5.1.2 Direct torque control with duty ratio fuzzy controller
After all the analysis, it focused on introducing a modulation in the DTC while fuzzy logic controller is in charge of controlling modulation between the active selected state and a null one.
Therefore it has been recommended and deeply explained the fuzzy logic controller with DTC to 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