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(DT
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m
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K
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w
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:
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tr
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m
et
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d
Desig
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p
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FEM
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7
In
s
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Ma
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[
1
]
,
[
2
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.
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[
3
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,
[
4
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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w
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ed
in
th
is
p
a
p
er
.
T
h
e
SR
A
d
o
es
n
o
t
i
m
p
le
m
en
t
an
y
r
ar
e
-
ea
r
t
h
m
ater
ial
o
r
h
i
g
h
l
y
ex
p
e
n
s
i
v
e
p
er
m
an
e
n
t
m
a
g
n
ets.
SR
As
p
r
o
v
id
e
in
h
er
e
n
t
f
a
u
lt
to
ler
an
ce
s
,
m
a
k
i
n
g
t
h
e
m
ex
tr
e
m
e
l
y
s
u
itab
le
f
o
r
au
to
m
o
tiv
e
an
d
ae
r
o
s
p
ac
e
ap
p
licatio
n
s
[
7
]
,
[
8
]
.
Fig
u
r
e
1
s
h
o
w
s
a
n
ex
a
m
p
le
o
f
th
e
s
tr
u
c
t
u
r
e
o
f
a
6
/4
SR
A
[
9
]
.
Sw
itch
ed
r
elu
c
tan
ce
ac
t
u
a
to
r
(
SR
A
)
f
u
n
d
a
m
en
ta
ll
y
co
n
s
i
s
t
o
f
t
h
r
ee
(
3
)
m
ain
ele
m
e
n
ts
;
i.e
:
(
i)
s
tato
r
;
(
ii)
r
o
to
r
an
d
(
iii)
co
il
w
i
n
d
in
g
.
C
o
n
v
en
t
io
n
all
y
,
t
w
o
s
ta
to
r
p
o
les
at
o
p
p
o
s
ite
en
d
s
ar
e
co
n
f
i
g
u
r
ed
to
f
o
r
m
o
n
e
p
h
a
s
e.
Fi
g
u
r
e
1
SR
A
h
as
a
3
-
p
h
ase,
6
s
tato
r
p
o
les
an
d
4
r
o
to
r
p
o
les.
T
h
e
n
u
m
b
er
o
f
r
o
to
r
p
o
les
ar
e
ch
o
s
en
to
b
e
d
if
f
er
en
t
to
th
e
n
u
m
b
er
o
f
s
tato
r
p
o
les.
B
o
th
th
e
s
tato
r
an
d
r
o
to
r
h
av
e
s
alien
t
p
o
les.
T
h
e
n
u
m
b
er
o
f
p
o
les
p
r
esen
ce
o
n
s
tato
r
d
ep
en
d
s
o
n
th
e
n
u
m
b
er
o
f
p
h
ase
s
f
o
r
o
p
er
atio
n
.
T
h
e
SR
A
s
h
o
w
n
h
as a
c
o
n
ce
n
tr
ated
t
y
p
ed
p
h
ase
w
i
n
d
i
n
g
s
.
Fig
u
r
e
1
.
Desig
n
o
f
co
n
v
e
n
tio
n
al
S
R
A
[
9
]
Fro
m
Fig
u
r
e
1
,
th
e
SR
A
d
esig
n
p
ar
am
e
ter
s
ar
e
v
ar
ied
to
o
b
t
ain
th
e
o
p
ti
m
ized
d
esig
n
f
o
r
h
ig
h
to
r
q
u
e
an
d
lar
g
e
an
g
u
lar
m
o
tio
n
;
i.e
.
:
air
g
ap
,
n
u
m
b
er
o
f
p
h
ase
s
,
n
u
m
b
er
o
f
s
tato
r
p
o
les,
n
u
m
b
er
o
f
r
o
to
r
p
o
les,
r
o
to
r
ar
c
an
g
les,
s
tato
r
co
il
w
i
n
d
in
g
s
a
n
d
ex
c
itatio
n
c
u
r
r
en
t.
T
h
er
ef
o
r
e,
in
t
h
is
p
ap
er
s
ev
er
al
S
R
A
d
esi
g
n
to
p
o
lo
g
ies
an
d
its
co
n
tr
o
l
s
tr
ateg
ie
s
ar
e
r
ev
ie
w
ed
a
n
d
co
m
p
ar
ed
in
d
etails.
I
n
Secti
o
n
2
,
th
e
d
esi
g
n
p
ar
am
eter
s
an
d
th
eir
i
m
p
ac
t
o
n
t
h
e
p
er
f
o
r
m
a
n
ce
o
f
SR
A
w
i
ll
b
e
d
is
cu
s
s
ed
.
I
n
Se
ctio
n
3
,
th
e
u
s
e
o
f
f
i
n
ite
e
le
m
en
t
m
eth
o
d
(
FEM
)
an
al
y
s
is
in
S
R
A
r
esear
c
h
is
h
ig
h
li
g
h
ted
.
I
n
Sectio
n
4
,
th
e
co
n
tr
o
l
s
tr
ateg
ie
s
f
o
r
S
R
A
w
il
l
b
e
d
is
cu
s
s
ed
.
Fin
all
y
,
co
n
cl
u
s
io
n
s
ar
e
p
r
ese
n
ted
in
Sect
io
n
5
.
2.
E
F
F
E
C
T
O
F
DE
S
I
G
N
P
AR
AM
E
T
E
RS O
F
SW
I
T
CH
E
D
RE
L
UCT
ANCE
ACTU
A
T
O
RS
2
.
1
.
Str
uct
ure
Desig
n
s
T
h
e
s
tr
u
ct
u
r
e
co
n
ce
p
t
s
o
f
S
R
A
(
s
w
itc
h
ed
r
el
u
ctan
ce
ac
t
u
at
o
r
)
ar
e
g
ain
i
n
g
i
n
n
o
v
ati
v
e
i
m
p
r
o
v
e
m
en
t
s
th
r
o
u
g
h
o
u
t
th
e
s
e
p
ast
f
e
w
y
e
ar
s
.
On
e
o
f
th
ese
d
esi
g
n
s
th
a
t
s
to
o
d
o
u
t
am
o
n
g
co
n
v
e
n
tio
n
al
s
tr
u
c
tu
r
es
i
s
th
e
ax
ial
S
R
A
w
it
h
s
e
g
m
e
n
tal
r
o
t
o
r
[
1
0
]
,
[
1
1
]
w
h
er
e
t
h
e
s
tato
r
an
d
r
o
to
r
c
o
r
es
ar
e
lam
i
n
ated
in
to
d
is
k
s
h
ap
e.
T
h
e
s
tato
r
to
o
th
co
n
s
i
s
t
o
f
d
o
u
b
le
-
w
id
t
h
teet
h
u
s
ed
f
o
r
co
il
w
i
n
d
in
g
s
a
n
d
s
ta
n
d
ar
d
-
w
id
t
h
teet
h
w
h
ic
h
i
n
s
tead
o
f
u
s
i
n
g
f
o
r
co
il
w
i
n
d
i
n
g
s
,
ar
e
s
p
ec
if
icall
y
d
esi
g
n
ed
to
p
r
o
v
id
e
th
e
cir
c
u
it
f
o
r
th
e
f
l
u
x
p
ath
.
