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r
u
n
o
f
t
h
e
m
ill
ap
p
licatio
n
s
t
h
at
r
eq
u
ir
e
p
o
w
er
i
n
g
u
p
t
h
r
ee
-
p
h
a
s
e
(
VF
Ds
)
f
r
o
m
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
.
I
n
r
e
m
o
te
ar
ea
s
,
th
r
ee
p
h
a
s
e
ac
p
o
w
er
m
a
y
n
o
t b
e
ac
ce
s
s
ib
le.
Nu
m
er
o
u
s
V
FD
p
r
o
d
u
ce
r
s
f
o
r
ce
co
n
f
i
n
e
m
e
n
t
s
o
n
th
e
r
ati
n
g
o
f
th
e
VFD
f
o
r
u
s
e
w
it
h
a
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
.
Vital
co
n
ce
r
n
s
w
h
il
e
w
o
r
k
i
n
g
a
th
r
ee
-
p
h
a
s
e
VFD
f
r
o
m
a
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
c
e
ar
e
th
at
th
e
R
M
S
esti
m
atio
n
o
f
t
h
e
in
p
u
t
ac
is
n
o
less
th
a
n
t
w
ice
t
h
at
w
h
e
n
a
th
r
ee
-
p
h
a
s
e
s
u
p
p
l
y
i
s
u
ti
lize
d
f
o
r
a
g
iv
en
lo
ad
.
T
h
e
in
p
u
t
d
io
d
es
m
u
s
t
d
ea
l
w
it
h
t
h
e
h
ig
h
er
cu
r
r
en
t
in
ter
e
s
t
f
o
r
a
g
i
v
e
n
lo
ad
.
L
ik
e
w
is
e,
in
a
d
io
d
e
r
ec
tif
ier
w
it
h
a
v
as
t
d
c
tr
an
s
p
o
r
t
ca
p
ac
ito
r
,
th
e
cu
r
r
en
t
s
tr
ea
m
s
j
u
s
t
w
h
e
n
t
h
e
m
o
m
e
n
tar
y
esti
m
atio
n
o
f
t
h
e
i
n
p
u
t
v
o
ltag
e
i
s
h
ig
h
e
r
th
a
n
t
h
e
d
c
tr
an
s
p
o
r
t
v
o
ltag
e,
t
h
e
cu
r
r
e
n
t
s
tr
ea
m
is
ir
r
eg
u
lar
a
n
d
h
as
a
h
u
g
e
p
i
n
n
ac
le
w
h
e
n
th
e
i
n
p
u
t
is
a
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
.
T
h
e
h
ig
h
er
p
in
n
a
cle
cu
r
r
en
t
th
r
o
u
g
h
t
h
e
r
ec
ti
f
ier
d
io
d
e
ca
u
s
e
s
b
o
th
er
s
o
m
e
w
ar
m
w
o
r
r
y
i
n
t
h
e
d
io
d
es
an
d
m
a
y
p
r
o
m
p
t
u
n
ti
m
el
y
d
is
ap
p
o
in
t
m
en
t.
A
n
o
t
h
er
is
s
u
e
is
th
a
t
h
i
g
h
er
in
p
u
t
c
u
r
r
en
t
i
n
f
l
u
en
ce
s
th
e
i
n
p
u
t
ac
p
o
w
er
ter
m
i
n
al
s
q
u
ar
es
.
R
eg
ar
d
less
o
f
w
h
eth
er
t
h
e
d
i
o
d
es
ca
n
d
ea
l
w
it
h
th
e
h
i
g
h
er
c
u
r
r
en
t,
th
e
ter
m
i
n
al
p
iece
s
m
a
y
n
o
t
b
e
e
v
al
u
ate
d
to
d
ea
l
w
i
th
th
e
h
ig
h
er
R
M
S
cu
r
r
en
t
co
n
s
t
an
tl
y
.
I
n
p
u
t
c
u
r
r
en
t
s
y
m
p
h
o
n
io
u
s
t
w
i
s
ti
n
g
is
ad
d
itio
n
a
ll
y
h
i
g
h
wh
en
s
i
n
g
le
-
p
h
ase
i
n
p
u
t
is
u
til
i
ze
d
to
p
o
w
er
t
h
r
ee
-
p
h
ase
i
n
v
er
ter
s
.
Hi
g
h
er
co
n
s
o
n
an
t
s
u
b
s
ta
n
ce
i
s
r
elate
d
w
i
th
a
lo
w
er
i
n
p
u
t
p
o
w
er
f
ac
to
r
an
d
p
o
o
r
s
y
s
te
m
ef
f
icien
c
y
.
Si
n
g
le
-
p
h
ase
ac
s
u
p
p
l
y
b
r
in
g
s
ab
o
u
t
h
i
g
h
er
s
w
ell
v
o
lta
g
e
o
v
er
th
e
d
c
tr
an
s
p
o
r
t.
Hig
h
er
s
w
ell
v
o
ltag
e
m
ea
n
s
h
i
g
h
er
s
w
ell
cu
r
r
en
t
th
r
o
u
g
h
th
e
ca
p
ac
ito
r
an
d
m
o
r
e
w
ar
m
in
g
o
f
t
h
e
ca
p
ac
i
to
r
.
T
h
e
in
v
er
ter
i
s
n
o
r
m
all
y
d
er
ated
to
d
ea
l
w
it
h
th
e
h
ig
h
er
ca
p
ac
ito
r
s
w
ell
c
u
r
r
en
t.
T
h
u
s
,
t
h
er
e
is
a
n
ee
d
to
ad
d
r
ess
ev
er
y
o
n
e
o
f
th
ese
i
s
s
u
es.
Fo
r
th
i
s
,
a
n
o
n
-
r
eg
e
n
er
ati
v
e
c
ir
cu
it
i
s
i
n
cl
u
d
ed
b
et
w
ee
n
t
h
e
r
ec
tif
ier
an
d
i
n
v
er
ter
to
e
m
p
o
w
er
t
h
r
ee
p
h
ase
VFD
u
s
e
f
r
o
m
a
s
i
n
g
le
ac
s
u
p
p
l
y
.
W
h
e
n
u
ti
lizi
n
g
a
t
h
r
ee
-
p
h
a
s
e
VFD
p
o
w
er
ed
f
r
o
m
a
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
,
t
h
e
d
r
iv
e
's
o
u
tp
u
t
p
o
w
er
m
u
s
t
b
e
r
estricte
d
to
a
v
er
t
h
i
g
h
er
co
m
p
o
n
e
n
t
s
tr
es
s
es
i
n
it
an
d
in
th
e
i
n
p
u
t
p
o
w
er
s
y
s
te
m
.
A
t
t
h
e
p
o
in
t
w
h
e
n
an
i
n
d
u
ct
io
n
m
o
to
r
in
VFD
is
w
o
r
k
ed
f
r
o
m
a
co
n
tr
o
l,
to
r
q
u
e
r
ip
p
le
at
d
if
f
er
e
n
t
f
r
eq
u
e
n
cies
m
a
y
e
x
i
s
t
o
v
er
t
h
e
w
o
r
k
i
n
g
v
el
o
cit
y
r
u
n
.
I
t
is
o
f
s
i
g
n
i
f
ican
ce
th
at
t
h
e
h
ar
d
w
ar
e
n
o
t
b
e
w
o
r
k
ed
lo
n
g
er
th
a
n
q
u
ic
k
l
y
a
t
a
s
p
ee
d
w
h
er
e
a
th
u
n
d
er
o
u
s
c
o
n
d
itio
n
ex
i
s
ts
b
et
w
ee
n
th
e
to
r
s
io
n
al
s
y
s
te
m
a
n
d
th
e
elec
tr
ical
s
y
s
te
m
(
i.e
.
,
t
h
e
m
o
to
r
elec
tr
ical
to
r
q
u
e)
.
I
t
li
k
e
w
i
s
e
i
s
co
n
ce
i
v
ab
le
t
h
at
a
f
e
w
s
p
ee
d
s
i
n
s
id
e
t
h
e
w
o
r
k
i
n
g
ex
ten
t
m
a
y
r
elate
t
o
th
e
co
m
m
o
n
m
ec
h
a
n
ical
f
r
eq
u
en
cies
o
f
th
e
lo
ad
o
r
s
u
p
p
o
r
t
s
tr
u
ctu
r
e
an
d
o
p
er
atio
n
o
th
er
th
a
n
i
m
m
ed
iat
el
y
co
u
ld
b
e
h
ar
m
in
g
to
t
h
e
m
o
to
r
as
w
el
l
as
lo
ad
an
d
o
u
g
h
t
to
b
e
m
ai
n
tai
n
ed
a
s
tr
ateg
ic
d
is
tan
ce
f
r
o
m
at
t
h
o
s
e
r
ates.
T
h
er
e
ar
e
m
a
n
y
tec
h
n
iq
u
es
e
m
p
lo
y
ed
to
ad
d
r
ess
t
h
e
i
s
s
u
e
s
f
ac
ed
w
h
e
n
s
in
g
le
-
p
h
a
s
e
ac
s
u
p
p
l
y
is
u
s
ed
to
p
o
w
er
t
h
r
ee
-
p
h
a
s
e
V
F
Ds
[
4
]
-
[
1
0
]
.
T
h
e
co
n
v
en
tio
n
al
ac
tiv
e
b
o
o
s
t
to
p
o
lo
g
y
u
s
ed
f
o
r
p
o
w
er
i
n
g
VF
Ds
h
as
s
o
m
e
d
is
ad
v
a
n
ta
g
es.
T
h
e
m
ain
d
r
a
w
b
ac
k
o
f
v
o
ltag
e
r
i
p
p
le
is
o
v
er
co
m
e
b
y
u
s
i
n
g
in
ter
leav
i
n
g
o
f
b
o
o
s
t
co
n
v
er
ter
s
to
p
o
lo
g
y
[
5
]
.
I
n
[
6
]
,
a
b
r
id
g
eless
r
ec
ti
f
ier
t
h
at
h
a
s
h
ig
h
p
o
w
er
d
en
s
it
y
e
m
p
lo
y
i
n
g
co
u
p
led
in
d
u
cto
r
s
is
d
is
c
u
s
s
ed
.
I
n
s
u
c
h
to
p
o
lo
g
ies,
th
e
b
o
o
s
t
in
d
u
ct
o
r
is
o
n
th
e
in
p
u
t
ac
s
id
e.
Ho
w
e
v
er
,
an
i
m
p
o
r
tan
t
d
r
a
w
b
ac
k
o
f
m
o
s
t
b
r
id
g
eles
s
r
ec
tif
ier
s
i
s
t
h
at
th
e
y
n
ee
d
h
ig
h
-
s
p
ee
d
f
ast
-
r
ec
o
v
er
y
d
io
d
es
in
t
h
e
r
ec
ti
f
ier
cir
cu
it,
w
h
ic
h
m
ak
e
s
th
e
m
e
x
p
en
s
iv
e.
