基于采样的线性不确定系统事件触发控制  

Sampling-based Event-triggered Control for Linear Uncertain Systems

作　　者：陈烁 樊渊[1] CHEN Shuo;FAN Yuan(School of Electrical Engineering and Automation,Anhui University,Hefei 230601,China)

机构地区：[1]安徽大学电气工程与自动化学院,安徽合肥230601

出　　处：《控制工程》2021年第5期999-1004,共6页Control Engineering of China

基　　金：国家自然科学基金资助项目(61973002);教育部产学合作协同育人项目(201802259001,201802137016);安徽省自然科学基金资助项目(2008085J32)。

摘　　要：针对线性不确定系统模型,提出一种基于采样的事件触发控制方案。该方案的特点是仅在离散采样间隔下检测事件触发条件是否满足,极大提高了通信资源的利用效率。首先,应用不确定性理论对系统进行建模分析,给出基于采样的事件触发条件,并确保最小事件触发间隔的存在。然后,根据所提出的事件触发条件,加入可调节的动态变量,进而提出动态事件触发条件并证明其稳定性。最后,通过仿真实例证明所提出基于采样的事件触发机制的有效性。For the linear uncertain system model,an event-triggered control scheme based on sampling is proposed.The feature of this scheme is to detect whether the event-triggered conditions are satisfied only at discrete sampling intervals,which greatly improves the utilization efficiency of communication resources.Firstly,the uncertainty theory is applied to model the system.The event-triggered condition based on sampling is derived and the minimum event-triggered interval is guaranteed.Then,according to the proposed eventtriggered condition,a dynamic event-triggered condition is proposed by adding an adjustable dynamic variable and its stability is proved.Finally,a simulation example is given to demonstrate the effectiveness of the proposed event-triggered mechanism based on sampling.

关 键 词：采样数据 事件触发 动态触发 鲁棒控制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]