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[
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[
2
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if
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[
3
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.
Ad
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n
s
,
[
4
]
p
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s
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n
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s
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l
.
[
5
]
,
a
b
r
ief
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v
e
r
v
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atin
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r
ess
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is
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es
[
6
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.
T
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tr
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tu
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y
[7
]
,
[
8
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p
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PL
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a
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ch
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ce
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am
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DVR
f
o
r
m
itig
atio
n
o
f
v
o
ltag
e
s
ag
an
d
s
well
[
9
]
,
[
1
0
]
.
Ho
wev
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,
its
co
m
p
le
x
ity
ar
is
es
f
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o
m
in
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1
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ased
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[
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Var
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[
1
3
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ar
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[
1
4
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ased
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ate
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,
a
f
r
eq
u
e
n
cy
a
d
ap
tiv
e
en
h
an
ce
d
r
e
d
u
ce
d
-
o
r
d
e
r
g
en
er
alize
d
in
teg
r
ato
r
(
FAEROGI
)
-
b
ased
co
n
tr
o
l
al
g
o
r
ith
m
is
im
p
lem
en
ted
f
o
r
DVR
o
p
er
atio
n
.
T
h
e
FAEROGI
-
b
a
s
ed
co
n
tr
o
l
s
ch
em
e
o
f
f
er
s
n
o
tab
l
e
b
en
e
f
its
,
in
clu
d
in
g
r
ed
u
ce
d
s
ettlin
g
tim
e,
lo
wer
p
ea
k
o
v
er
s
h
o
o
t,
an
d
f
aster
-
u
n
b
alan
ce
d
c
o
m
p
en
s
atio
n
.
T
h
e
ef
f
ec
tiv
en
ess
o
f
ad
ap
tiv
e
f
ilter
s
h
ea
v
ily
r
elies
o
n
th
e
s
elec
tio
n
o
f
an
ap
p
r
o
p
r
iate
co
s
t
f
u
n
ctio
n
,
a
cr
itical
f
ac
to
r
in
d
iv
er
s
e
n
o
is
e
en
v
ir
o
n
m
en
ts
[
1
9
]
.
T
o
ac
h
ie
v
e
s
u
p
er
io
r
s
tead
y
-
s
tate
alig
n
m
en
t
an
d
en
h
a
n
ce
d
r
o
b
u
s
tn
ess
in
im
p
u
ls
iv
e
n
o
is
e
co
n
d
itio
n
s
,
a
g
en
e
r
alize
d
h
y
p
e
r
b
o
lic
s
ec
an
t
co
s
t
f
u
n
ctio
n
h
as
b
ee
n
em
p
lo
y
ed
[
2
0
]
.
Similar
ly
,
th
e
ar
ctan
g
e
n
t
co
s
t
f
u
n
ctio
n
h
as
b
ee
n
in
teg
r
ate
d
in
to
th
e
n
o
r
m
alize
d
least
m
ea
n
s
q
u
ar
e
(
NL
MS)
f
r
am
ewo
r
k
,
d
em
o
n
s
tr
atin
g
h
ei
g
h
ten
ed
r
esil
ien
ce
ag
ain
s
t
im
p
u
ls
iv
e
in
ter
f
er
en
ce
[
2
1
]
.
A
m
u
lti
-
co
n
v
ex
ad
ap
tiv
e
least
m
ea
n
s
q
u
ar
e
(
L
MS)
f
ilter
-
b
a
s
ed
co
n
tr
o
l
s
tr
ateg
y
is
p
r
o
p
o
s
ed
in
[
2
2
]
f
o
r
DVR
ap
p
licatio
n
s
,
wh
er
e
ea
ch
L
M
S
s
u
b
-
f
ilter
e
x
ce
ls
in
h
ar
m
o
n
i
c
s
u
p
p
r
ess
io
n
an
d
d
y
n
am
ic
t
r
ac
k
in
g
b
y
u
tili
zin
g
s
tep
-
s
ize
ad
ap
tatio
n
f
o
r
s
u
p
e
r
io
r
v
o
ltag
e
d
is
to
r
tio
n
m
an
ag
em
en
t.
Fu
r
th
e
r
a
d
v
an
ce
m
e
n
ts
ar
e
s
ee
n
in
[
2
3
]
,
wh
er
e
a
m
o
d
if
ie
d
f
r
ac
tio
n
al
least
m
ea
n
s
q
u
ar
e
(
M
-
FLM
S)
co
n
tr
o
l
s
ch
em
e
o
p
tim
izes
DVR
p
er
f
o
r
m
an
ce
.
