Fault detection for switched linear systems with persistent dwell‐time constraint via adaptive memory event‐triggered approach

Abstract This paper develops an adaptive memory event‐triggered fault detection approach for a class of continuous‐time switched linear systems with persistent dwell‐time (PDT) switching. Unlike conventional dwell‐time or average dwell‐time switching signals, the more common PDT switching signal is considered, which can describe more switching behaviors of dynamic systems. We aim to design an event‐triggered based mode‐dependent fault detection filter, thereby enabling the augmented system that satisfies the desired nonweighted performance. Different from the existing event‐triggered fault detection mechanism, the proposed method has two advantages, that is, one is that it avoids long time without data transmission by designing the minimum real‐time transmission rate and the other one is that it can reduce the false triggering caused by unknown abrupt disturbance and measurement noise. Finally, the effectiveness of the proposed fault detection approach is verified by two examples including a switched RLC circuit.