Table 4.2 Simulated data for flux linkage error experiment
ERROR IN FLUX LINKAGE (Wb) WITH DTC ERROR IN FLUX LINKAGE (Wb) WITH FUZZY TIME
0 0 0
18 2.4 1
12 1.5 2
14 1.7 3
13.33 1.733 4
13.33 1.733 10
Figure 4.2 Simulated result for flux linkage error using DTC and fuzzy logic with duty ratio.
In the analysis, the data in table above were used. The flux behaviour of the motor using only DTC and fuzzy logic with duty ratio control for a step torque command of 2.4Wb with the drive output updated at a rate of 5kHz were used, the flux ripple generated was 4.67Wb (18-13.33)Wb greater and lesser values with the only DTC while fuzzy logic with duty ratio control the ripple is reduced to 0.667Wb (2.4-1.733)Wb higher and lower values respectively, neglecting the under shoot in the flux value at the beginning of each voltage sector.