Page 441 - Handbook of Electrical Engineering

430 HANDBOOK OF ELECTRICAL ENGINEERING

Table 15.6. Harmonic rms currents and voltages in a star-wound induction motor that is fed from a current
source inverter
Harmonic Stator current Rotor current Magnetising Air-gap voltage
number current

Mag. Angle Mag. Angle Mag. Angle Mag. Angle
(Amps) (Degrees) (Amps) (Degrees) (Amps) (Degrees) (Amps) (Degrees)
1 392.28 0 370.54 11.33 78.36 −68.32 229.67 21.68
5 78.45 180.0 75.58 180.014 2.87 179.63 42.06 269.63
7 56.01 180.0 53.99 180.014 2.05 179.63 42.06 269.63
11 35.66 0 34.35 0.007 1.30 −0.186 42.06 89.81
13 30.67 0 29.07 0.007 1.10 −0.186 42.06 89.81
17 23.07 180.0 22.23 180.005 0.84 179.88 42.06 269.88
19 20.65 180.0 19.89 180.005 0.76 179.88 42.06 269.88
23 17.05 0 16.43 0.004 0.62 −0.093 42.06 89.91
25 15.69 0 15.12 0.004 0.57 −0.093 42.06 89.91
29 13.53 180.0 13.03 180.003 0.49 179.93 42.76 269.93
31 12.65 180.0 12.19 180.003 0.46 179.93 42.76 269.93

Figure 15.13 Instantaneous voltages and currents in an induction motor supplied from a current source inverter.