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©
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In
stit
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f
A
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.
Al
l
rig
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.
C
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p
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ing
A
uth
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:
R
.
P
alan
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a
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Dep
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.
ac
.
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n
1.
I
NT
RO
D
UCT
I
O
N
An
i
n
v
er
ter
is
a
n
elec
tr
o
n
ic
d
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v
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o
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cir
c
u
i
tr
y
t
h
at
c
h
a
n
g
e
s
d
ir
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t c
u
r
r
en
t
(
DC
)
to
alter
n
at
i
n
g
cu
r
r
e
n
t
(
AC
)
.
T
h
e
in
p
u
t
v
o
ltag
e,
o
u
tp
u
t
v
o
ltag
e
a
n
d
f
r
eq
u
e
n
c
y
,
a
n
d
o
v
er
all
p
o
w
er
h
a
n
d
li
n
g
d
ep
en
d
o
n
th
e
d
esig
n
o
f
th
e
s
p
ec
i
f
ic
d
ev
ice
o
r
cir
cu
itr
y
[
1
]
.
No
w
ad
a
y
s
m
an
y
i
n
d
u
s
t
r
ial
ap
p
licatio
n
s
h
a
v
e
b
eg
u
n
t
o
m
ee
t
t
h
e
p
o
w
er
d
em
a
n
d
.
T
h
ese
h
i
g
h
-
p
o
w
er
m
o
to
r
d
r
iv
es
a
n
d
u
t
i
lit
y
ap
p
licatio
n
s
r
eq
u
ir
e
m
ed
iu
m
v
o
ltag
e.
A
m
u
ltil
e
v
e
l
in
v
er
ter
i
s
a
p
o
w
er
elec
tr
o
n
ic
d
ev
ice
w
h
ic
h
is
ca
p
ab
le
o
f
p
r
o
v
id
in
g
d
esire
d
alter
n
ati
n
g
v
o
ltag
e
le
v
el
at
t
h
e
o
u
tp
u
t u
s
i
n
g
m
u
ltip
le
lo
w
er
le
v
el
DC
v
o
lta
g
es a
s
a
n
in
p
u
t [
2
]
,
[
3
]
.
No
w
ad
a
y
s
t
h
e
r
eq
u
ir
e
m
e
n
t
o
f
p
o
w
er
eq
u
ip
m
en
t’
s
is
i
n
cr
ea
s
in
g
r
ap
id
l
y
,
w
h
ich
i
n
cr
ea
s
es
t
h
e
h
ar
m
o
n
ic
co
n
te
n
t
w
it
h
in
th
e
m
[
3
]
,
[
5
]
.
Var
io
u
s
m
o
d
els
an
d
t
h
esi
s
h
av
e
b
ee
n
p
r
o
p
o
s
ed
to
r
ed
u
ce
th
e
m
.
L
e
v
el
s
o
f
in
v
er
ter
s
ar
e
i
n
cr
ea
s
ed
to
r
ed
u
ce
th
e
h
ar
m
o
n
ic
s
.
So
m
e
o
f
th
e
m
u
s
e
g
r
ea
ter
n
u
m
b
er
o
f
s
w
itc
h
e
s
to
i
n
cr
ea
s
e
th
e
lev
e
l
o
f
th
e
i
n
v
er
ter
[
6
]
,
[
7
]
.
C
o
n
tr
ad
ictin
g
t
h
i
s
f
ac
t
t
h
i
s
in
v
er
ter
to
p
o
lo
g
y
u
s
e
s
les
s
n
u
m
b
er
o
f
s
w
i
tch
e
s
an
d
u
s
e
s
m
u
l
ticar
r
ier
s
in
e
wav
es
as
a
n
i
n
ter
r
u
p
t.
U
n
li
k
e
[
8
]
it
d
o
es
n
o
t
u
s
e
tr
ian
g
u
lar
w
a
v
e
w
it
h
p
h
a
s
e
d
is
p
o
s
itio
n
tec
h
n
iq
u
e.
Mu
ltic
ar
r
ier
p
u
ls
e
w
id
th
m
o
d
u
latio
n
w
o
r
k
s
w
ith
a
co
n
s
ta
n
t
ca
r
r
ier
f
r
eq
u
en
c
y
n
o
t
s
y
n
ch
r
o
n
ized
w
it
h
f
u
n
d
a
m
e
n
t
al
s
tato
r
f
r
eq
u
en
c
y
[
9
]
.
