摘要
对电加热炉时滞系统的优化控制研究中,系统炉温的控制是至关重要的。而电加热炉的温度具有时变性、滞后性和大惯性等特性,常规的PID控制难以保证效果。为此,引入一种先进的控制——动态矩阵控制(DMC)。介绍了DMC的算法原理,给出算法实施的具体步骤;针对已辨识出的一阶时滞电加热炉模型,设计DMC控制器。仿真研究表明,相对于传统的PID控制,动态矩阵控制能兼顾调节时间短、超调量小的优点,在系统时滞变化的情况下,DMC依旧能保持良好的控制效果。因此,对于一阶时滞系统的优化控制,DMC是一种值得推广的控制方法。
In the study of control optimization in electric heating furnace system with time delay,the control of temperature in the furnace is crucial.However,the temperature in the furnace has the characteristics time varying,large inertia and lag,the conventional PID control is difficult to guarantee the effect.So,a kind of advanced control,dynamic matrix control(DMC)is introduced.DMC algorithm principle is introduced,and the algorithm implementation steps are given.DMC controller is designed based on the first-order time-delay electric heating furnace model.The simulation results show that the dynamic matrix control can take into account the advantages of short regulation time and small overshoot,comparing with the traditional PID control.In the case of the variation of delay,the DMC can maintain good control performance.For the optimal control problem of the first order time-delay system,DMC is a method worth for promoting.
出处
《长江大学学报（自科版）（上旬）》
2016年第8期23-28,4-5,共6页
JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG
基金
湖北省教育厅科研计划资助项目(Q20151302)
长江大学教学研究项目(JY2014031)
关键词
动态矩阵控制
控制器
电加热炉
时滞系统
dynamic matrix control
controller
the electric heating furnace
time-delay system
