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201
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I
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694
IJ
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Vo
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3
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Sep
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2
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1
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1
2
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12
59
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l
in
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m
o
d
e
a
n
d
it
is
m
ea
s
u
r
ed
b
y
p
o
w
er
q
u
alit
y
in
d
icato
r
[
8
-
9
]
.
T
h
ese
eq
u
ip
m
en
ts
d
o
es
n
o
t
h
a
v
e
th
e
f
u
n
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n
s
o
f
co
m
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lete
m
e
asu
r
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m
en
t,
s
tati
s
tical
a
n
al
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s
i
s
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d
co
n
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u
s
io
n
.
T
h
e
p
o
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er
q
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y
m
o
n
ito
r
in
g
s
y
s
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m
n
e
t
w
o
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k
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m
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le
tel
y
o
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h
e
p
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al
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y
.
O
n
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lin
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m
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ito
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g
o
f
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tr
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b
y
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L
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ased
s
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t
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s
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x
a
m
i
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ed
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as
d
is
cu
s
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ed
i
n
liter
at
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r
e
[
1
0
]
.
An
elec
tr
ical
p
o
w
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q
u
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e
v
a
lu
atio
n
s
c
h
e
m
e
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s
d
ev
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e
d
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g
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ased
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ted
m
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s
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t
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w
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s
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ted
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n
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h
e
p
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r
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1
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h
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n
,
a
n
et
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k
p
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q
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alit
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m
o
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i
to
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s
y
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m
w
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s
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lis
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ed
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ce
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ter
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et
w
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k
m
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in
g
s
y
s
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m
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n
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t
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g
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ag
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cr
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s
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p
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al
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d
f
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s
m
is
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n
ch
ar
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ter
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s
tics
.
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n
d
m
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g
t
h
e
p
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h
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d
o
n
e
v
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th
e
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s
.
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le
,
th
e
n
ec
ess
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ties
o
f
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ea
l
-
ti
m
e
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ce
s
s
ab
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y
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d
r
eliab
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y
ar
e
co
n
f
ir
m
ed
.
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d
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s
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id
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r
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n
A
r
ti
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Neu
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al
Net
w
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ller
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ased
s
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t a
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is
tr
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t
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y
s
te
m
w
as d
is
c
u
s
s
ed
[
1
3
]
.
T
h
e
m
ai
n
g
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al
o
f
t
h
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w
o
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to
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t
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al
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Natio
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ab
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h
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f
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s
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en
t.
2.
CIRCU
I
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AN
AL
Y
SI
S
AND
M
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H
O
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t
w
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le
s
.
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t
h
as
c
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t
a
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e
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en
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o
r
s
.
T
h
e
UP
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is
co
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ec
te
d
to
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ad
(
i.e
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1
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co
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p
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)
.
P
o
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q
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a
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p
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g
r
ess
ed
w
i
th
t
h
e
aid
o
f
a
D
AQ
s
y
s
te
m
,
w
h
ich
g
ath
er
s
r
ea
l
ti
m
e
d
ata
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n
t
h
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m
.
L
ater
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al
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w
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Natio
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ab
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.
On
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ap
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Fig
u
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P
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I
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8
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s
to
v
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an
d
s
tar
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a
k
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T
h
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m
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ts
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e
q
u
a
n
tit
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f
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o
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o
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ten
t
s
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ca
n
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e
d
etac
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e
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y
.
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lter
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ati
v
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s
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n
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m
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te
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g
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ter
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p
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al
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m
p
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n
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a
to
r
s
o
r
s
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u
n
t
ac
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e
co
m
p
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n
s
ato
r
s
.
T
h
o
u
g
h
t
h
is
wo
r
k
co
n
ce
n
tr
ates
o
n
lo
w
p
o
w
e
r
ed
s
y
s
te
m
s
i
m
ilar
p
r
in
cip
le
s
an
d
tech
n
iq
u
e
s
ca
n
b
e
s
tr
etch
ed
to
h
ig
h
p
o
w
er
ed
s
y
s
te
m
s
a
n
d
th
r
ee
p
h
a
s
e
s
y
s
te
m
s
.
RE
F
E
R
E
NC
E
S
[1
]
D.
G
o
n
z
a
lez
,
J.
M
c
Ca
ll
.