Mu
lti
ca
r
r
ier
p
u
ls
e
w
id
th
m
o
d
u
latio
n
g
i
v
es
a
n
o
p
ti
m
al
u
tili
za
t
io
n
o
f
s
w
i
tch
in
g
f
r
eq
u
en
c
y
p
er
m
i
tted
,
th
er
ef
o
r
e
P
W
M
ca
r
r
ier
f
r
eq
u
en
c
y
m
a
y
b
e
c
h
o
s
en
to
a
v
al
u
e
o
f
t
w
o
ti
m
es t
h
e
p
er
m
it
ted
s
w
itc
h
in
g
f
r
eq
u
en
c
y
[
1
0
]
,
[
1
1
]
.
Mu
lticar
r
ier
P
W
M
s
tr
ate
g
y
is
th
e
w
id
el
y
-
ad
o
p
ted
m
o
d
u
lati
o
n
s
tr
ate
g
y
f
o
r
m
u
lti
-
le
v
el
i
n
v
er
ter
.
I
t
i
s
s
i
m
ilar
to
t
h
at
o
f
th
e
SP
W
M
s
tr
ateg
y
e
x
ce
p
t
f
o
r
th
e
f
ac
t
th
at
s
ev
er
al
ca
r
r
ier
s
ar
e
u
s
ed
.
I
n
t
h
is
tech
n
iq
u
e,
s
ev
er
al
tr
ian
g
u
lar
in
p
u
t
s
is
co
m
p
ar
ed
w
it
h
a
s
in
e
w
a
v
e
[
1
2
]
.
T
h
e
n
u
m
b
er
o
f
ca
r
r
ier
s
r
eq
u
ir
ed
to
p
r
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d
u
ce
m
-
lev
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u
tp
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t
is
m
-
1
.
A
ll
ca
r
r
ie
r
s
h
a
v
e
t
h
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s
a
m
e
p
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to
p
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k
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m
p
lit
u
d
e
A
c
a
n
d
s
a
m
e
f
r
eq
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en
c
y
f
c
e
x
ce
p
t
f
o
r
v
ar
iab
le
f
r
eq
u
e
n
c
y
P
W
M
[
1
3
]
,
[
1
4
]
.
T
h
e
p
o
in
t
o
f
in
ter
s
ec
t
io
n
o
f
th
e
tr
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n
g
u
lar
w
a
v
e
w
i
th
s
i
n
e
w
a
v
e
g
i
v
e
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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t J
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&
C
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I
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2
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Desig
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S
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o
f No
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leve
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n
ve
r
ter S
ch
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w
ith
R
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S
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es
(
R
.
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is
a
my
)
3537
s
tep
in
p
u
t
as
o
u
tp
u
t
[
1
5
]
.
T
h
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r
ef
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s
in
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w
a
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is
co
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tin
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p
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ated
[
1
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.
T
h
e
p
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p
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s
ed
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im
u
latio
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m
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T
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g
e
s
tr
ess
o
n
ea
ch
co
n
tr
o
lled
s
w
itc
h
i
n
g
d
ev
ices,
ca
p
ac
ito
r
b
alan
ci
n
g
an
d
s
w
itch
in
g
lo
s
s
e
s
ca
n
b
e
r
ed
u
ce
d
.
T
h
e
p
r
o
p
o
s
e
d
s
y
s
te
m
w
h
ich
g
i
v
e
s
b
etter
co
n
tr
o
lled
o
u
tp
u
t
cu
r
r
en
t
a
n
d
i
m
p
r
o
v
ed
o
u
tp
u
t
v
o
ltag
e
w
it
h
m
o
d
er
ate
T
HD
v
alu
e.
T
h
e
s
i
m
u
latio
n
a
n
d
ex
p
e
r
i
m
en
tal
r
es
u
lts
o
f
t
h
e
p
r
o
p
o
s
ed
1
1
-
lev
el
i
n
v
er
ter
s
y
s
te
m
o
u
tp
u
t
s
ar
e
estab
lis
h
ed
u
s
i
n
g
m
atlab
/
Si
m
u
l
in
k
an
d
d
s
P
I
C
m
icr
o
co
n
tr
o
ll
er
r
esp
ec
tiv
el
y
.
2.
