摘要
针对焦炉集气管压力系统强干扰、非线性和多变量耦合的特点,建立焦炉集气管压力系统数学模型,采用基于最小二乘支持向量机(LS-SVM)α阶逆系统的方法辨识出焦炉集气管压力系统的逆系统,使双输入双输出的集气管压力系统解耦成2个相互独立的单输入单输出伪线性子系统,并引入PID控制器设计闭环控制系统实现对焦炉集气管压力的控制。仿真结果表明,该控制策略可实现集气管压力系统的动态解耦控制,且鲁棒稳定性好,跟踪精度高,可保证焦炉集气管压力稳定在现场工艺要求的范围内。
According to the characteristics, such as strong external disturbances, non-linear and coupling relations,a mathematical model of the gas collector pressure system of coke ovens was established, the least squares support vector machines(LS-SVM) α-th order inverse system method was employed to identify the inverse system of the gas collector pressure of coke oven, and the two-input two-output system was decoupled into two independent pseudo-linear subsystems of single-input single-output. Meanwhile, a closed-loop control system was designed with PID controller to control the gas collector pressure of coke oven. The simulation results show that the control strategy can implement the dynamic decoupling control with robust performance and high tracking accuracy, the gas collector pressure is ensured in technical range.
作者
董鑫
张世峰
许四长
关慧敏
DONG Xin;ZHANG Shifeng;XU Sizhang;GUAN Huimin(School of Electrical and Information Engineering, Anhui University of Technology, Ma'anshan 243032, China)
出处
《安徽工业大学学报（自然科学版）》
CAS
2016年第2期135-141,共7页
Journal of Anhui University of Technology（Natural Science）
基金
安徽省教育厅自然科学研究项目(KJ2008B104)
关键词
集气管压力
最小二乘支持向量机
逆系统
解耦控制
gas collector pressure
least squares support vector machines(LS-SVM)
inverse system
decoupling control