B
y
in
co
r
p
o
r
atin
g
an
ad
ju
s
tab
le
g
a
in
p
ar
am
eter
in
to
th
e
o
r
ig
i
n
al
FLM
S
s
tr
u
ctu
r
e,
th
e
M
-
FLM
S
m
eth
o
d
ac
h
iev
es
f
aster
co
n
v
e
r
g
en
ce
,
r
ed
u
ce
d
s
tead
y
-
s
tate
er
r
o
r
s
,
a
n
d
h
i
g
h
er
c
o
m
p
u
tatio
n
al
ef
f
icien
cy
d
u
r
in
g
v
o
ltag
e
d
is
to
r
tio
n
s
.
Alter
n
ativ
ely
,
tr
an
s
f
o
r
m
er
-
b
ased
im
p
ed
an
ce
s
o
u
r
ce
in
v
er
te
r
s
(
T
r
an
s
-
Z
s
o
u
r
ce
in
v
er
ter
s
)
h
av
e
b
ee
n
ex
p
lo
r
ed
f
o
r
DVR
o
p
er
atio
n
in
[
2
4
]
.
No
tab
ly
,
w
h
ile
m
eth
o
d
s
in
[
2
1
]
–
[
2
3
]
s
h
o
wca
s
e
im
p
r
o
v
ed
r
o
b
u
s
tn
ess
an
d
p
e
r
f
o
r
m
an
ce
m
etr
ics,
th
ey
ar
e
ac
c
o
m
p
a
n
ie
d
b
y
h
ig
h
er
co
m
p
u
tatio
n
al
d
em
an
d
s
.
T
h
er
ef
o
r
e,
th
er
e
is
a
n
ee
d
f
o
r
an
alg
o
r
ith
m
with
a
n
o
v
el
co
s
t
f
u
n
ctio
n
t
h
at
d
eliv
er
s
b
o
th
r
o
b
u
s
t
s
tead
y
-
s
tate
an
d
d
y
n
am
ic
r
esp
o
n
s
es,
ev
en
u
n
d
e
r
u
n
b
ala
n
ce
d
g
r
id
co
n
d
itio
n
s
,
e
n
s
u
r
in
g
ap
p
r
o
p
r
iate
DVR
o
p
er
atio
n
.
I
n
[
2
5
]
,
a
s
tu
d
y
em
p
lo
y
ed
th
e
in
v
er
s
e
h
y
p
e
r
b
o
lic
s
in
e
f
u
n
ct
io
n
as
a
co
s
t
f
u
n
ctio
n
,
s
h
o
wca
s
in
g
im
p
r
o
v
ed
s
tead
y
-
s
tate
ac
co
m
p
lis
h
m
en
t
a
n
d
i
n
cr
ea
s
ed
r
esil
ien
ce
ag
ain
s
t
im
p
u
ls
iv
e
in
ter
f
er
e
n
ce
wh
e
n
co
m
p
ar
ed
to
s
ev
er
al
ex
is
tin
g
alg
o
r
ith
m
s
.
Hen
ce
,
t
h
is
wo
r
k
r
ef
er
s
[
2
5
]
to
th
e
e
f
f
ec
tiv
e
o
p
er
atio
n
o
f
DVR.
T
h
e
p
r
im
e
co
n
tr
ib
u
tio
n
s
o
f
th
e
tech
n
ical
m
an
u
s
cr
ip
t
ar
e:
i)
T
h
e
I
HSF
-
LMS
-
b
ased
co
n
tr
o
l
s
ch
em
e
is
u
tili
ze
d
f
o
r
t
h
e
ef
f
icien
t
e
x
tr
a
ctio
n
o
f
t
h
e
f
u
n
d
am
e
n
tal
co
m
p
o
n
en
t
(
FC
)
f
r
o
m
a
d
is
to
r
ted
s
o
u
r
ce
v
o
ltag
e.
I
t
o
f
f
er
s
im
p
r
o
v
ed
s
tead
y
-
s
tate
p
er
f
o
r
m
a
n
ce
a
n
d
d
em
o
n
s
tr
ates
s
tr
o
n
g
r
esil
ien
ce
to
im
p
u
ls
iv
e
in
ter
f
er
e
n
ce
.
