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Fuzzy adaptive robust fault-tolerant control for SISO uncertain nonlinear systems via backstepping

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2 Author(s)
Shaocheng Tong ; Dept. of Math. & Phys., Liaoning Univ. of Technol., Jinzhou ; Lijie Ren

In this paper, we have developed an adaptive fuzzy fault tolerant control approach for a class of perturbed and strict feedback nonlinear systems with actuators faults. Based on the idea of a corrective control law which activated in the presence of a fault, fuzzy logic systems are used to learn the unknown dynamics and the unknown fault functions on-line and provide the fault tolerant control law. Combining the fuzzy adaptive control and the backstepping design techniques, a robust fuzzy adaptive fault control approach is developed and the closed-loop stability of the proposed fault tolerant control scheme is rigorously proved using Lyapunov theory and illustrated based on a simulation example.

Published in:

Control and Decision Conference, 2008. CCDC 2008. Chinese

Date of Conference:

2-4 July 2008