After all the simulation, this work focused on introducing a modulation in the DTC. A fuzzy logic controller is in charge of controlling this modulation between the selected active state and a null one.
Therefore it has been suggested and deeply described the fuzzy logic controller, which together with the DTC will create the fuzzy logic DTC. The theoretical claim that duty ratio control can reduce torque ripple in DTC control gave acceptable results and reduces the computation burden by skipping unnecessary complex mathematical modeling of the nonlinear systems. By using duty ratio control, a particular motor performance can be achieved at a lower switching frequency compared to the ordinary DTC, which in turn improves the performance of the drive by minimizing the flux harmonics