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d
in
g
t
h
e
m
ai
n
id
ea
s
o
f
E
G
v
o
lta
g
e
s
tab
il
izatio
n
m
et
h
o
d
th
at
w
e
u
s
ed
.
T
o
im
p
r
o
v
e
h
ea
t
d
is
s
ip
atio
n
ef
f
icien
c
y
,
w
e
h
av
e
d
ev
elo
p
e
d
a
n
e
w
co
o
lin
g
s
y
s
te
m
al
s
o
d
escr
ib
ed
in
th
is
p
ap
er
.
T
h
e
ad
v
an
tag
e
s
o
f
t
h
is
co
o
lin
g
s
y
s
te
m
in
c
lu
d
e
t
h
e
f
ac
t
th
at
E
G
is
m
ad
e
w
it
h
a
d
r
y
,
u
n
co
o
led
r
o
to
r
.
T
h
is
eli
m
i
n
ate
d
ad
d
itio
n
al
p
u
m
p
s
an
d
s
i
g
n
if
ica
n
tl
y
r
ed
u
ce
d
C
SD
s
ize.
A
cc
o
r
d
in
g
to
t
h
e
r
esu
lt
s
o
f
o
u
r
s
t
u
d
y
,
w
e
m
ad
e
a
f
u
ll
ca
p
ac
it
y
ex
p
er
i
m
e
n
tal
la
y
o
u
t a
l
s
o
d
escr
ib
ed
in
th
is
p
ap
er
.
2.
RE
Q
UIR
E
M
E
NT
S F
O
R
E
G
AND
E
G
T
O
P
O
L
O
G
Y
S
E
L
E
CT
I
O
N
Sp
ec
if
icatio
n
s
o
f
t
h
e
d
ev
elo
p
ed
E
G
f
o
r
a
d
v
an
ce
d
A
/
C
w
i
th
C
S
D,
w
er
e
g
i
v
e
n
b
y
o
u
r
in
d
u
s
tr
ial
p
ar
tn
er
.
T
h
e
m
ai
n
o
n
es a
r
e:
1.
R
ated
p
o
w
er
o
f
E
G
–
1
0
0
k
VA
;
2.
R
ated
v
o
lta
g
e
–
1
1
5
/2
0
0
V;
3.
T
h
e
n
u
m
b
er
o
f
p
h
a
s
es
–
3;
4.
No
m
i
n
al
f
r
eq
u
e
n
c
y
o
f
t
h
e
alt
er
n
atin
g
c
u
r
r
en
t
–
4
0
0
Hz
at
a
n
o
m
i
n
al
E
G
s
h
a
f
t
r
o
ta
tio
n
al
f
r
eq
u
e
n
c
y
o
f
2
4
,
0
0
0
r
p
m
;
5.
E
G
o
p
er
atio
n
al
lo
ad
: 1
0
0
k
VA.
6.
EG ove
rl
o
ad
s
:
7.
L
o
n
g
-
ter
m
o
p
er
atin
g
p
o
w
er
o
f
1
5
0
k
VA
f
o
r
n
o
t
m
o
r
e
t
h
an
5
m
i
n
u
te
s
;
8.
Ov
er
lo
ad
ca
p
ac
it
y
o
f
2
0
0
% o
f
th
e
g
e
n
er
ato
r
r
ated
p
o
w
er
o
f
2
0
0
k
VA
f
o
r
5
s
ec
o
n
d
s
.
T
h
e
in
d
u
s
tr
ial
p
ar
tn
er
h
as
al
s
o
e
s
tab
lis
h
ed
v
er
y
s
tr
ict
li
m
i
t
s
o
n
th
e
len
g
t
h
:
th
e
to
tal
le
n
g
th
o
f
E
G
(
tak
in
g
in
to
ac
co
u
n
t
f
r
o
n
tal
p
ar
ts
)
w
as
n
o
t
to
b
e
g
r
ea
ter
t
h
a
n
1
4
5
m
m
,
w
e
ig
h
t
a
n
d
o
v
er
al
l
d
i
m
e
n
s
io
n
s
o
f
E
G
to
g
eth
er
w
it
h
t
h
e
co
n
tr
o
l
s
y
s
t
e
m
–
n
o
t
m
o
r
e
t
h
a
n
3
5
k
g
.
