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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (24): 328476-328476.doi: 10.7527/S1000-6893.2023.28476

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

Fast terminal sliding mode fault⁃tolerant control of hypersonic vehicle with guaranteed performance

Zhongsen WANG1, Yuxin LIAO2(), Caisheng WEI2, Ting DAI1   

  1. 1.Research Institute of Aerospace Technology,Central South University,Changsha 410083,China
    2.School of Automation,Central South University,Changsha 410083,China
  • Received:2023-01-05 Revised:2023-02-01 Accepted:2023-03-07 Online:2023-12-25 Published:2023-03-17
  • Contact: Yuxin LIAO E-mail:liaoyuxin@csu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(62003372);Natural Science Foundation of Hunan Province(2022JJ40633);Joint Fund of the Ministry of Education for Equipment Pre-research(8091B032134)

Abstract:

Aiming at the attitude control problem of hypersonic vehicle under the influence of model uncertainties, external disturbances and actuator faults, a non-singular fast terminal sliding mode fault-tolerant control method considering prescribed performance is proposed. Firstly, a fault-tolerant control model is established based on the attitude motion model and the actuator faults model, and the transient and steady-state performance of the attitude tracking error system is quantitatively designed by using the prescribed performance function. Secondly, a novel sliding mode disturbance observer is designed to accurately estimate the compound disturbances composed of model uncertainties, external disturbances and actuator faults. Then, a non-singular fast terminal sliding mode fault-tolerant controller is designed with the estimated value of the compound disturbances as compensation, and the stability of the closed-loop system is proved by the Lyapunov stability theory. Finally, simulation results show that the proposed method has good fault tolerance performance.

Key words: hypersonic flight vehicle, attitude fault-tolerant control, sliding mode disturbance observer, non-singular fast terminal sliding mode control, prescribed performance control

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