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id
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m
ar
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g
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id
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r
m
icr
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g
r
id
[
1
]
.
T
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co
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s
atio
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lo
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cu
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s
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te
m
[
2
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.
T
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h
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4
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[
5
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.
T
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[
6
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A
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I
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p
o
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er
a
n
g
le
co
n
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o
l c
o
n
ce
p
t
[
9
]
.
T
h
e
Un
if
ied
P
o
w
er
Flo
w
C
o
n
tr
o
ller
(
UP
FC
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a
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o
n
d
g
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F
AC
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ev
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w
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en
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les
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d
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p
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eliab
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y
a
n
d
q
u
alit
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o
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th
e
s
u
p
p
l
y
[
1
0
]
.
T
h
e
m
o
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er
n
tec
h
n
iq
u
e
s
in
in
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s
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r
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1
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2
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is
t
h
e
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r
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1
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I
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2
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(
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3
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Fig
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Ser
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I
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:
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in
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5
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.
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2
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h
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th
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lo
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cu
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to
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it
h
m
co
r
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s
y
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m
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o
w
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f
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en
s
ates t
h
e
all
c
u
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t h
ar
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o
n
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m
p
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n
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n
ts
.
0
*
*
sq
sd
q
l
q
f
ld
fd
i
i
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(
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T
h
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ag
e
v
al
u
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o
f
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C
v
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d
d
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e
to
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f
o
llo
w
in
g
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s
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n
s
:
1.
S
w
itc
h
i
n
g
f
r
eq
u
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n
c
y
2.
Po
w
er
r
ec
eiv
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r
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m
t
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to
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tio
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s
s
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ch
a
s
u
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b
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ce
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itio
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s
4.
Su
d
d
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ch
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n
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in
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I
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n
v
er
ter
's p
o
w
er
s
w
it
ch
g
ate
s
[
1
8
]
.
Fig
u
r
e
6
.
Sh
u
n
t
i
n
v
er
ter
co
n
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o
l b
lo
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r
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o
l
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ly
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o
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ter
o
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tp
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ac
k
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r
id
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r
r
en
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y
o
u
ca
n
ac
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ie
v
e
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s
tab
i
lit
y
o
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h
e
p
ar
allel
o
p
er
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,
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e
co
n
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o
l
m
et
h
o
d
is
r
elativ
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s
i
m
p
le
a
n
d
th
e
r
es
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lts
ar
e
b
etter
,
s
o
it
h
as b
ee
n
w
id
el
y
u
s
ed
[
19
].
2
.
3
.
Series inv
er
t
er
co
ntr
o
l
T
h
e
s
er
ies
in
v
er
ter
is
s
h
o
w
n
in
Fi
g
u
r
e
7
.
T
h
e
P
W
M
m
eth
o
d
is
u
s
ed
to
o
b
tain
b
etter
r
e
s
p
o
n
s
e
o
f
s
er
ies
in
v
er
ter
[
1
9
]
.
Sin
u
s
o
id
a
l
v
o
ltag
e
co
n
tr
o
llin
g
s
tr
ate
g
y
o
f
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ad
is
u
s
ed
to
co
n
tr
o
l
th
e
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er
ies
p
ar
t
o
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UP
QC
.
T
h
e
v
o
ltag
e
d
is
to
r
tio
n
s
a
n
d
3
-
p
h
ase
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ad
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o
lta
g
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ca
n
b
e
m
ai
n
tai
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th
s
m
o
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t
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cle
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th
e
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er
ies i
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ter
.
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e
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n
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r
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n
t
h
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m
et
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esire
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d
-
a
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n
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q
-
a
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m
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ar
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w
it
h
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h
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ad
v
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d
th
e
r
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lt
i
s
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ed
as
th
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er
en
ce
s
ig
n
a
l.
T
h
e
co
n
tr
o
llin
g
cir
c
u
it
o
f
s
er
ies
in
v
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ter
is
s
h
o
w
n
i
n
Fi
g
u
r
e
7
.
P
W
M
m
et
h
o
d
is
u
s
ed
to
p
er
f
o
r
m
b
es
t
r
esp
o
n
s
e
o
f
s
er
ies i
n
v
er
ter
[
20
]
-
[
2
1
]
.
Fig
u
r
e
7
.
Ser
ies
in
v
er
ter
co
n
tr
o
l b
lo
ck
d
iag
r
a
m
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2088
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8
694
IJ
PEDS
Vo
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3
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Sep
tem
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er
2
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1
6
:
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Fig
u
r
e
8
.
B
lo
ck
d
ia
g
r
a
m
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i
m
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P
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s
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h
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P
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is
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to
o
p
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ate
s
m
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l
y
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n
d
er
u
p
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o
r
m
al
s
u
p
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l
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v
o
lta
g
e
co
n
d
itio
n
.
I
n
th
is
p
ap
er
an
i
m
p
r
o
v
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e
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t
P
L
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is
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e
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elo
p
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.