I
n
[
7
]
,
a
d
c
b
u
s
m
i
d
p
o
in
t
is
cr
ea
ted
u
s
in
g
t
w
o
ca
p
ac
ito
r
s
in
s
er
ies.
On
e
o
f
t
h
e
p
h
a
s
es
o
f
t
h
e
t
h
r
ee
-
p
h
a
s
e
ac
m
o
to
r
is
al
s
o
co
n
n
ec
ted
to
th
e
d
c
b
u
s
m
id
p
o
in
t.
T
h
e
r
em
a
in
i
n
g
t
w
o
p
h
ases
ar
e
co
n
n
ec
ted
as
u
s
u
al
to
t
w
o
o
f
th
e
o
u
tp
u
t
p
h
a
s
es
o
f
a
t
y
p
ical
o
u
tp
u
t
s
tag
e
o
f
a
f
o
u
r
-
s
w
itc
h
H
-
b
r
id
g
e
to
p
o
lo
g
y
.
T
h
e
to
p
o
lo
g
y
o
f
[
7
]
is
also
in
h
er
en
tl
y
r
eg
e
n
er
ativ
e
,
w
h
i
c
h
ca
n
b
e
an
i
m
p
o
r
tan
t
ad
v
an
ta
g
e
in
ce
r
tai
n
ap
p
licatio
n
s
.
T
h
e
to
p
o
l
o
g
y
d
is
cu
s
s
ed
in
[
8
]
u
s
es
th
e
s
tr
u
ct
u
r
e
w
h
ich
i
s
k
n
o
w
n
as
t
h
e
B
4
to
p
o
lo
g
y
as
its
b
ase.
I
n
[
8
]
m
o
d
if
icatio
n
s
to
th
e
b
ase
to
p
o
lo
g
y
i
s
s
u
g
g
e
s
ted
b
y
ad
d
in
g
e
x
tr
a
s
w
i
tch
e
s
to
cr
e
ate
th
r
ee
ad
d
iti
o
n
al
in
ter
co
n
n
ec
tio
n
o
p
tio
n
s
f
o
r
th
e
m
o
to
r
w
i
n
d
in
g
s
,
k
n
o
w
n
a
s
B
4
f
,
B
4
v
f
,
a
n
d
B
4
v
f
zi
n
.
I
n
t
w
o
o
f
th
e
s
e
n
e
w
v
ar
iatio
n
s
(
B
4
f
a
n
d
B
4
v
f
z)
,
o
n
e
n
ee
d
s
to
ac
ce
s
s
t
h
e
n
eu
tr
al
p
o
in
t
o
f
th
e
ac
m
o
to
r
,
w
h
ic
h
m
ak
e
s
t
h
e
m
i
m
p
r
ac
tical
f
r
o
m
t
h
e
i
n
d
u
s
tr
ia
l
ap
p
licatio
n
p
o
in
t
o
f
v
ie
w
.
I
n
ad
d
itio
n
,
t
h
e
e
x
tr
a
s
w
itc
h
es
m
ak
e
t
h
e
to
p
o
lo
g
ies
th
e
s
a
m
e
co
s
t
as
a
tr
ad
itio
n
al
s
ix
s
w
i
tch
(
B
6
)
to
p
o
lo
g
y
.
Var
io
u
s
v
er
s
io
n
s
o
f
th
e
b
ase
to
p
o
lo
g
y
h
a
v
e
b
ee
n
w
e
ll
ex
p
lo
ited
in
[
9
]
to
r
esu
lt
in
in
ter
esti
n
g
lo
w
-
co
s
t
to
p
o
lo
g
ies.
I
n
all
th
e
to
p
o
lo
g
ies
d
is
cu
s
s
ed
in
[
7
]
-
[
9
]
,
o
n
e
o
r
m
o
r
e
m
o
to
r
w
in
d
i
n
g
s
ar
e
co
n
n
ec
ted
to
th
e
in
p
u
t
s
i
n
g
le
p
h
ase
ac
s
u
p
p
l
y
.
T
h
e
th
ir
d
p
h
ase
is
co
n
tr
o
lled
in
a
p
u
ls
e
w
id
t
h
-
m
o
d
u
lated
m
an
n
er
to
g
e
n
er
ate
p
o
s
itiv
e
s
eq
u
en
ce
v
o
ltag
e
s
.
C
o
m
m
o
n
-
m
o
d
e
v
o
ltag
e
an
d
E
MI
co
n
d
u
cted
b
ac
k
i
n
to
th
e
s
o
u
r
c
e
r
e
m
ain
t
h
e
m
aj
o
r
is
s
u
es
w
it
h
th
e
ad
d
ed
d
r
a
w
b
ac
k
o
f
r
eq
u
ir
in
g
lar
g
er
v
o
lta
g
e
r
atin
g
s
f
o
r
t
h
e
s
w
i
tch
e
s
in
t
h
e
to
p
o
lo
g
y
.
I
n
n
u
m
er
o
u
s
co
u
n
t
r
y
r
e
g
io
n
s
,
b
ec
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s
e
o
f
th
e
i
n
a
cc
ess
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y
o
f
t
h
r
ee
p
h
ase
ac
p
o
w
er
,
t
h
r
ee
-
p
h
a
s
e
VFDs
ar
e
f
r
eq
u
en
t
l
y
r
eq
u
ir
ed
to
w
o
r
k
f
r
o
m
a
s
i
n
g
le
-
p
h
ase
a
c
s
o
u
r
ce
.
T
h
e
in
p
u
t
cu
r
r
en
t
s
tr
ea
m
in
g
i
n
to
a
t
h
r
ee
-
p
h
a
s
e
VF
D
w
o
r
k
i
n
g
f
r
o
m
a
s
in
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
i
s
n
o
l
ess
t
h
a
n
t
w
o
ti
m
es
m
o
r
e
p
r
o
m
i
n
en
t
t
h
a
n
th
at
s
tr
ea
m
i
n
g
w
it
h
a
th
r
ee
-
p
h
a
s
e
ac
s
o
u
r
ce
;
th
u
s
l
y
,
t
h
er
e
ar
e
s
u
r
e
i
s
s
u
es
th
a
t
m
u
s
t
b
e
ten
d
ed
to
w
h
e
n
u
til
izin
g
th
r
e
e
p
h
ase
d
r
iv
es
w
i
th
a
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
.
T
h
e
p
r
im
ar
y
is
s
u
e
is
ca
p
ac
ito
r
s
o
v
er
h
ea
ti
n
g
b
ec
au
s
e
o
f
h
i
g
h
er
r
ip
p
le
cu
r
r
en
ts
.
T
h
e
s
ec
o
n
d
i
s
s
u
e
is
s
u
r
p
ass
i
n
g
t
h
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p
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k
c
u
r
r
en
t
r
atin
g
o
f
t
h
e
in
p
u
t
d
io
d
es.
L
a
m
e
n
tab
l
y
,
f
o
r
a
f
e
w
s
y
s
te
m
s
,
t
h
e
d
io
d
e's
p
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r
r
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t
r
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co
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ld
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r
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r
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en
t
l
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m
it
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t
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s
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ito
r
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Fo
r
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ch
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i
f
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tp
u
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p
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tili
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v
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r
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ased
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en
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is
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t
h
at
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ier
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et
Evaluation Warning : The document was created with Spire.PDF for Python.
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Vo
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9
,
No
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2
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r
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201
9
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4
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f
o
cu
s
ed
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T
h
is
w
i
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les
s
en
t
h
e
m
ea
n
ti
m
e
b
et
w
ee
n
f
ail
u
r
es
(
MT
B
F)
f
o
r
th
e
d
io
d
es.
A
ls
o
,
o
n
e
m
u
s
t
b
e
w
o
r
r
ied
ab
o
u
t
th
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p
u
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d
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p
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t
ter
m
i
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al
p
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s
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B
y
an
d
lar
g
e,
th
e
d
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es
m
ig
h
t
h
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ig
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m
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q
u
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(
R
M
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cu
r
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en
t,
y
et
t
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e
ter
m
i
n
al
p
iece
s
m
a
y
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o
t
b
e
ev
al
u
ated
to
d
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l
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it
h
t
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u
r
r
e
n
t
o
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s
to
p
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is
e.
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o
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t
th
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s
s
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es,
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m
er
o
u
s
VFD
p
r
o
d
u
ce
r
s
u
til
ize
th
r
ee
m
eth
o
d
s
f
o
r
m
a
n
ag
i
n
g
t
h
r
ee
-
p
h
ase
VFD
s
p
o
w
er
ed
f
r
o
m
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
s
:
1
)
d
er
ate
VFDs
,
2
)
ex
tr
a
eq
u
ip
m
en
t,
an
d
3
)
u
tili
zin
g
co
n
tr
o
l
ca
lcu
latio
n
s
to
li
m
it
t
h
e
p
ar
t
s
tr
ess
es
in
th
e
V
FD.
1
.
1
.
Der
a
t
e
VF
D’
s
Mo
s
t
o
f
th
e
i
s
s
u
es
m
en
tio
n
ed
in
th
e
p
r
ec
ed
in
g
s
ec
tio
n
ar
e
ad
d
r
ess
ed
b
y
s
e
v
er
el
y
d
er
atin
g
th
e
VFD
s
f
o
r
s
in
g
le
p
h
ase
ap
p
licatio
n
s
.
I
n
th
e
VFD,
th
e
d
er
atin
g
s
c
h
e
m
e
h
av
e
co
n
f
id
en
ce
o
n
t
h
e
d
c
-
b
u
s
ca
p
ac
ito
r
r
ip
p
le
-
cu
r
r
en
t
r
ati
n
g
.
I
t’
s
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s
i
m
p
le
an
d
ea
s
y
to
d
ev
elo
p
as
it
d
o
esn
’
t
r
eq
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ir
e
an
y
a
d
v
an
ce
m
en
t
in
t
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e
h
ar
d
w
ar
e.
I
n
m
an
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itu
a
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s
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co
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l a
lg
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s
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m
ilar
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tr
ad
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l p
h
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lo
s
s
m
o
n
ito
r
in
g
an
d
p
r
o
tectio
n
b
u
ilt
i
n
.
S
til
l,
it
s
h
o
u
ld
b
e
s
e
v
er
el
y
d
er
ated
to
o
b
tain
th
e
m
o
s
t
r
eli
ab
le
p
er
f
o
r
m
a
n
ce
.
