Fault-Tolerant Control for a Class of Nonlinear Systems Based on Adaptive Observer
Abstract: This paper addresses
a fault-tolerant control scheme for a class of nonlinear systems based on the
adaptive fault diagnosis method. Considering the nonlinearity of systems
satisfies the Lipschitzcondition, the adaptive law is designed according to the
Lyapunov theory, and the proposed augmented adaptive observer can not only
endure the nonlinearity but also broaden the application scopes of general adaptive
observer. Then, a fault- tolerant controller is designed to compensate for the
effect of the faults and guarantees the closed-loop system stable. Finally, a
numeral example is presented to illustrate the effectiveness and feasibility of
the addressed approach.
Keywords: Nonlinear system,
Fault detection and diagnosis, Fault-tolerant control, Adaptive observer, Adaptive
law
Author: Zhang Dong-wen, Wang
Qiao-ling
Journal Code: jptkomputergg160095
