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Article

Towards Simultaneous Actuator and Sensor Faults Estimation for a Class of Takagi-Sugeno Fuzzy Systems: A Twin-Rotor System Application

Institute of Control and Computation Engineering, University of Zielona Góra, ul. Szafrana 2, 65-516 Zielona Góra, Poland
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Sensors 2020, 20(12), 3486; https://doi.org/10.3390/s20123486
Received: 6 May 2020 / Revised: 12 June 2020 / Accepted: 17 June 2020 / Published: 19 June 2020
(This article belongs to the Special Issue Sensors Fault Diagnosis Trends and Applications)
The paper is devoted to the problem of estimating simultaneously states, as well as actuator and sensor faults for Takagi–Sugeno systems. The proposed scheme is intended to cope with multiple sensor and actuator faults. To achieve such a goal, the original Takagi–Sugeno system is transformed into a descriptor one containing all state and fault variables within an extended state vector. Moreover, to facilitate the overall design procedure an auxiliary fault vector is introduced. In comparison to the approaches proposed in the literature, a usual restrictive assumption concerning fixed fault rate of change is removed. Finally, the robust convergence of the whole observer is guaranteed by the so-called quadratic boundedness approach which assumes that process and measurement uncertainties are unknown but bounded within an ellipsoid. The last part of the paper portrays an exemplary application concerning a nonlinear twin-rotor system. View Full-Text
Keywords: fault detection and diagnosis; faults estimation; actuator and sensor fault; observer design; Takagi-Sugeno fuzzy systems fault detection and diagnosis; faults estimation; actuator and sensor fault; observer design; Takagi-Sugeno fuzzy systems
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MDPI and ACS Style

Pazera, M.; Witczak, M.; Kukurowski, N.; Buciakowski, M. Towards Simultaneous Actuator and Sensor Faults Estimation for a Class of Takagi-Sugeno Fuzzy Systems: A Twin-Rotor System Application. Sensors 2020, 20, 3486. https://doi.org/10.3390/s20123486

AMA Style

Pazera M, Witczak M, Kukurowski N, Buciakowski M. Towards Simultaneous Actuator and Sensor Faults Estimation for a Class of Takagi-Sugeno Fuzzy Systems: A Twin-Rotor System Application. Sensors. 2020; 20(12):3486. https://doi.org/10.3390/s20123486

Chicago/Turabian Style

Pazera, Marcin, Marcin Witczak, Norbert Kukurowski, and Mariusz Buciakowski. 2020. "Towards Simultaneous Actuator and Sensor Faults Estimation for a Class of Takagi-Sugeno Fuzzy Systems: A Twin-Rotor System Application" Sensors 20, no. 12: 3486. https://doi.org/10.3390/s20123486

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