Controllability of Networked Sampled-Data Systems

• 成果类型: Article
• 署名作者: Yang, Zixuan; Wang, Xiaofan; Wang, Lin
• 署名单位: Shanghai Jiao Tong University; Shanghai Jiao Tong University; Shanghai University; Shanghai Institute of Technology
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2023.3344692
• 发表日期: 2024
• 页码: 5081-5093
• 关键词: Controllability; Sampled data systems; pathology; Network topology; TOPOLOGY; control systems; Linear systems; Multirate sampling; network controllability; networked systems; pathological sampling; sampled-data systems

摘要

The controllability of networked sampled-data systems with zero-order holders on the control and transmission channels is explored, where single- and multirate sampling patterns are considered, respectively. The effects of sampling on the controllability of networked systems are analyzed, with some necessary and/or sufficient controllability conditions derived. Different from the sampling control of single systems, the pathological sampling of node systems could be eliminated by an appropriate design of network structure and inner couplings. Whereas the pathological sampling of single nodes will cause the entire system with a singular topology matrix to lose controllability. Moreover, any periodic sampling will not affect the controllability of networked systems with specific node dynamics. All the results indicate that whether a networked system is under pathological sampling or not is jointly determined by mutually coupled factors.