CIRCU
I
T
AN
D
WO
RK
I
N
G
O
F
1
1
-
L
E
VE
L
I
N
VE
R
T
E
R
In
F
ig
u
r
e
1
s
h
o
w
s
p
o
w
er
c
ir
cu
it o
f
7
lev
e
l i
n
v
er
ter
,
w
h
ic
h
co
n
s
i
s
ts
o
f
d
c
li
n
k
ca
p
ac
ito
r
C
1
,
C
2
,
C
3
, C
4
an
d
C
5
ac
r
o
s
s
t
h
e
ap
p
lied
d
c
s
o
u
r
ce
.
P
o
w
er
s
e
m
ico
n
d
u
cto
r
s
w
itc
h
es
S
1
,
S
2
,
S
3
,
S
4
,
S
5
,
S
6
,
S
7
a
n
d
S
8
a
n
d
f
r
ee
w
h
ee
l
in
g
d
io
d
es
D
1
,
D
2
,
D
3
,
D
4
,
D
5
,
D
6
,
D
7
a
n
d
D
8
ar
e
u
s
ed
to
co
m
b
in
e
th
e
v
o
lta
g
es
to
ac
q
u
ir
e
t
h
e
1
1
lev
el
v
o
lta
g
es.
A
n
d
w
h
ich
c
o
n
tain
s
co
n
v
e
n
tio
n
al
2
lev
el
VSI
cir
cu
it
is
ad
d
ed
w
it
h
f
r
o
n
t
cir
cu
it,
w
h
ic
h
co
n
s
is
ts
o
f
p
o
w
er
s
w
itc
h
es S
9
,
S
10
,
S
11
,
an
d
S
12
an
d
co
u
p
led
i
n
d
u
cto
r
is
u
s
ed
co
n
n
ec
t
w
it
h
l
o
ad
cir
cu
it.
Fig
u
r
e
1
.
C
ir
cu
it o
f
n
o
v
el
1
1
-
l
ev
el
in
v
er
ter
2
.
1
.
M
o
des
o
f
o
pera
t
i
o
n
Fro
m
t
h
e
p
o
w
er
cir
c
u
it
o
f
1
1
-
lev
el
v
o
ltag
e
in
v
er
ter
h
as
th
e
f
o
llo
w
in
g
ele
v
e
n
s
w
itc
h
in
g
m
o
d
e
co
m
b
i
n
atio
n
s
is
s
h
o
w
n
i
n
F
ig
u
r
e
2.
Mo
d
e
1
:
to
attain
th
e
o
u
tp
u
t
v
o
ltag
e
lev
e
l
as
+V
d
c,
th
e
s
w
it
ch
es
S1
,
S2
,
S9
,
an
d
S1
2
ar
e
k
ep
t
in
O
N
co
n
d
itio
n
.
Her
e
n
o
n
e
o
f
t
h
e
f
r
ee
w
h
ee
li
n
g
d
io
d
e
is
i
n
ON
c
o
n
d
itio
n
,
w
h
ich
i
s
s
h
o
w
n
i
n
Fi
g
u
r
e
2
(
a
)
.
Mo
d
e
2
:
to
o
b
tain
th
e
o
u
tp
u
t
v
o
ltag
e
l
ev
e
l
as
+
Vd
c,
th
e
s
w
itc
h
e
s
S1
,
S9
,
a
n
d
S1
2
ar
e
k
ep
t
in
O
N
co
n
d
itio
n
.
A
n
d
h
er
e
f
r
ee
w
h
ee
l
in
g
d
io
d
e
D8
is
in
ON
co
n
d
iti
o
n
,
w
h
ic
h
is
s
h
o
w
n
in
F
ig
u
r
e
2
(
b
)
.
Mo
d
e
3
:
to
ac
q
u
ir
e
th
e
o
u
tp
u
t
v
o
ltag
e
lev
el
as
+
Vd
c,
th
e
s
w
itc
h
e
s
S1
,
S9
,
S1
2
an
d
S6
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
h
er
e
f
r
ee
wh
ee
li
n
g
d
io
d
e
D6
is
in
O
N
co
n
d
itio
n
,
w
h
ic
h
is
s
h
o
w
n
in
Fig
u
r
e
2
(
c
).
