四辊板带轧机厚度的模糊自整定PID控制  

Fuzzy Self-tuning PID Control on Thickness of Four-high Mill

作　　者：邓思聪 樊立萍[1] 

机构地区：[1]沈阳化工大学信息工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2014年第4期365-369,共5页Journal of Shenyang University of Chemical Technology

基　　金：国家科技支撑计划项目(2012BAF09B01)

摘　　要：针对轧机液压AGC控制系统中难以解决的时滞、非线性等问题,提出把模糊控制器与传统PID控制器相结合,组成一种具有自学习、自调整功能的新型智能模糊自整定PID控制器.模糊自整定PID控制器具有在线实时动态整定PID控制器参数的功能.通过对Matlab仿真实验结果的对比表明:采用新型智能模糊自整定PID控制器比传统PID控制器具有达到稳态时间短、稳态性能好等优点,能更好地满足控制系统对精度的要求.Fuzzy control is combined with PID to construct a novel intelligent fuzzy self-tuning PID controller to solve the control difficulty in AGC system caused by time lag and nonlinearity. A fuzzy self- tuning PID controller has the advantage of tuning the parameters of PID controller online. Comparison be- tween the matlab simulation reaults shows that the new type of intelligent fuzzy self-tuning PID controller can give better control effect than traditional PID controller in steady state time and steady state perform- ance, so the proposed controller is better able to meet the precision requirements of control system.

关 键 词：模糊 自整定 PID控制器 液压AGC控制系统 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]