Type-2 Fuzzy System and Observer Based Controller for Non-Linear System

This paper presents the nonlinear system with time delay. For such nonlinear system, robust control problem is designed. Takagi-Sugeno (T-S) fuzzy models can give a proper analysis of nonlinear systems with time delay. The Type-2 T-S fuzzy model approach is extended to achieve temperature control in continuous time nonlinear systems with time delay. Also disturbance tracking response is checked by using Type-2 Fuzzy DOB technique under internal as well as external disturbances.