A robust adaptive fuzzy control applied to disturbed uncertain MIMO systems

In this paper a robust adaptive fuzzy control for a class of disturbed uncertain multi-input multi-output systems is presented. Adaptive fuzzy systems are used to approximate the system. Effects of both the external disturbances and approximation errors are attenuated to a prescribed level using an H_∞ controller. The adaptation and the control laws are improved to guarantee the boundedness of the variables involved. The proposed approach combines the intelligence of the fuzzy logic and the efficiency of the H_∞ technique. A simulation example is presented to illustrate the tracking performances of this method.