Diagnostic Observer-based Fault Detection Approach for T-S Fuzzy Systems

The main attention of this paper is paid on the design scheme of diagnostic observer-based fault detection unit for fuzzy processes. By addressing the robustness issues against disturbances in the ${\mathcal{L}_\infty }/{\mathcal{L}_2}$ framework, a real-time fault detection can be achieved via fuzzy Lyapnov functions. A dynamic threshold is developed to meet with real-time fault detection requirement. An example is given to demonstrate the fault detection approach.

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