A characterization of strong iISS for time-varying impulsive systems

HERNÁN HAIMOVICH; JOSÉ LUIS MANCILLA-AGUILAR; PAULA CARDONE

Bahía Blanca, Buenos Aires, Argentina

Congreso; 2019 XVIII Workshop on Information Processing and Control (RPIC); 2020

Universidad Nacional del Sur

For general time-varying or switched (nonlinear) systems, converse Lyapunov theorems for stability are not available. In these cases, the integral input-to-state stability (iISS) property is not equivalent to the existence of an iISS-Lyapunov function but can still be characterized as the combination of global uniform asymptotic stability under zero input (0-GUAS) and uniformly bounded energy input-bounded state (UBEBS). For impulsive systems, asymptotic stability can be weak (when the asymptotic decay depends only on elapsed time) or strong (when such a decay depends also on the number of impulses that occurred). This paper shows that the mentioned characterization of iISS remains valid for time-varying impulsive systems, provided that stability is understood in the strong sense.