基于DMC-PID控制的催化剂温控系统设计  

Design of Catalyst Temperature Control System Based on DMC-PID Control

作　　者：李红利[1] 李献民[1] 

机构地区：[1]天津工业大学电气工程与自动化学院

出　　处：《化工自动化及仪表》2017年第1期65-68,110,共5页Control and Instruments in Chemical Industry

摘　　要：通过对动态矩阵控制(DMC)算法和传统PID控制的分析,提出一个基于DMC-PID串级控制的催化剂温控系统。仿真结果表明:DMC-PID控制效果优于PID-PID控制;电流副回路采用PID控制,能够快速有效调节电流进而控制燃烧炉内温度;温度主回路采用DMC控制,克服了传统温控系统存在的超调量大、时延及滞后性等问题,避免了多种不可测扰动的影响。Through analyzing dynamic matrix control（ DMC） and traditional PID control,a DMC-PID cascade control-based catalyst temperature control system was proposed. The simulation results show that,the DMCPID cascade control outperforms PID control; and adopting PID control in the current＇s minor loop can rapidly and effectively adjust the current to control temperature within the combustion furnace; and adopting DMC con-trol in temperature＇s main loop can eradicate large overshoot,time-delay and lagging in conventional temperature control system and any trouble incurred by many unmeasured disturbances can be avoided.

关 键 词：催化剂温控系统 DMC-PID串级控制 仿真分析 MATLAB 

分 类 号：TH862[机械工程—仪器科学与技术]