摘要
为解决结晶器脱模系统在非线性和时变负载等复杂条件下运行时所面临的控制挑战,提出了一种结合跟踪微分器和模糊PID的创新控制策略,称为跟踪微分模糊PID复合控制。该控制拥有两个关键特征:误差信号的快速跟踪和PID参数的动态自整定。使用AMESim和Simulink进行联合仿真,结果证明:跟踪微分模糊PID复合控制在多个方面优于传统PID和模糊PID控制。首先,该控制提高了系统的响应速度,同时减少了响应滞后和稳态误差。其次,在存在高频噪声和未知大负载干扰的情况下,该控制表现出卓越的轨迹跟踪性能和更强的抗干扰能力,为结晶器脱模系统的高精度液压伺服控制提供了新的理论支持。
This study addresses control challenges in mold demolding systems under nonlinear and time-varying load conditions.A tracking differential fuzzy PID compound control strategy is proposed to enhance system performance by integrating tracking differentiator technology with fuzzy PID control.The strategy features rapid error signal tracking and dynamic self-tuning of PID parameters.The co-simulation experiments combining AMESim and Simulink validate the proposed method.The results demonstrate significant improvements over conventional PID and fuzzy PID controllers:reduced response lag and steady-state eror,enhanced tracking precision under highfrequency noise and superior disturbance rejection against unknown large-load interference.The control strategy maintains stable performance in complex operating environments while achieving faster dynamic response.These findings provide theoretical support for high-precision hydraulic servo control in mold demolding systems,particularly in scenarios requiring robust adaptability to nonlinear disturbances.The proposed method offers a practical solution for optimizing industrial mold demolding processes with time-varying dynamics.
作者
刘于凯
陈新元
崔银
程常桂
LIU Yukai;CHEN Xinyuan;CUI Yin;CHENG Changgui(Schoo of Mechanical Engineering,W uhan University of Science and Technology,Wuhan,Hubei 430081;Key Laboratory of Metallurgical Equipment and Its Control,Ministry of Education,Wuhan University of Science and Technology,Wuhan,Hubei 430081;Key Laboratory of Iron and Steel Metallurgy and Resource Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan,Hubei 430081)
出处
《液压与气动》
北大核心
2025年第7期21-32,共12页
Chinese Hydraulics & Pneumatics
基金
国家自然科学基金(52174324)。
关键词
跟踪微分模糊PID
模糊PID
跟踪微分器
机电液伺服控制
结晶器
tracking differential fuzzy PID
fuzzy PID
tracking differentiator
electro-mechanical hydraulic servo control
mold
作者简介
刘于凯,男,2001年生,江苏南通人,硕士研究生,主要从事电液伺服系统方面的研究和工作。E-mail:1950722920@qq.com;通信作者:陈新元,男,1972年生,湖北武汉人,教授,博士,主要从事电液伺服系统方面的研究和工作。E-mail:chenxinyuan@wust.edu.cn;崔银,女,1997年生,重庆人,博士研究生,主要从事钢液初始凝固方面的研究和工作。E-mail:cuiyin@wust.edu.cn;程常桂,男,1970年生,湖北武汉人,教授,博士,主要从事连铸新技术方面的研究和工作。E-mail:ccghlx@wust.edu.cn。
