Incipient Fault Detection for Time‐Delayed Systems Under Dynamic Event‐Triggered Mechanism

ABSTRACT This article investigates the problem of incipient fault detection for time‐delayed systems with stochastic noise. For the sake of reducing the communication and computing cost, the dynamic event‐triggered mechanism (DETM) is employed. Based on the lifting method and the nonuniform sampling method, the time‐delayed system under the DETM is transformed to a time‐varying system. Then, a novel incipient fault detection algorithm is designed, and the fault detectability is analyzed in a probabilistic sense, which effectively reduces the missed detection rate under a given false alarm rate. Finally, two examples are given to show the availability of the designed method.