T
h
e
r
o
to
r
o
n
th
e
o
th
er
h
a
n
d
is
m
ad
e
u
p
o
f
a
s
er
ies
o
f
s
e
g
m
e
n
tal
r
o
to
r
b
lo
c
k
s
,
w
h
ic
h
ar
e
e
m
b
ed
d
ed
in
to
an
al
u
m
in
u
m
b
o
d
y
.
T
h
ese
u
n
iq
u
e
co
n
f
i
g
u
r
atio
n
s
s
u
cc
es
s
f
u
ll
y
e
n
h
a
n
ce
f
l
u
x
li
n
k
a
g
e
to
i
n
cr
ea
s
e
to
r
q
u
e
o
u
tp
u
t
b
y
1
6
.
5
7
%.
Fig
u
r
e
2
s
h
o
w
s
t
h
e
d
esi
g
n
co
n
ce
p
t o
f
t
h
e
SR
A
w
it
h
s
e
g
m
e
n
tal
r
o
to
r
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
PEDS
I
SS
N:
2
0
8
8
-
8
694
R
o
ta
r
y
S
w
itch
ed
R
elu
cta
n
ce
A
ctu
a
to
r
:
A
R
ev
iew
o
n
Desig
n
Op
timiz
a
tio
n
a
n
d
its
C
o
n
tr
o
l Meth
o
d
s
(
S
.
P
.
Tee)
1089
Fig
u
r
e
2
.
Stru
ct
u
r
e
o
f
an
ax
ial
SR
A
w
it
h
s
e
g
m
e
n
ted
r
o
to
r
[
1
0
]
Mu
ltil
a
y
er
S
R
A
w
it
h
m
ag
n
et
icall
y
i
n
d
ep
en
d
en
t
la
y
er
s
i
s
a
ls
o
d
ev
elo
p
ed
[
1
2
]
w
h
er
e
a
n
u
m
b
er
o
f
in
d
ep
en
d
en
t
S
R
As
ar
e
co
n
n
ec
ted
w
it
h
a
co
m
m
o
n
s
h
a
f
t.
T
h
e
d
esig
n
w
il
l
d
eliv
er
g
r
ea
ter
to
r
q
u
e
o
u
tp
u
t
d
u
e
to
its
m
u
l
tip
le
n
u
m
b
er
s
o
f
S
R
A
r
o
tatin
g
a
s
o
n
e.
F
ig
u
r
e
3
s
h
o
w
s
th
e
d
es
ig
n
s
tr
u
ct
u
r
e
o
f
a
m
u
l
ti
la
y
er
S
R
A
w
i
th
4
in
d
ep
en
d
en
t 4
/4
SR
As.
Fig
u
r
e
3
.
Stru
ct
u
r
e
o
f
m
u
ltil
a
y
er
SR
A
[
1
2
]
An
o
th
er
n
o
v
el
d
esig
n
is
t
h
e
p
an
ca
k
e
-
s
h
ap
ed
ax
ial
-
f
l
u
x
S
R
A
[
1
3
]
w
h
ich
h
as
s
e
v
er
al
c
-
co
r
es
w
it
h
in
d
iv
id
u
al
w
i
n
d
in
g
s
in
s
tead
o
f
co
n
v
e
n
tio
n
al
s
tato
r
p
o
les.
T
h
is
d
esi
g
n
p
r
o
v
id
es
v
ar
io
u
s
ad
v
an
ta
g
es
s
u
c
h
as
h
ig
h
to
r
q
u
e
an
d
p
o
w
er
d
en
s
i
t
y
,
m
ax
i
m
u
m
t
h
er
m
al
d
is
p
er
s
i
o
n
,
co
n
v
e
n
ie
n
t
r
ep
lace
m
en
t
o
f
d
a
m
a
g
ed
c
-
co
r
es,
ea
s
y
co
il
w
i
n
d
in
g
a
n
d
r
ed
u
ce
d
co
p
p
er
lo
s
s
es.
Fi
g
u
r
e
4
s
h
o
w
s
t
h
e
s
tr
u
ct
u
r
al
d
r
a
w
i
n
g
o
f
t
h
e
c
-
co
r
e
an
d
r
o
to
r
p
o
les o
f
th
e
p
an
ca
k
e
-
s
h
ap
ed
S
R
A
.
Fig
u
r
e
4
.
Stru
ct
u
r
e
o
f
p
an
ca
k
e
-
s
h
ap
ed
ax
ial
-
f
lu
x
S
R
A
[
1
3
]
A
n
o
v
el
b
ea
r
in
g
less
s
w
itc
h
ed
r
elu
ctan
ce
ac
t
u
ato
r
(
B
L
S
R
A
)
w
it
h
d
o
u
b
le
s
tato
r
is
also
in
tr
o
d
u
ce
d
[
1
4
]
.
T
h
e
d
esig
n
i
n
clu
d
e
s
an
in
s
id
e
s
tato
r
to
g
en
er
ate
r
ad
ial
f
o
r
ce
to
s
u
s
p
en
d
th
e
r
o
to
r
an
d
an
o
u
ts
id
e
s
tato
r
w
h
ic
h
p
r
o
d
u
ce
s
r
o
tatio
n
al
to
r
q
u
e.
T
h
e
m
ai
n
ad
v
a
n
t
a
g
e
o
f
d
o
u
b
le
s
tato
r
is
t
h
e
d
ec
o
u
p
li
n
g
co
n
tr
o
l
b
et
w
ee
n
r
ad
ial
f
o
r
ce
an
d
to
r
q
u
e,
in
ad
d
itio
n
to
th
e
c
o
n
s
ta
n
t
r
ad
ial
f
o
r
ce
at
th
e
ar
b
i
tr
ar
y
r
o
to
r
p
o
s
itio
n
u
s
i
n
g
a
co
n
s
ta
n
t c
u
r
r
e
n
t v
al
u
e.
As
a
co
n
cl
u
s
io
n
,
co
n
v
en
t
io
n
a
l
SR
A
r
o
to
r
an
d
s
tato
r
s
tr
u
ct
u
r
es
ar
e
u
n
d
er
g
o
in
g
i
m
p
r
o
v
e
m
en
ts
w
it
h
th
e
d
ev
elo
p
m
e
n
t
o
f
n
o
v
el
d
esi
g
n
s
s
u
ch
a
s
s
e
g
m
en
ted
r
o
to
r
,
m
u
ltil
a
y
er
SR
A
an
d
o
th
er
s
wh
ich
ca
n
e
f
f
ec
ti
v
el
y
in
cr
ea
s
e
to
r
q
u
e
o
u
tp
u
t
a
n
d
m
i
n
i
m
ize
t
h
e
g
r
ea
test
f
la
w
o
f
S
R
A
,
to
r
q
u
e
r
ip
p
le.
T
h
ese
n
e
w
d
esig
n
s
ar
e
ev
o
l
v
i
n
g
b
ased
o
n
th
e
n
ee
d
s
o
f
SR
A
i
n
v
ar
io
u
s
i
n
d
u
s
tr
ial
an
d
e
n
g
i
n
ee
r
in
g
f
ield
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
694
IJ
PEDS
Vo
l.