R
ec
en
t
d
ev
elo
p
m
en
t
s
in
t
h
e
h
ar
d
w
ar
e
-
b
ased
tech
n
i
q
u
e
s
h
a
v
e
ad
d
r
ess
ed
th
is
is
s
u
e
[
4
]
-
[
1
2
]
.
A
n
o
v
el,
lo
w
-
co
s
t
h
ar
d
w
ar
e
tec
h
n
iq
u
e
[
4
]
th
at
d
o
es n
o
t n
ee
d
an
y
VF
D
m
o
d
i
f
ica
tio
n
is
d
is
c
u
s
s
ed
n
e
x
t.
1
.
2
.
Addi
t
io
na
l
ha
rdw
a
re
-
ba
s
ed
t
o
po
lo
g
y
t
o
o
v
er
co
m
e
d
er
a
t
ing
o
f
VF
Ds
T
h
e
f
u
n
d
a
m
e
n
tal
g
u
id
eli
n
e
o
f
th
e
to
p
o
lo
g
y
p
r
o
p
o
s
ed
in
[
1
1
]
is
to
s
to
r
e
en
er
g
y
in
an
o
u
t
s
id
e
in
d
u
cto
r
an
d
r
ec
o
v
er
it
at
a
s
u
itab
le
m
o
m
en
t
o
f
ti
m
e.
A
b
id
ir
ec
tio
n
al
s
w
itc
h
is
u
til
ized
f
o
r
p
u
ttin
g
aw
a
y
a
n
d
r
ec
o
v
er
in
g
en
er
g
y
f
r
o
m
th
e
i
n
d
u
cto
r
,
an
d
its
cu
r
r
en
t
r
atin
g
is
u
n
d
er
3
5
%
o
f
th
e
ap
p
r
aised
cu
r
r
en
t
o
f
t
h
e
air
co
n
d
itio
n
er
to
d
c
r
ec
tif
ier
.
T
h
e
to
p
o
lo
g
y
li
k
e
w
i
s
e
lo
an
s
it
s
el
f
f
o
r
s
i
m
p
le
j
o
in
in
g
w
it
h
t
h
e
VF
D.
T
h
e
to
p
o
lo
g
y
p
r
o
p
o
s
ed
in
[
1
1
]
is
ap
p
ea
r
ed
in
F
i
g
u
r
e
1
.
On
e
es
s
en
t
ial
d
o
w
n
s
id
e
o
f
th
is
to
p
o
lo
g
y
i
s
t
h
at
t
h
e
l
if
t
i
n
d
u
cto
r
is
e
x
p
an
s
iv
e
in
es
ti
m
ate
(
0
.
2
p
.
u
.
)
s
i
n
ce
th
e
c
h
ar
g
i
n
g
c
y
cle
h
ap
p
en
s
j
u
s
t
t
w
ice
e
v
er
y
in
p
u
t
c
y
cle.
B
e
th
at
as
it
m
a
y
,
th
e
u
tili
za
tio
n
o
f
e
x
tr
a
eq
u
ip
m
en
t
ad
d
s
to
t
h
e
s
y
s
te
m
's
co
s
t,
s
ize,
an
d
u
n
w
av
er
i
n
g
q
u
a
l
it
y
.
C
er
tain
co
n
tr
o
l
-
ca
lcu
latio
n
m
et
h
o
d
s
ca
n
b
e
u
t
ilized
,
in
co
n
j
u
n
ct
io
n
w
it
h
t
h
e
d
er
ate
ch
o
ice,
to
en
h
an
ce
t
h
e
p
er
f
o
r
m
a
n
ce
an
d
u
n
w
av
er
i
n
g
q
u
alit
y
o
f
t
h
e
VF
Ds p
o
w
er
ed
f
r
o
m
a
s
i
n
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
.
Fig
u
r
e
1
.
No
n
-
r
eg
e
n
er
ati
v
e
s
i
n
g
le
-
p
h
ase
ac
ti
v
e
f
r
o
n
t
-
en
d
cir
c
u
it
1
.
3
.
F
re
qu
ency
f
o
ld
-
ba
ck
ba
s
ed
o
n v
o
lt
a
g
e
rippl
e
a
cr
o
s
s
dc
bu
s
ca
pa
cit
o
r
I
n
t
h
e
f
r
eq
u
en
c
y
o
v
er
la
y
b
ac
k
s
tr
ate
g
y
,
w
h
ic
h
is
b
a
s
ed
o
n
s
en
s
i
n
g
t
h
e
r
ip
p
le
v
o
ltag
e
o
v
er
th
e
d
c
b
u
s
ca
p
ac
ito
r
s
as
d
ep
icted
in
[
1
3
]
,
th
e
ess
e
n
tial
i
n
tr
o
d
u
ce
is
t
h
at
t
h
e
d
c
-
b
u
s
r
ip
p
le
-
cu
r
r
e
n
t
a
m
p
lit
u
d
e
ca
n
b
e
an
ticip
ated
b
y
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ti
m
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tin
g
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h
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p
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v
o
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e
o
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.
Sin
ce
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c
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,
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m
m
e
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d
c
-
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ca
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r
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v
o
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T
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ca
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r
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p
ec
if
icall
y
co
r
r
e
s
p
o
n
d
in
g
to
th
e
d
c
-
b
u
s
ca
p
ac
ito
r
-
v
o
lta
g
e
r
ip
p
le.
T
h
e
r
ip
p
le
o
v
er
th
e
d
c
b
u
s
v
o
lta
g
e
is
esti
m
ated
,
an
d
t
h
e
d
r
iv
e
o
u
t
p
u
t f
r
eq
u
e
n
c
y
is
d
i
m
i
n
is
h
ed
in
lik
e
m
an
n
er
to
co
n
f
i
n
e
th
e
o
u
tp
u
t p
o
w
er
a
n
d
,
all,
as
f
ar
as
p
o
s
s
ib
le
t
h
e
r
ip
p
le
cu
r
r
en
t
th
r
o
u
g
h
t
h
e
ca
p
ac
ito
r
.
Desp
ite
t
h
e
f
ac
t
t
h
at
t
h
i
s
t
ec
h
n
iq
u
e
h
as
b
ee
n
r
ec
eiv
ed
an
d
r
eg
u
lar
l
y
ad
j
u
s
t
ed
[
1
4
]
in
th
e
b
u
s
in
e
s
s
s
i
n
ce
it
ap
p
ea
r
s
to
co
n
f
in
e
t
h
e
p
o
w
er
r
atin
g
o
f
t
h
r
ee
-
p
h
ase
VF
Ds
t
h
at
ar
e
w
o
r
k
i
n
g
f
r
o
m
s
in
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
s
,
it
d
o
esn
'
t
r
ep
r
esen
t
th
e
b
u
r
d
en
s
t
h
at
h
ap
p
en
i
n
d
if
f
er
e
n
t
p
ar
ts
o
f
th
e
VFD,
p
ar
ticu
lar
l
y
b
ec
au
s
e
o
f
th
e
d
io
d
e
cr
est
cu
r
r
en
t
an
d
th
e
R
MS
cu
r
r
en
t
th
at
g
o
n
e
th
r
o
u
g
h
t
h
e
i
n
p
u
t
ter
m
in
a
ls
.
E
v
en
t
h
o
u
g
h
th
e
f
r
eq
u
e
n
c
y
c
r
ea
s
e
b
ac
k
in
v
ie
w
o
f
t
h
e
d
c
-
b
u
s
v
o
lta
g
e
-
r
ip
p
le
tech
n
iq
u
e
i
s
s
tr
ai
g
h
tf
o
r
w
ar
d
an
d
s
i
m
p
le
to
u
t
ilize;
ce
r
tai
n
is
s
u
es
h
a
v
e
b
ee
n
s
ee
n
i
n
t
h
e
f
ield
.
T
h
e
m
o
s
t
ess
e
n
tial o
n
e
i
s
t
h
at
t
h
e
d
c
-
b
u
s
ca
p
ac
ito
r
-
r
ip
p
le
-
v
o
lta
g
e
r
es
is
t
an
ce
le
v
el
m
i
g
h
t b
e
h
i
g
h
er
th
a
n
t
h
e
cr
es
t to
-
cr
e
s
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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&
C
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p
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n
g
I
SS
N:
2088
-
8708
V
a
r
ia
b
le
fr
eq
u
en
cy
d
r
ive
o
p
timiz
a
tio
n
u
s
in
g
to
r
q
u
e
r
ip
p
le
c
o
n
tr
o
l a
n
d
s
e
lf
-
tu
n
in
g
…
(
Mu
d
u
n
d
i R
ek
h
a
)
805
cu
r
r
en
t
-
r
ip
p
le
-
ta
k
i
n
g
ca
r
e
o
f
ab
ilit
y
o
f
in
p
u
t
-
d
io
d
e
r
ec
tif
ier
s
o
r
th
e
R
MS
c
u
r
r
en
t
li
m
it
o
f
th
e
i
n
p
u
t
ter
m
i
n
al
p
iece
s
,
p
ar
ticu
lar
l
y
in
litt
ler
m
ea
s
u
r
ed
VFD
s
.
W
h
ile
th
e
c
alcu
latio
n
m
a
y
d
ec
r
ea
s
e
th
e
o
u
tp
u
t
f
r
eq
u
e
n
c
y
an
d
co
n
s
eq
u
e
n
tl
y
r
estra
i
n
th
e
o
u
tp
u
t
p
o
w
er
,
it
m
i
g
h
t
ev
e
n
n
o
w
b
e
h
i
g
h
er
t
h
an
w
h
at
th
e
i
n
p
u
t
d
io
d
es
ca
n
d
ea
l
w
it
h
o
n
a
n
o
n
s
to
p
p
r
em
i
s
e.
B
esid
es,
th
e
f
r
eq
u
e
n
c
y
f
o
ld
-
b
ac
k
i
n
v
ie
w
o
f
th
e
d
c
-
b
u
s
v
o
lta
g
e
-
r
ip
p
le
s
tr
ateg
y
is
n
'
t
a
n
i
m
m
ed
iate
co
n
tr
o
l te
ch
n
iq
u
e.
T
h
e
d
c
-
b
u
s
v
o
ltag
e
-
r
ip
p
le
m
a
y
n
o
t
m
ir
r
o
r
th
e
g
e
n
u
in
e
co
n
d
itio
n
o
f
th
e
ca
p
ac
ito
r
.
On
th
e
o
f
f
ch
a
n
ce
th
at
ca
p
ac
itan
ce
h
as
d
ec
a
y
ed
,
at
th
at
p
o
in
t
t
h
e
n
o
r
m
al
v
o
lta
g
e
h
eld
ca
n
b
e
lo
w
w
h
ile
t
h
e
r
ip
p
le
co
u
ld
in
an
y
ca
s
e
b
e
in
s
id
e
as
f
ar
as
p
o
s
s
ib
l
e.
