Harmonics Of The 18-Pulse Rectifier - WEG CFW11W G2 Series User Manual

Installation and Connection

3.2.1.6 Harmonics of the 18-Pulse Rectifier

Table 3.7 on page
content values of the currents, Power Factor and THD(I) on the power line, considering the 18-pulse rectifier.
Table 3.11: Typical individual harmonics, Power Factor and THD(I) for rated load in the output. 18-pulse rectifier
3
3,0 %
2,5 %
2,0 %
1,5 %
1,0 %
0,5 %
0,0 %
0 %
Note: Amplitude of the normalized harmonics as a function of the fundamental with 100 % of load. 18-pulse rectifier
0.971
0.97
0.969
0.968
0.967
0.966
0.965
0 %
Figure 3.23: Power Factor (PF) and THD (I) with variation of the output power. 18-pulse rectifier
3-18 | CFW-11W G2
3-12, Figure 3.22 on page 3-18
Harmonic
Order
1
5
7
11
13
17
19
23
20 % 40 %
Load percentage
Figure 3.22: Typical input current harmonic values with variation of the output power
20 % 40 %
and Figure 3.23 on page 3-18
I(%) FP THD(I)
100.0 %
0.2 %
0.0 %
0.1 %
0.97 3.2 %
0.0 %
2.5 %
1.9 %
0.0 %
60 % 80 %
60 % 80 %
Load percentage
show the typical harmonic
5ª Harmonic
7ª Harmonic
11ª Harmonic
13ª Harmonic
17ª Harmonic
19ª Harmonic
23ª Harmonic
100 % 120 %
100 % 120 %
6.0 %
5.5 %
5.0 %
4.5 %
4.0 %
3.5 %
3.0 %