Ad
d
itio
n
ally
,
its
im
p
lem
e
n
tatio
n
is
s
tr
aig
h
tf
o
r
war
d
,
eli
m
in
atin
g
th
e
n
ee
d
f
o
r
co
m
p
lex
m
ath
em
atica
l
co
m
p
u
tatio
n
s
;
ii)
A
co
m
p
ar
ativ
e
an
aly
s
is
b
etwe
en
th
e
p
r
o
p
o
s
ed
I
HSF
-
L
MS
co
n
tr
o
l
s
ch
em
e
an
d
th
e
tr
ad
itio
n
al
L
MS
tech
n
iq
u
e
h
ig
h
lig
h
ts
its
s
u
p
er
io
r
p
e
r
f
o
r
m
a
n
ce
.
No
tab
ly
,
th
e
p
r
o
p
o
s
ed
alg
o
r
ith
m
'
s
co
m
p
u
tatio
n
al
b
u
r
d
en
is
s
ig
n
if
ican
tly
lo
wer
th
an
th
e
m
et
h
o
d
s
d
is
cu
s
s
ed
in
[
2
1
]
–
[
2
3
]
;
iii)
T
h
e
p
r
o
p
o
s
ed
co
n
tr
o
l
alg
o
r
ith
m
ef
f
ec
tiv
ely
en
s
u
r
es
th
at
th
e
to
tal
h
ar
m
o
n
ic
d
is
to
r
tio
n
(
T
HD
)
o
f
th
e
lo
ad
v
o
ltag
e
r
em
ain
s
well
with
in
ac
ce
p
tab
le
lim
its
,
co
m
p
ly
in
g
with
th
e
5
% th
r
esh
o
ld
s
p
ec
if
ied
in
t
h
e
I
E
E
E
-
519
-
2
0
1
4
s
tan
d
ar
d
.
2.
DVR
CO
NF
I
G
URA
T
I
O
N
Fig
u
r
e
1
illu
s
tr
ates
th
e
MA
T
L
AB
/Si
m
u
lin
k
m
o
d
el
o
f
th
e
3
P3
W
-
VSC
-
b
ased
DVR
co
n
f
ig
u
r
atio
n
with
a
ca
p
ac
ito
r
s
u
p
p
o
r
t.
T
h
e
m
ajo
r
p
o
r
tio
n
in
clu
d
es
a
t
h
r
e
e
-
p
h
ase
s
u
p
p
ly
with
d
is
to
r
tio
n
s
cr
ea
ted
,
s
u
ch
as
v
o
ltag
e
s
ag
,
s
well,
d
is
to
r
tio
n
s
,
an
d
im
b
alan
ce
,
a
n
d
th
e
th
r
ee
-
p
h
ase
-
s
en
s
itiv
e
lo
ad
,
wh
ich
n
e
ed
s
to
b
e
p
r
o
tecte
d
f
r
o
m
th
ese
u
n
d
esira
b
le
ch
an
g
es
in
s
u
p
p
ly
v
o
ltag
e.
T
h
e
DC
-
lin
k
ca
p
ac
ito
r
p
r
o
v
id
es
v
o
lta
g
e
as
in
p
u
t
d
u
r
in
g
d
if
f
er
en
t d
is
tu
r
b
an
ce
s
.
T
h
e
f
ilt
er
h
as
b
ee
n
u
s
ed
at
t
h
e
o
u
tp
u
t o
f
th
e
v
o
ltag
e
s
o
u
r
ce
co
n
v
er
te
r
(
VSC
)
to
r
em
o
v
e
s
witch
in
g
h
ar
m
o
n
ics
g
e
n
er
ate
d
b
y
th
e
VSC
.
T
h
e
v
o
ltag
e
is
to
b
e
in
s
er
ted
in
to
t
h
e
s
y
s
tem
th
r
o
u
g
h
a
s
in
g
le
-
p
h
ase
s
er
ies
-
co
n
n
ec
ted
in
jecti
o
n
tr
an
s
f
o
r
m
er
.
T
h
e
s
u
p
p
ly
v
o
ltag
e
is
r
ep
r
esen
ted
b
y
an
d
th
e
lo
ad
v
o
ltag
e
as
well
as
th
e
cu
r
r
en
ts
a
r
e
d
e
p
icted
as
an
d
,
r
esp
ec
tiv
ely
.
is
th
e
DC
-
lin
k
v
o
ltag
e
ac
r
o
s
s
th
e
ca
p
ac
ito
r
an
d
is
th
e
DVR
-
in
je
cted
v
o
ltag
e
d
u
r
in
g
th
e
d
is
tu
r
b
an
ce
s
.
