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