A
lo
w
er
d
c
b
u
s
v
o
ltag
e
w
ill
ca
u
s
e
h
i
g
h
er
in
p
u
t
c
u
r
r
en
t
f
o
r
a
g
i
v
e
n
lo
ad
lev
e
l
an
d
ca
n
u
n
f
a
v
o
r
ab
l
y
i
n
f
l
u
e
n
c
e
th
e
in
p
u
t
d
io
d
es
an
d
ter
m
i
n
a
l
p
iece
s
.
A
co
m
p
ar
ativ
e
s
u
cc
ess
io
n
o
f
o
cc
asio
n
s
ca
n
h
ap
p
en
i
f
th
e
s
in
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
n
o
u
r
is
h
i
n
g
t
h
e
d
r
iv
e
is
a
f
ee
b
le
ac
s
o
u
r
ce
.
C
o
n
s
e
q
u
en
tl
y
,
th
e
d
c
-
b
u
s
v
o
ltag
e
r
ip
p
le
is
n
'
t
ad
eq
u
ate
l
y
s
o
lid
s
i
n
ce
it
d
is
r
e
g
ar
d
s
o
u
ter
co
m
p
o
n
en
t
s
,
f
o
r
ex
a
m
p
le,
in
p
u
t
v
o
l
tag
e,
s
o
u
r
ce
i
m
p
ed
a
n
ce
,
an
d
p
o
w
er
f
u
l c
ap
ac
itan
ce
,
w
h
ich
ca
n
i
n
f
l
u
en
ce
th
e
lo
ad
lev
el
at
w
h
ic
h
f
o
ld
-
b
ac
k
h
ap
p
en
s
,
w
h
ic
h
ca
n
p
r
o
m
p
t p
o
o
r
VFD
u
s
e.
T
o
a
d
d
r
ess
th
ese
is
s
u
e
s
,
n
u
m
e
r
o
u
s
VFD
m
a
k
er
s
d
er
ate
th
e
d
r
iv
e.
C
o
m
m
o
n
l
y
,
co
n
s
id
er
in
g
th
e
d
c
-
b
u
s
v
o
ltag
e
r
ip
p
le
[
1
5
]
,
th
e
o
u
tp
u
t
f
r
eq
u
en
c
y
o
f
t
h
e
d
r
iv
e
i
s
co
n
s
tr
ain
ed
w
it
h
t
h
e
g
o
al
t
h
at
t
h
e
ca
p
ac
ito
r
s
ar
e
n
o
t
o
v
er
e
m
p
h
a
s
ized
.
T
h
is
tech
n
iq
u
e
d
o
es
n
o
t
co
n
s
id
er
th
e
s
tr
e
s
s
es
in
o
t
h
er
VFD
co
m
p
o
n
e
n
ts
,
p
ar
ticu
lar
l
y
t
h
e
in
p
u
t
d
io
d
es
an
d
ter
m
i
n
al
p
iece
s
.
R
ec
en
tl
y
,
[
1
6
]
p
r
o
p
o
s
ed
a
m
et
h
o
d
f
o
r
p
r
o
tectin
g
t
h
e
d
r
iv
e,
w
h
ic
h
h
a
s
in
f
o
r
m
atio
n
th
a
t
is
r
elate
d
to
th
e
v
ar
io
u
s
p
ar
ts
s
tr
es
s
es
i
n
VFD,
w
h
ich
in
cl
u
d
es
t
h
e
ter
m
i
n
al
b
lo
ck
a
n
d
th
e
d
io
d
es
at
th
e
i
n
p
u
t
s
id
e
a
n
d
t
h
e
d
c
b
u
s
ca
p
ac
ito
r
s
.
B
y
m
i
tig
atin
g
t
h
e
o
u
tp
u
t
f
r
eq
u
e
n
c
y
,
th
e
o
u
tp
u
t
p
o
w
er
ca
n
b
e
r
estricte
d
b
ased
o
n
th
e
m
ea
n
an
d
r
ip
p
le
a
m
p
litu
d
es
o
f
th
e
Q
A
C
i
n
s
tead
o
f
th
e
d
c
-
b
u
s
-
v
o
lta
g
e
r
ip
p
le.
T
h
is
m
et
h
o
d
d
o
es
n
o
t
co
n
s
id
er
th
e
s
tr
es
s
o
v
er
AC
m
o
to
r
i.e
.
,
co
n
tr
o
llin
g
o
f
to
r
q
u
e
r
ip
p
les
o
cc
u
r
r
en
ce
i
n
m
o
to
r
w
h
e
n
it
o
p
er
ates
at
v
ar
io
u
s
f
r
eq
u
en
cie
s
o
v
er
d
if
f
er
en
t
r
a
n
g
e
o
f
s
p
ee
d
.
I
n
t
h
is
p
r
o
p
o
s
al,
au
th
o
r
s
in
tr
o
d
u
ce
d
a
m
o
to
r
q
-
ax
is
c
u
r
r
en
t
w
i
th
to
r
q
u
e
r
ip
p
le
co
n
tr
o
l (
MQ
AC
-
T
R
C
)
o
f
a
n
i
n
d
u
ctio
n
m
o
to
r
an
d
s
elf
-
t
u
n
in
g
P
I
co
n
tr
o
ller
w
it
h
p
ar
ticle
s
w
ar
m
o
p
ti
m
izatio
n
(
ST
P
-
P
SO)
f
o
r
m
iti
g
ati
n
g
t
h
e
s
tr
ess
o
v
er
i
n
d
u
ctio
n
m
o
to
r
b
y
t
h
e
eli
m
i
n
atio
n
an
d
co
n
tr
o
llin
g
th
e
to
r
q
u
e
r
ip
p
le,
cu
r
r
en
t
h
ar
m
o
n
ic
s
a
n
d
ac
tiv
e
p
er
f
o
r
m
a
n
ce
f
o
r
s
u
d
d
en
c
h
an
g
es i
n
s
p
ee
d
an
d
l
o
ad
.
T
h
e
n
o
v
el
co
n
tr
ib
u
tio
n
s
o
f
t
h
i
s
w
o
r
k
ca
n
b
e
s
u
m
m
ar
ized
as
f
o
llo
w
s
:
a)
No
v
el
u
s
e
o
f
MQ
A
C
-
T
R
C
an
d
STP
-
P
SO
f
o
r
o
p
ti
m
izi
n
g
t
h
e
VFD’
s
b
y
m
it
ig
at
in
t
h
e
s
tr
e
s
s
o
v
er
th
e
in
d
u
ctio
n
m
o
to
r
,
v
ar
io
u
s
co
m
p
o
n
en
ts
a
n
d
s
u
d
d
en
c
h
a
n
g
e
s
in
s
p
ee
d
a
n
d
lo
ad
.
T
h
is
co
m
b
o
h
as
n
o
t
b
ee
n
u
s
ed
f
o
r
th
e
VFD
ap
p
lica
tio
n
s
b
ef
o
r
e,
ac
co
r
d
in
g
to
th
e
b
est k
n
o
w
led
g
e
o
f
t
h
e
au
t
h
o
r
s
.
b)
On
l
y
f
e
w
r
esear
ch
er
s
h
av
e
p
r
esen
ted
th
e
MQ
AC
[
1
6
]
an
d
d
c
-
b
u
s
v
o
lta
g
e
r
ip
p
le
[
1
5
]
to
en
h
a
n
ce
th
e
lif
e
t
i
m
e
o
f
V
FD
’
s
b
y
eli
m
i
n
a
tin
g
t
h
e
s
tr
e
s
s
o
v
er
v
ar
io
u
s
co
m
p
o
n
en
ts
.
Ho
w
e
v
er
,
th
e
a
u
t
h
o
r
s
in
[
1
5
]
an
d
[
1
6
]
d
o
esn
’
t c
o
n
s
id
er
th
e
s
tr
ess
o
v
er
i
n
d
u
ctio
n
m
o
to
r
.
c)
A
f
u
ll
y
n
e
w
f
r
a
m
e
w
o
r
k
is
p
r
o
p
o
s
ed
f
o
r
f
u
r
th
er
m
iti
g
atio
n
o
f
th
e
s
tr
ess
o
v
er
th
e
v
ar
io
u
s
c
o
m
p
o
n
en
t
s
an
d
in
d
u
c
tio
n
m
o
to
r
u
s
i
n
g
M
QAC
-
T
R
C
an
d
ST
P
-
P
SO
f
o
r
m
iti
g
ati
n
g
th
e
l
i
m
itatio
n
s
o
f
th
e
w
o
r
k
s
p
r
esn
ee
td
in
[
1
5
]
an
d
[
1
6
]
.
T
h
e
r
est
o
f
th
e
p
ap
er
is
o
r
g
an
ized
as
f
o
llo
w
s
:
T
h
e
p
r
o
p
o
s
ed
co
n
tr
o
l
s
tr
ateg
y
is
d
escr
ib
ed
in
Sectio
n
2
.
Sec
tio
n
3
ex
p
lai
n
s
th
e
r
es
u
lt
s
an
d
co
m
p
ar
ati
v
e
ev
alu
a
tio
n
s
ag
ai
n
s
t
liter
at
u
r
e.
Fin
al
l
y
,
Sectio
n
4
co
n
clu
d
es t
h
e
p
ap
er
f
o
llo
w
ed
b
y
r
e
f
er
en
ce
s
.
2.
P
RO
P
O
SE
D
CO
NT
RO
L
M
O
DE
L
T
h
e
p
r
o
p
o
s
ed
m
et
h
o
d
ad
v
o
ca
tes
t
h
e
u
s
e
o
f
a
v
ar
iab
le
th
at
h
as
i
n
f
o
r
m
atio
n
o
n
co
m
p
o
n
e
n
t
s
tr
ess
e
s
an
d
is
d
ir
ec
tl
y
m
ea
s
u
r
ed
in
s
te
ad
o
f
esti
m
ated
.
T
h
e
p
ar
am
ete
r
th
at
h
a
s
t
h
ese
d
etail
s
alo
n
g
w
it
h
i
n
f
o
r
m
atio
n
o
n
o
u
tp
u
t
lo
ad
co
n
d
itio
n
s
i
s
t
h
e
t
o
r
q
u
e
-
p
r
o
d
u
cin
g
,
o
r
q
-
a
x
is
,
co
m
p
o
n
en
t
o
f
t
h
e
o
u
tp
u
t
cu
r
r
e
n
t
th
at
r
ep
r
esen
t
s
t
h
e
ac
tiv
e
c
u
r
r
en
t
o
f
t
h
e
m
o
to
r
.