Mo
d
e
4
:
to
g
en
er
ate
th
e
o
u
tp
u
t
v
o
ltag
e
lev
el
as
+
V
dc
,
th
e
s
w
itc
h
e
s
S
1
,
S
9
,
S
12
an
d
S
5
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
h
er
e
f
r
ee
wh
ee
li
n
g
d
io
d
e
D
4
is
in
ON
co
n
d
itio
n
,
w
h
ic
h
is
s
h
o
w
n
in
Fig
u
r
e
2
(
d
)
.
Mo
d
e
5
:
to
g
en
er
ate
th
e
o
u
tp
u
t
v
o
ltag
e
lev
el
as
+
V
dc
,
th
e
s
w
itc
h
e
s
S
1
,
S
9
,
S
12
an
d
S
3
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
h
er
e
f
r
ee
wh
ee
li
n
g
d
io
d
e
D
2
is
in
ON
co
n
d
itio
n
,
w
h
ic
h
is
s
h
o
w
n
in
Fig
u
r
e
2
(
e)
.
Mo
d
e
6
:
to
o
b
tai
n
th
e
o
u
tp
u
t
v
o
ltag
e
le
v
el
as
-
V
dc
,
th
e
s
w
itc
h
e
s
S
2
,
S
10
,
S
11
an
d
S
1
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
n
o
n
e
o
f
t
h
e
f
r
ee
w
h
e
eli
n
g
d
io
d
es is
in
O
N
co
n
d
itio
n
,
w
h
ich
i
s
s
h
o
w
n
i
n
Fi
g
u
r
e
2
(
f
)
.
Mo
d
e
7
:
to
o
b
tain
th
e
o
u
tp
u
t
v
o
ltag
e
lev
e
l
as
-
V
dc
,
th
e
s
witch
es
S
2
,
S
10
,
an
d
S
11
ar
e
k
ep
t
in
O
N
co
n
d
itio
n
.
A
n
d
h
er
e
f
r
ee
w
h
ee
l
in
g
d
io
d
e
D
1
is
in
ON
co
n
d
iti
o
n
,
w
h
ic
h
is
s
h
o
w
n
in
F
ig
u
r
e
2
(
g
)
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
8
,
No
.
5
,
Octo
b
er
2
0
1
8
:
3
5
3
6
–
3
5
4
3
3538
(
a)
(
b
)
(
c)
(
d
)
(
e)
(
f
)
(
g
)
(
h
)
(
i)
(
j
)
(
k
)
Fig
u
r
e
2
.
Mo
d
es o
f
o
p
er
atio
n
(
a)
+V
dc
(
b
)
+
V
dc
(
c)
+
V
dc
(
d
)
+
V
dc
(
e)
+
V
dc
(
f
)
-
V
dc
(
g
)
-
V
dc
(
h
)
-
V
dc
(
i)
-
V
dc
(
j
)
-
V
dc
(
k
)
0
V
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
Desig
n
a
n
d
S
imu
la
tio
n
o
f No
ve
l 1
1
-
leve
l I
n
ve
r
ter S
ch
eme
w
ith
R
ed
u
ce
d
S
w
itch
es
(
R
.
P
a
la
n
is
a
my
)
3539
Mo
d
e
8
:
to
o
b
tain
th
e
o
u
tp
u
t
v
o
ltag
e
le
v
el
as
-
V
dc
,
th
e
s
w
itc
h
e
s
S
2
,
S
10
,
S
11
an
d
S
4
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
h
er
e
f
r
ee
wh
ee
li
n
g
d
io
d
e
D
3
is
in
ON
co
n
d
itio
n
,
w
h
ic
h
is
s
h
o
w
n
in
Fig
u
r
e
2
(
h
)
.
Mo
d
e
9
:
to
o
b
tain
th
e
o
u
tp
u
t
v
o
ltag
e
le
v
el
as
-
V
dc
,
th
e
s
w
itc
h
e
s
S
2
,
S
10
,
S
11
an
d
S
7
k
ep
t
in
ON
co
n
d
itio
n
.
A
n
d
h
er
e
f
r
ee
w
h
ee
l
in
g
d
io
d
e
D
5
in
ON
co
n
d
itio
n
,
w
h
ic
h
is
s
h
o
w
n
i
n
Fi
g
u
r
e
2
(
i)
.
