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Robust Fault Detection for Switched Fuzzy Systems With Unknown Input


Abstract:

This paper investigates the fault detection problem for a class of switched nonlinear systems in the T-S fuzzy framework. The unknown input is considered in the systems. ...Show More

Abstract:

This paper investigates the fault detection problem for a class of switched nonlinear systems in the T-S fuzzy framework. The unknown input is considered in the systems. A novel fault detection unknown input observer design method is proposed. Based on the proposed observer, the unknown input can be removed from the fault detection residual. The weighted H performance level is considered to ensure the robustness. In addition, the weighted H_ performance level is introduced, which can increase the sensibility of the proposed detection method. To verify the proposed scheme, a numerical simulation example and an electromechanical system simulation example are provided at the end of this paper.
Published in: IEEE Transactions on Cybernetics ( Volume: 48, Issue: 11, November 2018)
Page(s): 3056 - 3066
Date of Publication: 03 October 2017

ISSN Information:

PubMed ID: 28981437

Funding Agency:


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