W
ith
a
ll
o
f
t
h
i
s
,
E
G
a
n
d
it
s
co
n
t
r
o
l
s
y
s
te
m
w
er
e
to
en
s
u
r
e
q
u
alit
y
o
f
t
h
e
o
u
tp
u
t p
o
w
er
w
it
h
i
n
MI
L
ST
D
7
0
4
I
E
.
Fro
m
t
h
e
a
n
al
y
s
i
s
o
f
p
u
b
licat
io
n
s
,
a
s
w
el
l
as
f
r
o
m
p
r
ac
tica
l
ex
p
er
ien
ce
o
f
E
G
d
esi
g
n
i
n
g
,
w
e
h
av
e
f
o
u
n
d
th
at
th
e
o
n
l
y
E
G
t
y
p
e
ab
le
to
p
r
o
v
id
e
th
ese
ch
ar
ac
ter
is
tics
is
E
G
w
it
h
p
er
m
a
n
e
n
t
m
ag
n
et
s
(
P
M)
.
A
t
th
e
s
a
m
e
t
i
m
e
to
r
ed
u
ce
t
h
e
o
v
er
al
l d
i
m
en
s
io
n
s
o
f
E
G
w
i
th
P
M,
i
t is ap
p
r
o
p
r
iate
to
u
s
e
th
e
to
o
th
w
i
n
d
in
g
[
1
3
-
1
5
]
.
A
t
t
h
e
s
a
m
e
ti
m
e
th
e
u
s
e
o
f
t
o
o
th
w
i
n
d
in
g
r
es
u
lts
i
n
s
i
g
n
i
f
i
ca
n
t
h
ar
m
o
n
ic
d
is
to
r
tio
n
o
f
th
e
o
u
tp
u
t
v
o
lta
g
e
o
f
E
G
d
u
e
to
s
p
atial
h
ar
m
o
n
ics
o
f
MM
F.
T
o
r
ed
u
ce
th
ese
d
is
to
r
tio
n
s
a
n
d
E
G
o
u
tp
u
t
p
o
w
er
c
o
m
p
lia
n
ce
w
i
th
th
e
r
eq
u
ir
e
m
en
ts
o
f
MI
L
ST
D
7
0
4
I
E
,
a
f
r
eq
u
en
c
y
co
n
v
er
ter
at
f
u
l
l
p
o
w
er
eq
u
al
to
E
G
p
o
w
er
is
u
s
ed
to
g
et
h
er
w
it
h
E
G
w
it
h
to
o
th
w
in
d
i
n
g
.
B
u
t
ev
en
t
h
e
u
s
e
o
f
th
e
m
o
s
t
ad
v
an
ce
d
ele
m
e
n
t
b
ase
d
o
es
n
o
t
allo
w
to
cr
ea
te
a
r
ec
tif
ier
o
r
f
r
eq
u
e
n
c
y
co
n
v
er
t
er
w
it
h
a
p
o
w
er
o
f
1
0
0
k
W
an
d
a
w
ei
g
h
t
o
f
les
s
t
h
a
n
2
2
-
2
5
k
g
[
1
6
]
.
Giv
en
th
a
t
o
u
r
in
d
u
s
tr
ial
p
ar
tn
er
h
as
esta
b
lis
h
ed
t
h
e
r
eq
u
ir
e
m
e
n
ts
to
E
G
w
ei
g
h
t
w
it
h
t
h
e
co
n
tr
o
l
s
y
s
te
m
w
a
s
n
o
t
m
o
r
e
th
an
3
5
k
g
,
an
d
E
G
r
o
to
r
s
p
ee
d
–
n
o
t
m
o
r
e
th
an
2
4
,
0
0
0
r
p
m
,
it
is
ev
id
en
t
t
h
at
th
e
u
s
e
o
f
f
r
eq
u
en
c
y
co
n
v
er
ter
an
d
E
G
w
i
th
to
o
th
w
i
n
d
i
n
g
i
n
th
is
ca
s
e
is
n
o
t
p
o
s
s
ib
le.