I
n
a
n
y
V
FD,
f
o
r
p
r
o
tectio
n
a
n
d
co
n
tr
o
l
p
u
r
p
o
s
e,
t
h
er
e
i
s
a
n
ee
d
o
f
co
n
ti
n
u
o
u
s
m
ea
s
u
r
e
m
e
n
t
o
f
th
e
o
u
tp
u
t
c
u
r
r
en
t.
B
y
u
tili
zi
n
g
t
h
e
o
u
tp
u
t
c
u
r
r
en
t,
co
m
p
o
n
e
n
t
q
-
ax
i
s
is
e
v
al
u
ated
o
n
a
co
n
tin
u
al
b
asis
a
n
d
a
co
n
tr
o
lled
r
esp
o
n
s
e
w
il
l
b
e
o
f
f
er
ed
to
lo
ad
en
h
an
ce
m
e
n
t.
T
h
er
ef
o
r
e,
s
tr
ess
in
t
h
e
co
m
p
o
n
e
n
t
s
o
f
VFD
g
ets
i
n
cr
ea
s
ed
,
esp
ec
iall
y
w
h
e
n
it
is
p
o
w
er
ed
f
r
o
m
a
s
i
n
g
le
-
p
h
a
s
e
a
c
s
o
u
r
ce
.
T
h
er
e
a
r
e
t
w
o
a
s
p
ec
ts
o
f
t
h
is
c
u
r
r
en
t:
1
)
t
h
e
a
v
er
ag
e
v
al
u
e
o
f
q
-
a
x
is
c
u
r
r
en
t (
I
Q
-
A
VG
)
a
n
d
2
)
th
e
p
ea
k
-
to
-
p
ea
k
r
ip
p
le
v
al
u
e
o
f
q
-
a
x
is
cu
r
r
e
n
t
(
I
Q
-
R
I
P
P
L
E
)
.
T
h
e
v
al
u
e
o
f
t
h
e
q
-
a
x
i
s
a
v
er
ag
e
cu
r
r
en
t
m
a
y
b
e
u
tili
ze
d
f
o
r
r
e
s
tr
ictin
g
th
e
VFD
’
s
o
u
tp
u
t
p
o
w
er
,
w
h
ich
lead
s
to
th
e
r
ed
u
ctio
n
o
f
s
tr
es
s
es
o
v
er
th
e
in
p
u
t
d
io
d
es
as
w
el
l
as
t
h
e
ter
m
i
n
al
b
lo
ck
s
,
esp
ec
iall
y
in
lo
w
-
p
o
w
er
V
FD
s
.
B
y
t
h
e
u
ti
lizatio
n
o
f
p
ea
k
-
to
-
p
ea
k
q
-
ax
i
s
r
ip
p
le
c
u
r
r
en
t,
w
e
ca
n
r
estrict
t
h
e
r
ip
p
le
cu
r
r
en
t
v
ia
d
c
-
b
u
s
ca
p
ac
ito
r
s
.
T
h
is
d
u
al
-
b
if
u
r
ca
te
s
ch
e
m
e
h
elp
s
f
o
r
VFD
’
s
o
p
ti
m
izatio
n
f
o
r
th
e
u
tili
za
t
io
n
w
it
h
a
s
in
g
le
-
p
h
ase
ac
s
o
u
r
ce
.
T
h
e
p
r
o
p
o
s
ed
tech
n
iq
u
e
ad
v
o
ca
tes
t
h
e
u
tili
za
tio
n
o
f
a
v
ar
iab
le
th
at
h
as
d
ata
o
n
co
m
p
o
n
en
t
s
tr
ess
es
an
d
is
s
tr
aig
h
t
f
o
r
w
ar
d
l
y
es
ti
m
ated
r
ath
er
th
a
n
as
s
ess
ed
.
T
h
e
p
ar
am
eter
th
at
h
as
t
h
ese
p
o
in
ts
o
f
in
ter
es
t
alo
n
g
s
id
e
d
ata
o
n
o
u
tp
u
t
lo
ad
co
n
d
itio
n
s
is
th
e
to
r
q
u
e
-
d
eliv
er
i
n
g
,
o
r
q
-
ax
is
,
co
m
p
o
n
e
n
t
o
f
t
h
e
o
u
tp
u
t
c
u
r
r
en
t
th
at
s
p
ea
k
s
to
th
e
d
y
n
a
m
i
c
c
u
r
r
en
t
o
f
th
e
m
o
to
r
.
I
n
an
y
V
FD,
th
e
o
u
tp
u
t
cu
r
r
en
t
i
s
s
tr
aig
h
t
f
o
r
w
ar
d
l
y
a
n
d
co
n
s
is
ten
tl
y
esti
m
ated
f
o
r
c
o
n
tr
o
l
an
d
a
s
s
u
r
an
ce
p
u
r
p
o
s
es
.
T
h
e
q
-
ax
i
s
p
ar
t
i
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
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8
8
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&
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g
o
tten
f
r
o
m
t
h
e
o
u
tp
u
t
cu
r
r
en
t
o
n
a
p
er
s
is
te
n
t
p
r
e
m
is
e
an
d
o
f
f
er
s
a
co
n
tr
o
lled
r
ea
ctio
n
t
o
an
e
x
p
an
s
i
o
n
i
n
s
tack
a
n
d
,
h
en
ce
f
o
r
th
,
an
e
x
p
an
s
io
n
in
s
tr
e
s
s
es
i
n
th
e
co
m
p
o
n
en
t
s
o
f
a
VFD,
p
ar
ticu
lar
l
y
w
h
e
n
it
is
p
o
w
er
ed
f
r
o
m
a
s
in
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
.
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h
er
e
ar
e
t
w
o
p
ar
ts
o
f
t
h
is
c
u
r
r
en
t:
1
)
th
e
a
v
er
ag
e
e
s
ti
m
atio
n
o
f
q
-
ax
i
s
c
u
r
r
en
t
(I
Q
-
A
VG
)
an
d
2
)
t
h
e
p
ea
k
-
to
-
pe
ak
r
ip
p
le
esti
m
atio
n
o
f
q
-
a
x
is
c
u
r
r
en
t (
I
Q
-
R
I
P
P
L
E
)
.
T
h
e
av
er
ag
e
esti
m
atio
n
o
f
t
h
e
q
-
ax
is
cu
r
r
e
n
t
m
i
g
h
t
b
e
u
tili
ze
d
f
o
r
co
n
s
tr
ain
i
n
g
th
e
o
u
tp
u
t
p
o
w
er
o
f
th
e
VF
D.
T
h
is
w
ill
r
est
r
ict
th
e
w
ei
g
h
ts
o
n
th
e
i
n
p
u
t
d
io
d
es
an
d
t
h
e
w
a
r
m
s
tr
e
s
s
es
in
t
h
e
i
n
p
u
t
ter
m
i
n
al
s
q
u
ar
es,
p
ar
ticu
lar
l
y
i
n
lo
w
-
p
o
w
er
V
FDs
.
T
h
e
p
ea
k
-
to
-
p
ea
k
q
-
a
x
is
r
ip
p
le
-
c
u
r
r
en
t
es
tee
m
is
u
tili
ze
d
t
o
r
estra
in
t
h
e
r
ip
p
le
cu
r
r
en
t
t
h
r
o
u
g
h
t
h
e
d
c
b
u
s
ca
p
ac
ito
r
s
.
T
h
is
d
o
u
b
le
p
r
o
n
g
ed
ap
p
r
o
ac
h
h
elp
s
i
n
e
n
h
a
n
ci
n
g
a
g
i
v
en
VF
D
r
ati
n
g
f
o
r
u
s
e
w
it
h
a
s
i
n
g
le
-
p
h
ase
ac
s
o
u
r
ce
.
T
h
e
f
lo
w
c
h
ar
t
f
o
r
th
e
p
r
o
p
o
s
ed
M
-
Q
A
C
i
s
ap
p
ea
r
ed
in
F
ig
u
r
e
2
.
T
h
e
co
n
tr
o
l
ca
lcu
latio
n
h
as
t
w
o
p
i
co
n
tr
o
ller
s
.
T
h
e
m
a
in
co
n
tr
o
ller
d
ir
ec
ts
th
e
m
o
s
t
ex
tr
e
m
e
o
u
tp
u
t
q
-
ax
i
s
a
v
er
ag
e
c
u
r
r
en
t
(
I
Q
-
A
VG
)
,
w
h
ic
h
r
elies
u
p
o
n
th
e
d
r
iv
e
s
ize
a
n
d
its
v
o
ltag
e
r
atin
g
.
T
h
e
s
ec
o
n
d
co
n
tr
o
ller
d
ir
ec
ts
th
e
q
-
ax
is
r
ip
p
le
-
cu
r
r
e
n
t
(
I
Q
-
R
I
P
P
L
E
)
ad
eq
u
ac
y
.
T
h
e
t
w
o
co
n
tr
o
ller
s
w
o
r
k
au
to
n
o
m
o
u
s
l
y
,
y
e
t
w
h
en
all
is
s
aid
in
d
o
n
e,
t
h
e
q
-
a
x
is
a
v
er
ag
e
c
u
r
r
en
t
co
n
tr
o
ller
h
as
h
ig
h
er
n
ee
d
.
C
o
n
tin
g
e
n
t
u
p
o
n
th
e
r
elativ
e
r
atin
g
o
f
t
h
e
i
n
s
is
te
n
t
p
ea
k
d
i
o
d
e
cu
r
r
en
t
a
n
d
t
h
e
r
ip
p
le
-
cu
r
r
en
t
li
m
it
o
f
t
h
e
d
c
b
u
s
ca
p
ac
ito
r
s
,
a
h
ig
h
er
n
ee
d
ca
n
b
e
attr
ib
u
ted
to
eith
er
th
e
q
-
ax
is
n
o
r
m
al
cu
r
r
en
t
co
n
tr
o
ller
o
r
th
e
q
-
a
x
i
s
r
ip
p
le
-
cu
r
r
en
t
co
n
tr
o
ller
b
y
m
o
d
i
f
y
i
n
g
t
h
e
ac
ti
v
atio
n
a
n
d
d
ir
ec
tio
n
lev
els
f
o
r
ei
th
er
co
n
tr
o
ller
.
Fig
u
r
e
2
.
P
r
o
p
o
s
ed
M
-
QAC b
lo
ck
d
iag
r
a
m
2
.
1
.
q
-
a
x
is
a
v
er
a
g
e
(I
Q
-
AVG
)
-
curr
ent
-
ba
s
ed
f
o
ld
-
ba
c
k
m
et
ho
d
I
n
t
h
e
q
-
a
x
i
s
a
v
er
ag
e
c
u
r
r
en
t
co
n
tr
o
ller
,
th
e
d
r
i
v
e
'
s
o
u
tp
u
t
q
-
ax
i
s
a
v
er
ag
e
c
u
r
r
en
t
is
co
n
t
r
asted
an
d
th
e
o
u
tp
u
t
a
v
er
ag
e
cu
r
r
en
t
ac
tu
atio
n
le
v
el
s
et
i
n
a
q
u
er
y
tab
le.