8
,
No
.
3
,
Sep
te
m
b
er
2
0
1
7
:
1
0
8
7
–
1
1
0
0
1090
2
.
2
.
P
ha
s
es o
f
SRA
A
co
n
v
e
n
tio
n
al
3
-
p
h
ase
d
r
iv
en
r
o
tar
y
s
w
i
tch
ed
r
el
u
cta
n
ce
ac
tu
ato
r
d
e
m
a
n
d
s
a
co
m
m
a
n
d
s
c
h
e
m
e
th
at,
s
eq
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en
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,
e
n
er
g
ize
s
ac
tu
ato
r
p
h
ase
s
,
t
h
u
s
allo
w
i
n
g
th
e
ac
tu
a
to
r
to
r
o
tate
co
n
ti
n
u
o
u
s
l
y
.
T
o
r
q
u
e
p
r
o
d
u
ctio
n
is
n
o
t
d
ep
en
d
en
t
o
n
th
e
c
u
r
r
en
t
d
ir
ec
tio
n
;
i
n
s
tea
d
th
e
r
o
tatio
n
al
to
r
q
u
e
d
ep
en
d
s
o
n
t
h
e
co
n
ti
n
u
it
y
o
f
th
e
cu
r
r
en
t
s
u
p
p
l
y
[
1
5
]
.
I
n
cr
ea
s
in
g
th
e
n
u
m
b
er
o
f
p
h
ase
s
in
SR
As
p
r
o
v
id
e
s
i
m
ilar
ad
v
an
ta
g
e
s
as
m
u
lti
-
p
h
ase
elec
tr
ical
ac
t
u
ato
r
s
,
h
e
n
ce
lead
i
n
g
to
e
x
ten
s
i
v
e
r
ese
ar
ch
es
f
o
r
au
to
m
o
ti
v
e
ap
p
lic
atio
n
s
,
n
o
tab
l
y
f
o
r
h
y
b
r
id
elec
tr
ical
v
e
h
icles
[
1
6
]
,
[
1
7
]
.
Mu
lti
-
p
h
ase
SR
A
d
is
p
la
y
s
e
n
h
an
ce
d
to
r
q
u
e
p
r
o
d
u
ct
io
n
,
in
cr
ea
s
ed
f
a
u
lt
to
ler
an
t c
ap
ab
ilit
y
an
d
d
ec
r
ea
s
e
in
v
ib
r
atio
n
a
n
d
n
o
is
e
[
1
8
]
,
[
1
9
]
.
SR
As
ar
e
t
y
p
icall
y
d
r
i
v
en
b
y
3
-
p
h
ase
c
u
r
r
en
t
s
u
p
p
l
y
;
h
o
w
ev
er
th
er
e
ar
e
also
d
esig
n
s
o
n
2
-
p
h
a
s
e
SR
As
[
2
0
]
.
T
h
is
d
esig
n
s
u
c
ce
s
s
f
u
l
l
y
r
ed
u
ce
d
co
r
e
lo
s
s
an
d
in
cr
ea
s
ed
to
r
q
u
e
p
r
o
d
u
ctio
n
b
u
t
h
a
v
e
th
e
d
o
w
n
s
id
e
o
f
p
r
o
v
id
in
g
u
n
id
ir
ec
tio
n
al
r
o
tatio
n
o
n
l
y
.
Fi
g
u
r
e
5
s
h
o
w
s
th
e
s
tr
u
ct
u
r
e
d
esig
n
o
f
a
2
-
p
h
a
s
e
4
/3
d
r
iv
en
S
R
A
.
Fig
u
r
e
5
.
4
/3
SR
A
d
r
iv
e
n
b
y
2
-
p
h
a
s
e
cu
r
r
en
t
s
u
p
p
l
y
[
2
0
]
T
h
er
e
ar
e
also
s
t
u
d
ies
o
n
th
e
d
esig
n
o
f
S
R
A
p
o
w
er
ed
b
y
4
-
p
h
ase
c
u
r
r
en
t
s
u
p
p
l
y
[
2
1
]
.
A
m
o
d
u
lar
4
-
p
h
ase
S
R
A
is
ab
le
to
eli
m
i
n
ate
lo
w
f
r
eq
u
en
c
y
to
r
q
u
e
r
ip
p
le
d
u
e
to
a
s
y
m
m
etr
ic
m
u
t
u
a
l
co
u
p
li
n
g
b
et
w
ee
n
ad
j
ac
en
t
p
h
ases
[
2
2
]
.
Fig
u
r
e
6
s
h
o
w
s
t
h
e
d
esig
n
o
f
a
co
n
v
en
tio
n
al
4
-
p
h
ase
8
/6
S
R
A
an
d
a
m
o
d
u
lar
4
-
p
h
as
e
8
/6
SR
A
f
o
r
elec
tr
ic
v
e
h
icle
a
p
p
licatio
n
.
(
a)
(
b
)
Fig
u
r
e
6
.
(
a)
C
o
n
v
en
tio
n
al
8
/6
SR
A
d
r
iv
e
n
b
y
4
-
p
h
a
s
e
cu
r
r
e
n
t s
u
p
p
l
y
.
(
b
)
Mo
d
u
lar
8
/6
SR
A
d
r
iv
e
n
b
y
4
-
p
h
ase
cu
r
r
en
t s
u
p
p
l
y
[
2
2
]
T
h
e
5
-
p
h
ase
SR
A
ar
e
u
n
co
m
m
o
n
b
u
t
t
h
er
e
ar
e
s
tu
d
ies
o
n
s
u
c
h
d
esig
n
s
tr
u
ctu
r
e
s
s
u
c
h
as
th
e
ax
ial
-
f
l
u
x
5
-
p
h
a
s
e
S
R
A
[
1
3
]
.
T
h
i
s
d
esig
n
co
n
s
i
s
ts
o
f
1
5
c
-
co
r
es
w
h
ic
h
f
u
n
ctio
n
s
a
s
s
ta
to
r
p
o
les,
ea
ch
w
it
h
in
d
iv
id
u
al
co
ils
th
a
t
m
a
k
e
u
p
th
r
ee
r
ep
etitio
n
s
o
f
f
i
v
e
p
h
a
s
es.
SR
As
u
p
to
6
-
p
h
ase
ar
e
ac
h
iev
ab
le
w
h
er
e
r
esear
ch
er
s
ar
e
p
r
o
p
o
s
in
g
m
et
h
o
d
s
to
o
p
ti
m
ize
to
r
q
u
e
r
ip
p
le
d
u
e
to
m
u
t
u
al
co
u
p
lin
g
b
et
w
ee
n
p
h
ases
o
f
t
h
e
ac
tu
ato
r
[
2
3
]
.
Oth
er
6
-
p
h
a
s
e
SR
A
r
e
s
ea
r
ch
i
n
cl
u
d
es
t
h
e
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t
u
d
y
o
n
co
n
v
er
ter
to
p
o
lo
g
y
wh
ich
co
m
b
i
n
es
th
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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SS
N:
2
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8
8
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694
R
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ta
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S
w
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ed
R
elu
cta
n
ce
A
ctu
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to
r
:
A
R
ev
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o
n
Desig
n
Op
timiz
a
tio
n
a
n
d
its
C
o
n
tr
o
l Meth
o
d
s
(
S
.
