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Yanhui Li
Northeast Petroleum University

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Observer-based state feedback H-infinity control for networked control systems Yanhui Li; Xiujie Zhou
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 8: August 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i8.pp6144-6152

Abstract

The observer-based H-infinity controller design problem is considered for the networked control systems with uncertain network-induced delays and packet dropouts. The system states are reconstructed by introducing an observer and an augmented system model with time-varying delays is established. Based on the delay-dependent Lyapunov stability theory, a sufficient condition is proposed to ensure that the closed-loop system is asymptotically stable with a guaranteed H-infinity performance level r. Since the obtained condition is nonlinear, the singular value decomposition method is applied to convert the nonlinear inequalities into LMIs. The delay-dependent approach shows a less conservative result than the delay-independent approach. A numerical example is given to demonstrate the high validity and merit of the proposed approach.
Co-Authors Xiujie Zhou