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Sakthivel, Rathinasamy,Santra, Srimanta,Marshal Anthoni, Selvaraj,Kuppili, Venkatanareshbabu THE INSTITUTION OF ENGINEERING AND TECHNOLOGY 2017 IET GENERATION TRANSMISSION AND DISTRIBUTION Vol.11 No.4
<P>This study addresses the design of sampled-data feedback L8 controller for synchronisation of chaotic systems with external disturbances. By employing a novel time-dependent Lyapunov function which is positive definite at sampling times but not necessary between the sampling times, a new set of sufficient conditions in terms of linear matrix inequality is derived to a design sampled-data L8 control for synchronisation. More precisely, the proposed synchronisation results depend on both the lower and upper bounds on sampling interval and also the available information of the actual sampling pattern is fully used. Further, based on the Lyapunov function, an asymptotic anti-synchronisation criterion is derived by analysing the corresponding anti-synchronisation error systems. Subsequently, a set of sampled-data synchronisation control is designed in terms of solution to certain matrix inequalities that can be solved effectively by using available software. Finally, a numerical example based on boost converter DC-DC model is employed to show the effectiveness of the proposed sampled-data L8 synchronisation and anti-synchronisation control scheme.</P>