Modeling and H-infinity control of wireless networked control system with both delay and packet loss

摘要

This paper investigates the H-infinity control problem for a class of wireless networked control system (NCS). Both time delays and packet losses are considered simultaneously in the wireless communication networks. Under some assumptions, a switched system model with time-varying delays is established to describe the closed-loop system, by which the effect of packet losses is dealt differently from time delays. Based on the obtained model, a sufficient condition is proposed to guarantee the closed-loop system stable and ensure a prescribed H-infinity performance level. Examples illustrate the effectiveness of the proposed approach. (C) 2015 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.