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Tee)
1091
ad
v
an
ta
g
es
o
f
b
o
t
h
as
y
m
m
etr
ic
h
al
f
b
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id
g
e
co
n
v
er
ter
an
d
s
p
lit
p
h
ase
co
n
v
er
ter
[
2
4
]
f
o
r
l
o
w
-
co
s
t
a
n
d
h
ig
h
-
p
er
f
o
r
m
a
n
ce
co
n
v
er
ter
s
.
Gen
er
all
y
,
th
e
i
n
cr
ea
s
i
n
g
n
u
m
b
er
o
f
p
h
a
s
es
allo
w
s
h
i
g
h
er
to
r
q
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o
u
tp
u
t
an
d
d
ec
r
ea
s
in
g
to
r
q
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e
r
ip
p
le.
SR
As
w
h
ich
e
x
ce
ed
3
-
p
h
a
s
e
p
r
o
v
id
e
s
ig
n
i
f
ica
n
t
ad
v
an
ta
g
e
s
h
o
w
e
v
er
;
th
e
co
n
tr
o
l
m
et
h
o
d
f
o
r
th
es
e
ad
d
itio
n
al
p
h
ases
w
ill
b
ec
o
m
e
m
u
c
h
m
o
r
e
co
m
p
lica
ted
.
Hen
ce
f
o
r
th
,
it
m
u
s
t
b
e
m
an
a
g
ed
d
elica
tel
y
to
en
s
u
r
e
co
n
s
is
ten
t a
n
d
ef
f
ec
ti
v
e
p
h
ase
s
w
itc
h
in
g
.
2
.
3
.
Nu
m
ber
o
f
Sta
t
o
r
a
nd
Ro
t
o
r
P
o
les
T
h
e
n
u
m
b
er
o
f
s
tato
r
a
n
d
r
o
to
r
p
o
les
v
ar
ies
ac
co
r
d
in
g
to
t
h
e
n
ee
d
s
a
n
d
ap
p
licatio
n
s
f
o
r
th
e
S
R
A
.
T
h
e
m
o
s
t
co
m
m
o
n
i
s
t
h
e
6
/4
SR
A
[
2
5
]
,
w
ith
in
cr
ea
s
in
g
p
o
les
u
p
to
1
2
/8
[
2
6
]
o
r
1
2
/1
4
[
2
7
]
an
d
ev
en
o
t
h
er
co
m
b
i
n
atio
n
n
u
m
b
er
s
o
f
s
tato
r
an
d
r
o
to
r
p
o
les,
d
ep
en
d
in
g
o
n
t
h
e
u
s
a
g
e
p
u
r
p
o
s
e
o
f
t
h
e
S
R
A
.
T
h
e
n
u
m
b
er
o
f
p
o
les
af
f
ec
t
s
th
e
ac
o
u
s
tic
b
e
h
av
io
r
s
i
g
n
if
ica
n
tl
y
[
2
8
]
.
Hig
h
er
r
atio
o
f
s
tato
r
to
r
o
t
o
r
p
o
les
p
r
o
v
id
es
lo
w
er
ef
f
icien
c
y
d
u
e
to
it
s
h
i
g
h
m
a
x
i
m
u
m
p
o
w
er
d
en
s
it
y
[
2
9
]
.
Ho
w
e
v
er
,
h
i
g
h
r
atio
s
o
f
s
tato
r
to
r
o
to
r
p
o
les
h
av
e
t
h
e
ad
v
an
ta
g
e
o
f
n
o
is
e
a
n
d
v
ib
r
atio
n
r
ed
u
ctio
n
,
in
ad
d
itio
n
to
r
ed
u
ce
d
r
a
d
ial
f
o
r
ce
[
3
0
]
.
I
t
is
also
p
r
o
v
en
th
at
h
ig
h
er
r
atio
s
tato
r
an
d
r
o
to
r
p
o
les
w
ill
i
n
cr
ea
s
e
th
e
t
h
r
u
s
t
f
o
r
ce
[
3
1
]
,
[
3
2
]
.
Fig
u
r
e
7
s
h
o
w
s
th
e
e
f
f
ic
ien
c
y
co
m
p
ar
is
o
n
o
f
6
/4
,
1
2
/8
an
d
1
8
/1
2
SR
As at
1
5
0
0
0
r
ev
o
lu
tio
n
p
er
m
in
u
te
(
r
p
m
)
.
Fig
u
r
e
7
.
Gr
ap
h
o
f
p
o
w
er
d
en
s
it
y
ag
a
in
s
t e
f
f
ic
ien
c
y
f
o
r
d
if
f
er
en
t p
o
le
co
n
f
i
g
u
r
atio
n
s
at
1
5
0
0
0
r
p
m
[
2
9
]
I
t
ca
n
b
e
co
n
cl
u
d
ed
th
at
t
h
e
1
2
/8
SR
A
is
t
h
e
o
p
ti
m
ized
co
n
v
e
n
tio
n
al
d
esig
n
a
s
it
p
r
o
v
id
es
g
r
ea
t
ef
f
icien
c
y
w
i
th
a
d
ec
e
n
t
m
ax
i
m
u
m
p
o
w
er
d
en
s
it
y
[
2
9
]
.
L
o
w
p
o
le
r
atio
d
esig
n
s
d
eli
v
er
h
ig
h
ef
f
icie
n
c
y
b
u
t
lo
w
p
o
w
er
d
en
s
it
y
.
Hi
g
h
n
u
m
b
er
o
f
p
o
le
p
air
s
p
r
o
v
id
es
lo
w
e
f
f
icie
n
c
y
b
u
t
h
i
g
h
m
ax
i
m
u
m
p
o
w
er
d
en
s
it
y
a
n
d
b
etter
ac
o
u
s
tic
b
eh
a
v
io
r
.
Hen
ce
,
th
e
o
b
j
ec
tiv
es
an
d
o
p
er
atin
g
co
n
d
itio
n
o
f
th
e
SR
A
s
er
v
es
as
an
i
m
p
o
r
tan
t
in
p
u
t i
n
ch
o
o
s
i
n
g
th
e
s
u
i
tab
le
n
u
m
b
er
o
f
p
o
le
r
atio
f
o
r
d
if
f
er
en
t a
p
p
licatio
n
s
.
2
.
4
.
Air
G
a
p
T
h
e
g
ap
d
is
tan
ce
b
et
w
ee
n
s
tat
o
r
an
d
r
o
to
r
,
also
k
n
o
w
n
as
ai
r
g
ap
,
is
a
v
ar
y
in
g
f
ac
to
r
i
n
t
h
e
d
esig
n
o
f
SR
As.
Gap
s
i
n
S
R
A
s
i
s
n
atu
r
all
y
u
n
a
v
o
id
ab
le
an
d
th
e
y
c
o
n
tain
air
.
T
y
p
icall
y
,
a
ir
g
ap
ca
n
b
e
as
s
m
all
as
0
.
1
m
m
u
p
to
0
.
3
m
m
o
r
m
o
r
e.
