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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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IJ
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Vo
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6
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2
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A
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s
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9
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f
o
r
th
e
d
ete
r
io
r
atio
n
o
f
t
h
e
in
s
u
latio
n
.
E
lectr
ical
s
tr
es
s
es
,
m
ain
l
y
r
elate
d
to
th
e
m
a
ch
in
e
ter
m
i
n
al
v
o
ltag
e
s
,
als
o
ca
u
s
e
in
s
u
latio
n
d
eg
r
ad
atio
n
.
Am
o
n
g
th
e
v
ar
i
o
u
s
elec
tr
ical
s
tr
es
s
es,
p
ar
tial
d
is
ch
ar
g
e
s
(
P
Ds)
i
n
t
h
e
w
i
n
d
in
g
s
an
d
tr
a
n
s
ie
n
t
v
o
ltag
e
s
at
th
e
m
ac
h
in
e
ter
m
i
n
als ar
e
co
n
s
id
er
ed
as th
e
m
aj
o
r
co
n
tr
ib
u
to
r
s
[
11
].
W
ith
th
e
i
n
cr
ea
s
ed
e
m
p
h
asi
s
o
n
en
er
g
y
co
n
s
er
v
atio
n
an
d
h
ig
h
p
er
f
o
r
m
a
n
ce
m
o
to
r
co
n
tr
o
l,
th
e
u
s
e
o
f
P
u
ls
e
W
id
th
-
Mo
d
u
lated
Vo
ltag
e
So
u
r
ce
I
n
v
er
ter
s
(
P
W
M
-
VSI
s
)
h
as
g
r
o
w
n
at
an
e
x
p
o
n
e
n
tial
r
ate.
T
h
is
h
a
s
m
ad
e
th
e
s
tato
r
w
i
n
d
i
n
g
s
o
p
en
to
h
ig
h
er
elec
tr
ical
s
tr
es
s
es.
Hig
h
s
p
ee
d
P
W
M
o
p
e
r
atio
n
s
in
tr
o
d
u
ce
h
i
g
h
r
at
e
o
f
r
is
e
o
f
tr
an
s
ie
n
t
v
o
ltag
e
s
at
th
e
m
ac
h
in
e
ter
m
in
al
s
.
C
u
r
r
e
n
t
i
n
t
h
e
s
tato
r
w
in
d
i
n
g
p
r
o
d
u
ce
s
a
f
o
r
ce
o
n
th
e
co
ils
th
at
is
p
r
o
p
o
r
tio
n
al
to
th
e
s
q
u
ar
e
o
f
th
e
cu
r
r
en
t.
T
h
is
f
o
r
ce
is
at
its
m
a
x
i
m
u
m
u
n
d
er
tr
an
s
ie
n
t
o
v
er
lo
ad
s
,
ca
u
s
i
n
g
th
e
co
ils
to
v
ib
r
ate
at
t
w
ice
t
h
e
s
y
n
c
h
r
o
n
o
u
s
f
r
eq
u
en
c
y
w
i
th
m
o
v
e
m
e
n
t
i
n
b
o
t
h
t
h
e
r
ad
ial
an
d
t
h
e
tan
g
e
n
tia
l
d
ir
ec
tio
n
.
T
h
is
m
o
v
e
m
e
n
t
w
ea
k
e
n
s
t
h
e
i
n
teg
r
it
y
o
f
t
h
e
i
n
s
u
latio
n
s
y
s
te
m
.
C
o
n
ta
m
in
a
tio
n
s
d
u
e
to
f
o
r
eig
n
m
ater
ia
ls
ca
n
lead
to
a
d
v
er
s
e
ef
f
ec
ts
o
n
th
e
s
tato
r
w
i
n
d
in
g
in
s
u
latio
n
[
1
]
,
[
10
]
,
[
12
].
Stato
r
w
i
n
d
in
g
-
r
elate
d
f
ai
lu
r
es
ca
n
b
e
b
r
o
ad
ly
class
if
ied
in
to
th
e
f
o
llo
w
i
n
g
f
o
u
r
g
r
o
u
p
s
:
o
p
en
-
c
ir
cu
it
f
au
lts
,
t
u
r
n
-
to
-
tu
r
n
,
lin
e
-
to
-
gr
o
u
n
d
,
li
n
e
-
to
-
li
n
e,
an
d
s
in
g
le
o
r
m
u
lt
i
-
p
h
ase
w
i
n
d
i
n
g
.
