Abstract:

      We design an observer-based fault detection filter that serves as a residual generator. We regard the design of fault detection filter as H_∞ filtering. We further present the sufficient condition that guarantees the existence of the H_∞ fault detection filter of a singular time-delay system with Lyapunov-Krasovskii. A linear matrix inequality is applied to the solution of the problem.

Key words: singular time-delay system, fault detection, H&infin, filtering, linear matrix inequality