Title: Robust stability and stabilisation of uncertain networked flight control system with random time delays

Authors: Yanpeng Wu; Xinmin Wang; Ying Wu

Addresses: Department of Automation, Northwestern Polytechnical University, Chang An-710129, Xi'An, China ' Department of Automation, Northwestern Polytechnical University, Chang An-710129, Xi'An, China ' Department of Automation, Northwestern Polytechnical University, Chang An-710129, Xi'An, China

Abstract: The use of avionics networks for flight control system has reduced aircraft weight, system installation, integration and maintenance costs as well as introduced time delays and structured uncertainties. This paper studies the robust stability and stabilisation problem of uncertain networked flight control system with random time delays. Some new sufficient criteria with simple mathematical forms for robust stability and stabilisation of networked flight control system are derived by a free weighting matrix approach. A memoryless state feedback robust controller and the maximum bound of time delay are obtained based on the solution of linear matrix inequalities (LMIs) which are established by the Lyapunov-Krasovskii stability theory. Numerical examples are given to illustrate the effectiveness of design procedure.

Keywords: networked flight control systems; NFCSs; time delays; robust control; structured uncertainties; linear matrix inequalities; LMIs; robust stability; stabilisation; avionics networks; free weighting matrix; robust control; controller design; aircraft control.

DOI: 10.1504/IJMIC.2014.062028

International Journal of Modelling, Identification and Control, 2014 Vol.21 No.4, pp.411 - 417

Available online: 29 May 2014 *

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