Am
o
n
g
th
e
s
e
f
o
u
r
f
ai
lu
r
e
m
o
d
e
s
,
tu
r
n
-
to
-
t
u
r
n
f
a
u
lt
s
(
s
t
ato
r
tu
r
n
f
a
u
lts
)
h
a
v
e
b
ee
n
c
o
n
s
id
er
ed
as
t
h
e
m
o
s
t
c
h
alle
n
g
i
n
g
o
n
e
s
i
n
ce
t
h
e
o
th
er
t
y
p
es
o
f
f
ail
u
r
es
ar
e
u
s
u
all
y
t
h
e
co
n
s
eq
u
en
ce
s
o
f
tu
r
n
f
au
l
ts
.
I
t
ca
n
b
e
s
ee
n
t
h
at
a
m
o
n
g
t
h
e
f
a
u
lt
s
,
th
e
in
ter
t
u
r
n
f
a
u
lt
s
ar
e
t
h
e
m
o
s
t d
if
f
icu
lt
f
au
lt to
d
etec
t a
t
an
ea
r
l
y
s
tag
e
its
el
f
.
T
o
s
o
lv
e
t
h
e
d
i
f
f
ic
u
lt
y
i
n
d
etec
ti
n
g
tu
r
n
f
a
u
lt
s
,
s
e
v
er
a
l
m
e
th
o
d
s
h
av
e
b
ee
n
s
u
g
g
ested
[
1
3
-
20
]
.
B
ec
au
s
e
o
f
th
i
s
,
r
e
m
ar
k
ab
le
i
m
p
r
o
v
e
m
e
n
t
s
h
a
v
e
b
ee
n
ac
h
iev
ed
in
t
h
e
ar
ea
o
f
s
tato
r
tu
r
n
f
au
lt
d
etec
tio
n
.
Nev
er
th
e
less
,
t
h
e
q
u
esti
o
n
ab
o
u
t
th
e
d
elay
ti
m
e
b
et
w
ee
n
a
tu
r
n
f
a
u
lt a
n
d
o
th
er
s
ev
er
e
f
a
ilu
r
e
s
s
till
r
e
m
ai
n
s
to
b
e
an
s
w
er
ed
.
T
h
e
in
ter
n
al
a
s
y
m
m
etr
y
d
u
e
t
o
in
ter
tu
r
n
f
au
lt
w
ill
ca
u
s
e
t
h
e
c
ir
cu
latio
n
o
f
e
x
tr
e
m
el
y
h
i
g
h
cu
r
r
e
n
ts
in
t
h
e
p
o
r
tio
n
o
f
th
e
w
i
n
d
in
g
af
f
ec
ted
b
y
th
e
f
a
u
lt,
t
h
u
s
co
n
tr
ib
u
tin
g
to
t
h
e
d
eg
r
ad
atio
n
o
f
o
t
h
er
p
o
r
tio
n
s
o
f
th
e
w
i
n
d
in
g
s
.
T
h
e
lead
ti
m
e
b
et
w
ee
n
t
h
e
s
tar
t
o
f
t
h
e
f
au
l
t
an
d
th
e
co
m
p
lete
f
ai
lu
r
e
o
f
t
h
e
m
ac
h
in
e
d
ep
en
d
s
on
s
ev
er
al
f
ac
to
r
s
,
n
a
m
el
y
t
h
e
i
n
i
tial
n
u
m
b
er
o
f
s
h
o
r
ted
tu
r
n
s
,
w
i
n
d
i
n
g
co
n
f
i
g
u
r
atio
n
,
r
ated
p
o
w
er
,
r
ated
v
o
lta
g
e,
en
v
ir
o
n
m
e
n
tal
co
n
d
itio
n
etc
[
9
].
I
f
th
e
f
a
u
lt
ca
n
b
e
p
r
ed
icted
at
an
ea
r
ly
s
ta
g
e,
a
ca
tast
r
o
p
h
ic
ef
f
ec
t
ca
n
b
e
av
o
id
ed
,
th
e
m
a
ch
in
e
ca
n
b
e
p
r
o
tecte
d
as
w
ell
a
s
t
h
e
s
a
f
et
y
o
f
th
e
w
o
r
k
i
n
g
p
er
s
o
n
n
e
l
s
h
all
b
e
e
n
s
u
r
ed
.