Su
c
h
g
ap
s
ar
e
o
f
ten
u
n
d
esira
b
le
b
ec
au
s
e
air
h
as
h
i
g
h
r
esi
s
t
an
ce
to
t
h
e
f
lo
w
o
f
m
ag
n
etic
f
lu
x
.
T
h
u
s
,
th
e
v
a
lu
e
o
f
air
g
ap
s
m
u
s
t
b
e
m
in
u
te
b
u
t
s
u
f
f
icie
n
t
e
n
o
u
g
h
to
p
r
ev
e
n
t
co
n
tact
b
et
w
ee
n
th
e
s
tato
r
an
d
r
o
to
r
,
tak
i
n
g
in
to
co
n
s
id
er
atio
n
s
o
f
m
a
n
u
f
ac
t
u
r
in
g
to
ler
an
ce
s
o
n
t
h
eir
d
i
m
en
s
io
n
s
,
o
r
d
ef
o
r
m
atio
n
ca
u
s
ed
b
y
r
ad
ial
f
o
r
ce
s
r
es
u
lt
in
g
f
r
o
m
r
o
tar
y
m
o
tio
n
an
d
lo
o
s
en
es
s
i
n
s
u
p
p
o
r
tin
g
b
ea
r
in
g
s
.
L
ar
g
er
air
g
ap
s
p
r
o
v
id
e
s
m
all
er
to
r
q
u
e
o
u
tp
u
t
[
3
3
]
,
h
en
ce
id
ea
ll
y
air
g
ap
s
h
o
u
ld
b
e
as
s
m
all
as
p
o
s
s
ib
le.
A
ir
g
ap
o
f
SR
A
is
co
n
s
id
er
ed
to
b
e
w
ell
-
b
ala
n
ce
d
,
th
at
is
i
f
:
a.
T
h
e
r
o
to
r
o
u
ter
an
d
s
tato
r
in
n
e
r
d
iam
eter
s
ar
e
ac
co
r
d
in
g
to
f
a
b
r
icatio
n
d
i
m
en
s
io
n
s
p
r
ec
is
el
y
.
b.
T
h
e
s
tato
r
in
n
er
s
u
r
f
ac
e
a
n
d
th
e
r
o
to
r
o
u
ter
s
u
r
f
ac
e
ar
e
co
n
ce
n
tr
ic.
c.
R
elati
v
e
ec
ce
n
tr
ici
t
y
i
s
ab
s
en
t
b
et
w
ee
n
th
e
s
tato
r
an
d
r
o
to
r
a
x
es.
d.
T
h
er
e
is
n
o
tilt
b
et
w
ee
n
t
h
e
s
ta
to
r
an
d
r
o
to
r
ax
es.
Ho
w
e
v
er
,
d
u
e
to
f
ab
r
icatio
n
t
o
ler
an
ce
s
,
air
g
ap
n
o
n
-
u
n
i
f
o
r
m
it
y
o
cc
u
r
s
,
w
h
ic
h
ar
e
5
%
to
1
0
%
o
f
th
e
r
elativ
e
ec
ce
n
tr
icit
y
o
f
t
h
e
air
g
ap
b
et
w
ee
n
th
e
s
tato
r
an
d
r
o
to
r
ax
es,
in
ad
d
itio
n
to
a
co
n
ce
n
tr
icit
y
er
r
o
r
o
f
5
%
to
1
0
%
o
f
t
h
e
air
g
ap
i
s
co
n
s
i
d
er
ab
ly
t
y
p
ical
[
3
4
]
.
Fig
u
r
e
8
s
h
o
w
s
t
h
e
t
w
o
t
y
p
es
o
f
a
ir
g
ap
n
o
n
-
u
n
i
f
o
r
m
i
t
y
,
r
o
to
r
s
h
av
in
g
r
elat
iv
e
ec
ce
n
tr
i
cit
y
an
d
co
n
ce
n
tr
ic
it
y
er
r
o
r
.
T
ab
le
1
an
d
2
s
h
o
w
s
th
e
to
r
q
u
e
v
alu
es
f
o
r
v
ar
io
u
s
r
elativ
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ec
ce
n
tr
ic
ities
a
n
d
co
n
ce
n
tr
icit
y
er
r
o
r
v
alu
es.
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1092
Fig
u
r
e
8
.
(
a)
R
o
to
r
w
it
h
r
elati
v
e
ec
ce
n
tr
icit
y
(
b
)
R
o
to
r
w
it
h
co
n
ce
n
tr
icit
y
er
r
o
r
[
3
5
]
T
ab
le
1.
T
o
r
q
u
e
R
ip
p
le
at
Var
io
u
s
R
ela
tiv
e
E
cc
e
n
tr
icitie
s
[
3
5
]
R
e
l
a
t
i
v
e
Ec
c
e
n
t
r
i
c
i
t
y
(
%)
T
o
r
q
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e
R
i
p
p
l
e
(
%)
R
e
l
a
t
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v
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Ec
c
e
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t
r
i
c
i
t
y
(
%)
T
o
r
q
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e
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i
p
p
l
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(
%)
0
2
7
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3
7
25
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9
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7
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7
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50
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5
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8
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5
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8
4
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7
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4
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6
6
T
ab
le
2.
A
v
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ag
e
T
o
r
q
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d
T
o
r
q
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e
R
ip
p
le
Fo
r
C
o
n
ce
n
tr
ic
it
y
E
r
r
o
r
in
On
e
Hal
f
o
f
t
h
e
R
o
to
r
an
d
E
llip
tical
R
o
to
r
at
an
E
x
citatio
n
o
f
1
0
A
[
3
5
]
Er
r
o
r
-
5
0
%
-
1
0
%
0%
1
0
%
7
5
%
9
5
%
C
o
n
c
e
n
t
r
i
c
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t
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r
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n
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e
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T
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g
8
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7
9
9
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5
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6
9
9
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8
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1
.
7
2
1
3
.
2
6
T
r
i
pp
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e
3
1
.
7
7
2
9
.
6
9
2
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.
9
3
3
1
.
5
0
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2
.
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0
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4
.
7
3
C
o
n
c
e
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r
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r
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r
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El
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6
T
r
i
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6
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3
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3
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1
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Hig
h
er
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elativ
e
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ce
n
tr
icit
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w
il
l
p
r
o
d
u
ce
h
i
g
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er
a
v
er
ag
e
o
u
tp
u
t
to
r
q
u
e,
b
u
t
w
it
h
g
r
e
ater
to
r
q
u
e
r
ip
p
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A
t
h
ig
h
er
r
elati
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ce
n
tr
icit
y
,
t
h
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e
ar
e
also
m
o
r
e
s
ig
n
if
ican
t
h
ar
m
o
n
ic
s
p
r
esen
t,
r
es
u
lt
in
g
i
n
u
n
d
es
ir
ab
le
n
o
is
e
an
d
v
ib
r
atio
n
s
.
A
h
i
g
h
er
m
ag
n
etic
f
l
u
x
s
a
t
u
r
atio
n
o
cc
u
r
s
at
th
e
lo
ca
tio
n
o
f
a
s
m
aller
a
ir
g
ap
in
t
h
e
ca
s
e
o
f
ec
ce
n
tr
icit
y
[
3
6
]
.
