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T
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n
ati
v
e
p
o
w
er
to
a
v
a
r
iab
le
DC
v
o
lta
g
e.
T
h
e
ef
f
ec
t
o
f
th
e
w
in
d
i
s
r
ep
r
esen
ted
b
y
t
h
e
p
r
i
m
e
m
o
v
er
w
h
ic
h
also
lead
s
to
a
v
ar
iab
l
e
R
MS
o
u
tp
u
t
v
o
lta
g
e
o
f
t
h
e
in
v
er
ter
.
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h
e
o
b
j
ec
tiv
e
is
to
r
eg
u
late
t
h
e
o
u
tp
u
t
v
o
ltag
e
b
y
u
s
i
n
g
t
h
e
clo
s
ed
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l
o
o
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c
o
n
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o
l
s
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e
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e
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h
at
w
h
y
a
f
u
zz
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)
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c
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o
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n
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o
p
r
iate
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o
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u
l
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tio
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n
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ex
(
m
i)
u
s
ed
i
n
s
i
n
u
s
o
i
d
al
p
u
ls
e
-
w
id
t
h
m
o
d
u
latio
n
(
S
P
W
M)
,
an
d
f
in
all
y
w
e
cr
ea
te
th
e
d
if
f
er
e
n
t
p
er
m
u
tatio
n
w
h
ic
h
ca
n
ta
k
e
th
e
VSI
.
T
h
e
o
u
tp
u
t
o
f
th
e
s
y
s
te
m
co
n
tai
n
s
a
lo
t
o
f
d
is
to
r
tio
n
s
an
d
th
e
T
HD
is
v
er
y
h
ai
g
h
.
So
,
w
e
co
n
n
ec
t
a
p
ass
iv
e
f
il
ter
b
ef
o
r
e
tr
an
s
f
er
r
in
g
p
o
w
er
to
th
e
lo
ad
s
[
1
2
]
.
T
h
e
o
u
tlin
e
o
f
th
i
s
p
ap
er
is
d
o
n
e
as
th
e
f
o
llo
w
i
n
g
:
in
f
ir
s
t
s
ec
tio
n
w
e
talk
ab
o
u
t
t
h
e
s
y
s
te
m
co
n
f
i
g
u
r
atio
n
a
n
d
w
e
p
r
o
p
o
s
e
th
e
F
L
P
I
r
eg
u
la
to
r
u
s
ed
with
t
h
e
SP
W
M
s
w
itc
h
i
n
g
s
ch
e
m
e.
I
n
t
h
e
s
ec
o
n
d
s
ec
tio
n
,
th
e
s
i
m
u
la
tio
n
,
th
e
ex
p
er
im
e
n
tal
r
es
u
lts
a
n
d
th
e
co
r
r
esp
o
n
d
in
g
a
n
al
y
s
is
ar
e
p
r
esen
ted
.
Fin
all
y
,
in
th
e
last
s
ec
tio
n
w
e
en
d
u
p
t
h
is
p
ap
er
w
it
h
a
co
n
cl
u
s
io
n
.
2.
SYST
E
M
CO
NF
I
G
URA
T
I
O
N
I
n
th
i
s
s
ec
tio
n
w
e
p
r
ese
n
t
t
h
e
s
tan
d
-
alo
n
e
g
e
n
er
ato
r
,
w
h
ic
h
is
d
es
ig
n
ed
f
o
r
f
ee
d
in
g
a
t
h
r
ee
p
h
ase
lo
ad
,
Fig
u
r
e
1
s
h
o
w
s
a
s
ch
e
m
a
tic
o
f
o
u
r
s
y
s
te
m
.
T
h
e
p
ar
g
r
ap
h
es
b
elo
w
d
is
c
u
s
s
m
at
h
e
m
at
ical
eq
u
atio
n
s
t
h
a
t
m
o
d
el
th
e
co
m
p
o
n
e
n
ts
o
f
t
h
e
s
y
s
te
m
co
n
s
id
er
ed
n
a
m
el
y
t
h
e
SEI
G,
AC
/D
C
co
n
v
er
ter
,
th
e
VSI
an
d
L
C
f
ilter
.