I
n
t
h
e
ca
s
e
o
f
a
s
tato
r
t
u
r
n
f
a
u
lt,
a
lar
g
e
cir
cu
lati
n
g
cu
r
r
en
t
w
il
l
b
e
p
r
o
d
u
ce
d
,
lead
in
g
to
ex
c
ess
i
v
e
h
ea
t
g
e
n
er
atio
n
i
n
th
e
s
h
o
r
ted
tu
r
n
s
.
T
h
e
h
ea
t,
w
h
ich
is
p
r
o
p
o
r
tio
n
al
to
th
e
s
q
u
ar
e
o
f
t
h
e
cir
c
u
lati
n
g
cu
r
r
en
t,
ac
ce
ler
ates
th
e
s
ev
er
i
t
y
o
f
th
e
f
a
u
lt
to
a
d
estru
cti
v
e
lev
el
[
1
8
]
.
I
f
th
i
s
f
au
lt is
n
o
t d
etec
ted
at
th
e
ea
r
l
y
s
tag
e
it
w
i
ll b
e
p
r
o
p
ag
ated
an
d
w
ill lea
d
to
p
h
as
e
to
g
r
o
u
n
d
o
r
p
h
ase
-
to
-
p
h
ase
f
a
u
lt
w
h
ic
h
in
tu
r
n
m
a
y
lead
to
t
h
e
d
a
m
a
g
e
o
f
t
h
e
m
ac
h
in
e.
As
th
e
i
n
ter
tu
r
n
f
a
u
lt
is
o
n
e
o
f
t
h
e
m
aj
o
r
r
ea
s
o
n
s
f
o
r
th
e
m
ac
h
in
e
f
ail
u
r
e.
I
n
te
n
s
i
v
e
in
v
e
s
ti
g
atio
n
s
o
n
s
tato
r
tu
r
n
f
au
lts
r
ev
ea
led
t
h
at
th
e
f
a
u
lt
s
in
tr
o
d
u
ce
s
p
ec
if
ic
c
h
an
g
es
i
n
t
h
e
elec
tr
ic
p
r
o
p
er
ti
es
o
f
th
e
m
ac
h
in
e
s
.
T
h
is
h
a
s
c
r
ea
ted
a
g
r
ea
t
d
ea
l
o
f
s
co
p
e
to
d
ev
elo
p
m
et
h
o
d
s
f
o
r
th
e
d
etec
tio
n
o
f
a
tu
r
n
f
a
u
lt
[
13
]
,
[
15
]
,
[
1
9
]
.
I
n
th
e
p
r
ese
n
t
p
ap
er
,
a
P
W
M
in
v
er
ter
f
ed
I
n
d
u
ct
io
n
Mo
to
r
m
o
d
el
h
as
b
ee
n
p
r
o
p
o
s
ed
an
d
d
iag
n
o
s
ed
s
tato
r
in
ter
-
tu
r
n
f
a
u
lt
i
n
t
h
e
t
r
an
s
ie
n
t
co
n
d
itio
n
s
.
B
y
th
is
m
o
d
el,
m
an
y
r
esear
c
h
er
s
in
f
u
tu
r
e
m
a
y
d
ia
g
n
o
s
e
v
ar
io
u
s
I
M
f
a
u
lts
i
n
t
h
e
tr
an
s
i
en
t
co
n
d
itio
n
s
b
y
v
ar
io
u
s
ad
v
an
ce
d
Di
g
ital
Si
g
n
al
P
r
o
ce
s
s
i
n
g
T
ec
h
n
iq
u
es
s
u
ch
as FFT
an
d
w
a
v
elet
T
r
an
s
o
f
r
m
.
2.
M
AT
H
E
M
AT
I
CAL M
O
DE
L
L
I
N
G
O
F
H
E
AL
T
H
Y
AN
D
F
AULT
Y
CO
NDI
T
I
O
N
S
O
F
T
H
E
I
M
T
h
e
m
at
h
e
m
atica
l
m
o
d
elli
n
g
o
f
th
e
in
d
u
ctio
n
m
o
to
r
f
o
r
h
ea
lth
y
a
n
d
f
a
u
lt
y
m
o
to
r
h
as
b
ee
n
d
is
cu
s
s
ed
in
th
e
n
e
x
t sectio
n
s
tep
b
y
s
tep
.