Mo
d
e
1
0
:
t
o
o
b
tain
th
e
o
u
tp
u
t
v
o
ltag
e
le
v
el
as
-
V
dc
,
th
e
s
w
itc
h
e
s
S
2
,
S
10
,
S
11
an
d
S
8
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
h
er
e
f
r
ee
wh
ee
li
n
g
d
io
d
e
D
7
is
in
ON
co
n
d
itio
n
,
w
h
ic
h
is
s
h
o
w
n
in
Fig
u
r
e
2
(
j
)
.
Mo
d
e
1
1
:
to
g
ain
th
e
o
u
tp
u
t
v
o
ltag
e
le
v
el
as
0
,
th
e
s
w
itc
h
es
S
9
an
d
S
11
ar
e
k
ep
t
in
ON
co
n
d
itio
n
.
An
d
h
er
e
n
o
n
e
o
f
t
h
e
f
r
ee
w
h
e
elin
g
d
io
d
e
is
in
O
N
co
n
d
itio
n
,
w
h
ich
i
s
s
h
o
w
n
in
Fig
u
r
e
2
(
k
)
an
d
also
m
o
d
e
s
o
f
o
p
er
atio
n
w
it
h
p
o
s
itio
n
o
f
co
m
p
o
n
en
t
s
s
h
o
w
n
i
n
T
ab
le
1
.
T
ab
le
1
.
Mo
d
es o
f
Op
er
atio
n
w
it
h
P
o
s
itio
n
o
f
C
o
m
p
o
n
e
n
t
s
Ou
t
p
u
t
V
o
l
t
a
g
e
L
e
v
e
l
C
a
p
a
c
i
t
o
r
s ON
S
w
i
t
c
h
e
s ON
F
r
e
e
w
h
e
e
l
i
n
g
D
i
o
d
e
O
N
+V
dc
C
1
,
C
2
,
C
3
,
C
4
,
C
5
S
1
,
S
2
,
S
1
0
,
S
1
1
-
+
V
dc
C
1
,
C
2
,
C
3
,
C
4
S
1
,
S
9
,
S
1
2
D8
+
V
dc
C
1
,
C
2
,
C
3
S
1
,
S
7
,
S
9
,
S
1
2
D6
+
V
dc
C
1
,
C
2
S
1
,
S
5
,
S
9
,
S
1
2
D4
+
V
dc
C1
S
1
,
S
3
,
S
9
,
S
1
2
D2
0
-
S
9
,
S
1
1
-
-
V
dc
C
1
,
C
2
,
C
3
,
C
4
,
C
5
S
1
,
S
2
,
S
1
0
,
S
1
1
-
-
V
dc
C
2
,
C
3
,
C
4
,
C
5
S
2
,
S
1
0
,
S
1
1
D1
-
V
dc
C
3
,
C
4
,
C
5
S
2
,
S
4
,
S
1
0
,
S
1
1
D3
-
V
dc
C
4
,
C
5
S
2
,
S
7
,
S
1
0
,
S
1
1
D5
-
V
dc
C5
S
2
,
S
8
,
S
1
0
,
S
1
1
D7
3.
M
UL
T
I
CARR
I
E
R
SPWM
(
M
CSPW
M
)
I
n
o
r
d
er
to
p
r
eser
v
e
o
r
r
ed
u
ce
s
y
s
te
m
co
s
t
o
r
s
tr
u
ct
u
r
e,
im
p
er
at
iv
e
to
m
ai
n
tai
n
t
h
e
s
h
o
o
t
th
r
o
u
g
h
r
atio
as c
o
n
s
tan
t.
A
t
th
e
s
a
m
e
to
r
ed
u
ce
th
e
v
o
ltag
e
s
tr
es
s
ac
r
o
s
s
th
e
p
o
w
er
s
w
itc
h
e
s
,
t
h
e
b
o
o
s
ted
v
o
ltag
e
w
it
h
p
r
o
p
er
v
ar
iatio
n
o
f
m
o
d
u
latio
n
in
d
e
x
.
I
n
F
ig
u
r
e
3
s
h
o
w
s
th
e
m
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-
2
9
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6
,
2
0
1
0
.
[4
]
Bh
a
ra
ti
ra
ja,
C.
,
Ra
g
h
u
,
S
.
,
Ra
o
,
P
.
,
P
a
li
n
iam
y
,
K.R.
S
.
