院,兰州730000 [2]甘肃省建筑设计研究院有限公司,兰州730030

出　　处：《延边大学学报（自然科学版）》2023年第4期358-365,共8页Journal of Yanbian University（Natural Science Edition）

基　　金：甘肃省科技计划项目(21YF5GA072)。

摘　　要：针对工业用锅炉存在的物料出口温度具有大滞后的特点,设计了一种PID-PID串级锅炉炉温控制系统.该系统以原料的出口温度和炉膛温度作为反馈量,并采用一步法整定主、副PID控制器的参数.定量计算和Simulink仿真表明,PID-PID串级控制系统的抗干扰性能、响应速度、稳定性、工作频率等显著优于单回路PID控制系统(分别提高了24%、32%、37%、41%),由此说明该PID-PID串级控制系统在控制锅炉炉温方面具有良好的应用价值.In view of the large lag characteristics of the boiler material outlet temperature in industrial production,a PID-PID cascade boiler temperature control system is designed.The system takes the outlet temperature of raw materials and furnace temperature as feedback variables,and uses a one-step method to adjust the parameters of the main PID controller and the auxiliary PID controller.Quantitative calculation and Simulink simulation show that the anti-interference performance,response speed,stability,working frequency of the PID-PID cascade control system are better than those of the single loop PID control system(increased by 24%,32%,37%,and 41%respectively).This shows the PID-PID cascade control has good a application value in the boiler temperature control system.

关 键 词：锅炉炉温控制系统 PID-PID串级控制系统 单回路PID控制系统 仿真分析 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]