电弧炉电极调节系统模糊自适应PID控制器设计  

Design of Fuzzy Adaptive PID Controller of the Electric Arc Furnace Electrode Regulator System

作　　者：鲁军[1] 李亮[1] 

机构地区：[1]沈阳理工大学信息科学与工程学院,辽宁沈阳110159

出　　处：《沈阳理工大学学报》2015年第2期1-5,共5页Journal of Shenyang Ligong University

基　　金：国家自然科学基金资助项目(51377110)

摘　　要：电弧炉炼钢系统是一个非线性、强耦合、多变量的系统,采用传统的PID控制很难取得理想的控制效果。基于恒阻抗控制策略,运用模糊数学的基本理论和方法设计模糊自适应PID控制器,该控制器可实时调整PID参数,使电极调节系统工作在最佳状态。仿真结果表明控制器能够有效地调节电极的升降,将电弧的弧长控制在期望值,可有效降低能耗,提高炼钢产品质量。Electric arc furnace steelmaking system has a character of multivariable, nonlinear and strong coupling, and it is difficult to use traditional PID control to achieve ideal control effect. Based on the control strategy of constant impedance, a fuzzy adaptive PID controller is designed by using basic theory and method of fuzzy mathematics, and the controller can adjust PID parameters in real time and makes the electrode regulator system work in the best state. The simulation results show that the proposed controller can effectively regulate the rise and fall of the electrode and control the arc length at an expected value. It can be ap- plied to reduce energy consumption and improve steel product quality.

关 键 词：电弧炉 电极控制 三相耦合 恒阻抗 模糊自适应PID 

分 类 号：TP273.3[自动化与计算机技术—检测技术与自动化装置]