Journal
IEEE TRANSACTIONS ON FUZZY SYSTEMS
Volume 29, Issue 12, Pages 3734-3742Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TFUZZ.2020.3026028
Keywords
Event-triggered scheme; fault detection; fuzzy systems; zonotopes
Funding
- National Science Foundation of China [61873310, 61873311, 61790564]
- Heilongjiang Science Foundation [F2018015]
- 111 Project [B16014]
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This article discusses zonotopic fault detection for fuzzy systems with event-triggered mechanism, proposing an l(1)/h(infinity) fault detector design method and constructing a zonotopic residual evaluation process. Different from most existing works, zonotopic thresholds for residual signal are designed by considering the influences of disturbance, noise, asynchronous premise variables, and event-based transmission. The effective performance of the developed strategy is verified through a numerical example.
This article deals with the zonotopic fault detection for fuzzy systems with event-triggered mechanism. An l(1)/h(infinity) fault detector design method is deduced with considering the asynchronous premise variables caused by event-triggered transmission, such that the residual signal is sensitive to system failure while robust to amplitude-bounded disturbance, and noise. Then, a novel zonotopic residual evaluation process is constructed by converting the asynchronization of premise variables into system uncertainties. Different from most published works on event-triggered fault detection where constant thresholds are utilized for residual evaluation, zonotopic thresholds for residual signal are designed with taking the influences of disturbance, noise, asynchronous premise variables, and event-based transmission into consideration. Finally, a numerical example is utilized to verify the effective performance of the developed strategy.
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