2
.
1
.
M
o
dellin
g
o
f
hea
lt
hy
co
nd
it
i
o
n o
f
t
he
m
o
t
o
r
T
h
e
m
at
h
e
m
atica
l
m
o
d
elli
n
g
o
f
th
e
in
d
u
ctio
n
m
o
to
r
f
o
r
h
ea
lth
y
a
n
d
f
a
u
lt
y
m
o
to
r
h
as
b
ee
n
d
is
cu
s
s
ed
in
th
e
n
e
x
t sectio
n
s
tep
b
y
s
tep
.
T
h
e
v
o
ltag
e
eq
u
atio
n
s
i
n
m
ac
h
in
e
v
ar
iab
les
m
a
y
b
e
ex
p
r
ess
e
d
b
y
t
h
e
f
o
llo
w
i
n
g
eq
u
atio
n
s
1
an
d
2
:
a
b
c
s
s
a
b
c
s
a
b
c
s
V
r
i
(
1
)
a
b
c
r
r
a
b
c
r
a
b
c
r
V
r
i
(
2
)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
A
P
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I
SS
N:
2252
-
8792
S
ta
to
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ter
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r
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F
a
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r
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id
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91
W
h
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e,
d
dt
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h
e
f
lu
x
lin
k
a
g
es e
q
u
a
tio
n
s
(
3
an
d
4
)
ar
e
s
h
o
w
n
a
s
f
o
llo
w
s
:
a
b
c
s
s
a
b
c
s
s
r
a
b
c
r
L
i
L
i
(
3
)
(
4
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t M
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m
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I
SS
N
:
2252
-
8792
IJ
A
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E
Vo
l.
6
,
No
.
2
,
A
u
g
u
s
t 2
0
1
7
:
8
9
–
102
94
T
h
e
r
ef
er
en
ce
f
r
a
m
e
is
u
s
ed
to
co
n
v
er
t
i
n
p
u
t
v
o
ltag
e
s
(
ab
c
r
ef
er
en
ce
f
r
a
m
e)
to
t
h
e
d
q
r
ef
er
en
c
e
f
r
a
m
e,
a
n
d
o
u
tp
u
t
c
u
r
r
en
ts
(
d
q
r
ef
er
en
ce
f
r
a
m
e)
to
th
e
a
b
c
r
ef
er
en
ce
f
r
a
m
e.
w
e
m
a
y
ch
o
o
s
e
a
m
o
n
g
th
e
f
o
llo
w
in
g
r
ef
er
e
n
ce
f
r
a
m
e
tr
an
s
f
o
r
m
a
tio
n
s
.
(
i)
R
o
to
r
r
ef
er
en
ce
f
r
a
m
e
(
P
ar
k
tr
an
s
f
o
r
m
atio
n
)
(
ii)
Statio
n
ar
y
r
e
f
er
en
ce
f
r
a
m
e
(
C
l
ar
k
e
o
r
αβ
tr
an
s
f
o
r
m
a
tio
n
)
(
iii)
S
y
n
ch
r
o
n
o
u
s
r
e
f
er
en
ce
f
r
a
m
e
T
h
e
f
o
llo
w
i
n
g
i
n
s
tr
u
ctio
n
s
h
a
v
e
b
ee
n
s
u
g
g
e
s
ted
b
y
Kr
au
s
e
&
T
h
o
m
as
[
2
1
]
.
(
i)
C
h
o
o
s
e
t
h
e
s
tatio
n
ar
y
r
ef
er
e
n
ce
f
r
a
m
e
i
f
th
e
s
tato
r
v
o
ltag
e
s
ar
e
eith
er
u
n
b
ala
n
ce
d
o
r
d
is
-
co
n
tin
u
o
u
s
an
d
th
e
r
o
to
r
v
o
ltag
es a
r
e
b
alan
ce
d
(
o
r
0
)
.
