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- Title
Event-trigger-based hybrid scheduling and feedback control for networked control systems.
- Authors
QIAOLI MA; CHUAN ZHOU; XINCHENG ZHU; RONGHAO WANG
- Abstract
An integrated design scheme of hybrid scheduling strategy and state feedback control for resourceconstrained networked control systems (NCSs) with time-delay is proposed in this paper. The hybrid scheduling scheme integrates an event-triggered mechanism with the multi-threshold and dynamic dwell-time switching rule in order to achieve stronger flexibility and less conservatives. The event-triggered mechanism determines the system corresponding mode which can avoid the unnecessary signals transmission and reduce network bandwidth occupation in a certain extent. Furthermore, dynamic dwell-time switching rule is used to determine its dwell-time of each mode which can reduce switching frequency and improve system dynamic performance. Firstly, the NCS is modelled as a discrete-time switched system with parameter uncertainties. Secondly, by using multiple Lyapunov function and linear matrix inequality (LMI) technique, an integrated design scheme of the hybrid scheduling and feedback controller is presented in order to guarantee the asymptotic stability of the closed-loop system. Finally, a simulation example illustrates the efficiency of the proposed method.
- Subjects
FEEDBACK control systems; CONTROL theory (Engineering); LYAPUNOV functions; LINEAR matrix inequalities; STABILITY theory
- Publication
IMA Journal of Mathematical Control & Information, 2017, Vol 34, Issue 2, p683
- ISSN
0265-0754
- Publication type
Article
- DOI
10.1093/imamci/dnv069