: A comparative study between type-1 and type-2 fuzzy systems, introducing the main differences in membership functions and operations done on these fuzzy sets, as well as defuzzification/type-reduction, is introduced in this paper. Fuzzy sets with view of membership functions of type-1 and type-2 are illustrated along with the foot print of uncertainty (FOU). A hyper-fuzzy controller is proposed which regulates the speed with minimum steady-state error for a field-oriented PWM inverter of induction motor. It showed ...