重庆理工大学学报（自然科学版）2018，Vol.32Issue(6)：175-181,7.DOI:10.3969/j.issn.1674-8425(z).2018.06.027
基于Smith预估器的自适应模糊PID在电缆线径控制系统中的应用
Application of Self-adaptive Fuzzy-PID Based on Smith Predictor in Cable Wire Size Control
摘要
Abstract
The Wire diameter control is one of the core problems of cable jacket production line.In view of the limitations of conventional PID control to jacket extrusion system with nonlinear,time-varying and hysteresis,this paper proposed a adaptive fuzzy PID control method based on Smith Predictor.Through the simulation in Matlab,the step response and disturbance inhibition of the traditional PID control and the adaptive fuzzy PID control with Smith predictor compensation was compared.The results show that the adaptive fuzzy PID control with lag compensation has the advantages of shorter adjustment time,smaller overshoot and better anti-interference ability.At the same time,by changing the system lag time,the influence of Smith predictor before and after improvement on system performance was compared though simulation.After improving the Smith predictor,the stability and robustness of the system have been significantly improved,which is more suitable for the complex and ever-changing working environment.关键词
Smith预估器/自适应模糊PID/线径控制/时滞系统Key words
Smith predictor/adaptive fuzzy PID system/diameter control/time-delay system分类
信息技术与安全科学引用本文复制引用
周克良,王荡荡,韩李珂..基于Smith预估器的自适应模糊PID在电缆线径控制系统中的应用[J].重庆理工大学学报（自然科学版）,2018,32(6):175-181,7.基金项目
国家自然科学基金资助项目(61363011) （61363011）
