Harmonics Of The 6-Pulse Rectifier - WEG CFW11W G2 Series User Manual

Installation and Connection

3.2.1.4 Harmonics of the 6-Pulse Rectifier

Table 3.4 on page 3-11,
values of the currents, Power Factor and THD(I) on the power line, considering the 6-pulse rectifier.
Table 3.9: Typical individual harmonics, Power Factor and THD (I) for rated load in the output. 6-pulse rectifier
3
40 %
35 %
30 %
25 %
20 %
15 %
10 %
5 %
0 %
0 %
Note: Amplitude of the normalized harmonics as a function of the fundamental with 100 % of load. 6-pulse rectifier.
0.9
0.88
0.86
0.84
0.82
0.8
0.78
0.76
0.74
0 %
Figure 3.19: Power Factor (PF) and THD (I) with variation of the output power. 6-pulse rectifier
3-16 | CFW-11W G2
Figure 3.18 on page 3-16
Harmonic
I (%)
Order
1 100.0 %
5 38.7 %
7 14.1 %
11 6.7 %
13 3.3 %
17 2.9 %
19 1.9 %
23 1.4 %
20 % 40 %
Load percentage
Figure 3.18: Typical input current harmonic values with variation of the output power
20 % 40 %
and Figure 3.19 on page 3-16
FP THD(I)
0.89 42 %
60 % 80 % 100 %
60 % 80 %
Load percentage
show typical harmonic content
5ª Harmonic
7ª Harmonic
11ª Harmonic
13ª Harmonic
17ª Harmonic
19ª Harmonic
23ª Harmonic
120 %
90 %
80 %
FP
70 %
THD
60 %
50 %
40 %
30 %
100 % 120 %