An H∞ Memorized Input-dependent Event-triggered Control Scheme for Networked Control System

For a networked control system (NCS), this paper proposes the H ∞ memorized input-dependent event-triggered control scheme (MIDETS) for discrete-time systems. The proposed MIDETS utilizes not only the current system output but also the triggered system inputs to ensure the stability of the closed-lo...

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Bibliographic Details
Published in:International journal of control, automation, and systems 2024, Automation, and Systems, 22(11), , pp.3396-3408
Main Authors: Lee, Hyoung-woong, Kwon, Wookyong, Park, JunMin, Han, Soohee
Format: Article
Language:English
Subjects:
Control
Engineering
Mechatronics
Regular Papers
Robotics
제어계측공학
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Summary:For a networked control system (NCS), this paper proposes the H ∞ memorized input-dependent event-triggered control scheme (MIDETS) for discrete-time systems. The proposed MIDETS utilizes not only the current system output but also the triggered system inputs to ensure the stability of the closed-loop system and guarantee H ∞ performance for disturbances. Incorporating the triggered system inputs makes configuring the MIDETS more intuitive and significantly improves robustness to transmission delay and H ∞ performance compared to conventional output event-triggered control schemes. A closed-loop system with the MIDETS is transformed into an input-delayed and augmented output feedback system, and the resulting H ∞ control problem is formulated using linear matrix inequalities (LMIs). Numerical examples demonstrate that the proposed MIDETS enhances robustness to transmission delay and improves H ∞ performance for discrete-time systems employing a sample-and-hold strategy.
ISSN:1598-6446
2005-4092
DOI:10.1007/s12555-024-0441-z