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Adaptive Control for Hypersonic Vehicles With Time-Varying Faults | IEEE Journals & Magazine | IEEE Xplore

Adaptive Control for Hypersonic Vehicles With Time-Varying Faults


Abstract:

In this paper, a novel adaptive fault-tolerant control (FTC) scheme is proposed for a class of hypersonic flight vehicles (HFVs) with input constraints and unknown inerti...Show More

Abstract:

In this paper, a novel adaptive fault-tolerant control (FTC) scheme is proposed for a class of hypersonic flight vehicles (HFVs) with input constraints and unknown inertial and aerodynamic parameters. As an advantage beyond existing adaptive FTC schemes for HFVs, we investigate a more practical and more challenging case that both the elevator and the throttle may suffer from unknown and time-varying faults. By introducing some smooth functions and a linear time-varying model and estimating the bounds of those time-varying uncertainties, the impact of the faults and the input constraints is effectively compensated for and stable altitude and velocity tracking is successfully achieved. Besides, with the aid of the dynamic surface control technique, the proposed scheme is free of the problem of explosion of complexity inherent in traditional backstepping design. Such features result in a simple flight control scheme that can be easily implemented with less computational burden and higher reliability. Simulation results are presented to illustrate the effectiveness of the proposed scheme.
Published in: IEEE Transactions on Aerospace and Electronic Systems ( Volume: 54, Issue: 3, June 2018)
Page(s): 1442 - 1455
Date of Publication: 15 January 2018

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