ÇUKUROVA UNIVERSITY INSTITUTE OF NATURAL AND APPLIED ...

4. MODELING OF PROPOSED DVR Mustafa İNCİ
L , C and
f
f
R
f
values are determined according to above equations and
using these values in the transfer characteristic obtained in Equation 4.6, bode plot is
drawn. A Bode plot is a plot of the magnitude and phase of a transfer function or
other complex valued quantity, vs. frequency. The magnitude plot is effectively a
log-log plot, since the magnitude is expressed in decibels and the frequency axis is
logarithmic (Erickson et al., 2000, Köroğlu, 2012). Bode plot for
( L f
= 1.25
mH , C = 80 µ F and R = 0.04 Ω ) is shown in Figure 4.6.
f
f
Figure 4.6. The Frequency Response of the Inverter Side Connected Filter
Decibel values of some simple magnitudes are listed in Table 4.3. The
magnitude of a dimensionless quantity G can be expressed in decibels as follows
(Erickson et al., 2000):
G dB
= 20 log10 ( G )
(4.10)
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