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Finite-time Dynamic Surface Fault-tolerant Control for Hypersonic Vehicle with Mismatched Disturbances

Peng Li, Peng Huang, Chen-Yu He, and Xiao-Qing Liu*
International Journal of Control, Automation, and Systems, vol. 19, no. 7, pp.2309-2322, 2021

Abstract : This paper studies the tracking control problem of hypersonic vehicle in the process of external disturbance, parameters uncertainties and actuator faults. Firstly, a non-triangular velocity and altitude nonlinear subsystem with mismatched disturbances and actuator faults are established based on the feedback linearization model. Secondly, adaptive dynamic surface fault-tolerant controllers are designed for velocity and altitude subsystems by combining nonlinear filter, adaptive control and back-stepping method. Finally, the Lyapunov stability theory and numercial simulation are carried out to verify the availability of the proposed control strategy.

Keyword : Actuator faults, finite-time control, hypersonic vehicle, mismatched disturbances.

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