Fig
u
r
e
1
.
C
o
n
f
ig
u
r
atio
n
o
f
th
e
p
r
o
p
o
s
ed
s
y
s
te
m
2
.
1
.
SE
I
G
M
a
t
he
m
a
t
ica
l
M
o
del
P
r
ac
tically
w
e
co
n
s
id
er
th
e
d
y
n
a
m
ic
m
o
d
el
o
f
th
e
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I
t
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n
b
e
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lated
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r
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t
h
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o
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el
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y
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i
f
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g
th
e
co
n
v
en
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al
d
y
n
a
m
ic
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u
atio
n
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o
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an
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C
m
ac
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e,
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r
ese
n
ted
i
n
t
h
e
w
o
r
k
s
o
f
M.
B
as
ic
[
1
3
]
.
T
h
e
class
ic
d
y
n
a
m
ic
m
o
d
el
SEI
G
e
x
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r
ess
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lace
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o
m
a
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a
n
d
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itab
le
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MA
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m
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li
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ib
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e
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y
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e
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1
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if
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er
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tial
Or
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I
J
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N:
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8708
d
S
P
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mp
leme
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tio
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fo
r
a
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o
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g
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elf
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R
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kh
r
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1751
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1
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si
w
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a.
s
u
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d
s
u
ar
e
th
e
α
-
a
x
i
s
an
d
β
-
a
x
is
co
m
p
o
n
e
n
t o
f
th
e
s
tato
r
p
h
ase
v
o
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e
s
p
ac
e
-
v
ec
to
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;
b.
s
i
an
d
s
i
ar
e
th
e
α
-
a
x
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s
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d
β
-
a
x
is
co
m
p
o
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e
n
t o
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th
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s
tato
r
p
h
ase
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r
r
en
t sp
ac
e
-
v
ec
to
r
;
c.
r
i
an
d
r
i
ar
e
th
e
α
-
a
x
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s
an
d
β
-
a
x
is
co
m
p
o
n
e
n
t o
f
th
e
r
o
to
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p
h
ase
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r
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en
t sp
ac
e
-
v
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to
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;
d.
s
R
an
d
r
R
ar
e
th
e
s
tato
r
an
d
r
o
to
r
r
e
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is
ta
n
ce
,
r
esp
ec
tiv
el
y
;
e.
s
L
,
r
L
an
d
m
L
ar
e
th
e
s
tato
r
in
d
u
c
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ce
,
th
e
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in
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c
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m
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etiz
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cta
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ce
,
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f.
r
is
th
e
r
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lar
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g.
is
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k
ag
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f
ac
to
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;
h.
r
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an
d
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ar
e
th
e
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ax
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s
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ax
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s
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m
p
o
n
en
t
o
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th
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o
lta
g
e
in
itiall
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n
d
u
ce
d
d
u
e
to
th
e
r
esi
d
u
al
r
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to
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f
lu
x
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n
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s
r
r
r
+
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s
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s
u
m
i
r
i
s
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s
L
r
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r
R
m
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Fig
u
r
e
2
.
T
h
e
E
q
u
iv
alen
t
S
c
h
e
m
atic
o
f
t
h
e
SEI
G
T
h
e
eq
u
atio
n
th
at
d
escr
ib
e
th
e
v
o
ltag
e
i
n
th
e
D
C
li
n
k
is
:
0
0
1
dc
dc
t
dc
u
dt
i
C
u
(
2
)
Fig
u
r
e
2
s
h
o
w
s
t
h
e
co
n
v
en
tio
n
al
SEI
G
eq
u
iv
ale
n
t c
ir
c
u
it
d
es
cr
ib
ed
b
y
(
1
)
.
