Fuzzy logic control contribution to the direct torque and flux control of an induction machine

This paper presents a control strategy of an induction machine supplied by voltage-source inverter (VSI). The induction machine with the control strategy should provide, at the constraining requests, a response with high performances in electromagnetic torque and speed. This work aims to demonstrate the contribution of Fuzzy logic in the direct torque and flux control (DTFC). In fact, the conventional hysteresis comparators and IP speed controller have been replaced with two Fuzzy Logic Controllers (FLC), giving rise to a Fuzzy direct torque and flux control (FDTFC). Using MATLAB/SIMULINK software environment, simulations have been made to illustrate the performances of the presented control strategy.