A
t
a
w
ei
g
h
t
o
f
f
r
eq
u
en
c
y
in
v
er
ter
o
f
2
5
k
g
,
E
G
h
ad
t
o
w
ei
g
h
n
o
t
m
o
r
e
th
an
1
0
k
g
an
d
p
r
o
v
id
e
p
o
w
er
o
f
1
0
0
k
W
at
a
s
p
ee
d
o
f
2
4
,
0
0
0
r
p
m
,
an
d
o
v
er
lo
ad
ca
p
ac
ity
o
f
1
5
0
k
W
also
at
2
4
,
0
0
0
r
p
m
.
A
t th
is
s
ta
g
e
o
f
d
ev
elo
p
m
en
t,
p
r
ac
tical
i
m
p
le
m
e
n
tat
io
n
o
f
t
h
es
e
p
ar
a
m
eter
s
is
n
o
t
p
o
s
s
ib
le.
T
h
er
ef
o
r
e,
w
e
h
a
v
e
c
h
o
s
e
n
to
p
o
lo
g
y
o
f
E
G
w
i
th
P
M
w
it
h
d
i
s
tr
ib
u
ted
w
i
n
d
in
g
a
n
d
t
w
o
-
p
o
le
m
ag
n
etic
s
y
s
te
m
,
Fig
u
r
e
1
,
wh
ich
m
ad
e
it
p
o
s
s
ib
le
to
i
m
p
r
o
v
e
t
h
e
o
u
tp
u
t
v
o
ltag
e
q
u
alit
y
.
I
n
o
r
d
er
to
s
tab
ilize
E
G
o
u
tp
u
t
v
o
lta
g
e,
w
e
u
s
ed
n
o
t
a
s
er
ial
f
r
eq
u
en
c
y
co
n
v
er
te
r
at
f
u
ll
p
o
w
er
,
b
u
t
p
ar
allel
o
n
e
at
p
o
w
er
o
f
n
o
t
m
o
r
e
th
a
n
4
0
%
o
f
t
h
e
r
ated
p
o
w
er
,
Fi
g
u
r
e
2
.
T
h
is
co
n
v
er
te
r
(
d
ig
ital
m
o
d
u
le
(
DM
)
)
is
d
e
s
ig
n
ed
to
s
tab
ilize
v
o
ltag
e
w
i
th
t
h
e
ch
a
n
g
e
in
t
h
e
lo
ad
to
E
G
at
a
co
n
s
tan
t
r
o
to
r
s
p
ee
d
.
P
er
m
an
e
n
t
f
r
eq
u
en
c
y
is
p
r
o
v
id
ed
b
y
C
SD.
T
h
e
ess
en
ce
o
f
th
e
co
n
tr
o
l
m
et
h
o
d
u
s
ed
an
d
E
G
o
u
t
p
u
t
v
o
lta
g
e
s
tab
ilizatio
n
is
in
f
ac
t
th
a
t
v
o
lta
g
e
is
co
n
tr
o
lled
b
y
t
h
e
m
ag
n
etic
f
ie
ld
o
f
E
G
r
esp
o
n
s
e
an
c
h
o
r
s
b
y
in
d
u
cti
v
e
o
r
ca
p
ac
itiv
e
c
u
r
r
en
t
g
en
er
ated
b
y
DM
.
DM
is
co
n
n
ec
ted
p
ar
allel
to
th
e
lo
ad
u
p
s
tr
ea
m
E
G
f
ee
d
er
an
d
co
n
s
u
m
e
s
cu
r
r
en
t
s
h
i
f
ted
r
elati
v
e
to
v
o
ltag
e
E
G
s
tr
ictl
y
to
±
9
0
°.
T
h
u
s
DM
i
n
ten
s
i
f
ie
s
t
h
e
m
a
g
n
et
ic
f
ield
o
f
E
G
r
e
s
p
o
n
s
e
a
n
c
h
o
r
s
an
d
r
ed
u
ce
s
it
s
v
o
ltag
e
(
in
d
u
cti
v
e
c
u
r
r
en
t)
,
o
r
lo
w
er
s
th
e
m
ag
n
etic
f
ield
o
f
ar
m
at
u
r
e
r
ea
ctio
n
an
d
in
cr
ea
s
es
E
G
v
o
ltag
e
(
ca
p
ac
iti
v
e
cu
r
r
en
t)
.
