Nonsingular Terminal Sliding Mode Adaptive Fuzzy Type 2 Control Based on Extended State Observer

In this paper, we present the fuzzy adaptive control Type-2-interval by non-singular terminal sliding mode based on an extended state observer. First, we present the theory of interval type-2 Fuzzy Logic systems wich is recently used in modeling nonlinear process. We propose an efficient and simplified method based on non-singular terminal sliding mode to compute the control signal which ensures both the stability of the system and the convergence of errors in a finite time. Since in most industrial processes the system states are not all accessible to measurement so an extended state observer is introduced. We also propose a method for designing an extended state observer. The convergence of the observer was made in the sense of Lyapunov. A simulation example was carried out to demonstrate the efficiency of the proposed method.