Observer-Based Non-Fragile Passive Control for Uncertain Nonlinear Sampled-Data System with Time-Delay

Shigang Wang, Yingsong Li, Yi Wu


The problem of observer-based passive control for uncertain nonlinear
sampled-data systems with time delay is investigated by using non-fragile passive
control. Attention is focused on the design of a non-fragile passive observer and a
controller which guarantees the passivity of the closed-loop system for all admissible
uncertainties. A sufficient condition for passivity and asymptotic stability of the
combined system is derived via linear matrix inequality (LMI). Finally, a simulation
example is presented to show the validity and advantages of the proposed method.


Uncertain sampled-data system, Time-delay systems, State observer, Non-fragile passive control, Linear matrix inequality

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