Page 85 - Power Quality in Electrical Systems
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200 V
Capacitor voltage
160 V
120 V
80 V
40 V
0 V
−40 V
0 ms 10 ms 20 ms 30 ms 40 ms 50 ms 60 ms 70 ms 80 ms 90 ms 100 ms
V(vload+)− V(vload−) Time
(a)
150 A
100 A
50 A
0 A
−50 A
−100 A
−150 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) Time
(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 5.6 A full-wave rectifier with current source load and increased capacitive filter to
10,000 µF. (a) The waveform of the load voltage, which has a reduced ripple compared to
the 1000 µF case. (b) The line current, which is very “spikey.” (c) The spectrum of the line
current.
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