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Com
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c
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Vo
l
.
25
,
N
o
.
2
,
F
e
b
r
ua
r
y
20
22
,
pp.
690
~
696
I
S
S
N:
2502
-
4752,
DO
I
:
10
.
11591/i
j
e
e
c
s
.
v
25
.i
2
.
pp
690
-
696
690
Jou
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page
:
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tp:
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[
1]
-
[
11]
.
Hi
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hi
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tual
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c
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[
12
]
-
[
1
4
]
.
M
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v
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I
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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I
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mi
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h
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t
.
RE
F
E
R
E
N
CE
S
[
1]
A
ja
mi
,
H
.
A
r
di
,
a
nd
A
.
F
a
r
a
kho
r
,
“
A
N
o
ve
l
H
ig
h
S
t
e
p
-
up
D
C
/DC
C
o
nve
r
t
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r
B
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o
n
I
nt
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I
ndu
c
t
o
r
a
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S
w
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c
h
e
d
-
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pa
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it
or
T
e
c
hn
iq
ue
s
f
o
r
R
e
ne
w
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bl
e
E
n
e
r
g
y
A
ppl
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c
a
ti
o
ns
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on
P
ow
e
r
E
le
c
tr
oni
c
s
,
v
o
l.
30
,
n
o.
8,
pp.
4255
-
4263, 2015,
do
i
:
10.1109/
T
P
E
L
.2014.2360495
.
[
2]
K
.
T
s
e
ng,
C
.
H
ua
ng
,
a
nd
C
.
C
he
ng,
“
A
H
ig
h
S
t
e
p
-
U
p
C
onve
r
t
e
r
w
it
h
V
o
lt
a
g
e
-
M
ul
ti
pl
i
e
r
M
o
dul
e
s
f
or
S
us
ta
in
a
bl
e
E
n
e
r
g
y
A
ppl
ic
a
ti
o
ns
,
”
I
E
E
E
J
our
nal
of
E
m
e
r
gi
ng
and
Se
le
c
te
d
T
opi
c
s
in
P
ow
e
r
E
le
c
tr
oni
c
s
,
vo
l.
3
,
n
o
.
4,
pp.
1100
-
1108,
2015,
do
i
:
10.1109/J
E
S
T
P
E
.2015.2404943
[
3]
M
. S
a
hoo
a
nd K
. S
.
K
uma
r
, “
H
ig
h ga
in
s
t
e
p up DC
-
D
C
c
o
n
ve
r
t
e
r
f
or
D
C
mi
c
r
o
-
gr
id
a
ppl
i
c
a
ti
o
n
,
”
In
7t
h
I
nt
e
r
nat
io
nal
C
onf
e
r
e
nc
e
on I
nf
or
m
at
io
n and
A
ut
om
at
io
n f
o
r
Sus
ta
in
abi
li
ty
,
2014
,
pp.
1
-
5,
do
i
:
10.1109/
I
C
I
A
F
S
.2014.7069600.
[
4]
H
.
L
iu
,
F
.
L
i
,
a
nd
J
.
A
i,
“
A
N
ove
l
H
ig
h
S
t
e
p
-
U
p
D
ua
l
S
w
it
c
h
e
s
C
o
nve
r
te
r
w
it
h
C
o
upl
e
d
I
ndu
c
t
o
r
a
nd
V
o
lt
a
g
e
M
ul
ti
pl
i
e
r
C
e
ll
f
or
a
R
e
ne
w
a
bl
e
E
n
e
r
g
y
S
y
s
te
m
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on
P
o
w
e
r
E
le
c
tr
oni
c
s
,
v
o
l.
31
,
n
o
.
7,
pp.
4974
-
4983,
2016,
do
i
:
10.1109/
T
P
E
L
.2015.2478809.
[
5]
F
a
r
z
in
,
M
.
E
te
ma
di
,
a
nd
A
.
B
a
ghr
a
mi
a
n,
“
A
N
e
w
H
ig
h
-
S
te
p
-
U
p
D
C
-
D
C
C
o
n
v
e
r
te
r
us
in
g
T
h
r
e
e
-
W
in
di
ngs
T
r
a
ns
f
o
r
m
e
r
a
nd
S
of
t
-
S
w
it
c
hi
ng
f
or
us
e
in
P
ho
t
ovo
lt
a
i
c
S
y
s
te
ms
,
”
I
n
10t
h
I
nt
e
r
nat
io
nal
P
o
w
e
r
E
le
c
tr
oni
c
s
,
D
r
iv
e
Sy
s
te
m
s
and
T
e
c
hnol
o
gi
e
s
C
onf
e
r
e
nc
e
(
P
E
D
ST
C
)
,
2019
,
pp.
