GUARANTEED COST CONTROL FOR UNCERTAIN DISCRETE-TIME DELAYED SYSTEMS: A DELAY-DEPENDENT APPROACH

L. Zhang, Y. Chen, and P. Cui

Keywords

Guaranteed cost control, discrete-time systems, memory state feed-back, time-delay systems, linear matrix inequality

Abstract

This paper considers robust guaranteed cost control problem for uncertain linear discrete time-delay systems with state delays and a given quadratic cost function. By linear matrix inequality (LMI) approach, we obtain new delay-dependent sufficient conditions for the existence of a memory state feedback control law that includes current and delayed state information, and derive a parameterized characterization of the guaranteed cost controller. Furthermore, incorporating with a minimization problem can optimize the upper bound. A numerical example is given to show the potential of the proposed techniques.

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