V. EXPERIMENTAL RESULTS AND CONCLUSIONS
In DTC method it is possible to control directly stator flux and
torque by selecting appropriate inverter state. It also provides
indirect control of stator voltages and current. DTC method is
advantageous in the sense that it has minimal torque response
time. DTC method however yields slow response during start
up and change in either direction of flux and torque. So to
overcome these drawbacks, fuzzy logic is applied to DTC
method. By using fuzzy logic, it is possible it is possible to
perform a fuzzy logic based Duty Ration Control where
optimum duty ratio is selected for each switching time[10].
The output of program when run for one set of data has been
shown below.