3.
I
H
SF
-
L
M
S B
A
SE
D
-
CO
NT
RO
L
AL
G
O
RI
T
H
M
T
h
e
m
ain
f
u
n
ctio
n
o
f
a
DVR
is
to
in
ject
a
co
m
p
en
s
atin
g
v
o
ltag
e
in
s
er
ies
with
th
e
p
o
w
er
s
u
p
p
l
y
,
m
ain
tain
in
g
s
tab
le
v
o
lta
g
e
r
e
g
u
latio
n
at
th
e
lo
ad
ter
m
in
al.
T
h
e
ef
f
ec
tiv
en
ess
o
f
th
e
co
n
t
r
o
l
alg
o
r
ith
m
h
i
n
g
es
o
n
is
o
latin
g
th
e
f
u
n
d
a
m
en
tal
s
o
u
r
ce
v
o
ltag
e
c
o
m
p
o
n
en
t
th
a
t
alig
n
s
with
th
e
u
n
it
lo
ad
c
u
r
r
en
t
tem
p
late.
Fo
r
p
r
ec
is
e
ev
alu
atio
n
,
t
h
e
u
n
it
lo
ad
cu
r
r
en
t
tem
p
late
m
u
s
t
m
ai
n
tain
p
h
ase
s
y
n
ch
r
o
n
izatio
n
with
th
e
lo
a
d
c
u
r
r
e
n
t
wh
ile
ex
h
ib
itin
g
a
u
n
it m
ag
n
itu
d
e.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
I
SS
N:
2088
-
8
6
9
4
A
n
o
ve
l a
d
a
p
tive
co
n
tr
o
l sch
eme
fo
r
d
yn
a
mic
vo
lta
g
e
r
esto
r
e
r
(
Tu
mma
la
K
r
a
n
ti K
ir
a
n
)
1085
Fig
u
r
e
1
.
MA
T
L
AB
/Si
m
u
lin
k
m
o
d
el
o
f
th
e
3
P3
W
-
VSC
-
b
ased
DVR co
n
f
ig
u
r
atio
n
with
a
c
ap
ac
ito
r
s
u
p
p
o
r
t
3
.
1
.
I
nv
er
s
e
hy
perbo
lic
s
ine
f
un
ct
io
n
-
ba
s
ed
(
I
H
SF)
L
M
S
a
da
ptiv
e
f
ilte
ring
a
lg
o
rit
hm
Fig
u
r
e
2
(
a)
illu
s
tr
ates
a
co
m
p
lete
cir
cu
it
r
ep
r
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ased
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ased
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
6
9
4
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
,
Vo
l.
16
,
No
.
2
,
J
u
n
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20
25
:
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3
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1093
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ates
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tr
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s
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e
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is
is
p
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ller
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lates
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ter
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will b
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=
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)
is
o
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tain
ed
th
r
o
u
g
h
(
1
4
)
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
I
SS
N:
2088
-
8
6
9
4
A
n
o
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u
r
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C
o
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a)
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ased
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ia
g
r
am
f
o
r
DVR an
d
(
b
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HSF
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MS
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n
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o
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lg
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ith
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ased
ex
tr
ac
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r
T
h
e
r
ef
er
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ce
lo
a
d
ter
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in
al
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o
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is
(
∗
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.
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h
e
is
co
m
p
ar
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with
r
ef
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ce
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ad
ter
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in
a
l
v
o
ltag
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at
g
en
er
ates
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er
r
o
r
(
)
.
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h
e
er
r
o
r
s
ig
n
al
is
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iv
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th
e
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s
id
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wh
ich
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tp
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h
is
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eg
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late
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th
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DVR.
is
p
ass
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r
o
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g
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L
PF
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ex
tr
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t
lo
ad
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r
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ctiv
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m
p
o
n
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ts
.
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h
e
o
u
tp
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t
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f
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tr
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ag
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ee
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o
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=
+
(
1
5
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T
h
r
ee
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ase
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d
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ea
ctiv
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m
p
o
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ts
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l
tag
e
∗
a
n
d
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g
iv
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n
b
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(
1
6
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an
d
(
1
7
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.
∗
=
∗
(
)
(
1
6
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∗
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∗
(
)
(
1
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T
h
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s
ig
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(
∗
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eter
m
in
ed
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elp
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1
6
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n
d
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1
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as
(
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8
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.
