Version 1
: Received: 16 July 2021 / Approved: 21 July 2021 / Online: 21 July 2021 (15:14:06 CEST)
How to cite:
Zhang, Y.; Nie, Y.; Dong, Z.; Chen, L. Adaptive Fuzzy Fault-Tolerant Control against Time-Varying Faults via a New Sliding Mode Observer Method. Preprints2021, 2021070498. https://doi.org/10.20944/preprints202107.0498.v1
Zhang, Y.; Nie, Y.; Dong, Z.; Chen, L. Adaptive Fuzzy Fault-Tolerant Control against Time-Varying Faults via a New Sliding Mode Observer Method. Preprints 2021, 2021070498. https://doi.org/10.20944/preprints202107.0498.v1
Zhang, Y.; Nie, Y.; Dong, Z.; Chen, L. Adaptive Fuzzy Fault-Tolerant Control against Time-Varying Faults via a New Sliding Mode Observer Method. Preprints2021, 2021070498. https://doi.org/10.20944/preprints202107.0498.v1
APA Style
Zhang, Y., Nie, Y., Dong, Z., & Chen, L. (2021). Adaptive Fuzzy Fault-Tolerant Control against Time-Varying Faults via a New Sliding Mode Observer Method. Preprints. https://doi.org/10.20944/preprints202107.0498.v1
Chicago/Turabian Style
Zhang, Y., Zhiyuan Dong and Liheng Chen. 2021 "Adaptive Fuzzy Fault-Tolerant Control against Time-Varying Faults via a New Sliding Mode Observer Method" Preprints. https://doi.org/10.20944/preprints202107.0498.v1
Abstract
In this paper, the problem of observer-based adaptive sliding mode control is discussed for nonlinear systems with sensor and actuator faults. The time-varying actuator degradation factor and external disturbance are considered in the system simultaneously. In this study, the original system is described as a new normal system by combining the state vector, sensor faults and external disturbance into a new state vector. For the augmented system, a new sliding mode observer is designed, where a discontinuous term is introduced such that the effects of sensor and actuator faults and external disturbance will be eliminated. In addition, based on a tricky design of the observer, the time-varying actuator degradation factor term is developed in the error system. On the basis of the state estimation, an integral-type adaptive fuzzy sliding mode controller is constructed to ensure the stability of the closed-loop system. Finally, the effectiveness of the proposed control methods can be illustrated with a numerical example.
Computer Science and Mathematics, Algebra and Number Theory
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