(
ii)
C
h
o
o
s
e
t
h
e
r
o
to
r
r
ef
er
en
ce
f
r
a
m
e
i
f
th
e
r
o
to
r
v
o
ltag
e
s
ar
e
eith
er
u
n
b
alan
c
ed
o
r
d
is
co
n
ti
n
u
o
u
s
a
n
d
th
e
s
tato
r
v
o
ltag
e
s
ar
e
b
alan
ce
d
.
(
iii)
C
h
o
o
s
e
eit
h
er
th
e
s
tatio
n
ar
y
o
r
s
y
n
c
h
r
o
n
o
u
s
r
ef
er
en
ce
f
r
a
m
e
s
if
all
v
o
lta
g
es
ar
e
b
alan
ce
d
an
d
co
n
tin
u
o
u
s
.
Fo
r
th
e
s
ta
tio
n
ar
y
r
ef
er
e
n
ce
f
r
a
m
e,
t
h
e
v
a
lu
e
o
f
r
o
to
r
an
g
le
i
s
s
et
to
0
a
n
d
th
e
v
al
u
e
o
f
β
i
s
s
et
to
-
θ
r
.
T
h
e
ch
o
ice
o
f
r
ef
er
e
n
ce
f
r
a
m
e
in
f
lu
e
n
ce
d
t
h
e
w
a
v
ef
o
r
m
s
o
f
all
d
q
v
ar
iab
les.
I
t
also
i
n
f
lu
e
n
ce
d
th
e
s
i
m
u
latio
n
s
p
ee
d
an
d
in
d
ef
i
n
ite
ca
s
e
s
,
th
e
ac
cu
r
ac
y
o
f
t
h
e
r
esu
lts
.
I
n
th
e
p
r
esen
t
w
o
r
k
,
w
e
m
a
y
ch
o
o
s
e
eith
er
s
ta
tio
n
ar
y
o
r
s
y
n
ch
r
o
n
o
u
s
r
e
f
er
en
ce
f
r
a
m
e.
I
t
h
as
b
ee
n
o
b
s
er
v
ed
th
at
th
e
s
y
n
c
h
r
o
n
o
u
s
o
r
s
tatio
n
ar
y
r
e
f
er
en
ce
f
r
am
e
g
iv
e
s
ap
p
r
o
x
i
m
atel
y
s
a
m
e
r
esu
lts
.
T
h
er
ef
o
r
e,
w
it
h
t
h
is
p
r
o
p
o
s
ed
m
o
d
el,
eit
h
er
s
tatio
n
ar
y
o
r
s
y
n
c
h
r
o
n
o
u
s
r
ef
er
en
ce
f
r
a
m
e
ca
n
b
e
ch
o
s
e
n
.
T
h
e
p
r
o
f
icien
t
an
d
f
r
eq
u
e
n
t
m
eth
o
d
is
u
s
ed
f
o
r
p
r
o
d
u
cin
g
th
e
P
W
M
p
u
ls
es.
Fo
r
p
r
o
d
u
cin
g
th
e
P
W
M
p
u
ls
es
co
m
p
ar
i
s
o
n
o
f
th
e
o
u
tp
u
t
v
o
lta
g
e
to
s
y
n
th
e
s
ize
(
5
0
Hz
in
th
is
ca
s
e)
w
i
th
a
tr
ia
n
g
u
l
ar
ca
r
r
ier
'
s
w
av
e
a
t
th
e
s
w
itc
h
i
n
g
f
r
eq
u
en
c
y
1
6
5
0
Hz
(
i
n
t
h
i
s
ca
s
e)
is
d
o
n
e.
T
h
is
m
et
h
o
d
is
e
m
p
lo
y
ed
i
n
t
h
e
Dis
cr
ete
3
-
p
h
ase
P
W
M
p
u
ls
e
g
en
er
ato
r
b
lo
ck
i
n
t
h
e
Ma
tlab
/Si
m
u
li
n
k
.
T
h
e
li
n
e
-
to
-
li
n
e
R
MS
o
u
tp
u
t
v
o
lta
g
e
is
a
f
u
n
ctio
n
o
f
t
h
e
DC
in
p
u
t v
o
lta
g
e
a
n
d
o
f
th
e
m
o
d
u
latio
n
in
d
e
x
m
a
s
g
i
v
e
n
in
th
e
f
o
llo
w
i
n
g
eq
u
atio
n
.
3
0
.