∗
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T
h
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er
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r
g
e
n
er
ated
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p
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r
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g
(
∗
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an
d
(
)
is
u
tili
ze
d
f
o
r
PW
M
g
en
er
atio
n
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
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:
2
0
8
8
-
8
6
9
4
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
,
Vo
l.
16
,
No
.
2
,
J
u
n
e
20
25
:
1
0
8
3
-
1093
1088
4.
SI
M
UL
A
T
I
O
N
R
E
SU
L
T
O
F
DVR
USI
NG
I
H
SF
-
L
M
S
-
B
AS
E
D
ADAP
T
I
V
E
F
I
L
T
E
RING
AL
G
O
RI
T
H
M
T
h
e
3
P3
W
DVR
u
tili
zin
g
th
e
in
v
er
s
e
h
y
p
er
b
o
lic
s
in
e
f
u
n
ctio
n
-
b
ased
L
MS
(
I
HSF
-
L
MS)
co
n
tr
o
l
alg
o
r
ith
m
h
as
b
ee
n
m
o
d
ele
d
an
d
s
im
u
lated
in
MA
T
L
AB
S
im
u
lin
k
.
A
s
am
p
le
tim
e
o
f
2
0
m
icr
o
s
ec
o
n
d
s
was
u
tili
ze
d
f
o
r
th
e
s
im
u
latio
n
s
.
V
o
ltag
e
s
well
an
d
s
ag
ev
en
ts
wer
e
ap
p
li
ed
f
o
r
d
u
r
atio
n
s
o
f
0
.
4
≤
≤
0
.
48
s
.
an
d
0
.
54
≤
≤
0
.
62
s
.
,
r
esp
ec
tiv
ely
,
wh
ile
s
o
u
r
ce
v
o
ltag
e
d
is
to
r
tio
n
was
in
tr
o
d
u
ce
d
o
v
er
a
r
an
g
e
o
f
0
.
7
≤
≤
0
.
78
s
.
Ad
d
itio
n
ally
,
v
o
ltag
e
u
n
b
al
an
ce
was
o
b
s
er
v
ed
at
0
.
84
≤
≤
0
.
9
s
.
T
h
e
s
u
b
s
eq
u
en
t
s
ec
tio
n
s
p
r
o
v
id
e
a
d
etailed
an
aly
s
is
o
f
DVR o
p
er
atio
n
.
I
n
ter
m
e
d
iate
s
ig
n
als ar
e
an
aly
ze
d
to
ass
ess
th
e
DVR
's
p
er
f
o
r
m
an
ce
u
n
d
e
r
th
e
s
p
ec
if
ied
co
n
tr
o
l sch
em
e.
Simu
latio
n
r
esu
lts
ar
e
d
is
cu
s
s
ed
in
th
e
f
o
llo
win
g
s
u
b
-
s
ec
tio
n
s
.
4
.
1
.
I
nte
rm
edia
t
e
s
ig
na
ls
o
f
t
he
I
H
SF
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L
M
S
-
ba
s
ed
co
nt
ro
l schem
e
Fig
u
r
es
3
(
a)
an
d
3
(
b
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r
ep
r
ese
n
t
th
e
in
ter
n
al
s
ig
n
als
o
f
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HSF
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f
r
o
m
th
e
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u
p
p
l
y
v
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e
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f
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ase
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v
sa
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.
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h
e
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ir
s
t
s
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b
p
lo
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u
r
es
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(
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3
(
b
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in
d
icate
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o
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r
ce
s
id
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o
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(
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o
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s
u
es.
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h
e
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tiv
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FC
o
f
th
e
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sa
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f
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ase
‘
a’
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ep
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ted
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in
s
u
b
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lo
t
two
.
T
h
e
s
ig
n
al
o
b
tain
ed
f
r
o
m
(
1
0
)
is
th
e
th
ir
d
s
u
b
p
lo
t
o
f
Fig
u
r
es
3
(
a)
an
d
3
(
b
)
.
T
h
e
ter
m
∗
ca
lcu
lated
f
r
o
m
(
1
8
)
wh
ich
is
th
e
r
ef
er
en
ce
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tiv
e
co
m
p
o
n
e
n
t
o
f
lo
ad
v
o
ltag
e
f
o
r
p
h
ase
‘
a’
ca
n
b
e
d
ep
icted
in
s
u
b
p
l
o
t
f
o
u
r
.
Mo
r
eo
v
e
r
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e
r
ea
ctiv
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FC
o
f
th
e
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sabc
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e
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ase
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a’
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.
