事件触发机制下的网络化系统非脆弱控制  

NON-FRAGILE CONTROL OF NETWORKED SYSTEMS UNDER EVENT-TRIGGERED MECHANISM

作　　者：王岩 赵志伟[2] 葛超 Wang Yan;Zhao Zhiwei;Ge Chao(College of Artificial Intelligence,North China University of Science and Technology,Tangshan 063210,Hebei,China;Department of Computer Science and Technology,Tangshan University,Tangshan 063000,Hebei,China)

机构地区：[1]华北理工大学人工智能学院,河北唐山063210 [2]唐山学院计算机科学与技术系,河北唐山063000

出　　处：《计算机应用与软件》2025年第3期41-47,共7页Computer Applications and Software

基　　金：河北省自然科学基金项目(F2021209006);河北省自然科学基金--钢铁联合研究基金资助项目(E2019105123);河北省高等学校科学技术研究项目(ZD2019311);唐山市人才资助项目(A2021110015)。

摘　　要：针对网络化控制系统存在带宽约束、网络诱导时延、外部干扰和控制器参数摄动等问题,提出一种基于事件触发机制的非脆弱输出反馈控制策略。为降低带宽约束,引入事件触发机制。考虑时延和干扰,建立综合性的网络化系统时滞模型。设计非脆弱控制器消除控制器参数摄动对被控系统的影响。引入一种改进的双边Lyapunov-Krasovskii泛函,推导保证闭环系统H_(∞)稳定性的保守性较低的条件,并求出非脆弱控制器增益。仿真结果表明,提出的控制策略能够有效控制系统性能,并可以节约网络资源。In order to solve the problems of networked control systems,such as bandwidth constraint,network-induced delay,external disturbance and controller parameter perturbation,a non-fragile output feedback control strategy based on event-triggered mechanismis proposed.To reduce bandwidth constraints,the event-triggered mechanism was introduced.Considering delay and disturbance,a comprehensive delay model for networked systems was established.A non-fragile controller was designed to eliminate the influence of controller parameter perturbation on the controlled system.An improved two-side Lyapunov-Krasovskii functional was introduced to derive the low conservative conditions for the H_(∞)stability of the closed-loop system,and the gain of the nonfragile controller was obtained.Simulation results show that the control strategy can effectively control system performance and save network resources.

关 键 词：网络化控制系统 事件触发机制 输出反馈 非脆弱控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]