Title: Modelling and simulation of sensor fault-tolerant networked control system with uncertainties
Authors: Yanpeng Wu; Ying Wu
Addresses: School of Information and Control Engineering, Xi'an University of Architecture and Technology, No. 13, Yan Ta Road, Xi'an, China ' School of Computer Science, Xi'an Shiyou University, No.18, 2nd East Dianzi Road, Xi'an, China
Abstract: This paper investigates the problem of fault-tolerant control against sensor failures for a class of uncertain networked control system with random time delays. A novel fault-tolerant control scheme against sensor faults with consideration of both time delays and norm-bounded uncertainties is proposed to stabilise the target fault system. A complete fault model of sensors is developed with the objective to represent the type and degree of sensor faults in an integrated parameterised way in plant model. By employing multiple parameter-dependent Lyapunov-Krasovskii functions, sufficient conditions of system stabilisation and robust fault mode dependent controllers are derived. The simulation results show the effectiveness of the proposed method.
Keywords: sensor failure; fault-tolerant control; uncertainties; time delay; LMIs; linear matrix inequalities.
International Journal of Computer Applications in Technology, 2017 Vol.56 No.3, pp.210 - 218
Received: 14 Nov 2016
Accepted: 03 Jan 2017
Published online: 28 Oct 2017 *