An
ex
p
er
i
m
e
n
tal
te
s
t
o
f
th
e
m
ac
h
in
e
o
b
j
ec
t
o
f
th
e
s
tu
d
y
w
a
s
h
as
g
iv
e
n
m
a
g
n
etiza
tio
n
cu
r
v
e
w
h
ich
r
ep
r
esen
ts
T
h
e
v
ar
iat
io
n
o
f
m
a
g
n
et
izin
g
i
n
d
u
c
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ce
(
L
m
)
i
n
f
u
n
cti
o
n
o
f
p
h
a
s
e
v
o
ltag
e
f
o
r
in
d
u
ctio
n
m
ac
h
in
e
[
1
4
].
2
.
2
.
T
hree
P
ha
s
e
AC
/
DC
C
o
nv
er
t
er
A
r
ec
ti
f
ier
is
an
elec
tr
ical
m
a
ch
in
e
t
h
at
tr
an
s
f
er
s
A
C
c
u
r
r
en
t,
w
h
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h
h
a
s
a
s
i
n
u
s
o
id
al
w
a
v
ef
o
r
m
s
,
to
DC
c
u
r
r
en
t,
w
h
ic
h
f
lo
w
s
i
n
o
n
l
y
o
n
e
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ir
ec
t
io
n
.
T
h
e
cir
c
u
it
is
co
m
p
o
s
ed
o
f
6
d
io
d
es:
a
g
r
o
u
p
o
f
t
h
r
ee
i
n
th
e
to
p
an
d
a
g
r
o
u
p
o
f
th
r
ee
in
t
h
e
b
o
tto
m
as
s
h
o
w
n
in
Fig
u
r
e
3
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
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C
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Vo
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7
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No
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4
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g
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1
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9
1752
Fig
u
r
e
3
.
T
h
r
ee
-
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ase
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n
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ter
2
.
3
.
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hree
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ph
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s
e
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urce
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nv
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p
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ter
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o
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ic
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h
at
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n
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ts
D
C
cu
r
r
en
t
to
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cu
r
r
en
t
.
T
h
e
VSI
h
as
t
h
r
ee
-
s
w
itc
h
in
g
s
tate
s
as
d
escr
ib
ed
in
T
ab
le
1
,
o
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tain
ed
b
y
d
i
f
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er
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t
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er
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u
tat
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o
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h
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s
Sa,
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a
n
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r
s
u
p
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g
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e
p
o
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e
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ad
s
.
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e
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s
e
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th
r
ee
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r
ce
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er
ter
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h
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is
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ep
r
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ted
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th
e
Fi
g
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r
e
4
,
I
t
is
u
s
ed
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en
er
ate
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d
k
ee
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e
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atin
g
o
u
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t
v
o
lta
g
e
at
a
f
ix
ed
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al
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e
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2
2
0
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m
s
)
,
w
it
h
5
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f
r
eq
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en
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y
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d
w
it
h
d
if
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er
en
t
s
t
y
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es
o
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ad
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i
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i
s
o
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ted
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o
w
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en
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n
s
y
s
te
m
s
.
W
e
n
o
te
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at
t
h
e
o
u
tp
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ts
(
v
o
ltag
e
a
n
d
cu
r
r
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t)
d
ep
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d
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o
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th
e
s
c
h
e
m
e
o
f
t
h
e
co
n
tr
o
l
p
er
m
u
tatio
n
s
s
ta
te
o
u
t
p
u
ts
.
Fig
u
r
e
4
.
T
h
r
ee
-
p
h
ase
DC
/
AC
in
v
er
ter
T
ab
le
1
.
T
h
e
s
w
itc
h
i
n
g
s
tates
o
f
th
e
i
n
v
er
ter
3.
