Table 4.1 simulated data for torque error.
TORQUE ERROR (Nm) WITHDIRECT TORQUE CONTROL TORQUE ERROR (Nm) WITH FUZZY TIME (S)
0 0 0
0.2 0.025 1
0.15 0.018 2
0.16 0.02 3
0.15 0.0195 4
0.15 0.0195 10
Figure 4.1 Result for torque error using DTC and fuzzy logic with duty ratio.
Form the graph, the data in the table were used. The torque behavior of the motor using ordinary DTC and fuzzy logic with duty ratio control for a torque command of 0.15Nm with the output drive updated at a rate of 5kHz were used. The flux ripple regained was 0.05wb (0.2-0.15)N-m greater and lesser values
with the only DTC while infuzzy logic with duty ratio control, the ripple was reduced further to 0.0055Nm(0.025-0.00195)Nm greaterand lesser value, assumed under shoot in the torque value at the starting point of each voltage