TY - GEN
T1 - Fault-tolerant control based on back-stepping and fixed-time disturbance estimation for hypersonic reentry vehicles
AU - Wu, Tiancai
AU - Wang, Honglun
AU - Yu, Yue
AU - Li, Na
AU - Liu, Yiheng
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/11/27
Y1 - 2020/11/27
N2 - In this paper, a novel robust back-stepping fault- tolerant control scheme is proposed, which enables hypersonic reentry vehicles with model uncertainties to accurately track the attitude commands under the condition of both unknown actuator faults and external disturbances. Firstly, a control-oriented hypersonic reentry vehicle model is established on the basis of regarding three factors mentioned above as lumped disturbance. Then, a fixed-time observer is used to achieve the fixed-time lumped disturbance estimation. Based on the disturbance observer and back-stepping technology, the proposed fault-tolerant control laws are designed to ensure control performance. Meanwhile, the 'differential explosion' problem is solved by the sigmoid function-based tracking differentiator. Finally, the stability and effectiveness of the proposed controller are verified from theoretical analysis and extensive numerical simulations respectively.
AB - In this paper, a novel robust back-stepping fault- tolerant control scheme is proposed, which enables hypersonic reentry vehicles with model uncertainties to accurately track the attitude commands under the condition of both unknown actuator faults and external disturbances. Firstly, a control-oriented hypersonic reentry vehicle model is established on the basis of regarding three factors mentioned above as lumped disturbance. Then, a fixed-time observer is used to achieve the fixed-time lumped disturbance estimation. Based on the disturbance observer and back-stepping technology, the proposed fault-tolerant control laws are designed to ensure control performance. Meanwhile, the 'differential explosion' problem is solved by the sigmoid function-based tracking differentiator. Finally, the stability and effectiveness of the proposed controller are verified from theoretical analysis and extensive numerical simulations respectively.
KW - Attitude tracking issue
KW - Fault-tolerant control
KW - Fixed-time estimation issue
KW - Hypersonic reentry vehicles
UR - https://www.scopus.com/pages/publications/85098972506
U2 - 10.1109/ICUS50048.2020.9274916
DO - 10.1109/ICUS50048.2020.9274916
M3 - 会议稿件
AN - SCOPUS:85098972506
T3 - Proceedings of 2020 3rd International Conference on Unmanned Systems, ICUS 2020
SP - 50
EP - 55
BT - Proceedings of 2020 3rd International Conference on Unmanned Systems, ICUS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd International Conference on Unmanned Systems, ICUS 2020
Y2 - 27 November 2020 through 28 November 2020
ER -