207
-
212, 2019,
d
o
i
:
10.1109/
P
E
D
S
T
C
.2019.8697846.
[
6]
M
.
A
bba
s
i
a
nd
J
.
L
a
m,
“
A
B
a
la
nc
e
d,
U
ni
t
y
P
o
w
e
r
F
a
c
t
or
,
3
-
p
ha
s
e
B
r
id
g
e
l
e
s
s
A
C
/DC
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te
p
-
up
T
r
a
ns
f
o
r
m
e
r
-
l
e
s
s
C
o
n
ve
r
t
e
r
w
it
h
M
a
gne
ti
c
-
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o
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e
d
S
of
t
-
S
w
it
c
he
d
S
t
e
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-
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e
c
ti
f
ie
r
s
f
or
W
in
d
F
a
r
m
w
it
h
a
M
V
D
C
G
r
id
,
”
In
2019
I
E
E
E
A
ppl
ie
d
P
o
w
e
r
E
le
c
tr
oni
c
s
C
on
f
e
r
e
nc
e
and E
x
po
s
it
io
n (
A
P
E
C
)
,
2019,
pp.
121
2
-
1219,
do
i
:
10.1109/AP
E
C
.2019.8722250.
[
7]
M
. L
.
A
lg
ha
y
th
i,
R
. M
.
O
’
C
o
nn
e
ll
,
a
nd N
.
E
. I
s
la
m., “
D
e
s
ig
n
of
a
H
ig
h S
t
e
p
-
up
D
C
-
D
C
P
o
w
e
r
C
o
n
ve
r
t
e
r
w
i
th
V
o
lt
a
ge
M
ul
ti
p
li
e
r
C
e
ll
s
a
nd
R
e
du
c
e
d
L
o
s
s
e
s
o
n
S
e
mi
c
o
ndu
c
t
o
r
s
f
or
P
h
o
t
ovo
l
ta
ic
S
y
s
t
e
ms
,
”
In
2019
I
E
E
E
E
le
c
tr
ic
Shi
p
T
e
c
hnol
ogi
e
s
Sy
m
pos
iu
m
(
E
ST
S)
,
2019
,
pp.
214
-
218,
d
o
i
:
10.
1109/E
S
T
S
.2019.8847808.
[
8]
M
.
F
o
r
o
u
z
e
s
h,
Y
.
S
he
n,
K
.
Y
a
r
i,
Y
.
P
.
S
iwa
ko
ti
,
a
nd
F
.
B
la
a
bj
e
r
g,
“
H
ig
h
-
E
f
f
i
c
i
e
nc
y
H
ig
h
S
t
e
p
-
U
p
D
C
–
D
C
C
o
nve
r
t
e
r
w
it
h
D
ua
l
C
o
upl
e
d
I
ndu
c
t
o
r
s
f
or
G
r
id
-
C
o
nne
c
t
e
d
P
h
o
t
ovo
lt
a
i
c
S
y
s
t
e
m
s
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on
P
ow
e
r
E
le
c
tr
oni
c
s
,
vo
l.
3
3
,
n
o
.
7,
pp.
5967
-
5982, 2018,
do
i
:
10.1109/
T
P
E
L
.2017.2746750.
[
9]
T
or
ka
n
a
nd
M
.
E
hs
a
ni
,
“
A
N
o
ve
l
N
o
ni
s
o
la
t
e
d
Z
-
S
o
ur
c
e
D
C
–
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C
C
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nve
r
t
e
r
f
o
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h
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t
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ta
ic
A
ppl
i
c
a
ti
o
ns
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on
I
ndus
tr
y
A
ppl
ic
at
io
ns
,
vo
l.
54
, n
o
.
5,
pp.
4574
-
4583, 2018,
d
o
i
:
10.1109/
T
I
A
.2018.2833821.
[
10]
W
.
H
a
s
s
a
n,
D
.
D
.
L
u
,
a
nd
W
.