A
h
i
g
h
er
a
v
er
ag
e
o
u
tp
u
t
t
o
r
q
u
e
an
d
to
r
q
u
e
r
ip
p
le
is
g
e
n
er
ated
d
u
e
to
th
e
in
cr
ea
s
e
i
n
co
n
ce
n
tr
icit
y
er
r
o
r
in
th
e
p
o
s
it
iv
e
d
ir
ec
tio
n
.
As
a
co
n
clu
s
io
n
,
s
m
a
ller
air
g
ap
p
r
o
v
id
es
less
r
elu
ctan
ce
f
o
r
m
ag
n
etic
f
l
u
x
f
lo
w
,
p
r
o
d
u
cin
g
h
i
g
h
er
to
r
q
u
e
o
u
tp
u
t.
Air
g
ap
is
o
p
tim
ized
to
a
r
an
g
e
b
et
w
ee
n
0
.
2
m
m
u
p
to
0
.
5
m
m
w
h
er
e
t
h
e
s
e
v
al
u
es
ar
e
m
o
r
e
co
m
m
o
n
[
3
7
]
-
[
3
9
]
.
R
eg
ar
d
les
s
,
air
g
ap
s
h
o
u
ld
b
e
s
u
f
f
icie
n
t
in
d
if
f
er
en
t
SR
As
to
p
r
ev
en
t
c
o
n
tact
o
f
r
o
to
r
an
d
s
tato
r
d
u
r
in
g
o
p
er
atio
n
,
an
d
also
in
cl
u
d
e
f
ab
r
icatio
n
to
ler
an
c
es.
2
.
5
.
Sta
t
o
r
Co
il Wind
ing
s
T
h
e
SR
A
s
tato
r
co
il
w
in
d
i
n
g
s
ca
n
d
if
f
er
f
r
o
m
its
w
i
n
d
i
n
g
p
atter
n
an
d
n
u
m
b
er
o
f
tu
r
n
s
,
i
m
p
ac
tin
g
th
e
p
er
f
o
r
m
a
n
ce
o
f
t
h
e
ac
t
u
ato
r
d
if
f
er
en
tl
y
.
O
n
e
u
n
iq
u
e
w
a
y
f
o
r
co
il
w
i
n
d
i
n
g
is
t
h
e
to
r
o
id
al
w
i
n
d
in
g
m
et
h
o
d
.
T
h
e
w
i
n
d
i
n
g
co
n
s
is
t
s
o
f
w
ir
e
w
o
u
n
d
ed
ar
o
u
n
d
a
d
o
n
u
t
-
s
h
ap
ed
f
er
r
o
m
ag
n
etic
m
ater
ial.
T
h
e
p
r
o
ce
s
s
f
o
r
to
r
o
id
al
w
i
n
d
i
n
g
i
s
p
r
ac
ticall
y
m
o
r
e
co
n
v
e
n
ien
t
an
d
s
i
m
p
ler
,
p
r
o
v
id
in
g
a
h
i
g
h
er
f
illi
n
g
f
a
cto
r
co
m
p
ar
ed
to
co
n
v
e
n
tio
n
al
w
i
n
d
i
n
g
s
.
T
o
r
o
i
d
al
w
in
d
i
n
g
allo
w
s
d
ir
ec
t
ex
p
o
s
u
r
e
o
f
th
e
w
i
n
d
in
g
s
,
en
h
a
n
c
in
g
m
ac
h
in
e
t
h
e
r
m
a
l
p
er
f
o
r
m
a
n
ce
s
[
4
0
]
.
R
esear
ch
s
h
o
w
ed
th
at
u
tili
zi
n
g
a
p
r
o
p
er
co
il
co
n
n
ec
tio
n
an
d
s
w
i
tch
i
n
g
s
eq
u
en
ce
,
to
r
o
id
al
w
i
n
d
ed
SR
A
i
s
ab
le
to
y
ield
a
5
0
%
h
ig
h
er
o
u
tp
u
t
to
r
q
u
e
th
an
co
n
v
e
n
tio
n
al
w
i
n
d
in
g
s
[
4
1
]
.
B
y
u
s
in
g
s
m
aller
o
u
ter
d
ia
m
eter
co
p
p
er
w
ir
es
f
o
r
to
r
o
id
al
w
in
d
i
n
g
s
,
t
h
e
d
ec
r
ea
s
e
i
n
w
ir
e
cr
o
s
s
-
s
ec
tio
n
al
ar
ea
w
ill
s
i
g
n
i
f
ica
n
tl
y
in
cr
ea
s
e
t
h
e
co
p
p
er
lo
s
s
es,
b
u
t
h
o
w
e
v
er
s
til
l
p
r
o
v
id
e
an
in
c
r
ea
s
ed
in
to
r
q
u
e
o
u
tp
u
t,
co
n
cl
u
d
in
g
t
h
at
to
r
o
id
al
w
i
n
d
i
n
g
s
d
is
p
la
y
ed
co
m
p
etiti
v
e
ad
v
an
ta
g
es a
g
ain
s
t c
o
n
v
en
ti
o
n
al
w
in
d
i
n
g
s
.
T
h
e
n
u
m
b
er
o
f
t
u
r
n
s
i
n
s
tato
r
w
i
n
d
i
n
g
s
w
ill
af
f
ec
t
th
e
m
a
g
n
etic
f
ie
ld
in
te
n
s
it
y
,
H.
Hen
ce
,
d
ec
r
ea
s
in
g
th
e
n
u
m
b
er
o
f
th
e
tu
r
n
s
co
n
tr
i
b
u
tes to
a
lo
w
er
m
a
g
n
etic
f
iel
d
in
te
n
s
it
y
a
n
d
r
es
u
lts
in
lo
w
e
r
to
r
q
u
e
v
al
u
es [
4
2
]
.
Ho
w
e
v
er
,
m
o
r
e
w
in
d
i
n
g
tu
r
n
s
p
r
o
v
id
e
m
o
r
e
r
esis
ta
n
ce
.
At
p
r
o
lo
n
g
ed
o
p
er
atio
n
s
o
f
SR
A
,
t
h
e
i
n
cr
ea
s
e
in
n
u
m
b
er
o
f
s
er
ies
tu
r
n
s
ca
u
s
es
a
d
ec
r
ea
s
e
in
ef
f
icie
n
c
y
at
h
i
g
h
r
o
tatio
n
al
s
p
ee
d
d
u
e
to
t
h
e
s
ig
n
if
ican
t
in
cr
ea
s
e
in
co
p
p
er
lo
s
s
[
4
3
]
.
T
ab
le
3
s
h
o
w
s
t
h
e
tes
t r
esu
lt
s
f
o
r
t
w
o
S
R
As
w
it
h
d
if
f
er
en
t
n
u
m
b
er
o
f
t
u
r
n
s
at
6
0
0
0
r
p
m
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
PEDS
I
SS
N:
2
0
8
8
-
8
694
R
o
ta
r
y
S
w
itch
ed
R
elu
cta
n
ce
A
ctu
a
to
r
:
A
R
ev
iew
o
n
Desig
n
Op
timiz
a
tio
n
a
n
d
its
C
o
n
tr
o
l Meth
o
d
s
(
S
.
