اردشیر محمدزاده

In this paper, a novel control approach is pro-posed for a class of uncertain nonlinear system withunmodeled dynamics. Each output of the system is mod-eled by several first-order dynamic fractional-order fuzzysystems. The best dynamic model is selected at a period oftime and the control signal is designed based on this model.The dynamic fractional-order models are based on thespecial case of general type-2 fuzzy systems which arecalled interval type-3 fuzzy logic systems (IT3FLSs). Theadaptation laws for the consequent parameters of IT3FLSsare derived through stability analysis of the fractional-ordersystems based on the linear matrix inequality approach