Regular Papers
International Journal of Control, Automation and Systems 2019; 17(12): 3170-3178
Published online December 4, 2019
https://doi.org/10.1007/s12555-019-0270-7
© The International Journal of Control, Automation, and Systems
Robust Asymptotic Estimation of Sensor Faults for Continuous-time Interconnected Systems
This paper concerns the problem of robust asymptotic estimation of sensor faults for continuous-time interconnected systems. Firstly, an augmented singular interconnected system is constructed, which is equivalent to the original interconnected system. Then for the ingular system, the distributed fault estimation observer based on the correlation between subsystems is proposed to achieve a robust asymptotic estimation of sensor faults. Furthermore, the online fault estimator is designed to estimate unknown sensor faults in real time. Finally, the simulation results verify the feasibility and effectiveness of the proposed design techniques.
Keywords Fault diagnosis, fault estimation, interconnected systems, sensor faults
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Regular Papers
International Journal of Control, Automation and Systems 2019; 17(12): 3170-3178
Published online December 1, 2019 https://doi.org/10.1007/s12555-019-0270-7
Copyright © The International Journal of Control, Automation, and Systems.
Robust Asymptotic Estimation of Sensor Faults for Continuous-time Interconnected Systems
Jingping Xia, Bin Jiang*, and Ke Zhang
Nanjing University of Aeronautics and Astronautics
Abstract
This paper concerns the problem of robust asymptotic estimation of sensor faults for continuous-time interconnected systems. Firstly, an augmented singular interconnected system is constructed, which is equivalent to the original interconnected system. Then for the ingular system, the distributed fault estimation observer based on the correlation between subsystems is proposed to achieve a robust asymptotic estimation of sensor faults. Furthermore, the online fault estimator is designed to estimate unknown sensor faults in real time. Finally, the simulation results verify the feasibility and effectiveness of the proposed design techniques.
Keywords: Fault diagnosis, fault estimation, interconnected systems, sensor faults
Vol. 23, No. 3, pp. 683~972
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