P
.
Tee)
1093
T
ab
le
3.
C
o
m
p
ar
is
o
n
o
f
T
est R
es
u
lts
f
o
r
T
w
o
Di
f
f
er
en
t S
R
AS a
t 6
0
0
0
R
P
M
[
4
3
]
S
R
A
1
S
R
A
2
N
u
mb
e
r
o
f
se
r
i
e
s t
u
r
n
s
13
17
W
i
n
d
i
n
g
r
e
si
st
a
n
c
e
(
Ω
)
0
.
0
5
4
0
.
1
0
3
D
C
si
d
e
v
o
l
t
a
g
e
(
V
)
5
0
0
5
0
0
S
h
a
f
t
o
u
t
p
u
t
(
k
W
)
4
7
.
8
4
6
.
9
T
o
r
q
u
e
(
N
m)
7
4
.
8
7
4
.
6
R
M
S
c
u
r
r
e
n
t
(
A
)
6
8
.
8
8
0
.
3
C
o
p
p
e
r
l
o
ss (W
)
9
1
8
2
2
6
7
Ef
f
i
c
i
e
n
c
y
(
%)
9
2
.
9
9
1
.
3
A
t
h
i
g
h
s
p
ee
d
o
p
er
atio
n
s
o
f
SR
A
w
it
h
g
r
ea
ter
n
u
m
b
er
o
f
w
i
n
d
i
n
g
t
u
r
n
s
,
th
e
b
u
i
ld
-
u
p
in
b
ac
k
elec
tr
o
m
o
tiv
e
f
o
r
ce
r
es
u
lt
s
i
n
th
e
r
ed
u
ct
io
n
o
f
ac
t
u
ato
r
o
u
tp
u
t
p
o
w
er
an
d
t
h
e
ac
tu
ato
r
e
f
f
i
cien
c
y
w
ill
d
ec
r
ea
s
e
to
o
.
T
o
r
o
id
al
w
in
d
i
n
g
is
a
m
o
r
e
ef
f
ec
ti
v
e
w
i
n
d
in
g
m
et
h
o
d
th
an
co
n
v
e
n
tio
n
al
ap
p
r
o
ac
h
b
ec
au
s
e
it
p
r
o
v
id
es
b
ett
er
th
er
m
al
d
i
s
p
er
s
io
n
a
n
d
b
etter
to
r
q
u
e
p
er
f
o
r
m
a
n
ce
.
W
ith
ea
c
h
in
cr
ea
s
in
g
n
u
m
b
er
o
f
w
i
n
d
i
n
g
t
u
r
n
s
,
u
p
t
o
ev
en
1
2
0
tu
r
n
s
[
2
7
]
,
th
e
m
a
g
n
et
ic
f
ield
in
ten
s
it
y
w
ill
in
c
r
ea
s
e
co
r
r
esp
o
n
d
in
g
l
y
,
h
e
n
ce
p
r
o
d
u
cin
g
a
lar
g
er
to
r
q
u
e
o
u
tp
u
t f
o
r
S
R
A
.
3.
F
I
NI
T
E
E
L
E
M
E
NT
M
E
T
H
O
D
(
F
E
M
)
ANALYSI
S
T
h
e
f
in
ite
ele
m
e
n
t
m
et
h
o
d
(
FEM
)
is
a
co
m
p
u
ter
-
b
ased
n
u
m
er
ical
tech
n
iq
u
e
u
s
ed
to
d
eter
m
in
e
ap
p
r
o
x
im
a
te
s
o
l
u
tio
n
s
to
b
o
u
n
d
ar
y
v
al
u
e
p
r
o
b
le
m
s
f
o
r
p
ar
tial
d
if
f
er
en
t
ial
eq
u
a
tio
n
s
.
I
t
b
asi
ca
ll
y
b
r
ea
k
s
d
o
wn
a
lar
g
e
co
m
p
lex
p
r
o
b
le
m
i
n
t
o
s
m
all
er
s
i
m
p
ler
eq
u
at
io
n
s
c
alled
f
i
n
ite
ele
m
en
ts
.
T
h
en
it
s
o
lv
es
t
h
e
s
e
s
m
al
l
eq
u
atio
n
s
an
d
r
ea
s
s
e
m
b
les
th
e
m
i
n
to
t
h
e
lar
g
e
s
y
s
te
m
t
h
at
m
o
d
el
s
t
h
e
o
r
ig
in
al
p
r
o
b
lem
.
T
h
is
m
et
h
o
d
is
o
f
te
n
p
r
ac
ticed
in
en
g
in
ee
r
i
n
g
f
ield
to
s
tu
d
y
s
tr
u
ctu
r
e
s
an
d
co
m
p
o
n
en
t
s
u
n
d
er
v
ar
i
o
u
s
co
n
d
itio
n
s
.
FEM
is
u
s
ed
to
au
g
m
e
n
t e
x
p
er
i
m
e
n
tal
test
in
g
b
ef
o
r
e
p
r
o
to
ty
p
in
g
is
ca
r
r
ied
o
u
t [
4
4
]
.
FEM
is
u
s
ed
to
s
tu
d
y
n
e
w
S
R
A
r
o
to
r
d
esig
n
th
a
t
co
n
s
is
t
s
o
f
n
o
tc
h
ed
teeth
o
n
t
h
e
to
r
q
u
e
r
ip
p
le
ef
f
ec
t
[
4
5
]
.
T
h
e
r
o
t
o
r
d
esig
n
is
v
ar
ied
b
y
its
n
o
tch
w
id
t
h
a
n
d
p
o
s
itio
n
af
ter
s
t
u
d
y
in
g
th
e
f
lo
w
o
f
f
l
u
x
.
T
h
e
p
r
o
p
o
s
ed
d
esig
n
is
ab
le
to
r
e
d
u
ce
a
m
a
x
i
m
u
m
to
r
q
u
e
r
ip
p
le
o
f
4
.
4
%.
Fig
u
r
e
9
s
h
o
w
s
t
h
e
FEM
m
o
d
el
w
it
h
n
o
tch
ed
teet
h
r
o
to
r
o
f
d
if
f
er
en
t
w
id
t
h
.
Fig
u
r
e
9
.
Desig
n
o
f
r
o
to
r
w
it
h
d
if
f
er
e
n
t d
i
m
e
n
s
io
n
s
o
f
n
o
tc
h
e
d
teeth
[
4
5
]
Ma
n
u
a
l
ca
lc
u
latio
n
s
ca
n
b
e
c
ar
r
ied
o
u
t
to
d
eter
m
in
e
th
e
p
er
m
ea
n
ce
in
SR
A
[
4
6
]
,
h
o
w
e
v
er
,
FEM
an
al
y
s
is
ca
n
b
e
u
s
ed
to
s
i
m
p
l
if
y
t
h
e
s
tu
d
y
o
f
air
g
ap
p
er
m
ea
n
ce
a
n
d
f
lu
x
l
in
k
a
g
es
o
f
S
R
A
i
n
d
etai
l
s
[
4
7
]
,
in
cl
u
d
in
g
m
u
t
u
al
co
u
p
lin
g
a
n
d
s
atu
r
atio
n
[
4
8
]
.
