A comparison of various strategies for direct torque control of induction motors

In this paper three new direct torque control strategies are compared with the classical direct torque control scheme. The considered new strategies are the following: direct torque control strategy with fuzzy logic regulators instead of hysteresis regulators, direct torque control strategy with hysteresis regulators associated with fuzzy logic regulators, and direct torque control strategy with fuzzy, hysteresis and space vector modulation respectively. A comparison analysis among the classical direct torque control strategy and the new ones, made by simulation in MATLAB/SIMULINK, a given.