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Power Electronics and Motor Drives
book

Power Electronics and Motor Drives

by Bogdan M. Wilamowski, J. David Irwin
October 2018
Intermediate to advanced content levelIntermediate to advanced
1015 pages
40h 24m
English
CRC Press
Content preview from Power Electronics and Motor Drives
Filtering Techniques for Power Quality Improvement 38-41
As described in Figure 38.54, the peak value
i
s
is delivered by the outer regulator and is therefore con-
sidered
a
s
t
he
i
nput
si
gnal
o
f
t
he
o
uter
s
ubsystem.
e
n
ext
s
tep,
t
hen,
i
s
to
d
evelop
t
he
t
ransfer
f
unc-
tion
t
hat
r
elates
t
he
o
uter
c
ontrolled
v
ariable
v
dc
to the input control variable
i
s
, on the basis of which
t
he
d
esign
o
f
t
he
l
inear
o
uter
r
egulator
w
ill
b
e
c
arried
o
ut.
U
sing
e
xpressions
(
38.52)
a
nd
(
38.54)
i
nto
E
quation 38.55 yields the steady-state time expression of the duty cycle
d t
v
v
L
d i i
dt
dc
s
c
L s
1
1
2
1
2
*
( )
= + +
(
)
*
(
38.55)
with
v
v t
s
s s
=
(
)
ˆ
sin ω
(38.56)
and
i i
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Publisher Resources

ISBN: 9781439802861