De
sig
n
o
f
F
il
ters
to
Re
d
u
c
e
Ha
rm
o
n
ic Disto
rti
o
n
i
n
In
d
u
strial
P
o
w
e
r
S
y
ste
m
s.
IEE
E
T
r
a
n
s
.
o
n
I
n
d
u
stry
Ap
p
li
c
a
t
io
ns
.
1
9
8
7
;
2
3
(3
):
5
0
4
-
5
1
1
.
[2
]
M
.
T
a
li
,
A
.
Ob
b
a
d
i,
A
.
El
fa
jri
,
Y.
Err
a
m
i.
Pa
ss
ive
Fi
lt
e
r
fo
r
Ha
rm
o
n
ics
M
it
ig
a
t
io
n
in
S
ta
n
d
a
lo
n
e
PV
S
y
ste
m
fo
r
No
n
-
L
i
n
e
a
r L
o
a
d
.
Re
n
e
w
a
b
le an
d
su
sta
in
a
b
le en
e
rg
y
c
o
n
f
e
re
n
c
e
,
M
o
ro
c
c
o
.
2
0
1
4
;
4
9
9
-
5
0
4
.
[3
]
L
e
e
G
M
,
L
e
e
D
C,
S
e
o
k
J
K.
Co
n
tr
o
l
o
f
se
ries
a
c
ti
v
e
p
o
w
e
r
f
il
ters
c
o
m
p
e
n
sa
ti
n
g
f
o
r
so
u
rc
e
v
o
lt
a
g
e
u
n
b
a
la
n
c
e
a
n
d
c
u
rre
n
t
h
a
rm
o
n
ics
.
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
In
d
u
stri
a
l
El
e
c
tro
n
ics
.
2
0
0
4
;
1
9
(1
)
:
1
3
2
-
1
3
9
.
[4
]
F
u
ji
ta
H,
A
k
a
g
i
H.
T
h
e
u
n
if
ied
p
o
w
e
r
q
u
a
li
ty
c
o
n
d
it
i
o
n
e
r:
th
e
i
n
teg
ra
ti
o
n
o
f
se
ries
-
a
n
d
sh
u
n
t
-
a
c
ti
v
e
f
il
ters
.
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
Po
we
r E
lec
tro
n
i
c
s
.
1
9
9
8
;
1
3
(
2
):
3
1
5
-
3
2
2
.
[5
]
Hid
e
a
k
i
F
u
ji
ta,
Hiro
m
i
A
k
a
g
i,
Ya
su
h
iro
W
a
tan
a
b
e
.
Dy
n
a
m
ic
c
o
n
tr
o
l
a
n
d
p
e
rf
o
rm
a
n
c
e
o
f
a
u
n
if
ied
p
o
w
e
r
f
lo
w
c
o
n
tro
ll
e
r
f
o
r
sta
b
il
izin
g
a
n
d
a
n
A
C
tran
s
m
is
sio
n
sy
ste
m
.
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
P
o
we
r
El
e
c
tro
n
ic
s
.
2
0
0
6
;
2
1
(
4
)
:
1
0
1
3
-
1
0
2
0
.
[6
]
Jo
n
g
-
Ku
n
L
e
e
,
Ju
l
-
Ki
S
e
o
k
,
Do
n
g
-
Ch
o
o
n
L
e
e
.
Un
if
ied
Active
P
o
w
e
r
Fi
lt
e
rs
fo
r S
o
u
rc
e
Vo
lt
a
g
e
Un
b
a
la
n
c
e
/Cu
rr
e
n
t
Ha
rm
o
n
ics
C
o
mp
e
n
sa
ti
o
n
a
n
d
Po
we
r
Fa
c
t
o
r
Co
rr
e
c
ti
o
n
.
T
h
e
3
0
t
h
A
n
n
u
a
l
Co
n
f
e
re
n
c
e
o
f
th
e
IEE
E
In
d
u
str
ial
El
e
c
tro
n
ics
S
o
c
iety
,
Bu
sa
n
,
Ko
re
a
.
2
0
0
4
;
5
4
0
-
5
4
5
.
[7
]
M.
H.
J.
Bo
ll
e
n
.
Un
d
e
rsta
n
d
i
n
g
P
o
w
e
r
Qu
a
li
t
y
P
ro
b
lem
s:
V
o
lt
a
g
e
S
a
g
s
a
n
d
In
terru
p
ti
o
n
s.