X
ia
o
,
“
S
in
gl
e
-
S
w
it
c
h
H
ig
h
S
t
e
p
-
U
p
D
C
–
D
C
C
o
n
ve
r
te
r
w
it
h
L
o
w
a
nd
S
te
a
d
y
S
w
it
c
h
V
o
lt
a
ge
S
tr
e
s
s
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on I
ndus
tr
ia
l
E
le
c
tr
oni
c
s
,
v
o
l.
66
, n
o
.
12,
pp.
9326
-
9338, 2019,
d
o
i
:
10.1109/
T
I
E
.201
9.2893833.
[
11]
L
.
S
c
hmi
t
z
,
D
.
C
.
M
a
r
ti
ns
,
a
nd
R
.
F
.
C
o
e
lh
o
,
“
G
e
n
e
r
a
li
z
e
d
H
i
gh
S
te
p
-
U
p
D
C
-
D
C
B
oo
s
t
-
B
a
s
e
d
C
o
n
v
e
r
te
r
w
it
h
G
a
in
C
e
ll
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on C
i
r
c
ui
ts
and Sy
s
te
m
s
,
v
ol
.
64
, n
o
.
2,
pp.
480
-
4
93,
2016,
do
i
:
10.1109/
T
C
S
I
.2016.2603782.
[
12]
S
.
C
he
n,
M
.
L
a
o
,
Y
.
H
s
ie
h,
T
.
L
ia
ng
,
a
nd
K
.
C
he
n,
“
A
N
o
ve
l
S
w
it
c
he
d
-
C
o
upl
e
d
-
I
ndu
c
t
o
r
D
C
–
D
C
S
te
p
-
U
p
C
o
n
ve
r
t
e
r
a
nd
I
ts
D
e
r
i
v
a
ti
ve
s
,
”
I
E
E
E
T
r
ans
ac
ti
ons
on I
ndus
tr
y
A
ppl
ic
at
io
ns
,
v
o
l.
51
, no
.
1,
pp.
309
-
314, 2015,
d
o
i
:
10.1109/
T
I
A
.2014.2332642
.
[
13]
H
.
L
iu
a
n
d
F
.
L
i,
“
N
o
v
e
l
H
i
gh
S
te
p
-
U
p
D
C
–
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C
C
o
nv
e
r
te
r
w
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th
a
n
A
c
t
iv
e
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o
up
le
d
-
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nd
uc
to
r
N
e
two
r
k
f
o
r
a
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u
s
t
a
i
n
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b
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E
ne
r
g
y
S
y
s
te
m
,
”
I
E
E
E
T
r
an
s
a
c
ti
o
n
s
on
P
ow
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r
E
l
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c
t
r
o
ni
c
s
,
v
o
l.
30
,
no
.
12
,
p
p.
6
47
6
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6
48
2,
2
01
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i
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E
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5.
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14]
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.
M
a
c
V
e
i
gh
,
A
.
H
.
Al
-
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m
a
r
i,
J.
W
e
l
s
h
,
M
.
Z
.
A
h
me
d,
a
nd
P
.
D
a
v
e
y
,
“
A
n
a
d
a
p
ta
bl
e
in
te
r
le
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-
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C
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o
nv
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te
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n
2
0
16
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16
th
I
nt
e
r
na
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r
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d
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l
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E
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[
15]
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.
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a
t
h
y
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.
M
.
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s
hi
,
M
.
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.
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a
l
la
l
,
a
nd
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.
B
.
S
hi
to
le
,
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[
16]
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-
696
696
[
17]
M
.
M
in
a
m
i
a
n
d
K
.
T
o
mo
e
da
,
“
A
n
A
na
l
y
s
i
s
of
O
pe
r
a
ti
o
n
i
n
S
i
ng
le
-
S
w
it
c
h
H
ig
h
S
te
p
-
u
p
D
C
-
D
C
C
o
nv
e
r
te
r
w
i
th
T
hr
e
e
-
w
in
di
ng
C
o
up
le
d
I
n
duc
to
r
,
”
In
20
19
I
E
E
E
A
pp
li
e
d
P
ow
e
r
E
l
e
c
t
r
o
ni
c
s
C
o
n
fe
r
e
n
c
e
an
d
E
x
po
s
i
ti
on
(
A
P
E
C
)
,
20
19
,
p
p.
