  The induction motors have wide range of applications for due to its
well-known advantages like brushless structures, low costs and robust
performances. Over the past years, many kind of control methods are proposed
for the induction motors and direct torque control has gained huge importance
inside of them due to fast dynamic torque responses and simple control
structures. However, the direct torque control method has still some handicaps
against the other control methods and most of the important of these handicaps
is high torque ripple. This paper suggests a new approach, Fuzzy logic based
space vector modulation, on the direct torque controlled induction motors and
aim of the approach is to overcome high torque ripple disadvantages of
conventional direct torque control. In order to test and compare the proposed
direct torque control method with conventional direct torque control method
simulations, in Matlab/Simulink,have been carried out in different working
conditions. The simulation results showed that a significant improvement in the
dynamic torque and speed responses when compared to the conventional direct
torque control method.
