控制理论与应用2024，Vol.41Issue(5)：839-846,8.DOI:10.7641/CTA.2023.20417
不确定非线性离散系统指令滤波事件触发控制
Command filtered event-triggered control for uncertain nonlinear discrete-time systems
摘要
Abstract
In this paper,an event-triggered command filtered control method for a class of uncertain nonlinear discrete-time systems with input saturation is proposed.The command filtered control technology is used to solve the noncausal problem existing in the traditional backstepping method,and the compensation mechanism is used to improve the control accuracy of the system.Event-triggered mechanism can avoid frequent updates,including adaptive law and control law,which is conducive to reducing the computational burden and improving the utilization of resources.Unknown nonlinear functions are approximated by using fuzzy logic systems.The Lyapunov function is combined in the stability proof part.It is verified that the proposed control scheme can fully ensure that the tracking error converges to the neighborhood with small origin.And it can also ensure that the signal is bounded for closed-loop systems.The simulation results show that the proposed control method has strong robustness and good tracking performance.关键词
指令滤波反步/事件触发机制/模糊逻辑系统/输入饱和/离散Key words
command filtered backstepping/event-triggered mechanism/fuzzy logic system/input saturation/dis-crete-time引用本文复制引用
徐雨梦,于金鹏,林崇,于海生..不确定非线性离散系统指令滤波事件触发控制[J].控制理论与应用,2024,41(5):839-846,8.基金项目
国家重点研发计划项目(2017YFB1303503),国家自然科学基金项目(61973179),泰山学者工程专项经费项目(TSQN20161026),青岛重点研发专项(21-1-2-6-nsh)资助.Supported by the National Key Research and the Development Plan(2017YFB1303503),the National Natural Science Foundation of China(61973179),the Taishan Scholar Special Project Found(TSQN20161026)and the Qingdao Key Research and Development Special Project(21-1-2-6-nsh). （2017YFB1303503）