2
13
5
-
2
13
7
,
do
i
:
10
.1
10
9/
A
P
E
C
.
20
19
.8
72
23
20
.
[
18]
S
. C
he
n
, S
.
Y
a
ng
, C
.
H
ua
ng
,
a
nd
Y
.
C
he
n
,
“
H
i
gh
S
te
p
-
U
p
I
nt
e
r
le
a
v
e
d
C
o
nv
e
r
te
r
w
it
h
T
hr
e
e
-
W
in
di
ng
C
o
up
le
d
I
n
duc
to
r
s
a
nd
V
o
lt
a
ge
M
u
lt
ip
l
ie
r
C
e
ll
s
,
”
In
2
01
9
I
E
E
E
I
n
te
r
na
ti
on
al
C
on
fe
r
e
n
c
e
o
n
I
nd
u
s
t
r
ia
l
T
e
c
hn
ol
og
y
(
I
C
I
T
)
,
2
01
9,
p
p
.
45
8
-
46
3
,
do
i
:
1
0
.1
10
9/
I
C
I
T
.2
01
9.
87
55
21
9.
[
19]
K
.
I
.
H
w
u
a
nd
Y
.
T
.
Y
a
u,
“
H
ig
h
S
te
p
-
U
p
C
o
nv
e
r
te
r
B
a
s
e
d
o
n
C
o
up
li
ng
I
n
duc
to
r
a
n
d
B
o
o
ts
tr
a
p
C
a
p
a
c
it
o
r
s
w
it
h
A
c
ti
v
e
C
l
a
mpi
ng
,
”
I
E
E
E
T
r
an
s
ac
ti
on
s
on
P
ow
e
r
E
l
e
c
t
r
o
ni
c
s
,
v
o
l.
29
,
no
.
6,
p
p.
2
65
5
-
26
60
,
20
14
,
do
i
:
10
.1
10
9/
T
P
E
L
.20
13
.2
28
93
87
.
[
20]
Y
.
C
h
a
n
g a
nd
J
.
L
in
,
“
M
o
de
li
n
g
a
nd
i
mp
le
me
nt
a
t
io
n
o
f
h
ig
h
-
g
a
in
c
o
up
le
d
-
in
duc
to
r
s
w
i
tc
he
d
-
c
a
p
a
c
i
to
r
s
te
p
-
u
p D
C
-
D
C
c
o
nv
e
r
te
r
,
”
I
n
2
0
18
3
r
d
I
nt
e
r
n
at
io
na
l
C
o
n
fe
r
e
n
c
e
on
C
on
t
r
o
l
a
nd
R
ob
ot
i
c
s
E
ng
in
e
e
r
i
ng
(
I
C
C
R
E
)
,
20
18
,
p
p.
13
5
-
13
8
,
do
i
:
1
0
.1
10
9/
I
C
C
R
E
.
20
18
.8
37
64
49
.
[
21]
S
.
S
a
le
h
i,
N
.
Z
a
he
di
,
R
.
K
he
i
r
o
ll
a
hi
,
a
n
d
E
.
B
a
b
a
e
i
,
“
U
l
tr
a
-
H
ig
h
S
te
p
-
u
p
D
C
-
D
C
C
o
nv
e
r
te
r
B
a
s
e
d
o
n
S
w
i
tc
he
d
I
nd
uc
to
r
-
C
a
p
a
c
i
to
r
C
e
ll
s
,
”
In
20
19
1
0t
h
I
n
te
r
na
ti
o
na
l
P
ow
e
r
E
le
c
t
r
on
i
c
s
,
D
r
i
v
e
S
y
s
t
e
m
s
an
d
T
e
c
hn
ol
o
gi
e
s
C
on
fe
r
e
nc
e
(
P
E
D
ST
C
)
,
2
01
9,
p
p.
3
67
-
3
7
2,
do
i
:
10
.1
10
9/
P
E
D
S
T
C
.2
01
9.
86
97
84
1.
[
22]
T
.
S
.
A
mb
a
ga
h
a
w
a
t
ht
h
a
,
D
.
R
.
N
a
y
a
n
a
s
ir
i
,
a
n
d
S
.
D
.
G
.