P
RO
P
O
SE
D
SCH
E
M
E
O
F
CO
NT
RO
L
:
P
I
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G
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CO
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H
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ates
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AL
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er
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d
w
h
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n
t
h
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d
if
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n
t k
in
d
o
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n
s
tr
ain
t: th
e
v
ar
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n
i
n
th
e
w
i
n
d
s
p
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d
; a
n
d
s
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ch
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g
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n
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h
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ap
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m
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.
4
.
1
.
Re
s
po
ns
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o
f
t
h
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Sy
s
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m
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nd
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r
t
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Va
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o
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n
w
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a
ca
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k
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f
5
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ca
r
r
ied
o
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s
i
m
u
la
ti
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o
f
t
h
e
f
o
llo
w
in
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p
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atin
g
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eg
i
m
e:
we
ch
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w
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esp
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tiv
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g
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ch
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4
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2
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f
t
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s
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m
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nd
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f
t
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oad
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h
e
r
esu
lt o
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tai
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ed
f
r
o
m
r
u
n
n
in
g
s
i
m
u
latio
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e
s
h
o
w
n
i
n
Fi
g
u
r
e
7
,
t
h
e
p
er
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o
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m
a
n
ce
o
f
th
e
s
y
s
te
m
i
s
test
ed
u
n
d
er
lo
a
d
v
ar
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n
(
a
r
esis
ti
v
e
lo
ad
)
w
i
th
a
r
o
to
r
s
p
e
ed
v
ar
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n
o
f
1
2
0
0
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p
m
.
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h
en
w
e
k
ee
p
th
e
lo
ad
at
co
n
s
ta
n
t v
al
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a
n
d
w
e
c
h
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g
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th
e
s
et.
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n
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v
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e
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th
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o
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d
u
r
i
n
g
t
h
e
ti
m
e
f
r
o
m
0
s
to
1
0
s
.
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h
e
s
im
u
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r
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lt
s
s
h
o
w
t
h
at
th
e
o
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t
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ter
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s
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n
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th
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n
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.
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n
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ir
m
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s
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te
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ag
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d
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s
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h
m
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n
d
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l
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.
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u
r
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7
.
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t
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s
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u
n
d
er
lo
ad
ch
an
g
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f
r
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m
5
0
0
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to
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.
3
.
S
et
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ng
e
un
der
L
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n
ditio
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I
n
th
is
te
s
t
w
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k
ee
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th
e
lo
ad
at
5
0
0
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,
th
en
w
e
ch
a
n
g
e
t
h
e
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ef
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en
ce
v
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lu
e
o
f
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m
s
at
1
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2
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1
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d
9
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Fig
u
r
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8
s
h
o
w
s
t
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e
o
u
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v
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l
tag
e
(
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s
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w
h
e
n
th
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t c
h
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n
g
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Ag
ai
n
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n
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n
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ller
s
h
o
w
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s
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th
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e
m
a
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it
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o
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d
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n
th
e
r
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h
t c
o
n
d
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s
o
f
r
ap
id
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I
J
E
C
E
I
SS
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8708
d
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w
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n
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XP
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R
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.
RE
F
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R
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NC
E
S
[1
]
O
m
id
A
la
v
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,
Be
h
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a
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V
a
tan
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o
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to
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sia
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n
d
In
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3
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n
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.
3
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5
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p
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.
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2
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.
[2
]
A
.
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Ib
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S
e
l
f
-
Ex
c
it
e
d
In
d
u
c
ti
o
n
G
e
n
e
ra
to
r
a
s
Re
g
u
late
d
DC
P
o
w
e
r
S
u
p
p
ly
f
o
r
H
y
b
rid
Re
n
e
w
a
b
le
En
e
rg
y
S
y
st
e
m
s”
,
W
S
EA
S
T
ra
n
s.
o
n
Circ
u
it
s
a
n
d
S
y
ste
ms
,
v
o
l.
4
,
n
o
.
1
1
,
No
v
e
m
b
e
r
2
0
0
5
,
p
p
.
1
4
5
7
–
1
4
6
3
.
[3
]
M
.
S
a
sik
u
m
a
r,
R.
