模糊控制在可逆式四辊轧机液压AGC系统中的应用  

Application of Fuzzy PID Control in Hydraulic AGC System of Reversing Four-high Mill

作　　者：包野[1] 李玉贵[1] 侯成 王高平[1] 

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]山重建机有限公司,山东临沂276000

出　　处：《机械工程与自动化》2013年第5期137-139,共3页Mechanical Engineering & Automation

摘　　要：为了进一步提高四辊轧机液压AGC系统的厚度控制精度,将传统的PID控制与模糊控制相结合,设计了一种参数自调节的模糊自适应PID控制器。该控制器通过分析偏差和偏差变化率,利用模糊逻辑实现PID参数在线自动调节。经MATLAB仿真表明,其控制效果优于传统的PID控制,具有良好的动、静态特性及较强鲁棒性。In order to improve the thickness control precision of hydraulic AGC system in four-high mill, the combination of PID control and fuzzy control was put forward and a fuzzy self-adjusted PID controller was built. According to the error and its derivative, the online self-adjustment of PID parameters was realized using fuzzy logic. The results of simulation indicate that the fuzzy self-adjusted PID is better than the conventional PID, has the better dynamic and steady property and the stronger robustness.

关 键 词：液压AGC系统 模糊自适应PID控制 MATLAB仿真 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TG33[自动化与计算机技术—控制科学与工程]