Ma
n
u
al
an
a
l
y
s
e
s
ar
e
m
ad
e,
b
e
f
o
r
e
v
er
i
f
y
i
n
g
t
h
e
ca
lc
u
latio
n
s
u
s
i
n
g
FEM
an
al
y
s
is
.
Su
c
h
a
n
al
y
s
i
s
lead
s
to
n
e
w
d
i
s
co
v
e
r
y
s
u
ch
as
th
e
s
el
f
-
f
lu
x
l
in
k
a
g
e
a
n
d
m
u
t
u
al
f
l
u
x
lin
k
ag
e
in
t
h
e
t
w
o
c
h
a
n
n
el
s
o
f
th
e
s
a
m
e
p
h
a
s
e
ar
e
n
o
t
t
h
e
s
a
m
e.
Nei
g
h
b
o
r
in
g
ch
a
n
n
els
e
x
e
r
t
m
u
t
u
al
co
u
p
li
n
g
o
f
al
m
o
s
t
eq
u
al
m
a
g
n
itu
d
e
b
u
t
i
n
d
i
f
f
er
en
t
d
ir
ec
tio
n
s
.
Fi
g
u
r
e
1
0
s
h
o
w
s
t
h
e
FEM
a
n
al
y
s
is
o
f
m
a
g
n
e
tic
f
l
u
x
d
is
tr
ib
u
tio
n
o
f
a
d
u
al
-
c
h
a
n
n
e
l SR
A
at
ali
g
n
ed
(
0
°)
p
o
s
itio
n
w
it
h
s
in
g
le
a
n
d
b
o
th
ch
an
n
el
s
ex
cited
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
694
IJ
PEDS
Vo
l.
8
,
No
.
3
,
Sep
te
m
b
er
2
0
1
7
:
1
0
8
7
–
1
1
0
0
1094
(
a
)
(
b
)
Fig
u
r
e
1
0
.
Ma
g
n
etic
f
l
u
x
d
is
tr
ib
u
tio
n
o
f
d
u
al
-
c
h
a
n
n
e
l SR
A
(
a)
o
n
e
ch
an
n
el
ex
c
ited
(
b
)
b
o
t
h
ch
a
n
n
e
ls
e
x
cited
[
4
8
]
R
esear
ch
er
s
also
ap
p
lied
FE
M
an
al
y
s
is
to
s
tu
d
y
SR
A
v
ar
iatio
n
s
s
u
ch
a
s
r
o
to
r
ec
ce
n
tr
icit
y
to
d
eter
m
in
e
its
i
m
p
ac
t
o
n
p
o
w
e
r
lo
s
s
es
[
4
9
]
,
to
r
q
u
e
an
d
f
l
u
x
d
en
s
it
y
[
5
0
]
,
[
5
1
]
.
T
h
ese
lo
s
s
es
in
c
lu
d
ed
o
h
m
ic
lo
s
s
es,
h
y
s
ter
e
s
is
lo
s
s
e
s
,
ed
d
y
-
c
u
r
r
en
t
lo
s
s
e
s
a
n
d
ir
o
n
lo
s
s
e
s
.
F
u
r
th
er
s
t
u
d
ies
in
c
lu
d
ed
t
h
e
r
ed
u
ctio
n
o
f
r
o
to
r
ec
ce
n
tr
icit
y
ef
f
ec
t
s
u
s
i
n
g
w
in
d
in
g
m
et
h
o
d
s
[
5
2
]
.
A
w
i
n
d
in
g
m
et
h
o
d
w
h
ic
h
u
tili
ze
s
t
w
o
p
ar
allel
b
r
an
ch
es
w
it
h
n
eig
h
b
o
r
in
g
co
ils
in
s
er
ie
s
an
d
an
eq
u
alize
r
is
f
o
u
n
d
to
r
ed
u
ce
th
e
u
n
b
ala
n
ce
d
m
a
g
n
etic
f
o
r
ce
s
(
UM
F)
ef
f
ec
tiv
e
l
y
.
Fi
g
u
r
e
1
1
s
h
o
w
s
h
y
s
ter
esi
s
an
d
ed
d
y
cu
r
r
en
t
lo
s
s
es
i
n
r
o
to
r
an
d
s
tato
r
w
i
th
d
y
n
a
m
ic
ec
ce
n
tr
icit
y
(
DE
)
an
d
s
tatic
ec
ce
n
tr
icit
y
(
S
E
)
.
Fig
u
r
e
1
1
.
L
o
s
s
es i
n
S
R
A
w
it
h
DE
an
d
SE,
h
y
s
ter
e
s
is
lo
s
s
i
n
(
a)
r
o
to
r
(
b
)
s
tato
r
,
ed
d
y
cu
r
r
en
t lo
s
s
i
n
(
c)
r
o
to
r
(
d
)
s
tato
r
[
4
9
]
T
h
e
g
eo
m
etr
ical
p
ar
a
m
eter
s
o
f
SR
A
s
u
ch
as
in
ter
n
al
d
ia
m
ete
r
o
f
s
tato
r
,
r
o
to
r
p
o
le
b
r
ea
d
th
an
d
o
th
er
s
ar
e
s
tu
d
ied
th
r
o
u
g
h
FEM
[
5
3
]
.
T
h
e
to
r
q
u
e
ch
ar
ac
ter
is
tic
s
a
r
e
co
m
p
ar
ed
s
o
th
at
f
u
t
u
r
e
d
ev
elo
p
m
e
n
t
o
f
SR
A
d
esig
n
s
ca
n
b
e
o
p
ti
m
ized
to
p
r
o
d
u
ce
th
e
b
est
p
er
f
o
r
m
an
ce
.
T
h
e
s
h
ap
e
o
f
r
o
to
r
co
r
e
co
n
tr
ib
u
tes
s
ig
n
i
f
ica
n
tl
y
to
th
e
av
er
ag
e
to
r
q
u
e
an
d
to
r
q
u
e
r
ip
p
le
ef
f
ec
t.
T
h
e
b
r
ea
d
th
o
f
s
tato
r
p
o
le
im
p
ac
ts
g
r
ea
tl
y
th
e
s
h
ap
e
o
f
o
u
tp
u
t
to
r
q
u
e
ag
ain
s
t th
e
r
o
to
r
an
g
u
la
r
p
o
s
itio
n
.
T
h
r
o
u
g
h
FEM
an
al
y
s
is
,
s
e
v
er
al
p
ar
am
e
ter
s
ar
e
o
p
ti
m
ized
i
n
a
6
/4
SR
A
s
u
ch
as
w
i
n
d
i
n
g
tu
r
n
s
,
air
g
ap
th
ic
k
n
es
s
an
d
s
p
ec
i
f
ic
d
i
m
en
s
io
n
s
o
f
th
e
r
o
to
r
an
d
s
ta
to
r
[
3
1
]
-
[
3
2
]
.
T
h
e
r
o
to
r
an
d
s
tato
r
ar
c
an
g
les
ar
e
also
o
p
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.
Evaluation Warning : The document was created with Spire.PDF for Python.