M
a
d
h
u
su
d
h
a
n
a
n
,
S
.
Ch
e
n
t
h
u
r
P
a
n
d
ian
,
“
M
o
d
e
li
n
g
a
n
d
A
n
a
l
y
sis
o
f
C
a
sc
a
d
e
d
V
S
I
f
o
r
W
in
d
Driv
e
n
Iso
late
d
S
q
u
irrel
Ca
g
e
I
n
d
u
c
t
io
n
G
e
n
e
ra
to
rs”
,
IEE
E
Re
c
e
n
t
A
d
v
a
n
c
e
in
S
p
a
c
e
T
e
c
h
n
o
lo
g
y
a
n
d
c
li
m
a
te
Ch
a
n
e
,
p
p
.
4
2
4
-
4
2
9
,
2
0
1
0
.
[4
]
J.
Dix
o
n
,
L
.
M
o
ra
n
,
“
M
u
l
ti
lev
e
l
In
v
e
rte
r,
b
a
se
d
o
n
M
u
l
ti
-
sta
g
e
Co
n
n
e
c
ti
o
n
o
f
T
h
re
e
-
lev
e
l
Co
n
v
e
rte
rs
S
c
a
led
in
Po
we
r o
f
T
h
re
e
”
,
IE
EE
2
8
t
h
A
n
n
u
a
l
Co
n
f
e
re
n
c
e
o
f
th
e
In
d
u
strial
E
lec
tro
n
ics
S
o
c
iety
,
p
p
.
8
8
6
-
8
9
1
,
2
0
0
2
.
[5
]
A
sh
w
a
n
i
Ku
m
a
r
S
h
a
rm
a
,
“
S
tu
d
y
o
f
W
in
d
T
u
rb
in
e
b
a
se
d
S
EIG
u
n
d
e
r
Ba
lan
c
e
d
/Un
b
a
lan
c
e
d
L
o
a
d
s
a
n
d
Ex
c
it
a
ti
o
n
”
,
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
E
lec
trica
l
a
n
d
C
o
mp
u
ter
En
g
in
e
e
rin
g
(
IJ
ECE
)
,
v
ol
.
2
,
n
o
.
3
,
2
0
1
2
p
a
g
e
s 3
5
3
-
3
7
0
.
[6
]
A
.
V
a
rsc
h
a
v
s
k
y
,
J.
Dix
o
n
,
M
.
R
o
tella,
L
.
M
o
ra
n
,
“
Ca
sc
a
d
e
d
Ni
n
e
-
lev
e
l
In
v
e
rte
r
fo
r
Hy
b
rid
-
se
rie
s
Active
Po
we
r
Fi
lt
e
r,
u
si
n
g
I
n
d
u
stria
l
C
o
n
tro
l
ler
”
,
IEE
E
T
ra
n
sa
c
ti
o
n
s o
n
In
d
u
str
ial
El
e
c
tro
n
ics
,
v
o
l.
5
7
,
p
p
.
2
7
6
1
-
2
7
6
7
,
2
0
1
0
.
[7
]
F
.
P
.
Zen
g
,
G
.
H.
T
a
n
,
J.Z
.
W
a
n
g
,
Y.C.
Ji
,
“
No
v
e
l
S
in
g
le
-
P
h
a
se
-
F
i
v
e
-
L
e
v
e
l
V
o
lt
a
g
e
-
S
o
u
rc
e
In
v
e
rter
f
o
r
th
e
S
h
u
n
t
A
c
ti
v
e
P
o
w
e
r
F
il
ter”
,
IET
Po
we
r
El
e
c
tro
n
ics
, v
o
l.
3
,
p
p
.
4
8
0
-
4
8
9
,
2
0
1
0
.
[8
]
X
.
Q.
G
u
o
,
W
.
Y.
W
u
,
H.R.