L
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is
a
d
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ed
b
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o
r
e
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P
L
L
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lo
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au
to
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atic
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ai
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o
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(
A
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as
s
h
o
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n
Fig
u
r
e
8
to
r
ej
ec
t
th
e
ef
f
ec
t
o
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e
h
ar
m
o
n
ics
i
n
s
o
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ce
an
d
lo
ad
v
o
ltag
es.
T
h
e
L
P
F
is
u
s
ed
in
th
e
d
q
f
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m
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o
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at
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g
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s
h
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er
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o
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m
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ce
o
f
L
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F
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e
av
o
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.
T
h
e
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h
ase
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g
le
s
h
o
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ld
b
e
d
etec
ted
p
r
ec
is
ely
to
a
v
o
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d
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e
s
y
s
te
m
to
s
p
ik
e
o
r
o
v
er
s
h
o
o
t
th
at
lead
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d
eter
io
r
a
tio
n
i
n
th
e
s
y
s
te
m
p
er
f
o
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m
a
n
ce
.
3.
ANALY
SI
S A
ND
DE
SI
G
N
O
F
2
DO
F
P
I
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NT
RO
L
L
E
R
&VO
L
T
A
G
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R
E
G
UL
AT
O
R
3
.
1
.
Ana
ly
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is
a
nd
De
s
ig
n
o
f
t
he
P
ro
po
s
ed
2
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F
P
I
Co
ntr
o
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T
h
e
n
e
w
2
DO
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P
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o
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ca
n
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e
d
escr
ib
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th
e
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m
p
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x
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ar
iab
le
d
o
m
a
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b
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r
elatio
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(
1
0
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[
2
0
]
.
)]}
(
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(
[
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(
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s
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h
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o
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h
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ter
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m
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m
w
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e
2
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ca
n
b
e
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s
f
o
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in
t
h
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s
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te
m
i
n
Fi
g
u
r
e9
w
it
h
t
h
e
in
p
u
t
f
ilter
w
it
h
th
e
tr
an
s
f
er
f
u
n
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n
.
Fig
u
r
e
9.
2
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c
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ith
D
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v
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1
2
1
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
PEDS
I
SS
N:
2
0
8
8
-
8
694
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o
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itio
n
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d
el
B
a
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ed
w
ith
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eries
a
n
d
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h
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t F
ilter
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h
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la
f S
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750
an
d
th
e
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ta
n
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d
P
I
D
co
n
tr
o
lle
r
w
it
h
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e
T
F.
)
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1
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h
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2
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e
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an
d
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g
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r
e
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r
e
1
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2
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e
s
h
o
w
n
i
n
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g
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r
e
1
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h
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lete
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n
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ith
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u
r
e
11.
Fig
u
r
e
1
1
.
2
Do
FP
I
co
n
tr
o
ller
o
u
tp
u
t(
P
o
w
er
lo
s
s
)
3
.
2
.
Ana
ly
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is
a
nd
De
s
ig
n
o
f
t
he
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lt
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g
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Reg
ula
t
o
r
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f
i
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t
v
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g
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e
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ai
n
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u
r
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s
e
o
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eg
u
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r
to
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t
m
ag
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it
u
d
e
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ar
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o
f
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h
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n
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s
in
p
u
t
v
o
lta
g
e
o
r
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ad
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n
d
itio
n
s
[2
2
]
.
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h
e
r
eq
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ir
e
o
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s
w
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h
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g
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u
lato
r
s
m
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s
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ar
y
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h
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o
u
tp
u
t
v
o
lta
g
e
in
r
esp
o
n
s
e
to
in
p
u
t
a
n
d
o
u
tp
u
t
v
o
ltag
e
c
h
a
n
g
e
s
.
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W
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ap
p
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h
is
to
co
n
tr
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l
s
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e
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n
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u
t
to
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s
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ciate
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tch
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n
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ls
it
's
o
n
an
d
o
f
f
ti
m
e
(
d
u
t
y
c
y
cle)
.
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h
e
o
u
tp
u
t
v
o
ltag
e
th
at
f
ilter
ed
th
r
o
u
g
h
a
r
eq
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ala
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is
f
ed
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ac
k
to
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e
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o
n
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n
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t
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h
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d
b
ac
k
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e
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n
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ller
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u
s
ed
to
s
tab
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t
h
e
o
u
tp
u
t
v
o
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g
e
w
h
en
th
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i
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ed
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te
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t
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h
e
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r
eg
u
lato
r
i
n
s
h
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w
n
in
F
ig
u
r
e
12.
T
h
e
r
atio
n
al
s
tr
u
ct
u
r
e
o
f
t
h
e
b
o
th
2
DOF
P
I
D
an
d
P
I
co
n
tr
o
ll
er
s
as
n
u
m
in
a
t
o
r
an
d
d
en
o
m
i
n
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r
h
elp
s
to
o
v
er
co
m
e
t
h
e
p
r
o
b
lem
s
tak
e
p
ar
ts
in
th
e
s
y
s
te
m
.
T
h
e
n
o
m
i
n
ato
r
p
ar
t
o
f
th
e
clo
s
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tr
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s
f
er
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