,
“
Co
m
p
a
ra
ti
v
e
A
n
a
l
y
sis
o
f
d
iff
e
re
n
t
P
W
M
T
e
c
h
n
iq
u
e
s
to
Re
d
u
c
e
th
e
C
o
m
m
o
n
M
o
d
e
V
o
l
t
a
g
e
in
T
h
re
e
-
lev
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Ne
u
tral
-
p
o
in
t
-
c
la
m
p
e
d
In
v
e
rters
f
o
r
V
a
riab
le
s
p
e
e
d
In
d
u
c
ti
o
n
D
riv
e
s”
,
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
o
f
Po
we
r E
lec
tro
n
ics
a
n
d
Dr
ive
S
y
ste
ms
,
v
o
l.
3
,
n
o
.
1
,
p
p
.
1
0
5
-
1
1
6
,
M
a
rc
h
2
0
1
3
.
[5
]
R.
P
a
lan
isa
m
y
,
K.
V
ij
a
y
a
k
u
m
a
r,
Ko
m
a
ri
Nik
h
il
,
M
a
d
h
u
m
a
th
i
Iy
e
r,
Ra
m
a
c
h
a
n
d
a
r
Ra
o
,
“
A
P
ro
p
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se
d
S
VM
f
o
r
3
-
lev
e
l
T
ra
n
s
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e
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les
s
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a
l
In
v
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S
c
h
e
m
e
f
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r
G
rid
Co
n
n
e
c
ted
P
V
S
y
ste
m
”
,
In
d
ia
n
J
o
u
rn
a
l
o
f
S
c
ien
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e
a
n
d
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h
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o
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y
,
v
o
l.
9
,
n
o
.
4
2
,
N
o
v
.
2
0
1
6
.
[6
]
Y.
Ca
i,
C.
W
a
n
g
,
F
.
Zh
a
o
,
a
n
d
R.
Do
n
g
,
“
D
e
sig
n
o
f
a
Hig
h
-
f
re
q
u
e
n
c
y
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late
d
D
T
HB c
LL
C
Bid
irec
ti
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l
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so
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n
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DC Co
n
v
e
rter
”
,
in
Pr
o
c
.
IEE
E
Co
n
f.
T
r
a
n
sp
.
El
e
c
trif
ica
ti
o
n
A
sia
-
Pa
c
.
,
2
0
1
4
,
p
p
.
1
-
6.
[7
]
D.
Y.
Ki
m
,
J.
K.
Ki
m
,
a
n
d
G
.
-
W
.
M
o
o
n
,
“
A
T
h
re
e
-
lev
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Co
n
v
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h
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d
F
il
ter
siz
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u
sin
g
t
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o
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r
a
n
s
f
o
r
m
e
rs an
d
F
ly
in
g
Ca
p
a
c
it
o
rs”
,
IEE
E
T
ra
n
s
.
Po
we
r E
lec
tro
n
.
,
v
o
l
.
2
8
,
n
o
.
1
,
p
p
.
4
6
-
5
3
,
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n
.
2
0
1
3
.
[8
]
R.
P
a
lan
isa
m
y
a
n
d
K.
V
ij
a
y
a
k
u
m
a
r,
“
M
a
x
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m
u
m
Bo
o
st
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n
tro
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fo
r
7
-
lev
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a
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d
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”
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ter
n
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t
io
n
a
l
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o
u
rn
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l
o
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r
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lec
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ics
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n
d
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ive
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ms
,
v
o
l
.
8
,
n
o
.
2
,
Ju
n
e
2
0
1
7
.
[9
]
P
o
h
Ch
ia
n
g
L
o
h
,
F
e
n
g
G
a
o
,
F
re
d
e
Blaa
b
jerg
,
a
n
d
S
o
k
w
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il
i
m
,
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e
ra
ti
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n
a
l
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n
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o
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o
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re
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In
v
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rters
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n
h
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n
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tp
u
t
W
a
v
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f
o
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Qu
a
li
t
y
”
,
IEE
E
T
ra
n
sa
c
ti
o
n
o
n
Po
w
e
r
El
e
c
tro
n
ics
, v
o
l.
2
4
,
n
o.
7
,
Ju
ly
2
0
1
0
.
[1
0
]
R.
P
a
lan
isa
m
y
,
A
.
U
M
u
taw
a
k
k
il
,
K.