G
u
,
“
M
o
d
e
li
n
g
a
n
d
S
im
u
latio
n
o
f
Di
re
c
t
Ou
tp
u
t
Cu
rre
n
t
Co
n
tro
l
f
o
r
L
C
L
-
In
terf
a
c
e
d
G
rid
-
Co
n
n
e
c
ted
I
n
v
e
rters
w
it
h
P
a
ra
ll
e
l
P
a
ss
iv
e
D
a
m
p
in
g
”
,
S
imu
la
t
io
n
M
o
d
e
ll
i
n
g
Pra
c
ti
c
e
a
n
d
T
h
e
o
ry
,
v
o
l.
1
8
,
p
p
.
946
-
9
5
6
,
2
0
1
0
.
[9
]
A
.
F
.
Zo
b
a
a
,
“
Vo
lt
a
g
e
Ha
rm
o
n
ic
Re
d
u
c
ti
o
n
f
o
r
Ra
n
d
o
m
l
y
T
i
m
e
-
V
a
r
y
in
g
S
o
u
rc
e
Ch
a
ra
c
teristics
a
n
d
V
o
l
tag
e
H
a
r
m
o
n
ics
”
,
IEE
E
T
r
a
n
sa
c
ti
o
n
s
o
n
P
o
we
r De
li
v
e
ry
, v
o
l.
2
1
,
p
p
.
8
1
6
-
8
2
2
,
2
0
0
6
.
[1
0
]
O.O.
M
e
n
g
i,
I.
H.
A
lt
a
s
,
“
F
u
z
z
y
Lo
g
ic
Co
n
tro
l
f
o
r
a
W
in
d
/Batter
y
Re
n
e
wa
b
le
En
e
rg
y
P
ro
d
u
c
ti
o
n
S
y
ste
m
”
,
T
u
rk
ish
J
o
u
rn
a
l
o
f
El
e
c
trica
l
En
g
in
e
e
rin
g
&
Co
mp
u
ter
S
c
ien
c
e
s
, v
o
l.
2
0
,
p
p
.
1
8
7
-
2
0
6
,
2
0
1
2
.
[1
1
]
M
.
Ba
ra
ra
,
A
.
Ch
im
e
z
ie,
N.
A
l
S
a
y
a
ri,
A
.
Be
ig
,
K.H.
A
lh
o
sa
n
i,
A
.
A
b
b
o
u
,
M
.
A
k
h
e
rra
z
,
“
Ha
rd
w
a
r
e
Im
p
le
m
e
n
tatio
n
o
f
V
o
lt
a
g
e
Co
n
tro
l
f
o
r
S
e
lf
Ex
c
it
e
d
In
d
u
c
ti
o
n
G
e
n
e
ra
to
r
Us
e
d
i
n
S
m
a
ll
P
o
w
e
r
G
e
n
e
ra
ti
o
n
”
,
In
ter
n
a
t
io
n
a
l
Rev
iew
o
f
El
e
c
trica
l
En
g
in
e
e
rin
g
(
I.
R.
E.
E
.
)
,
v
o
l.
1
0
,
p
p
.
5
5
3
-
5
6
0
,
2
0
1
5
.
[1
2
]
G
.
H.
Zen
g
,
T
.
W
.
Ra
s
m
u
s
se
n
,
“
De
si
g
n
o
f
Cu
rr
e
n
t
-
Co
n
tro
ll
e
r
wit
h
PR
-
Reg
u
la
to
r
fo
r
L
CL
-
Fi
l
t
e
r
b
a
se
d
Gr
id
-
Co
n
n
e
c
ted
C
o
n
v
e
rte
r”
,
2
n
d
IE
EE
In
tern
a
ti
o
n
a
l
S
y
m
p
o
siu
m
o
n
P
o
w
e
r
El
e
c
tro
n
ics
f
o
r
Distrib
u
ted
G
e
n
e
ra
ti
o
n
S
y
st
e
m
s,
p
p
.
4
9
0
-
4
9
4
,
2
0
1
0
.