6
1
2
22
L
L
r
m
s
d
c
d
c
m
V
V
m
V
(
2
7
)
T
h
er
ef
o
r
e,
a
DC
v
o
ltag
e
o
f
4
0
0
V
w
it
h
a
m
o
d
u
latio
n
f
ac
to
r
o
f
0
.
9
0
y
ield
s
t
h
e
2
2
0
V
R
MS
v
o
lta
g
es
,
w
h
ic
h
i
s
th
e
n
o
m
i
n
al
v
o
lta
g
e
o
f
t
h
e
u
s
e
d
in
d
u
ctio
n
m
o
to
r
.
T
h
e
f
u
n
d
a
m
e
n
tal
co
m
p
o
n
en
t
(
5
0
Hz)
is
co
m
p
u
ted
b
y
t
h
e
d
is
cr
ete
Fo
u
r
ier
b
lo
ck
w
h
ic
h
i
s
e
m
b
ed
d
ed
in
th
e
ch
o
p
p
ed
V
ab
v
o
ltag
e
an
d
i
n
th
e
p
h
ase
a
c
u
r
r
en
t.
3
.
1
Si
m
ula
t
io
n
re
s
ults o
f
t
he
hea
lt
hy
co
nd
it
io
n o
f
t
he
m
o
t
o
r
un
der
f
ull
-
lo
a
d
T
h
e
s
i
m
u
latio
n
r
es
u
lt
s
in
h
ea
lth
y
o
r
s
y
m
m
e
tr
ical
m
o
to
r
co
n
d
itio
n
o
f
t
h
e
in
d
u
ctio
n
m
o
to
r
ar
e
as
s
h
o
w
n
i
n
Fi
g
u
r
e
2
.
T
o
tally
f
o
u
r
m
o
to
r
p
ar
am
e
te
r
s
h
a
v
e
b
ee
n
co
n
s
id
er
ed
f
o
r
th
e
an
al
y
s
is
o
f
th
e
I
M.
T
h
ese
p
ar
am
eter
s
ar
e
s
tato
r
cu
r
r
en
t,
r
o
to
r
cu
r
r
en
t,
r
o
to
r
s
p
ee
d
an
d
d
ev
elo
p
ed
elec
tr
o
m
ag
n
etic
to
r
q
u
e.
T
w
o
h
ea
lt
h
y
m
o
d
e
s
h
a
v
e
b
ee
n
co
n
s
id
er
ed
;
First
h
ea
lt
h
y
m
o
d
e
is
f
o
r
s
tan
d
s
till
co
n
d
itio
n
an
d
s
ec
o
n
d
is
f
o
r
r
u
n
n
i
n
g
co
n
d
itio
n
,
s
in
ce
w
e
ar
e
f
o
cu
s
i
n
g
o
n
tr
an
s
ie
n
t
an
al
y
s
i
s
o
f
th
e
m
o
to
r
.
T
h
er
ef
o
r
e,
w
e
also
n
e
ed
to
o
b
s
er
v
e
h
o
w
m
o
to
r
is
b
e
h
av
in
g
in
th
e
r
u
n
n
in
g
co
n
d
itio
n
s
.
Firstl
y
,
f
o
r
h
e
alth
y
m
o
d
e
o
f
th
e
m
o
to
r
,
t
h
e
s
lip
is
s
et
at
1
(
s
=1
)
w
it
h
n
o
m
i
n
al
m
ec
h
an
ica
l
lo
a
d
to
r
q
u
e
1
5
N
-
m
.
Seco
n
d
l
y
,
f
o
r
r
u
n
n
in
g
co
n
d
itio
n
,
th
e
s
l
ip
is
s
et
a
t
0
.
0
4
w
it
h
s
a
m
e
lo
ad
to
r
q
u
e
an
d
m
a
y
b
e
o
b
s
er
v
ed
f
r
o
m
T
ab
le
1
an
d
T
ab
le
2
.
T
h
eses
tab
les
r
e
v
ea
l
t
h
e
ch
a
n
g
e
s
i
n
m
o
to
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p
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am
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tr
a
n
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t c
o
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o
n
s
f
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r
h
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l
th
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w
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a
s
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tato
r
in
ter
-
t
u
r
n
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a
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to
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(
a)
(
b
)
0
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1
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2
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4
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20
40
60
80
100
T
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(
s
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