Robust Stability of Networked Linear Control Systems With Asynchronous Continuous- and Discrete-Time Event-Triggering Schemes

• 成果类型: Article
• 署名作者: Xiao, Feng; Shi, Yang; Chen, Tongwen
• 署名单位: North China Electric Power University; North China Electric Power University; University of Victoria; University of Alberta
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2020.2987649
• 发表日期: 2021
• 页码: 932-939
• 关键词: L-2 gain; event-triggered communication; MIMO networked control systems; sampled-data control; time-varying delays

摘要

This article presents a unified framework for the stability and performance analysis of networked linear control systems with asynchronous continuous-time or discrete-time event-triggering. In the networked system, the multiple outputs of the plant and the controller are independently transmitted via a single shared or multiple channels based on local event-triggering conditions. Regarding the restrictions of physical devices, in the event-checking procedure, an inactive period of time is allowed after each event of data sending. So the Zeno behaviors in events are effectively avoided. In terms of algebraic properties of statespace models and time delays, we present sufficient conditions for asymptotic stability and guaranteed L-2 gain performance and characterize the robustness of the system in a time-delayed networked scenario with independent event-triggered sending of each output. The event-triggered approach provides the potential benefit of reduced number of requests for sending data via networks. A simulation example is given to verify the proposed methods.