IEE
E
Pre
ss
,
Ne
w
Yo
rk
,
2
0
0
0
.
[8
]
W
a
c
l
a
w
iak
M
,
M
c
G
r
a
n
a
g
h
a
n
M
,
S
a
b
i
n
D.
S
u
b
sta
ti
o
n
p
o
we
r
q
u
a
li
ty
p
e
rfo
rm
a
n
c
e
mo
n
it
o
rin
g
a
n
d
t
h
e
in
ter
n
e
t
.
IEE
E
P
o
w
e
r
En
g
in
e
e
rin
g
S
o
c
iety
S
u
m
m
e
r
M
e
e
ti
n
g
.
2
0
0
1
;
2
:
1
1
1
0
-
1
1
1
1
.
[9
]
Ba
ti
sta
J,
M
o
n
s
o
JL
,
M
a
rti
n
s
JS.
L
o
w
-
c
o
st p
o
we
r
q
u
a
li
ty
mo
n
i
to
r b
a
se
d
o
n
a
PC.
E
EE
In
tern
a
ti
o
n
a
l
S
y
m
p
o
siu
m
o
n
In
d
u
strial
El
e
c
tro
n
ics
.
2
0
0
3
;
1
:
3
2
3
-
3
2
8
.
[1
0
]
W
e
i
-
F
u
C
h
a
n
g
,
Yu
-
C
h
i
W
u
,
Ch
u
i
-
W
e
n
Ch
i
u
.
De
v
e
lo
p
m
e
n
t
o
f
a
w
e
b
-
b
a
se
d
re
m
o
te
lo
a
d
s
u
p
e
rv
isio
n
a
n
d
c
o
n
tr
o
l
s
y
ste
m
.
El
e
c
trica
l
Po
we
r a
n
d
En
e
rg
y
S
y
ste
ms
.
2
0
0
6
;
2
8
:
4
0
1
–
4
0
7
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
PEDS
I
SS
N:
2088
-
8
694
F
ilter
I
mp
leme
n
ta
tio
n
u
s
in
g
O
u
tp
u
t Tr
a
n
s
fo
r
mer o
f U
P
S
fo
r
P
o
w
er Qu
a
lity I
mp
r
o
ve
men
t
(
A
n
a
n
d
h
N
)
1259
[1
1
]
Ju
a
n
Jo
sé
G
o
n
z
á
lez
d
e
la Ro
sa
,
An
to
n
io
M
o
re
n
o
M
u
ñ
o
z
,
A
u
ro
ra
Gil
d
e
Ca
stro
,
V
ícto
r
P
a
ll
a
ré
s L
ó
p
e
z
,
Jo
se
A
n
to
n
i
o
S
á
n
c
h
e
z
Ca
stil
lejo
.
A
w
e
b
-
b
a
se
d
d
istri
b
u
te
d
m
e
a
su
re
m
e
n
t
sy
ste
m
f
o
r
e
lec
tri
c
a
l
p
o
w
e
r
q
u
a
li
ty
a
s
se
ss
m
e
n
t.
M
e
a
su
re
me
n
t
.
2
0
1
0
;
4
3
:
7
7
1
–
7
8
0
.
[1
2
]
R.
Ba
las
u
b
ra
m
a
n
ian
,
S
.
P
a
lan
i
.
S
im
u
latio
n
a
n
d
p
e
rf
o
rm
a
n
c
e
e
v
a
l
u
a
ti
o
n
o
f
sh
u
n
t
h
y
b
rid
p
o
w
e
r
f
i
lt
e
r
f
o
r
p
o
w
e
r
q
u
a
li
ty
i
m
p
ro
v
e
m
e
n
t
u
sin
g
P
Q
th
e
o
ry
.
In
ter
n
a
ti
o
n
a
l
J
o
u
rn
a
l
o
f
El
e
c
trica
l
a
n
d
Co
mp
u
ter
En
g
i
n
e
e
rin
g
.
2
0
1
6
;
6
(6
)
:
2
6
0
3
-
2
6
0
9
.
[1
3
]
Ja
ru
p
u
la S
o
m
lal,
V
e
n
u
G
o
p
a
la Ra
o
.
M
a
n
n
a
m
,
Na
ra
si
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