Finite Frequency Fault Detection for Discrete Descriptor Systems Based on Event-Triggering Mechanism and Zonotopic Residual Evaluation

In this paper, a new event-triggered fault detection (FD) method is proposed for discrete descriptor systems. Firstly, the event-triggering mechanism is designed to reduce the communication burden. Then, the attenuation of the residual against disturbances and the sensitivity of the residual to faults are improved by utilizing H
∞
performance and finite frequency H
-
performance. The filter gain matrices and event-triggering parameters are obtained by solving the optimization problem. Furthermore, compared with the full frequency FD scheme, the proposed method is able to improve the FD performance. Finally, a simulation example verifies the effectiveness of the proposed method.