October 2020
Intermediate to advanced
450 pages
15h 32m
English
Content preview from Electrotechnical Systems
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135Simulation of Power Electronics Devices
U
L
=U
c
, U
i
= 0. When the switches are turned off (disconnecting of the short circuit),
U
L
= U
d
– U
c
, U
i
= 2U
c
– U
d
. Let the turning-on time be T
0
and turning-off beT
1
. The
average value of the voltage across the inductance for one period is zero, then
U
T
TT
U
cd
=
−
1
10
()
(4.13)
The average value of the inverter input voltage is
U
T
TT
UT
TT
UT
TT
U
icp
dd
c
=
−
−
+
=
−
=
2
1
1
10
1
10
1
10
(4.14)
Since the short-circuit mode does not necessarily affect inverter operation during
the use of active states, it is realized, when the usual zero states are to be used, that
U
i
=0 on the interval T
0
does not affect the resulting v ...
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