Table 4

Table 4.2 Data for flux linkage error
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 Result for flux linkage in fuzzy logic with duty ratio and DTC were used.
In the analysis, above data were used. Torque response of the motor using ordinary DTC and fuzzy logic with duty ratio control for a step torque response in fuzzy logic with duty ratio control and DTC for a torque command of 2.4Wb with the drive output updated at a rate of 5kHz were used, the ripple generated was 4.67Wb (18-13.33) Wb greater and lesser values with ordinary DTC, while in fuzzy logic with duty ratio control, ripples was reduced further to 0.667b (2.4-1.733)Wb upper and lower values, assumed order response in flux value at starting of each voltage sector were neglected.

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