Stability and Performance of Asynchronous Sampled-Data Interconnected Systems: An Integral Approach

• 成果类型: Article
• 署名作者: Xiao, Feng; Wang, Long; Chen, Tongwen
• 署名单位: North China Electric Power University; North China Electric Power University; Peking University; University of Alberta
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2023.3240381
• 发表日期: 2023
• 页码: 6789-6796
• 关键词: L-2 gains; asynchronous data-sampling; Interconnected systems; simultaneous stability.

摘要

In this article, we focus on the stability of asynchronous sampled-data interconnected systems and the evaluation of how asynchronous sampling and time delays degrade the L-2 gains from exogenous inputs to controlled outputs. To judge the stability and evaluate the performance of systems, an integral approach is proposed and it combines a revised form of input-to-state stability Lyapunov conditions with an integral description of bounded measurement errors. Practical procedures for the application of the approach are further presented. In the case with shared sampling periods, a time-translation approach is introduced to investigate the relationship between asynchronous sampling and time delays.