,
is
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ep
r
esen
ted
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y
th
e
s
u
b
p
lo
t
f
if
th
o
f
Fig
u
r
es
3
(
a)
an
d
3
(
b
)
.
A
s
ig
n
al
o
b
tain
ed
f
r
o
m
(
1
2
)
is
illu
s
tr
ated
in
th
e
s
ix
th
s
u
b
p
lo
t
o
f
Fig
u
r
es
3
(
a)
a
n
d
3
(
b
)
.
T
h
e
ter
m
∗
ca
lcu
lated
f
r
o
m
(
1
7
)
wh
ich
is
th
e
r
ef
er
en
ce
r
ea
ctiv
e
c
o
m
p
o
n
en
t
o
f
lo
ad
v
o
ltag
e
f
o
r
p
h
ase
‘
a’
is
illu
s
tr
ated
in
s
u
b
p
lo
t
s
ev
en
t
h
.
Fin
ally
,
th
e
r
ef
er
en
ce
lo
ad
v
o
ltag
e
o
b
tain
e
d
f
r
o
m
(
1
8
)
is
a
r
ticu
lated
i
n
s
u
b
p
lo
t
eig
h
t.
Fro
m
Fig
u
r
es
3
(
a)
an
d
3
(
b
)
,
it
is
o
b
s
er
v
ed
th
at
th
e
o
f
f
e
r
ed
I
HSF
-
LMS
-
b
ased
co
n
t
r
o
l
s
ch
em
e
p
r
o
d
u
ce
s
a
b
ala
n
ce
d
th
r
ee
-
p
h
ase
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e
f
er
en
ce
l
o
ad
v
o
l
tag
e
ev
en
th
o
u
g
h
th
e
s
o
u
r
ce
v
o
ltag
e
is
d
is
to
r
ted
.
4
.
2
.
DVR
o
v
er
a
ll per
f
o
r
m
a
n
ce
wit
h IHSF
-
L
M
S
-
ba
s
e
d c
o
ntr
o
l schem
e
F
i
g
u
r
e
4
d
e
m
o
n
s
t
r
a
t
e
s
t
h
e
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o
m
p
r
e
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e
n
s
i
v
e
p
e
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f
o
r
m
a
n
c
e
o
f
t
h
e
D
V
R
u
s
i
n
g
t
h
e
I
H
S
F
-
b
a
s
e
d
L
M
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c
o
n
t
r
o
l
t
e
c
h
n
i
q
u
e
u
n
d
e
r
v
a
r
i
o
u
s
d
y
n
a
m
i
c
c
o
n
d
i
t
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o
n
s
.
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i
g
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e
4
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S
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a
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e
d
L
M
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r
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t
h
m
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(
a)
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u
r
e
3
.
I
n
ter
m
ed
iate
s
ig
n
als
f
o
r
p
r
o
p
o
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ed
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HSF
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LMS
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b
ased
co
n
tr
o
l sch
em
e
d
u
r
in
g
:
(
a)
v
o
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e
s
well
an
d
s
ag
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d
(
b
)
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o
lta
g
e
d
is
to
r
tio
n
a
n
d
u
n
b
alan
ce
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
I
SS
N:
2088
-
8
6
9
4
A
n
o
ve
l a
d
a
p
tive
co
n
tr
o
l sch
eme
fo
r
d
yn
a
mic
vo
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g
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r
esto
r
e
r
(
Tu
mma
la
K
r
a
n
ti K
ir
a
n
)
1089
(
a)
(
b
)
Fig
u
r
e
4
.
C
o
m
p
r
eh
en
s
iv
e
e
f
f
e
ctiv
en
ess
o
f
th
e
DVR with
th
e
I
HSF
-
L
MS
co
n
tr
o
l sch
em
e
:
(
a)
v
o
ltag
e
s
well
an
d
s
ag
(
b
)
v
o
ltag
e
d
is
to
r
tio
n
a
n
d
v
o
ltag
e
u
n
b
alan
ce
T
ab
le
1
.
Simu
latio
n
p
er
f
o
r
m
a
n
ce
o
f
th
e
I
HSF
-
b
ased
L
MS
alg
o
r
ith
m
S
r
.
N
o
.
D
i
st
u
r
b
a
n
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e
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t
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r
e
P
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r
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me
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e
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M
S
v
a
l
u
e
s
1.
D
V
R
b
e
h
a
v
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o
r
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c
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i
t
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o
n
)
0
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8
2
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u
.
sa
g
=
3
3
9
.
