Finite-time adaptive fault-tolerant control for strict-feedback nonlinear systems

Abstract

In this paper, we design an adaptive fault-tolerant control for a class of strict-feedback nonlinear system to address tracking control problem in the finite-time. Fuzzy logic systems are applied to deal with the unknown nonlinear faults, and the traditional adaptive control and backstepping technique are combined to design controller. It is indicated that the presented controller ensures that the tracking error converges to a small area around the origin and all signals within the closed-loop system remain bounded. The simulation results are supplied to prove the availability of the presented controller.