Optimal control for spatial-temporal distributed nonlinear autoregressive with exogenous inputs correlation model of steel rolling reheating furnace: a coordinated time-sharing control approach  

作　　者：Qingfeng Bao Sen Zhang Jin Guo Zhiqiang Li Zhenquan Zhang 

机构地区：[1]School of Automation and Electrical Engineering,University of Science and Technology Beijing,Beijing 100083,China [2]Key Laboratory of Knowledge Automation for Industrial Processes,Ministry of Education,Beijing 100083,China [3]Hesteel Group Company Limited,Shijiazhuang 050031,Hebei,China

出　　处：《Control Theory and Technology》2023年第2期190-211,共22页控制理论与技术（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.62173032 and 62003038).

摘　　要：Accurate control of slab temperature and heating rate is an important significance to improve product performance and reduce carbon emissions for steel rolling reheating furnace(SRRF).Firstly,a spatial temporal distributed-nonlinear autoregressive with exogenous inputs correlation model(STD-NARXCM)to spatial temporal distributed-autoregressive with exogenous inputs correlation model(STD-ARXCM)in working point is established.Secondly,a new coordinated time-sharing control architecture in different time periods is proposed,which is along the length of the SRRF to improve the control performance.Thirdly,a hybrid control algorithm of expert-fuzzy is proposed to improve the dynamic of the temperature and the heating rate during time period 0 to t_(1).A hybrid control algorithm of expert-fuzzy-PID is proposed to enhance the control accuracy and the heating rate during time period t_(1) to t_(2).A hybrid control algorithm of expert-active disturbance rejection control(ADRC)is proposed to boost the anti-interference and the heating rate during time period t_(2) to t_(3).Finally,the experimental results show that the coordinated time-sharing algorithm can meet the process requirements,the maximum deviation of temperature value is 8-13.5℃.

关 键 词：Steel rolling reheating furnace Spatial-temporal distribution Coordinated time-sharing control Controller structure in different periods Hybrid control algorithm 

分 类 号：TG142[一般工业技术—材料科学与工程]