2
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,
=
7
5
.
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3
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=
4
1
5
V
2.
1
.
2
p
.
u
.
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l
=
4
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3
1
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4
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,
=
4
1
5
V
3.
D
i
st
o
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t
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o
n
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3
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6
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4
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,
=
3
0
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,
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5
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4.
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n
b
a
l
a
n
c
e
(
r
e
s
i
st
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v
e
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o
a
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V
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e
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a
v
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o
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e
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d
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t
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%,
=
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7
9
%
5.
CO
M
P
ARI
SI
O
N
O
F
I
H
SF
-
L
M
S
-
B
AS
E
D
CO
N
T
RO
L
WI
T
H
CO
NV
E
N
T
I
O
NA
L
L
M
S
CO
NT
RO
L
T
E
CH
N
I
Q
UE
T
h
e
ef
f
ec
tiv
en
ess
o
f
I
HSF
-
L
MS
is
co
m
p
ar
ed
with
co
n
v
e
n
tio
n
al
L
MS.
T
h
e
f
u
n
d
am
en
tal
ac
tiv
e
weig
h
t
co
m
p
o
n
en
t
o
f
p
h
ase
'
a'
is
co
m
p
ar
ed
to
ass
ess
it
s
ef
f
ec
tiv
en
ess
with
th
e
L
MS
an
d
I
HSF
-
LMS
-
b
ased
co
n
tr
o
l
s
ch
em
es.
I
t
is
d
ep
icted
in
Fig
u
r
e
6
.
T
h
e
wav
e
s
h
ap
es
s
h
o
w
th
at
th
er
e
ar
e
p
er
s
is
t
en
t
o
s
cillatio
n
s
with
co
n
s
id
er
ab
le
m
a
g
n
itu
d
e
in
th
e
ca
s
e
o
f
th
e
L
MS
co
n
tr
o
ller
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atio
n
s
with
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ed
u
ce
d
am
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litu
d
e
ar
e
o
b
s
er
v
e
d
with
th
e
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HSF
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L
MS
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n
tr
o
ll
er
.
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t
s
h
o
ws
th
at
t
h
e
weig
h
t
co
n
v
e
r
g
es
f
aster
,
a
n
d
a
s
m
aller
s
tatic
er
r
o
r
is
ac
h
iev
ed
in
s
tead
y
-
s
tate
co
n
d
itio
n
s
with
(
t
=
0
.
1
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0
.
5
s
.
)
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o
r
th
e
p
r
o
p
o
s
ed
I
HSF
-
L
MS
co
n
tr
o
l
s
ch
em
e.
N
o
w,
th
e
u
n
b
ala
n
ce
d
lo
a
d
co
n
d
itio
n
with
a
tim
e
f
r
am
e
o
f
t
=
0
.
8
to
t
=
0
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8
5
s
is
co
n
s
id
er
ed
.
I
t
is
n
o
tewo
r
th
y
th
at
d
u
r
in
g
d
y
n
am
ic
s
itu
atio
n
s
,
t
h
e
co
n
v
e
r
g
en
ce
o
f
th
e
p
r
o
p
o
s
ed
I
HSF
-
LMS
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b
ased
co
n
tr
o
l
tech
n
iq
u
e
is
b
etter
with
less
er
s
tead
y
-
s
tate
er
r
o
r
.
I
t sh
o
ws its
ef
f
ec
tiv
en
ess
d
u
r
in
g
v
o
lta
g
e
an
o
m
alies.
Fig
u
r
es 5
(
a)
-
5
(
c)
illu
s
tr
ate
th
e
h
ar
m
o
n
ic
an
al
y
s
is
o
f
lo
ad
v
o
l
tag
e
u
s
in
g
L
MS,
I
HSF
-
L
MS,
an
d
s
o
u
r
ce
v
o
ltag
e,
r
esp
ec
tiv
ely
.
