Journal article

Active fault detection based on set-membership approach for uncertain discrete-time systems

Jing Wang, Yuru Shi, Meng Zhou, Ye Wang, Vicenc Puig

International Journal of Robust and Nonlinear Control | Wiley | Published : 2020

Abstract

Active fault detection facilitates determination of the fault characteristics by injecting proper auxiliary input signals into the system. This article proposes an observer‐based on‐line active fault detection method for discrete‐time systems with bounded uncertainties. First, the output including disturbances, measurement noise and interval uncertainties at each sample time is enclosed in a zonotope. In order to reduce the conservativeness in the fault detection process, a zonotopic observer is designed to estimate the system states allowing to generate the output zonotopes. Then, a proper auxiliary input signal is designed to separate the output zonotopes of the faulty model from the healt..

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Grants

Awarded by Research foundation for talents of NCUT


Awarded by National Natural Science Foundation of China


Awarded by Fundamental Research Funds for the Central Universities


Funding Acknowledgements

Research foundation for talents of NCUT, Grant/Award Numbers: 213051360020XN173/017, 110051360020XN092; National Natural Science Foundation of China, Grant/Award Numbers: 51805021, 61973023, 61573050; the Fundamental Research Funds for the Central Universities, Grant/Award Number: XK1802-4