I
f
th
e
d
elib
er
ate
esteem
is
h
ig
h
er
th
a
n
th
e
ac
tu
atio
n
lev
el,
at
t
h
at
p
o
in
t
t
h
e
p
i
co
n
tr
o
l
ler
o
f
q
-
ax
i
s
av
er
a
g
e
cu
r
r
en
t
r
eg
u
lato
r
is
i
n
itiate
d
.
T
h
e
o
u
tp
u
t
o
f
t
h
e
p
i
co
n
tr
o
ller
is
n
e
g
ativ
e
a
n
d
d
ep
en
d
ab
ly
s
u
b
tr
ac
ts
f
r
o
m
th
e
f
r
eq
u
en
c
y
r
e
f
er
en
ce
to
cr
ea
te
a
lo
w
er
f
r
eq
u
e
n
c
y
ch
ar
g
e.
O
n
th
e
o
f
f
ch
a
n
ce
t
h
at
th
e
o
u
tp
u
t
q
-
a
x
is
c
u
r
r
en
t
i
s
r
eliab
l
y
h
ig
h
er
t
h
an
t
h
e
d
ir
ec
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ase
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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&
C
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m
p
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n
g
I
SS
N:
2088
-
8708
V
a
r
ia
b
le
fr
eq
u
en
cy
d
r
ive
o
p
timiz
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tio
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in
g
to
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r
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tr
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l a
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lf
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g
…
(
Mu
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807
2
.
2
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q
-
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x
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(I
Q
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RIPPLE
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curr
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s
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ld
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en
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a
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asted
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d
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h
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le
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le.
I
f
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itiated
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d
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ch
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ettles
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g
ati
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a
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d
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en
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ab
ly
s
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b
tr
ac
ts
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m
th
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e
n
c
y
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er
e
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ce
to
p
r
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d
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ce
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lo
w
er
f
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eq
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e
n
c
y
c
h
ar
g
e.
O
n
ce
th
e
r
ip
p
le
co
n
tr
o
ller
is
d
y
n
a
m
ic,
it
ca
n
b
e
in
ca
p
ac
ita
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j
u
s
t
if
t
h
e
q
-
a
x
is
c
u
r
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en
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lls
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th
th
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ea
cti
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T
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tees
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n
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estalli
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g
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o
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t
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r
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en
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y
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w
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a
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t
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u
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io
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r
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d
h
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ito
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cu
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t.
2
.
3
.
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o
rque
rippl
e
co
ntr
o
l
P
r
o
p
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s
ed
f
lo
w
c
h
ar
t
f
o
r
to
r
q
u
e
r
ip
p
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co
n
tr
o
l
is
d
ep
icted
in
F
ig
u
r
e
3
.
L
i
n
e
cu
r
r
e
n
t
r
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p
le
in
a
P
W
M
in
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ter
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ca
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s
ed
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t
h
e
m
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m
en
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y
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et
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h
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ted
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ce
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es.
Si
n
ce
th
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er
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to
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ee
s
th
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m
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to
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as
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ate
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illa
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ce
,
th
e
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r
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en
t
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to
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r
r
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d
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m
e
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t
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d
D
ar
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ef
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ed
as f
o
llo
w
s
:
[
]
(
1
)
(
2
)
(
)
(
3
)
Fig
u
r
e
3
.
P
r
o
p
o
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ed
T
R
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ch
ar
t
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ate
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r
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2
.
4
.
Rela
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n bet
w
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n I
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RC
T
h
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c
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t
co
n
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r
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is
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in
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ea
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Her
e,
I
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d
ir
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t
h
e
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ea
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n
o
f
t
h
e
q
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a
x
is
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cu
r
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en
t,
w
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is
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e
s
o
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n
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ig
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t
o
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d
ea
li
n
g
w
it
h
li
m
i
t
o
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e
d
c
b
u
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
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:
2
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8
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I
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cu
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n
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ea
ctiv
ated
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h
ese
lev
e
ls
ad
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itio
n
all
y
g
o
ab
o
u
t
as
a
h
y
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ter
esi
s
b
an
d
f
o
r
r
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le
cu
r
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en
t
co
n
tr
o
l
to
av
er
t
h
i
g
h
o
u
tp
u
t
f
r
eq
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e
n
c
y
s
w
i
n
g
s
.
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e,
th
e
to
r
q
u
e
r
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p
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ap
p
ar
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y
i
n
cr
ea
s
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l
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s
e
o
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p
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as
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th
e
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itiat
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el
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o
r
th
e
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s
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ip
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le
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e
co
n
tr
o
ller
is
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a
n
d
th
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o
u
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u
t
f
r
eq
u
e
n
c
y
i
s
d
ir
ec
ted
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ee
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u
p
th
e
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et
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le
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n
tr
o
ller
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th
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to
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n
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t
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r
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o
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r
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o
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al
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n
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ller
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as
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h
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e
d
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er
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e
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h
e
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r
ev
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s
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s
e
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at
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h
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t
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t
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t
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en
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b
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e
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n
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ly
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n
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ase
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n
e
v
en
t
h
r
ee
-
p
h
ase
ac
s
o
u
r
ce
,
w
h
ic
h
ca
n
ac
t
a
s
a
p
s
e
u
d
o
-
s
i
n
g
le
-
p
h
ase
s
o
u
r
ce
w
h
e
n
t
h
e
a
w
k
w
ar
d
n
e
s
s
i
n
cr
ea
s
e
s
.
T
h
e
p
ar
t
p
u
s
h
e
s
tal
k
ed
ab
o
u
t
in
t
h
is
ar
ticle
r
elate
to
t
h
e
lo
w
-
f
r
eq
u
en
c
y
(
1
0
0
o
r
1
2
0
Hz)
r
ip
p
le.
E
x
c
h
an
g
i
n
g
t
h
e
f
r
eq
u
en
c
y
r
ip
p
le
i
n
th
e
d
c
b
u
s
ca
p
ac
ito
r
is
th
e
s
a
m
e
as
t
h
e
r
ip
p
le
am
id
th
r
ee
-
p
h
ase
o
p
er
atio
n
f
o
r
a
g
iv
en
w
o
r
k
in
g
b
u
r
d
en
co
n
d
itio
n
.
A
d
d
itio
n
al
l
y
,
th
e
q
-
ax
is
cu
r
r
en
t
d
ata
i
s
g
o
tten
af
te
r
it
is
g
o
n
e
t
h
r
o
u
g
h
a
co
m
p
u
te
r
ized
ch
an
n
el
th
at
r
ej
ec
ts
th
e
ex
c
h
a
n
g
in
g
f
r
eq
u
e
n
c
y
co
m
p
o
n
e
n
ts
o
f
t
h
e
q
-
ax
i
s
cu
r
r
en
t.
I
n
th
is
m
a
n
n
er
,
t
h
e
i
m
p
ac
t
o
f
ex
c
h
a
n
g
i
n
g
f
r
eq
u
en
c
y
o
n
q
-
a
x
is
cu
r
r
en
t
r
i
p
p
le
is
ir
r
elev
a
n
t.
Fo
r
a
tr
a
n
s
i
t
io
n
d
eb
ilit
ati
n
g
ac
ti
v
it
y
o
r
f
o
r
an
o
p
er
atio
n
ab
o
v
e
b
ase
s
p
ee
d
,
th
e
to
r
q
u
e
is
d
i
m
i
n
is
h
ed
to
k
ee
p
t
h
e
p
o
w
er
co
n
s
is
ten
t.
A
s
t
h
e
to
r
q
u
e
d
esce
n
d
s
,
th
e
w
ei
g
h
t
o
n
t
h
e
d
r
iv
e
co
m
p
o
n
en
t
s
is
d
i
m
i
n
is
h
e
d
n
o
r
m
a
ll
y
.
2
.
5
.
ST
P
-
P
SO
f
ra
m
e
w
o
rk
P
SO
is
in
s
tated
w
it
h
a
g
at
h
er
i
n
g
o
f
ar
b
itra
r
y
p
ar
ticles
(
ar
r
an
g
e
m
e
n
t
s
)
an
d
af
ter
th
at
s
ca
n
s
f
o
r
o
p
ti
m
a
b
y
r
e
f
r
esh
in
g
g
e
n
er
atio
n
s
.
I
n
ea
ch
e
m
p
h
asi
s
,
ev
er
y
p
ar
ticle
is
r
ef
r
esh
ed
b
y
f
o
llo
w
in
g
t
wo
"
b
est"
q
u
alities
.
T
h
e
f
ir
s
t
is
th
e
b
est
ar
r
an
g
e
m
en
t
(
w
ell
n
es
s
)
it
h
as
ac
co
m
p
l
is
h
ed
u
p
u
n
t
il
n
o
w
.
(
T
h
e
w
ell
n
es
s
estee
m
i
s
lik
e
w
i
s
e
p
u
t
a
w
a
y
.
)
T
h
is
estee
m
is
ca
lled
.
A
n
o
t
h
er
"
b
est"
es
tee
m
t
h
at
is
f
o
llo
w
ed
b
y
t
h
e
p
ar
ticle
s
w
ar
m
o
p
tim
izer
is
t
h
e
b
es
t
estee
m
,
ac
q
u
ir
ed
s
o
f
ar
b
y
an
y
p
a
r
ticle
in
th
e
p
o
p
u
lat
io
n
.
T
h
i
s
b
est
es
tee
m
is
a
w
o
r
ld
w
id
e
b
est
an
d
ca
lled
.
A
t
t
h
e
p
o
in
t
w
h
e
n
a
p
ar
ticle
r
em
o
v
e
s
a
p
o
r
tio
n
o
f
th
e
p
o
p
u
latio
n
as
its
to
p
o
lo
g
ical
n
eig
h
b
o
u
r
s
,
t
h
e
b
est
estee
m
is
a
n
ea
r
b
y
b
est
an
d
is
ca
lled
lb
est.
Af
ter
f
i
n
d
in
g
t
h
e
t
w
o
b
est
estee
m
s
,
th
e
p
ar
ticle
r
ef
r
es
h
e
s
its
v
elo
cit
y
a
n
d
p
o
s
itio
n
s
w
it
h
f
o
llo
w
in
g
eq
u
at
io
n
.