Me
an
w
h
ile,
Fig
u
r
e
7
h
ig
h
lig
h
ts
th
e
DC
-
lin
k
v
o
ltag
e
r
esp
o
n
s
e
f
o
r
b
o
th
th
e
p
r
o
p
o
s
ed
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HSF
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L
MS
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n
tr
o
l
s
ch
em
e
an
d
th
e
co
n
v
en
tio
n
al
L
MS
alg
o
r
ith
m
,
with
an
ac
ce
p
tab
le
r
a
n
g
e
o
f
2
%
a
p
p
lied
f
o
r
DC
-
b
u
s
v
o
ltag
e
s
ettlin
g
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aly
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g
th
e
s
ettlin
g
tim
e
an
d
o
v
er
all
r
esp
o
n
s
e
in
Fig
u
r
e
7
,
it
b
ec
o
m
es
ev
id
en
t
th
at
th
e
I
HSF
-
L
MS
co
n
tr
o
l
s
ch
em
e
o
u
tp
e
r
f
o
r
m
s
th
e
c
o
n
v
e
n
tio
n
al
L
MS
in
d
y
n
am
ic
p
er
f
o
r
m
a
n
ce
.
T
h
e
p
r
o
p
o
s
ed
d
esig
n
ex
ce
ls
in
k
ey
ar
e
as,
i
n
c
lu
d
in
g
weig
h
t
co
n
v
er
g
en
ce
,
er
r
o
r
m
i
n
im
izatio
n
,
r
ed
u
ce
d
p
ea
k
o
v
e
r
s
h
o
o
t,
f
aster
r
is
e
tim
e,
im
p
r
o
v
ed
s
ettlin
g
ti
m
e,
an
d
ef
f
ec
tiv
e
h
ar
m
o
n
ic
m
itig
atio
n
.
T
h
e
co
m
p
ar
ativ
e
r
esu
lts
s
u
m
m
ar
ized
i
n
T
ab
le
2
f
u
r
t
h
er
em
p
h
asize
th
e
s
u
p
er
io
r
p
er
f
o
r
m
a
n
ce
o
f
th
e
I
HSF
-
L
MS
co
n
tr
o
ller
o
v
er
th
e
co
n
v
en
tio
n
al
L
MS,
v
alid
atin
g
its
ef
f
ec
tiv
en
ess
as a
r
o
b
u
s
t a
n
d
ef
f
icien
t c
o
n
tr
o
l s
tr
ateg
y
.
T
a
b
l
e
2
.
A
c
o
m
p
a
r
a
t
i
v
e
s
t
u
d
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f
t
h
e
c
o
n
v
e
n
t
i
o
n
a
l
a
l
g
o
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t
h
m
w
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t
h
t
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e
p
r
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p
o
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e
d
I
H
S
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M
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a
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e
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c
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
6
9
4
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
,
Vo
l.
16
,
No
.
2
,
J
u
n
e
20
25
:
1
0
8
3
-
1093
1090
(
a)
(
b
)
(
c)
Fig
u
r
e
5
.
Har
m
o
n
ic
a
n
aly
s
is
f
o
r
(
a)
s
o
u
r
ce
v
o
ltag
e
,
(
b
)
lo
a
d
v
o
ltag
e
,
an
d
(
c
)
lo
ad
c
u
r
r
en
t
,
with
p
r
o
p
o
s
ed
I
HSF
-
L
MS
an
d
co
n
v
e
n
tio
n
al
L
MS
co
n
tr
o
l sch
em
e
Fig
u
r
e
6
.
C
o
m
p
a
r
is
o
n
b
etwe
e
n
L
MS
an
d
I
HSF
-
L
MS
co
n
tr
o
l sch
em
e
b
ased
o
n
th
e
f
u
n
d
am
en
tal
ac
tiv
e
co
m
p
o
n
en
t o
f
p
h
ase
‘
a
’
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
I
SS
N:
2088
-
8
6
9
4
A
n
o
ve
l a
d
a
p
tive
co
n
tr
o
l sch
eme
fo
r
d
yn
a
mic
vo
lta
g
e
r
esto
r
e
r
(
Tu
mma
la
K
r
a
n
ti K
ir
a
n
)
1091
Fig
u
r
e
7
.
R
esp
o
n
s
e
o
f
DVR DC
-
lin
k
v
o
ltag
e
with
tu
n
ed
PI
c
o
n
tr
o
ller
g
ain
s
:
(
a)
I
HSF
-
L
MS
an
d
(
b
)
co
n
v
en
tio
n
al
L
MS
6.
CO
NCLU
SI
O
N
A
3
P3
W
V
SC
-
b
ased
DV
R
,
in
teg
r
ated
with
th
e
I
HSF
-
L
MS
co
n
tr
o
l
s
ch
em
e,
u
n
d
er
wen
t
a
co
m
p
r
eh
e
n
s
iv
e
ev
alu
atio
n
t
o
ass
es
s
its
p
er
f
o
r
m
an
ce
ac
r
o
s
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