VARIABLE STRUCTURE PID CONTROL OF FOUR-TANK SYSTEM WITH INPUT CONSTRAINT
The four-tank system has a wide range of application backgrounds in process control,and usually has such prominent features as slow,time-delay,coupling,multiple-input,multiple-output,and strong nonlinearity,which imposes higher requirements on control strategies.In this paper,considering the actually existing input constraint,a variable structure PID control method is studied based on the feedback linearization of nonlinear system.Simulation results show that this control method improves the control performance obviously,compared with conventional PID control and is easier to apply in engineering.
Four-tank system Input constraint Feedback linearization Variable structure PID control
Wang Chen Han Guangxin
Control Engineering of 1601,Jilin Institute of Chemical Technology,ChengDe Street,Jilin City,China Professor of Jilin Institute of Chemical Technology,ChengDe Street,Jilin City,China
国际会议
吉林
英文
363-366
2018-06-23(万方平台首次上网日期,不代表论文的发表时间)