V
ij
a
y
a
k
u
m
a
r
,
“
H
y
ste
r
e
sis
S
VM
f
o
r
Co
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led
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d
u
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o
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o
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lev
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v
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se
d
g
rid
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n
e
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ted
P
V
S
y
ste
m
”
,
In
ter
n
a
ti
o
n
a
l
J
o
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rn
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l
o
f
Po
we
r
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e
c
tr
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n
ics
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n
d
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ive
S
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tem
s
,
v
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l
.
7
,
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o
.
4
,
De
c
2
0
1
6
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
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&
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g
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N:
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ter S
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my
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3543
[1
1
]
H.
S
h
i
n
o
h
a
ra
,
K.
Kim
o
to
,
T
.
Itam
i,
T
.
Am
b
o
u
,
C.
Ok
a
d
o
,
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Na
k
a
ji
m
a
,
S
.
Ho
jo
,
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Ow
a
d
a
,
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.
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n
iy
o
sh
i,
a
n
d
Y
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to
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v
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m
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a
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se
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it
y
In
tera
c
ti
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e
P
V
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v
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w
it
h
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latio
n
T
ra
n
sf
o
r
m
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r
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les
s
Circu
it
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v
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m
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n
t
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sp
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ts
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in
Pro
c
.
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EE
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Ph
o
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2
0
0
9
,
p
p
.
1
2
1
6
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1
2
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8
.
[1
2
]
E.
G
u
b
ra
,
P
.
S
a
n
c
h
is,
A
.
Urs
u
a
,
J.
L
o
p
e
z
,
a
n
d
L
.
M
a
rro
y
o
,
“
G
r
o
u
n
d
Cu
rre
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ts
in
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p
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se
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ra
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lt
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ic S
y
ste
m
s
”
,
Pro
g
.
Ph
o
to
v
o
lt
:
Res
.
A
p
p
l
.
,
p
p
.
6
2
9
-
6
5
0
,
M
a
y
2
0
0
9.
[1
3
]
O.
L
o
p
e
z
,
R.
T
e
o
d
o
re
sc
u
,
F
.
F
re
ij
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d
o
,
a
n
d
J.
Do
v
a
l
-
G
a
n
d
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,
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li
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ic A
p
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a
ti
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”
,
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n
Pr
o
c
.
IEE
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.
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n
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,
p
p
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1
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5
,
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n
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2
0
0
9
.
[1
4
]
T
.
Ke
r
e
k
e
s,
R.
T
e
o
d
o
re
sc
u
,
a
n
d
M
.
L
ise
rre
,
“
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a
lu
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T
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p
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r
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s
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ic
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v
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o
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o
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,
”
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E
T
ra
n
s.
P
o
we
r
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e
c
tro
n
.
,
v
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l.
2
4
,
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.
9
,
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p
.
2
2
0
2
-
2
2
1
1
,
S
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p
.
2
0
1
2
.
[1
5
]
H.
F
.
X
iao
a
n
d
S
.
J.
Xie
,
“
L
e
a
k
a
g
e
Cu
rre
n
t
A
n
a
l
y
ti
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a
l
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o
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l
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n
d
A
p
p
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ti
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in
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in
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p
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se
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ra
n
s
f
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m
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s
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h
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v
o
lt
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i
c
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rid
-
co
n
n
e
c
ted
In
v
e
rter
”
,
IEE
E
T
r
a
n
s.
El
e
c
tro
ma
g
n
.
Co
mp
a
t
.
v
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l.
5
2
,
n
o
.
4
,
p
p
.
9
0
2
-
9
1
3
,
N
o
v
.
2
0
1
0
.
[1
6
]
P
a
lan
isa
m
y
,
R.
,
V
ij
a
y
a
k
u
m
a
r,
K.
,
Ba
g
c
h
i,
A
.
,
G
u
p
ta,
V
.
,
S
in
h
a
,
S
.
,
“
Im
p
lem
e
n
tatio
n
o
f
Co
u
p
led
I
n
d
u
c
to
r
b
a
se
d
7
-
L
e
v
e
l
In
v
e
rt
e
r
w
it
h
Re
d
u
c
e
d
S
w
it
c
h
e
s
”
,
In
ter
n
a
ti
o
n
a
l
J
o
u
rn
a
l
o
f
Po
we
r
El
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c
tro
n
ics
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n
d
Dr
ive
S
y
ste
ms
,
v
o
l.
8
,
n
o
.
3
,
p
p
.
1
2
9
4
-
1
3
0
3
,
2
0
1
7
.
Evaluation Warning : The document was created with Spire.PDF for Python.