Page 108 - Power Quality in Electrical Systems
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Power Harmonic Filters 91
120 A
80 A
40 A
0 A
−40 A
−80 A
−120 A
300 ms 310 ms 320 ms 330 ms 340 ms 350 ms 360 ms 370 ms 380 ms 390 ms 400 ms
i(ls) Time
(b)
120 A
100 A
80 A
60 A
40 A
20 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(Ls) Frequency
(c)
Figure 6.17 (Continued)
TABLE 6.1 Harmonic Currents for
Example 6.1
Harmonic number Value (Amps)
1 100
5 50
7 25
11 15