I
n
th
i
s
ca
s
e,
DM
c
u
r
r
en
t
is
r
ea
cti
v
e
f
o
r
E
G
a
n
d
d
o
es
n
o
t
g
e
n
er
ate
ad
d
itio
n
a
l
h
ea
t
lo
s
s
es
in
E
G
w
i
n
d
i
n
g
a
n
d
m
ec
h
an
ica
l lo
ad
o
n
th
e
s
h
a
f
t.
T
o
p
r
o
tect
ag
ain
s
t
s
h
o
r
t
cir
cu
its
,
E
G
p
h
ases
ar
e
co
n
n
e
cted
to
s
tar
co
n
f
i
g
u
r
atio
n
t
h
r
o
u
g
h
b
i
-
d
ir
ec
tio
n
al
s
e
m
ico
n
d
u
cto
r
s
w
i
tch
es
th
at
o
p
en
i
n
s
h
o
r
t
-
cir
c
u
it
(
SC
)
,
th
er
eb
y
is
o
lati
n
g
t
h
e
p
o
in
t
o
f
s
h
o
r
t
cir
cu
i
t.
T
h
e
s
o
lu
tio
n
u
s
ed
is
s
i
m
ilar
t
o
th
e
s
o
l
u
tio
n
p
r
o
p
o
s
ed
b
y
H
o
n
e
y
w
ell
I
n
ter
n
atio
n
al
[
1
7
]
,
b
u
t
o
u
r
s
o
lu
t
io
n
u
s
e
s
n
e
w
alg
o
r
it
h
m
s
to
i
m
p
r
o
v
e
p
e
r
f
o
r
m
an
ce
o
f
th
e
w
h
o
le
p
r
o
tectio
n
s
y
s
te
m
.
I
t
w
o
u
l
d
b
e
m
o
r
e
ef
f
ic
ien
t
to
u
s
e
a
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l.
7
,
No
.
5
,
Octo
b
er
2
0
1
7
:
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m
ag
m
is
th
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m
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ets i
s
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ak
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to
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g
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I
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2344
4.
E
G
RO
T
O
R
DYNA
M
I
CS A
NALYS
I
S
A
r
o
to
r
d
ev
elo
p
ed
at
t
h
e
s
ta
g
e
o
f
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tr
o
m
a
g
n
e
tic
ca
lc
u
la
tio
n
is
co
n
s
id
er
ed
w
h
e
n
ca
lc
u
lati
n
g
t
h
e
cr
itical
r
o
to
r
s
p
ee
d
.
T
h
e
p
r
o
b
l
e
m
o
f
d
y
n
a
m
ics a
n
al
y
s
i
s
w
as
s
o
lv
ed
u
s
in
g
An
s
y
s
s
o
f
t
w
ar
e
p
ac
k
ag
e,
Fi
g
u
r
e
7
.
As
a
r
es
u
lt
o
f
t
h
e
ca
lc
u
latio
n
(
Fig
u
r
e
7
)
,
it
w
as
f
o
u
n
d
t
h
at
t
h
e
m
ax
i
m
u
m
later
al
f
o
r
ce
ac
ti
n
g
o
n
t
h
e
r
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to
r
is
2
,
6
5
2
N,
th
e
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ir
s
t
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l
s
p
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at
9
8
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0
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is
m
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h
ig
h
er
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r
ated
s
p
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d
.
T
h
is
p
r
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v
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p
er
f
o
r
m
a
n
ce
o
f
t
h
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s
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ted
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s
tr
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cti
v
e
s
c
h
e
m
e
o
f
th
e
r
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to
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.
Fig
u
r
e
6
.
C
alcu
lat
io
n
s
m
ad
e
i
n
So
lid
W
o
r
k
s
s
o
f
t
w
ar
e
p
ac
k
ag
e
Fig
u
r
e
7
.
Def
lectio
n
o
f
th
e
m
a
g
n
eto
elec
tr
ic
g
en
er
ato
r
r
o
to
r
at
th
e
f
ir
s
t c
r
itical
r
o
tatio
n
s
p
ee
d
5.
CALCU
L
A
T
I
O
N
O
F
L
O
S
S
E
S AN
D
E
VA
L
UA
T
I
O
N
O
F
E
G
E
F
F
I
CI
E
NC
Y,
AND
CO
O
L
I
N
G
SYST
E
M
CALCUL
AT
I
O
N
E
G
lo
s
s
ca
lc
u
latio
n
is
an
i
m
p
o
r
tan
t
s
tep
in
t
h
e
d
esi
g
n
.
