Robust Fault-Tolerant Tracking Control Scheme for Nonlinear Nonaffine-In-Control Systems Against Actuator Faults

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Abstract: In this paper a theoretical framework of robust fault-tolerant control (FTC) for a class of nonlinear nonaffine-in-control systems is developed. In the framework, an observer-like auxiliary system is designed via adaptive and sliding mode techniques, which is only required to ensure that the output of the auxiliary system asymptotic tracking plant output. Based on the auxiliary system, a reconfigurable fault-tolerant tracking controller is proposed for nonaffine-in-control systems. In this paper, the focus is on the accommodation of the actuator faults and resulting disturbances. It is shown that the proposed FTC design results in asymptotic convergence of the tracking error to zero. Finally, the proposed approach is verified using a three-degree-of-freedom simulation of a typical fighter aircraft and the significantly improved system response demonstrates the practical potential of the theoretic results obtained.

WSEAS Transactions on Systems and Control, ISSN / E-ISSN: 1991-8763 / 2224-2856, Volume 10, 2015, Art. #5

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Hongcheng Zhou, Dezhi Xu, "Robust Fault-Tolerant Tracking Control Scheme for Nonlinear Nonaffine-In-Control Systems Against Actuator Faults," WSEAS Transactions on Systems and Control, vol. 10, pp. 29-37, 2015, DOI:
Hongcheng Zhou, Dezhi Xu. Robust Fault-Tolerant Tracking Control Scheme for Nonlinear Nonaffine-In-Control Systems Against Actuator Faults. WSEAS Transactions on Systems and Control. 2015;10:29-37.
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