(
)
(
)
(
)
(
)
(
4
)
(
5
)
is
t
h
e
v
elo
cit
y
o
f
th
e
p
ar
ticle,
d
en
o
tes
t
h
e
c
u
r
r
en
t
p
ar
ticl
e
(
s
o
lu
tio
n
)
.
an
d
ar
e
d
ef
in
ed
as
s
tated
b
ef
o
r
e.
(
)
is
a
r
an
d
o
m
n
u
m
b
er
b
et
w
ee
n
(
)
.
a
n
d
ar
e
lear
n
in
g
f
ac
to
r
s
.
u
s
u
a
l
l
y
.
T
h
e
p
s
eu
d
o
co
d
e
o
f
th
e
p
r
o
ce
d
u
r
e
is
as f
o
llo
w
s
:
A
l
g
o
r
i
t
h
m:
P
S
O
1:
F
o
r
e
v
e
r
y
p
a
r
t
i
c
le
2:
P
a
r
t
i
c
l
e
i
n
i
t
i
a
l
i
z
a
t
i
o
n
3:
EN
D
4:
Do
5:
F
o
r
e
a
c
h
p
a
r
t
i
c
l
e
6:
C
o
mp
u
t
e
t
h
e
v
a
l
u
e
o
f
f
i
t
n
e
ss
7:
I
f
t
h
e
v
a
l
u
e
o
f
f
i
t
n
e
ss
i
s s
u
p
e
r
i
o
r
t
h
a
n
t
h
e
b
e
st
v
a
l
u
e
o
f
f
i
t
n
e
ss
i
n
h
i
s
t
o
r
y
8:
T
h
e
n
t
h
e
c
u
r
r
e
n
t
v
a
l
u
e
s w
i
l
l
b
e
se
t
a
s t
h
e
n
e
w
9:
En
d
10:
N
o
w
,
se
l
e
c
t
t
h
e
b
e
st
f
i
t
n
e
ss p
a
r
t
i
c
l
e
o
f
a
l
l
t
h
e
a
v
a
i
l
a
b
l
e
p
a
r
t
i
c
l
e
s a
n
d
d
e
n
o
t
e
i
t
w
i
t
h
11:
F
o
r
e
v
e
r
y
p
a
r
t
i
c
l
e
12:
C
o
mp
u
t
e
t
h
e
v
e
l
o
c
i
t
y
o
f
a
p
a
r
t
i
c
l
e
b
y
u
t
i
l
i
z
i
n
g
E
q
u
a
t
i
o
n
(
4
)
13:
F
i
n
a
l
l
y
u
p
d
a
t
e
t
h
e
p
o
si
t
i
o
n
o
f
p
a
r
t
i
c
l
e
b
y
u
si
n
g
E
q
u
a
t
i
o
n
(
5
)
14:
E
n
d
W
h
ile
m
o
s
t
ex
tr
e
m
e
c
y
cle
s
o
r
least
er
r
o
r
cr
iter
ia
a
r
en
’
t
ac
h
i
ev
ed
,
p
ar
ticles'
s
p
ee
d
s
o
n
ea
c
h
m
ea
s
u
r
e
m
e
n
t
ar
e
clip
p
ed
to
a
g
r
ea
test
v
elo
city
V
m
a
x
.
I
f
th
e
to
tal
o
f
in
cr
ea
s
in
g
s
p
ee
d
s
w
o
u
ld
m
a
k
e
th
e
v
elo
cit
y
o
n
th
a
t
m
ea
s
u
r
e
m
e
n
t
s
u
r
p
ass
V
m
a
x
,
w
h
ic
h
i
s
a
p
ar
a
m
eter
in
d
icate
d
b
y
th
e
clie
n
t.
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t
th
at
p
o
in
t
th
e
v
elo
cit
y
o
n
th
a
t
m
ea
s
u
r
e
m
e
n
t i
s
r
estricte
d
to
Vm
ax
.
Evaluation Warning : The document was created with Spire.PDF for Python.
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N:
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809
T
h
er
e
ar
e
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elativ
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y
f
e
w
p
ar
a
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s
h
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p
ar
am
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d
t
h
eir
co
m
m
o
n
estee
m
s
.
a)
T
h
e
r
an
g
e
o
f
th
e
p
ar
ticles
i
s
a
b
o
u
t
2
0
-
4
0
.
I
d
ea
lly
,
m
o
s
t
o
f
t
h
e
is
s
u
e
s
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ill
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e
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y
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u
m
o
f
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0
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ar
ticles.
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n
tr
y
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p
to
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0
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r
2
0
0
p
ar
ticles d
ep
en
d
in
g
o
n
t
h
eir
ap
p
licatio
n
s
.
b)
P
ar
ticles d
im
e
n
s
io
n
: I
t is i
n
f
l
u
en
ce
d
b
y
t
h
e
i
s
s
u
e
to
b
e
o
p
tim
ized
.
c)
P
ar
ticles
r
an
g
e:
T
h
is
i
s
al
s
o
i
n
f
l
u
en
ce
d
b
y
t
h
e
p
r
o
b
le
m
th
a
t
m
u
s
t
b
e
o
p
ti
m
ized
,
d
if
f
er
en
t
r
an
g
e
s
ca
n
b
e
s
et
f
o
r
th
e
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ar
io
u
s
p
ar
ticle
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i
m
en
s
io
n
s
.
d)
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m
a
x
:
it’s
a
m
ax
i
m
u
m
d
e
v
iat
io
n
th
at
a
p
ar
ticle
ca
n
tak
e
d
u
r
in
g
an
iter
atio
n
.
Gen
er
all
y
,
t
h
e
r
an
g
e
o
f
V
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a
x
ca
n
b
e
s
et
as
f
o
r
ex
a
m
p
le,
th
e
p
ar
ticle
(
x
1
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x
2
,
x
3
)
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elo
n
g
s
[
-
1
0
,
1
0
]
,
th
en
V
m
ax
=
2
0
.
e)
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ea
r
n
i
n
g
f
ac
to
r
s
:
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c2
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p
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m
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ad
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as
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p
ar
t
o
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s
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ap
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s
.
Ho
w
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a
s
a
r
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le
c1
eq
u
iv
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n
t
s
to
c2
an
d
r
an
g
e
s
f
r
o
m
[
0
,
4
]
.
f)
T
h
e
s
to
p
co
n
d
itio
n
:
t
h
e
m
ax
i
m
u
m
n
u
m
b
er
o
f
iter
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n
s
t
h
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P
SO
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ec
u
te
an
d
t
h
e
m
i
n
i
m
u
m
er
r
o
r
r
eq
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ir
e
m
en
t.
Fo
r
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x
a
m
p
le,
f
o
r
A
N
N
tr
ai
n
i
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g
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w
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n
s
et
t
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e
m
i
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i
m
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r
o
r
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m
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is
o
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s
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if
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atter
n
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T
h
e
m
a
x
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m
u
m
n
u
m
b
er
o
f
iter
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n
s
is
s
et
to
2
0
0
0
.
T
h
is
s
to
p
co
n
d
itio
n
d
ep
en
d
s
o
n
th
e
p
r
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le
m
to
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e.
g)
T
h
e
m
o
s
t
e
x
tr
e
m
e
n
u
m
b
er
o
f
iter
atio
n
s
,
th
e
P
SO
ex
ec
u
te
an
d
th
e
b
ase
er
r
o
r
n
ec
ess
it
y
.
Fo
r
in
s
ta
n
ce
,
f
o
r
A
NN
p
r
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ar
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g
i
n
p
ast
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ctio
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e
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n
s
et
t
h
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ase
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n
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ess
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n
e
m
is
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o
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ed
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a
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h
e
m
o
s
t e
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e
m
e
n
u
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cles i
s
s
et
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0
.
T
h
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to
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co
n
d
itio
n
r
elies u
p
o
n
t
h
e
i
s
s
u
e
to
b
e.
3.
RE
SU
L
T
S
A
ND
AN
AL
Y
SI
S
I
n
t
h
is
s
ec
tio
n
,
s
i
m
u
latio
n
t
e
s
ts
w
er
e
co
n
d
u
cted
o
n
a
f
r
icti
o
n
al
lo
ad
o
p
er
ated
f
r
o
m
a
1
0
-
h
p
,
2
3
0
-
v
,
an
d
t
h
r
ee
-
p
h
a
s
e
VFD
p
o
w
er
e
d
f
r
o
m
a
s
in
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
.
Field
d
ata
w
er
e
co
llecte
d
f
r
o
m
a
p
r
ac
tical
p
u
m
p
i
n
g
ap
p
licatio
n
t
h
at
u
s
e
d
a
th
r
ee
-
p
h
ase
2
3
0
v
,
0
.
7
5
-
h
p
VFD
p
o
w
er
ed
f
r
o
m
a
s
i
n
g
l
e
-
p
h
a
s
e
ac
s
u
p
p
l
y
.
T
h
e
d
etails
o
f
th
e
s
e
t
u
p
f
o
r
b
o
th
ca
s
es
ar
e
g
iv
e
n
i
n
T
ab
l
e
1
.
W
e
co
m
p
ar
ed
o
u
r
p
r
o
p
o
s
e
d
s
ch
e
m
e
s
w
it
h
t
h
e
M
-
Q
AC
[
1
6
]
an
d
class
ical
d
c
-
bus
-
v
o
lta
g
e
r
ip
p
le
-
b
ased
f
o
ld
-
b
ac
k
m
et
h
o
d
[
1
5
]
.
T
h
e
r
esu
lts
o
b
tain
ed
w
i
th
a
p
er
io
d
o
f
5
0
s
b
y
tr
ad
itio
n
al
d
c
-
b
u
s
v
o
ltag
e
r
ip
p
le
-
b
ased
m
et
h
o
d
is
d
e
m
o
n
s
tr
ated
in
F
ig
u
r
e
4
,
t
h
e
r
esu
lts
in
cl
u
d
e
th
e
d
c
-
b
u
s
v
o
ltag
e,
o
u
tp
u
t
p
o
w
er
,
o
u
tp
u
t
f
r
eq
u
e
n
c
y
an
d
th
e
in
p
u
t
cu
r
r
en
t.
T
h
e
ti
m
e
o
n
x
-
a
x
is
i
n
clu
d
e
s
th
r
ee
s
lo
ts
n
a
m
es a
s
f
ir
s
t
s
tar
t
-
u
p
p
er
io
d
,
s
ec
o
n
d
,
lo
a
d
in
g
ti
m
e
an
d
f
i
n
all
y
f
o
ld
-
b
ac
k
p
er
io
d
.
T
ab
le
1
.