[1
3
]
M
.
Ba
šić
,
D.
V
u
k
a
d
in
o
v
ić,
M
.
P
o
li
ć
,
“
F
u
z
z
y
DC
-
V
o
lt
a
g
e
Co
n
tro
ll
e
r
f
o
r
a
V
e
c
to
r
Co
n
tro
ll
e
d
S
tan
d
-
A
lo
n
e
In
d
u
c
ti
o
n
G
e
n
e
r
a
to
r”
,
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
Of
Circ
u
it
s,
S
y
ste
ms
a
n
d
S
i
g
n
a
l
Pro
c
e
ss
in
g
,
v
o
l
.
7,
n
o
.
3
,
2
0
1
3
.
[1
4
]
M
.
Ba
ra
ra
,
A
.
A
b
b
o
u
,
M
.
A
k
h
e
r
ra
z
,
A
.
Be
n
n
a
se
r,
D.
T
a
ib
i
,
’’Co
m
p
a
ra
ti
v
e
S
tu
d
y
o
f
P
I
a
n
d
F
u
z
z
y
DC
V
o
lt
a
g
e
Co
n
tr
o
l
f
o
r
a
W
in
d
En
e
rg
y
Co
n
v
e
rsio
n
S
y
ste
m
’’,
In
ter
n
a
ti
o
n
a
l
Rev
iew
o
n
M
o
d
e
ll
i
n
g
a
n
d
S
im
u
la
ti
o
n
s
(
I.
RE
.
M
O.S
.
)
,
v
o
l.
6
,
n
o
. 2
,
A
p
ril
2
0
1
3
.
[1
5
]
T
.
L
.
T
ian
g
,
D.
Ish
a
k
,
“
M
o
d
e
li
n
g
a
n
d
S
im
u
latio
n
o
f
De
a
d
b
e
a
t
-
b
a
se
d
P
I
C
o
n
tr
o
ll
e
r
in
a
S
in
g
le
-
P
h
a
se
H
-
Brid
g
e
I
n
v
e
rter
f
o
r
S
tan
d
-
a
lo
n
e
A
p
p
li
c
a
ti
o
n
s”
,
T
u
rk
ish
J
o
u
rn
a
l
o
f
E
lec
trica
l
E
n
g
i
n
e
e
rin
g
&
Co
mp
u
ter
S
c
ie
n
c
e
s
,
p
p
.
4
3
-
5
6
,
2
0
1
4
.
[1
6
]
A
.
W
.
L
e
e
d
y
,
R.
M
.
N
e
l
m
s
,
“
A
G
e
n
e
ra
l
M
e
th
o
d
u
se
d
t
o
Co
n
d
u
c
t
a
Ha
r
m
o
n
ic
A
n
a
l
y
sis
o
n
Ca
rrier
-
b
a
se
d
P
u
lse
w
id
th
M
o
d
u
latio
n
I
n
v
e
rters
”
,
S
imu
l
a
ti
o
n
, v
o
l.
8
7
,
p
p
.
2
0
5
-
2
2
0
,
2
0
1
0
.
[1
7
]
R.
El
A
k
h
rif
,
A
.
A
b
b
o
u
,
M
.
Ba
r
a
ra
,
Y.
M
a
jd
o
u
b
,
“
M
o
d
e
li
n
g
a
n
d
S
imu
l
a
ti
o
n
f
o
r
a
T
h
re
e
-
p
h
a
se
V
o
lt
a
g
e
S
o
u
rc
e
In
v
e
rte
r
Fed
b
y
a
S
e
lf
-
Exc
it
e
d
I
n
d
u
c
t
io
n
Ge
n
e
ra
t
o
r”
,
IE
EE
2
0
1
6
7
t
h
I
n
tern
a
ti
o
n
a
l
Re
n
e
w
a
b
le
En
e
rg
y
c
o
n
g
re
ss
,
2
0
1
6
.
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