Abstract
This paper studies the problem of fault estimation (FE) and fault tolerant control (FTC) for a class of Takagi-Sugeno (T-S) fuzzy system with interval time-varying delay. We design an adaptive observer-based controller to obtain the estimation of fault, and while guaranteeing the filtering error system to be asymptotically stable, then, based on the information of online fault estimation, a dynamic output feedback fault tolerant controller to compensate the effect of faults. On the other hand, we construct a new Lyapunov functional including the information of the lower and upper delay bounds, compared with the time-varying delay, the interval time-varying delay is the less conservative form. Finally, simulation result is given to verify the effectiveness of the proposed methods.
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