D
u
e
to
th
e
li
m
ited
E
G
v
o
l
u
m
e,
to
t
al
lo
s
s
e
s
i
n
th
e
ac
ti
v
e
ele
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e
n
t
s
s
h
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u
ld
b
e
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a
s
ac
c
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r
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y
as
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o
s
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ib
le,
to
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n
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u
r
e
m
ax
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m
u
m
h
ea
t
d
is
s
ip
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n
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d
r
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o
f
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G.
Me
ch
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n
ical
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s
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G
ca
n
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e
d
eter
m
in
ed
ac
co
r
d
in
g
to
t
h
e
p
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d
u
r
e
g
iv
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n
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n
[
2
2
]
.
L
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I
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6.
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is
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h
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w
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in
F
ig
u
r
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o
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ir
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ilizati
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et
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ati
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Fig
u
r
e
9
.
B
lo
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d
iag
r
a
m
o
f
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co
n
tr
o
l
m
et
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d
Fig
u
r
e
1
0
.
Si
m
u
latio
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r
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lts
o
f
E
G
co
n
tr
o
l
p
r
o
ce
s
s
es
(
C
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c
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r
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en
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m
s
;
ME
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v
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g
e,
A
VS t,
m
s
; CM
c
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r
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en
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A
VS t,
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s
)
T
h
e
d
ev
elo
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ed
s
i
m
u
latio
n
m
o
d
el
co
n
s
is
t
s
o
f
s
e
v
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al
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n
its
:
a
lo
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it
(
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,
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t
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r
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R
eg
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d
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ato
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n
it
(
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n
er
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m
o
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is
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m
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le
m
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q
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o
r
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ates,
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d
allo
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s
i
m
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l
atin
g
o
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er
atio
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f
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G
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n
g
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ato
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o
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e
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ar
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d
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in
t
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s
f
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li
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o
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er
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.
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h
e
s
i
m
u
latio
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tak
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s
in
to
ac
co
u
n
t
E
G
w
it
h
t
h
e
f
o
llo
w
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n
g
n
u
m
er
ical
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ar
a
m
eter
s
:
s
p
ee
d
–
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,
0
0
0
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p
m
,
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ated
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,
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eq
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en
c
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f
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ated
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e
–
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n
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.
6
6
T
.
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s
a
r
e
s
u
l
t
o
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t
h
e
s
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m
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,
Fi
g
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r
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u
s
t
m
e
n
t
ch
ar
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ter
is
tic
o
f
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,
F
ig
u
r
e
1
1
.
T
h
e
an
al
y
s
is
o
f
s
i
m
u
lat
io
n
r
es
u
lts
Fi
g
u
r
e
1
0
s
h
o
w
s
t
h
a
t
th
e
p
r
o
p
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s
ed
E
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o
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co
n
tr
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l
an
d
s
tab
ilizati
o
n
m
eth
o
d
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f
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d
all
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o
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e
s
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m
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w
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ax
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m
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m
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r
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t
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o
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er
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w
h
en
th
e
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ad
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n
g
es
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m
t
w
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er
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g
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n
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is
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s
.
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n
t
h
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s
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s
e
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e
g
e
n
er
ato
r
v
o
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es 1
4
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V,
th
at
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in
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s
ed
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y
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1
.
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an
d
th
en
r
esto
r
ed
to
th
e
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o
m
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al
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al
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e.
Fig
u
r
e
1
1
.
E
G
ad
j
u
s
t
m
e
n
t c
h
a
r
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ter
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tics
(
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r
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t,
A
V
S M
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G
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r
r
en
t,
r
el.
u
n
it
s
)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l.
7
,
No
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5
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Octo
b
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–
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As
s
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Fig
u
r
e
1
1
,
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r
r
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h
e
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at
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g
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r
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0
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ad
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n
th
i
s
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s
e,
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g
e
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ato
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g
m
o
d
e,
D
M
cu
r
r
e
n
t
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s
b
eh
in
d
v
o
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g
e,
an
d
in
o
v
er
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o
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e
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it
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s
a
h
ea
d
b
y
9
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ich
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o
co
n
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ir
m
s
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o
f
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h
e
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r
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ed
v
o
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e
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n
tr
o
l
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.
7.