Sim
u
latio
n
P
ar
am
e
ter
Valu
es
o
f
Mo
to
r
an
d
VFD
Ut
ilized
in
E
x
p
er
i
m
en
t
s
R
a
t
e
d
P
o
w
e
r
R
a
t
e
d
C
u
r
r
e
n
t
R
a
t
e
d
V
o
l
t
a
g
e
R
a
t
e
d
S
p
e
e
d
O
n
e
-
P
h
a
se
R
a
t
i
n
g
P
u
mp
i
n
g
A
p
p
l
i
c
a
t
i
o
n
T
h
r
e
e
-
P
h
a
se
M
o
t
o
r
0
.
5
h
p
2
.
1
A
2
0
0
-
2
3
0
V
a
c
3
.
4
5
0
r
/
mi
n
N
/
A
T
h
r
e
e
-
P
h
a
se
V
F
D
0
.
7
5
h
p
3
.
5
A
(
o
u
t
)
2
0
0
-
2
4
0
V
a
c
1
.
5
-
4
0
0
H
z
0
.
3
3
h
p
F
r
a
c
t
i
o
n
a
l
L
o
a
d
T
h
r
e
e
-
P
h
a
se
M
o
t
o
r
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.
6
h
p
1
9
A
2
0
0
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2
3
0
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a
c
1
.
7
6
5
r
/
mi
n
N
/
A
T
h
r
e
e
-
P
h
a
se
V
F
D
1
0
h
p
3
0
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(
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u
t
)
2
0
0
-
2
4
0
V
a
c
1
.
5
-
4
0
0
H
z
4
.
3
h
p
Du
r
in
g
ti
m
e
i
n
ter
v
al
0
s
to
2
0
s
,
t
h
e
d
r
iv
e
is
lo
ad
ed
u
p
to
a
v
al
u
e
o
f
its
r
ated
s
i
n
g
le
-
p
h
a
s
e
r
ati
n
g
.
f
ter
th
a
t
it
’
s
s
l
ig
h
tl
y
h
ig
h
er
t
h
an
i
ts
r
ated
s
i
n
g
le
-
p
h
ase
r
at
in
g
.
As
t
h
e
o
u
tp
u
t
p
o
w
er
en
h
an
ce
s
,
th
e
o
u
tp
u
t
f
r
eq
u
en
c
y
o
b
tai
n
s
6
0
Hz,
w
h
i
ch
i
s
a
m
a
x
i
m
u
m
le
v
el
o
f
f
r
e
q
u
en
c
y
r
an
g
e,
a
n
d
th
er
e
is
a
n
en
h
a
n
ce
m
en
t
i
n
t
h
e
in
p
u
t
cu
r
r
en
t
t
h
en
th
e
d
c
-
bus
-
v
o
lta
g
e
r
ip
p
le
v
a
lu
e
o
v
er
h
ea
d
s
it’s
s
et
v
alu
e,
th
is
w
i
ll
s
w
i
tch
t
h
e
f
u
n
ct
io
n
o
f
f
r
eq
u
en
c
y
f
o
ld
-
b
ac
k
,
an
d
r
es
u
lts
in
m
it
ig
at
io
n
o
f
th
e
o
u
tp
u
t
f
r
eq
u
en
c
y
a
f
ter
3
0
s
as
d
e
p
icted
in
F
i
g
u
r
e
4
.
Sti
ll,
th
e
er
r
o
r
v
alu
e
i
s
s
m
alle
r
b
et
w
ee
n
t
h
e
s
p
ec
i
f
ied
an
d
ac
tu
al
r
ip
p
le
v
o
ltag
e,
an
d
s
o
m
itig
atio
n
r
ate
o
f
th
e
f
r
eq
u
en
c
y
is
g
r
ad
u
al.
T
h
e
ex
am
p
le
s
h
o
w
n
h
er
e
s
u
g
g
es
ts
th
a
t
th
er
e
is
n
o
s
u
f
f
icie
n
t
in
f
o
r
m
atio
n
ab
o
u
t
th
e
lo
ad
co
n
d
itio
n
s
o
f
t
h
e
o
u
tp
u
t
i
n
t
h
e
d
c
b
u
s
-
v
o
lta
g
e
r
ip
p
le
m
et
h
o
d
.
Hen
ce
,
th
i
s
m
et
h
o
d
is
n
o
t
s
u
itab
le
f
o
r
li
m
iti
n
g
th
e
in
p
u
t
p
ea
k
c
u
r
r
en
t d
u
r
i
n
g
t
h
e
f
r
eq
u
e
n
c
y
f
o
ld
-
b
ac
k
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
2
,
A
p
r
il
201
9
:
8
0
2
-
8
1
4
810
F
ig
u
r
e
4
.
T
est r
esu
lts
f
o
r
th
e
d
c
b
u
s
v
o
lta
g
e
r
ip
p
le
-
b
ased
f
r
e
q
u
en
c
y
f
o
ld
-
b
ac
k
p
r
o
ce
s
s
[
1
5
]
.
T
im
e
s
ca
le
5
s
ec
/d
iv
Fig
u
r
e
5
d
ep
ict
th
at
t
h
e
M
-
QAC
b
a
s
ed
f
r
eq
u
en
c
y
f
o
ld
-
b
ac
k
s
ch
e
m
e
li
k
e
t
h
e
r
es
u
lt
s
p
r
o
v
id
ed
in
F
ig
u
r
e
4
.
Du
r
i
n
g
ti
m
e
in
ter
v
a
l
0
s
to
1
7
.
4
5
s
,
th
e
d
r
iv
e
lo
ad
ed
u
p
to
a
v
alu
e
o
f
i
ts
r
ated
s
in
g
le
-
p
h
a
s
e
r
ati
n
g
.
Du
r
in
g
i
n
ter
v
al
1
7
.
4
5
s
to
2
1
.
7
7
s
,
th
e
lo
ad
g
et
s
i
n
cr
ea
s
ed
w
h
ich
lead
to
th
e
ca
p
ac
ito
r
-
r
ip
p
le
cu
r
r
en
t
i
n
cr
e
m
e
n
t
an
d
th
er
e
b
y
e
n
h
an
ce
s
t
h
e
q
-
ax
is
r
ip
p
le
cu
r
r
e
n
t.
Si
n
ce
t
h
e
ev
al
u
ated
v
al
u
e
o
f
r
ip
p
le
-
c
u
r
r
en
t
is
b
e
y
o
n
d
th
e
v
alu
e
o
f
s
et
p
o
in
t,
th
e
n
th
e
a
ctiv
atio
n
o
f
p
i
co
n
tr
o
ller
f
o
r
th
e
q
-
a
x
is
c
u
r
r
en
t
-
r
ip
p
le
r
eg
u
lato
r
w
ill
b
e
d
o
n
e,
th
is
m
iti
g
ate
s
th
e
o
u
tp
u
t
f
r
eq
u
en
c
y
an
d
r
eg
u
lates
t
h
e
o
u
tp
u
t
p
o
w
er
as
s
ee
n
f
r
o
m
t
i
m
e
i
n
t
er
v
al
2
2
s
.
L
ik
e
t
h
e
p
r
ev
io
u
s
ca
s
e,
w
h
en
th
e
o
u
tp
u
t
p
o
w
er
is
in
cr
ea
s
ed
to
th
e
v
alu
e
at
t
h
e
s
tar
t
o
f
,
th
e
q
-
a
x
is
av
er
a
g
e
-
c
u
r
r
en
t
r
eg
u
lato
r
d
etec
ts
t
h
e
i
n
cr
ea
s
e
in
cu
r
r
e
n
t
an
d
ac
t
s
to
r
ed
u
ce
t
h
e
o
u
tp
u
t
f
r
eq
u
e
n
c
y
.
T
h
e
r
eg
u
lato
r
s
atu
r
ates
to
a
m
i
n
i
m
u
m
v
alu
e
s
in
ce
t
h
e
er
r
o
r
is
lar
g
e.
Ou
tp
u
t
p
o
w
er
,
in
p
u
t
p
ea
k
cu
r
r
en
t,
a
n
d
d
c
-
b
u
s
-
r
ip
p
le
v
o
ltag
e
ar
e
w
it
h
i
n
s
p
ec
i
f
ied
v
al
u
es
at
t
h
e
m
i
n
i
m
u
m
f
r
eq
u
en
c
y
.
Fi
g
u
r
e
4
an
d
5
s
i
m
u
latio
n
s
h
a
v
e
d
o
n
e
w
it
h
t
h
e
v
al
u
es
o
f
d
c
B
u
s
Vo
lta
g
e
(
5
0
V/d
iv
)
I
n
p
u
t
C
u
r
r
e
n
t (
1
0
0
A
/d
i
v
)
O
u
tp
u
t
Fre
q
u
en
c
y
(
0
.
5
V/d
iv
)
1
0
V
=
6
0
Hz
an
d
O
u
tp
u
t
P
o
w
er
(
1
V/d
iv
)
1
V
=
7
.
5
k
W
Fig
u
r
e
5
.
T
est r
esu
lts
f
o
r
th
e
q
-
Ax
is
C
u
r
r
en
t b
ased
f
r
eq
u
e
n
c
y
f
o
ld
-
b
ac
k
p
r
o
ce
s
s
[
1
6
]
.
T
im
e
s
ca
le
5
s
ec
/d
iv
3
.
1
.
F
ield
t
est
da
t
a
(
pu
m
p lo
a
d)
Field
test
d
ata
w
er
e
co
llected
f
o
r
a
p
u
m
p
ap
p
licatio
n
d
r
i
v
en
b
y
a
0
.
7
5
-
h
p
,
th
r
ee
-
p
h
ase
V
F
D
p
o
w
er
ed
f
r
o
m
a
s
in
g
le
-
p
h
a
s
e
ac
s
o
u
r
ce
.
T
h
e
s
in
g
le
-
p
h
ase
r
atin
g
o
f
th
e
VFD
is
0
.
3
3
h
p
.
T
h
e
r
e
s
u
lt
f
o
r
th
e
d
c
-
b
u
s
-
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2088
-
8708
V
a
r
ia
b
le
fr
eq
u
en
cy
d
r
ive
o
p
timiz
a
tio
n
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g
to
r
q
u
e
r
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le
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o
n
tr
o
l a
n
d
s
e
lf
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tu
n
in
g
…
(
Mu
d
u
n
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i R
ek
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811
v
o
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le
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ased
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r
eq
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en
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y
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eth
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d
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o
l
d
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b
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e
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e
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n
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g
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r
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s
6
an
d
8
,
r
esp
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y
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T
h
e
test
r
e
s
u
lt
s
ar
e
g
i
v
en
i
n
T
ab
le
2
.
Fig
u
r
e
6
.
T
h
e
tr
ad
itio
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al
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et
h
o
d
th
at
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elies o
n
l
y
o
n
m
ai
n
tai
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4
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(
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.
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ased
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Fig
u
r
e
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.
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est r
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[
1
6
]
(
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A
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ates
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.
T
h
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tp
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t
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