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作 者:WANG Zhao SUN Jian BAI Yongqiang
出 处:《Journal of Systems Science & Complexity》2021年第1期265-280,共16页系统科学与复杂性学报(英文版)
基 金:supported by the National Natural Science Foundation of China under Grant Nos.61522303,61621063,61720106011;Program for Changjiang Scholars and Innovative Research Team in University(IRT1208);Youth Changjiang Scholars Program。
摘 要:Networked control systems(NCSs) are facing a great challenge from the limitation of network communication resources. Event-triggered control(ETC) is often used to reduce the amount of communication while still keeping a satisfactory performance of the system, by transmitting the measurements only when an event-triggered condition is satisfied. However, some network-induced problems would happen inevitably, such as communication delay and packet loss, which can degrade the control performance significantly and can even lead to instability. In this paper, a periodic eventtriggered NCS considering both time-varying delay and packet loss is studied. The system is discretized into a piecewise linear system with uncertainty. Then the model is handled by a polytopic overapproximation method to be more suitable for stability analysis. Finally, stability conditions are obtained and presented in terms of linear matrix inequalities(LMIs). The result is illustrated by a numerical example.
关 键 词:DELAY event-triggered control networked control systems packet loss stability analysis
分 类 号:TP273[自动化与计算机技术—检测技术与自动化装置]
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