Distributed Fault Detection for Dynamic Systems Based on H̲/H∞Indices

Abstract

With the help of the sensor networks, this paper mainly develops a model-based distributed fault detection method for dynamic systems. Specifically, each sensor node is equipped with a Luenberger observer and a post-filter for residual generation. It is worth mentioning that, the post-filter is designed to improve detection performance through the $H_{-}/H_{\infty}$ indices. Moreover, the design parameters are dependent on the linear matrix inequality. Finally, a numerical example is introduced to verify the accuracy and effectiveness of the proposed distributed approach.