
165Simulation of Power Electronics Devices
is “close” for the block Breaker. The output-source voltage and its current resulting
from simulation under the output frequency of 30 Hz are plotted in Figure 4.79. THD
of the voltage is 1.5%, and of the current, 5.1% (under setting in Powergui Start
time= 0.04 s, Number of cycles = 2, F = 50 Hz). It is recommended that the reader
will trace the inuence of changing lter parameters on the network’s current shape.
0.048
400
200
0
0.05 0.052 0.054 0.056 0.058 0.06
load
t (s)
0 0.02 0.04 0.06 0.08 0.1
100
200
0
I
load
(A)
FIGURE 4.78 Load voltage and current in MC under output fr ...