Local stabilization for T-S fuzzy systems by a sensor fault compensation mechanism

In this paper, the problem of the local stabilization for T-S fuzzy systems with sensor fault is studied. First, an unknown input observer (UIO) is designed to estimate the sensor fault of T-S fuzzy system. By virtue of the fault information provided by UIO, the scheme of local stabilization with the compensation mechanism of sensor fault is developed. Different from the conventional strategy of local stabilization, the sensor fault can be compensated in the premise part of the controller such that the design can be relaxed. Finally, the efficacy of the presented method is demonstrated by an example with respect to the system of unmanned marine vehicles.