Robust H∞ fault-tolerant control based on T-S model of double time-varying delay uncertain system
In order to solve robust fault-tolerant control problem of the system containing actuator partial or complete failure of the fault cases, according to a class of state and control input both existence of time-varying delay uncertain nonlinear system, this paper adopted T-S fuzzy model to describe, designed fuzzy state feedback controller using the parallel distributed compensation (PDC) algorithm, researched robust H∞ fault-tolerant control problems, when the system contained actuator partial or completed failure cases.And it combined the Lyapunov stability theory was given the sufficient condition to ensure that the fuzzy fault-tolerant control system was asymptotically stable, not only to ensure that the system robust stability of the system output, but also to meet the given robust H∞ performance index.At last, by MATLAB simulation to compare with the system have external disturbance and there is no external interference system outputs curves, the result shows that the method is feasible.
robustfault-tolerantT-S modelfuzzy controllerdouble time-varying delaynonlinear system
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