access icon free Communication channel sharing-based network-induced delay and packet dropout compensation for networked control systems

© The Institution of Engineering and Technology
Received 12/02/2012, Accepted 16/12/2012, Revised 26/10/2012, Published

This study is concerned with the problem of dual communication channels sharing-based network-induced delay and packet dropout compensation for continuous-time networked control systems (NCSs). By introducing the dual communication channels sharing-based compensation method, a new closed-loop model for continuous-time NCSs, which can receive more than one control input during a control input updating time interval, is established. Based on the newly established model and a new Lyapunov functional, an effective controller design criterion is derived to optimise the H ∞ performance of the considered systems. Even for NCSs without considering network-induced delay and packet dropout compensation, the newly derived controller design method is also applicable. Two numerical examples are given to illustrate the merits and effectiveness of the proposed compensation method.

Inspec keywords: H∞ optimisation; networked control systems; closed loop systems; delays; continuous time systems; H∞ optimisation; control system synthesis; Lyapunov methods; compensation

Other keywords: packet dropout compensation; closed loop model; continuous-time NCS; dual communication channels sharing-based network-induced delay; continuous-time networked control systems; Lyapunov functional model; controller design method; H∞ performance optimisation; H∞ performance optimisation; controller design criterion

Subjects: Control system analysis and synthesis methods; Optimisation techniques; Stability in control theory; Distributed parameter control systems; Optimal control

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