Koru, A. T.Delibaşı, A.Özbay, Hitay2016-02-082016-02-0820140743-1546http://hdl.handle.net/11693/27485Date of Conference: 15-17 December 2014Conference Name: 53rd IEEE Conference on Decision and Control, IEEE 2014In this paper, we present a quasi-convex minimization method to calculate an upper bound of dwell-time for stability of switched delay systems. Piecewise Lyapunov-Krasovskii functionals are introduced and the upper bound for the derivative of Lyapunov functionals are estimated by free weighting matrices method to investigate non-switching stability of each candidate subsystems. Then, a sufficient condition for dwell-time is derived to guarantee the asymptotic stability of the switched delay system. Once these conditions are represented by a set of linear matrix inequalities (LMIs), dwell time optimization problem can be formulated as a standard quasi-convex optimization problem. Numerical examples are given to illustrate improvements over previously obtained dwell-time bounds.EnglishDwell time optimizationFree weighting matrices methodSwitched systemsTime delay systemsConference Paper10.1109/CDC.2014.7039688