Quantized fixed-time fault-tolerant attitude control for hypersonic reentry vehicles

A quantized fixed-time fault-tolerant attitude control problem for hypersonic reentry vehicles is considered from the perspective of practical engineering. Taking into account the limited time available for recovery from a fault scenario, fixed-time extended state observers are used to simultaneousl...

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Vydané v:Applied Mathematical Modelling Ročník 98; s. 143
Hlavní autori: Wu, Tiancai, Wang, Honglun, Yu, Yue, Liu, Yiheng, Wu, Jianfa
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York Elsevier BV 01.10.2021
Predmet:
Actuators
Attitude control
Convergence
Fault tolerance
Hypersonic reentry
Measurement
Reentry
Reentry vehicles
Robust control
Signal processing
Stability analysis
State observers
Tracking errors
ISSN:1088-8691, 0307-904X
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Shrnutí:A quantized fixed-time fault-tolerant attitude control problem for hypersonic reentry vehicles is considered from the perspective of practical engineering. Taking into account the limited time available for recovery from a fault scenario, fixed-time extended state observers are used to simultaneously compensate for the negative effect of unknown time-varying actuator faults, uncertainties, and external disturbances. In contrast to the existing control schemes, which neglect the signal quantization transmission process and limited communication capacity, the hysteresis quantization mechanism is considered. Based on this, a fixed-time fault-tolerant control scheme is developed to ensure the fixed time convergence of all the tracking errors even in cases involving actuator faults. The stability and convergence are proven by performing a theoretical analysis. The simulation results validate the superiority and robustness of the proposed control scheme.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:1088-8691
0307-904X
DOI:10.1016/j.apm.2021.04.033