Journal
IEEE TRANSACTIONS ON CYBERNETICS
Volume 53, Issue 2, Pages 743-752Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCYB.2022.3155755
Keywords
Fuzzy systems; Adaptive systems; Nonlinear systems; Control systems; Adaptation models; Noise measurement; Fault detection; Fault detection (FD); interval type-2 (IT2) T-S fuzzy system; memory-event-triggered mechanism (METM)
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This article investigates the networked fault detection problem for interval type-2 T-S fuzzy systems and proposes a novel adaptive memory-event-triggered mechanism (METM) to reduce the data releasing rate and avoid maltriggering events.
In this article, a networked fault detection (FD) problem is investigated for interval type-2 T-S fuzzy systems. A novel adaptive memory-event-triggered mechanism (METM) is proposed by introducing historical information of the measured output in a prescribed sliding window. The current measured output in the traditional event-triggered mechanism is replaced by a weighting function-based historical information. As a result, the data releasing rate can be effectively reduced and maltriggering events aroused by unknown abrupt disturbance or measurement noise can be avoided as well. Meanwhile, an adaptive threshold depending on the historical information is utilized to further adjust the data releasing rate. The FD filter is designed and derived in terms of linear matrix inequalities to guarantee the $H_{infinity}$ performance of fault detected systems. Finally, a hardware-in-loop simulation experiment platform is built to manifest the effectiveness of the proposed METM-based FD method.
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