Page 84 - Power Quality in Electrical Systems
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Harmonic Current Sources 67
40 A
20 A
0 A
−20 A
−40 A
100 ms 110 ms 120 ms 130 ms 140 ms 150 ms 160 ms 170 ms 180 ms 190 ms 200 ms
I(vs)
(b)
10 A
8 A
6 A
4 A
2 A
0 A
0 Hz 0.1 KHz 0.2 KHz 0.3 KHz 0.4 KHz 0.5 KHz 0.6 KHz 0.7 KHz 0.8 KHz 0.9 KHz 1.0 KHz
I(vs) Frequency
(c)
Figure 5.5 (Continued)
capacitor to 10,000
F, we reduce the output ripple to approximately
4 V, but the line current is much more spikey and the THD of the line
current is approximately 265 percent. This result illustrates one trade-off
with this type of rectifier.