J
a
y
a
s
i
ng
he
,
“
U
lt
r
a
-
H
i
gh
S
te
p
-
U
p
D
C
-
D
C
C
o
nv
e
r
te
r
F
a
mi
ly
B
a
s
e
d
o
n
F
e
e
d
-
F
o
r
w
a
r
d
C
a
p
a
c
it
o
r
a
n
d
C
o
up
le
d
I
n
duc
to
r
,
”
I
n
20
18
I
E
E
E
2
7t
h
I
n
te
r
na
ti
on
al
S
y
m
p
o
s
i
um
on
I
nd
u
s
t
r
ia
l
E
l
e
c
t
r
o
ni
c
s
(
I
SI
E
)
,
20
1
8,
p
p
.
45
6
-
4
61
,
do
i
:
10
.1
10
9/
I
S
I
E
.2
01
8.
84
33
67
8.
[
23]
H
.
L
iu
,
F
.
L
i
,
a
nd
P
.
W
he
e
le
r
,
“
A
F
a
mi
l
y
o
f
D
C
–
D
C
C
o
nv
e
r
te
r
s
D
e
duc
e
d
f
r
o
m
I
m
pe
d
a
nc
e
S
o
ur
c
e
D
C
–
D
C
C
o
nv
e
r
te
r
s
f
o
r
H
i
gh
S
te
p
-
U
p
C
o
nv
e
r
s
io
n
,
”
I
E
E
E
T
r
an
s
a
c
ti
o
n
s
on
I
nd
u
s
t
r
i
al
E
l
e
c
t
r
o
ni
c
s
,
vo
l.
63
,
no
.
1
1,
p
p.
6
85
6
-
68
66
,
20
16
,
do
i
:
10
.1
10
9/
T
I
E
.
20
16
.2
58
28
2
6.
[
24]
Y
.
P
.
S
i
w
a
ko
ti
,
F
.
B
l
a
a
bj
e
r
g
,
a
n
d
P
.
C
hi
a
n
g
L
o
h,
“
H
ig
h
S
te
p
-
U
p
T
r
a
n
s
-
I
nv
e
r
s
e
(
T
x
−
1)
D
C
–
D
C
C
o
nv
e
r
te
r
f
o
r
t
he
D
i
s
tr
i
bu
te
d
G
e
ne
r
a
ti
o
n
S
y
s
te
m
,
”
I
E
E
E
T
r
an
s
ac
ti
on
s
o
n
I
nd
u
s
t
r
ia
l
E
l
e
c
t
r
o
ni
c
s
,
v
o
l.
63
,
no
.
7
,
pp
.
4
27
8
-
4
29
1,
2
01
6,
do
i
:
1
0
.1
10
9/
T
I
E
.2
01
6.
25
46
85
4.
[
25]
Y
.
Y
e
,
K
.
W
.
E
.
C
he
ng
,
a
nd
S
.
C
he
n
,
“
A
H
i
gh
S
te
p
-
up
P
W
M
D
C
-
D
C
C
o
nv
e
r
te
r
w
i
th
C
o
up
le
d
-
I
nd
uc
to
r
a
nd
R
e
s
o
na
nt
S
w
i
tc
he
d
-
C
a
p
a
c
it
o
r
,
”
I
E
E
E
T
r
a
n
s
a
c
t
io
n
s
on
P
ow
e
r
E
le
c
t
r
o
ni
c
s
,
v
o
l.
32
,
no.
10
,
pp
.
77
39
-
77
49
,
20
17
,
do
i
:
10
.1
10
9/
T
P
E
L
.20
16
.2
63
33
81
.
[
26]
H
.
W
u,
K
.
S
un
,
L
.
C
he
n,
L
.
Z
hu
,
a
nd
Y
.
X
in
g,
“
H
i
gh
S
te
p
-
U
p
/S
te
p
-
D
o
w
n
S
o
f
t
-
S
w
it
c
h
in
g
B
i
di
r
e
c
t
io
na
l
D
C
–
D
C
C
o
nv
e
r
te
r
w
it
h
C
o
up
le
d
-
I
nd
uc
to
r
a
n
d
V
o
lt
a
ge
M
a
tc
h
in
g
C
o
nt
r
o
l
f
o
r
E
ne
r
g
y
S
to
r
a
ge
S
y
s
te
m
s
,
”
I
E
E
E
T
r
a
n
s
a
c
t
io
n
s
o
n
I
nd
u
s
t
r
ia
l
E
l
e
c
t
r
o
ni
c
s
,
v
o
l.
