Mixed Event-Triggered Output Regulation for Networked Switched Systems With Unstable Switching Dynamics Under Long-Duration DoS Attacks

被引:12
|
作者
Li, Lili [1 ]
Fu, Jun [2 ,3 ]
Zhang, Yu [1 ]
Chai, Tianyou [2 ]
Albertos, Pedro [4 ]
机构
[1] Dalian Maritime Univ, Coll Marine Elect Engn, Dalian 116026, Peoples R China
[2] Northeastern Univ, State Key Lab Synthet Automat Proc Ind, Shenyang 110819, Peoples R China
[3] Northeastern Univ, Fac Robot Sci & Engn, Shenyang 110819, Peoples R China
[4] Univ Politecn Valencia, Inst Automaticae Informat Ind, Valencia 46022, Spain
关键词
Switches; Denial-of-service attack; Control systems; Switched systems; Regulation; System performance; Upper bound; Long-duration DoS attacks (LDDAs); mixed event-triggered mechanism (ETM); networked switched systems (NSSs); output regulation; unstable switching dynamics (USDs); DESIGN;
D O I
10.1109/TCYB.2022.3180294
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this article, the event-triggered output regulation problem (EORP) under the denial-of-service (DoS) attacks is considered for networked switched systems (NSSs) with unstable switching dynamics (USDs). The USDs here refer to the unsolvable output regulation of each subsystem and the destabilization at partial switching instants, which indicates that the Lyapunov function does not decrease monotonically in activation intervals of each subsystem and increases at partial switching instants. First, long-duration DoS attacks (LDDAs) are considered, where LDDAs imply that their duration may be longer than the total dwell time (DT) of several adjacent activated subsystems. By imposing constraints at switching instants, consecutive asynchronous subsystem switching caused by LDDAs and USDs is allowed, that is, the subsystem switches several times but the controller switching is blocked by LDDAs and controllers fail to switch correspondingly. Second, mixed event-triggered mechanisms (ETMs), combining event-triggered conditions and periodic sampling conditions, are designed to reduce network burden under LDDAs and improve system performance subject to destabilizing switching. Then, an improved DT for switching signal permits irregular arrangement of destabilizing and stabilizing switching and is more suitable for NSSs subject to LDDAs. Moreover, sufficient conditions ensure the solvability of EORP for NSSs with USDs under LDDAs, network-induced delays, random packet losses, and packet disorders. Finally, a switched RLC circuit shows the feasibility of the proposed method.
引用
收藏
页码:7150 / 7161
页数:12
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