Event-triggered sliding mode control of linear repetitive processes and its application in metal rolling process  

作　　者：Xinyu LV Yugang NIU James LAM 

机构地区：[1]Key Laboratory of Smart Manufacturing in Energy Chemical Process(East China University of Science and Technology),Ministry of Education,Shanghai 200237,China [2]Department of Mechanical Engineering,The University of Hong Kong,Hong Kong 999077,China

出　　处：《Science China(Information Sciences)》2024年第3期163-177,共15页中国科学（信息科学）（英文版）

基　　金：supported in part by National Natural Science Foundation of China (Grant No.62333006);supported by National Natural Science Foundation of China (Grant No.62273286);General Research Fund of Hong Kong (Grant No.17203922)。

摘　　要：This paper investigates the design problem of a sliding mode controller for linear repetitive processes(LRPs)with a finite pass length on each pass.Under limited communication resources,an eventtriggered mechanism is implemented from the sensors to the controller,whose triggered sequence is consistent with the evolution direction of LRPs.To periodically orchestrate communication between the controller and actuator,a round-robin scheduling mechanism is established based on the pass length.A sliding function involving the state and pass profile is constructed,and the sliding mode controller is designed using triggered states and pass profile signals.Feasible controller gains are attained to ensure the stability of the resultant closed-loop system.Finally,the proposed strategy is implemented for a multi-roll metal rolling process.

关 键 词：event-triggered mechanism linear repetitive processes metal rolling process round-robin scheduling sliding mode control 

分 类 号：TG335[金属学及工艺—金属压力加工] TP273[自动化与计算机技术—检测技术与自动化装置]