63
,
no
.
5,
p
p.
2
89
2
-
2
90
3,
2
01
6,
do
i
:
1
0.
11
0
9
/T
I
E
.2
01
6.
25
17
06
3.
[
27]
M
.
A
.
S
a
lv
a
do
r
,
T
.
B
.
L
a
z
z
a
r
in
,
a
nd
R
.
F
.
C
o
e
l
ho
,
“
H
i
gh
S
te
p
-
U
p
D
C
–
D
C
C
o
nv
e
r
te
r
w
i
th
A
c
ti
v
e
S
w
i
tc
he
d
-
I
n
duc
to
r
a
nd
P
a
s
s
iv
e
S
w
i
tc
he
d
-
C
a
p
a
c
i
to
r
N
e
two
r
k
s
,
”
I
E
E
E
T
r
a
n
s
a
c
t
io
n
s
on
I
nd
us
t
r
ia
l
E
le
c
t
r
o
ni
c
s
,
v
o
l.
65
,
no
.
7,
v
o
l.
56
44
-
56
54
,
2
0
1
8,
do
i
:
1
0
.1
10
9/
T
I
E
.2
01
7.
27
82
23
9.
[
28]
S
.
T
.
F
.
Al
-
Z
u
b
a
id
i,
“
A
no
v
e
l
po
w
e
r
c
o
nv
e
r
s
io
n
a
p
pr
o
a
c
h
f
o
r
s
in
gl
e
p
ha
s
e
s
y
s
te
m
s
,
”
D
o
c
to
r
a
l
d
is
s
e
r
ta
ti
o
n
,
U
n
iv
e
r
s
i
t
y
o
f
P
l
y
mou
th
,
U
n
it
e
d
K
in
gdo
m
,
20
15
.
B
I
OG
RA
P
HI
E
S
OF
AU
T
HO
RS
D
r.
A
l
i
H
u
s
s
ei
n
Al
-
O
m
a
r
i
aw
ard
ed
Ph
.
D
.
i
n
e
l
ec
t
ri
c
al
e
n
g
i
n
ee
ri
n
g
fro
m
t
h
e
U
n
i
v
e
rs
i
t
y
o
f
Pl
y
mo
u
t
h
,
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n
i
t
e
d
K
i
n
g
d
o
m
i
n
2
0
1
8
.
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e
r
ece
i
v
e
d
M.
S
c
.
d
eg
r
ee
fro
m
t
h
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n
i
v
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rs
i
t
y
o
f
T
ec
h
n
o
l
o
g
y
(
I
raq
)
i
n
2
0
0
2
o
n
p
o
w
e
r
c
o
n
v
e
rt
e
r.
D
r
A
l
i
p
u
b
l
i
s
h
e
d
m
a
n
y
p
at
en
t
s
o
n
r
e
l
at
ed
D
C
c
o
n
v
e
rt
e
rs
.
Cu
rren
t
l
y
,
h
e
i
s
l
ec
t
u
r
i
n
g
at
Mu
s
t
an
s
i
ri
y
ah
u
n
i
v
e
rs
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t
y
i
n
I
raq
.
H
i
s
re
s
e
ar
ch
i
n
t
e
r
e
s
t
s
o
n
:
g
r
i
d
t
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co
n
v
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rt
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rs
,
SMPS,
mo
t
o
r
d
ri
v
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s
,
a
n
d
el
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c
v
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cl
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s
.
H
e
c
a
n
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m
a
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l
:
a
l
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ab
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ar@
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mu
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ri
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h
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fro
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Pl
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d
K
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n
g
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m
i
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2
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5
.
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e
r
ecei
v
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h
i
s
m
as
t
e
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d
e
g
r
ee
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o
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T
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ch
n
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y
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raq
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n
2
0
0
6
.
D
r.
A
l
-
Z
u
b
ai
d
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ar
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n
t
e
re
s
t
s
fo
c
u
s
e
d
o
n
p
o
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co
n
v
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o
n
t
e
ch
n
i
q
u
e
s
,
A
C
m
o
t
o
rs
d
ri
v
e
s
,
s
m
art
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ri
d
s
,
r
e
n
ew
ab
l
e
en
e
rg
y
d
e
v
el
o
p
me
n
t
s
.
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e
c
a
n
b
e
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