E
XP
E
R
I
M
E
NT
A
L
E
G
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AY
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UT
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ased
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n
th
e
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,
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y
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h
e
g
e
o
m
e
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ic
d
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m
e
n
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io
n
s
,
T
ab
le
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[1
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V
a
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De
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G
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st,
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,
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M
a
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M
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4
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.
[2
]
E.
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M
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Ha
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AS
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1
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1
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.
[4
]
K.
Ra
jas
h
e
k
a
ra
,
e
t
a
l.
,
“
H
y
b
rid
F
u
e
l
Ce
ll
P
o
w
e
r
in
A
ircra
f
rt
:
A
f
e
a
sib
il
it
y
stu
d
y
f
o
r
o
n
b
o
a
rd
p
o
w
e
r
g
e
n
e
ra
ti
o
n
u
sin
g
a
c
o
m
b
in
a
ti
o
n
o
f
so
li
d
o
x
id
e
f
u
e
l
c
e
ll
s
a
n
d
g
a
s
tu
rb
in
e
s,”
IEE
E
In
d
u
stry
Ap
p
l
ica
ti
o
n
M
a
g
a
zin
e
,
2
0
0
8
,
V
o
l
.
1
4
,
No
.
3
,
p
p
.
5
4
–
6
0
.
[5
]
X
in
Zh
a
o
,
e
t
a
l.
,
“
Re
v
iew
o
f
a
ircra
f
t
e
l
e
c
tri
c
p
o
w
e
r
s
y
ste
m
s
a
n
d
a
rc
h
it
e
c
tu
re
s,”
in
E
n
e
rg
y
Co
n
fer
e
n
c
e
(
ENE
RGY
CON),
IEE
E
In
ter
n
a
ti
o
n
a
l
,
2
0
1
4
,
p
p
.
9
4
9
–
9
5
3
.
[6
]
R.
I.
J
o
n
e
s
“
T
h
e
M
o
re
El
e
c
tri
c
A
ircr
a
f
t:
th
e
p
a
st
a
n
d
th
e
f
u
t
u
re
,
”
El
e
c
trica
l
M
a
c
h
i
n
e
s
a
n
d
S
y
ste
ms
fo
r
t
h
e
M
o
re
El
e
c
tric A
irc
ra
ft
,
1
9
9
9
,
p
p
.
1
/
1
-
1
/
4
.
[7
]
M
.
T
o
se
tt
i,
e
t
a
l.
,
“
Co
n
j
u
g
a
te
h
e
a
t
tran
sf
e
r
a
n
a
l
y
sis
o
f
in
teg
ra
ted
b
ru
sh
les
s
g
e
n
e
ra
to
rs
f
o
r
m
o
re
e
l
e
c
tri
c
e
n
g
in
e
s,”
5
th
A
n
n
u
a
l
IE
EE
En
e
rg
y
Co
n
v
e
rs
io
n
Co
n
g
re
ss
a
n
d
Ex
h
ib
i
ti
o
n
.
ECCE
2
0
1
3
,
De
n
v
e
r,
CO,
Un
it
e
d
S
tate
s,
1
5
S
e
p
tem
b
e
r
2
0
1
3
th
r
o
u
g
h
1
9
S
e
p
te
m
b
e
r
2
0
1
3
.
p
p
.
1
5
1
8
–
1
5
2
5
.
[8
]
R.
Bo
j
o
i,
e
t
a
l.
,
“
Co
n
tr
o
l
o
f
sh
a
f
t
-
li
n
e
-
e
m
b
e
d
d
e
d
m
u
lt
ip
h
a
se
sta
rte
r/g
e
n
e
ra
to
r
f
o
r
a
e
ro
-
e
n
g
in
e
,
”
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
I
n
d
u
stria
l
El
e
c
tro
n
ics
,
2
0
1
6
,
p
p
.
6
4
1
–
6
5
2
.
[9
]
A
.
Ca
v
a
g
n
in
o
,
e
t
a
l.
,
“
In
teg
ra
ted
g
e
n
e
ra
to
r
f
o
r
m
o
re
e
lec
tri
c
e
n
g
in
e
:
De
sig
n
a
n
d
tes
ti
n
g
o
f
a
sc
a
led
-
siz
e
p
ro
to
ty
p
e
,
”
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
In
d
u
stry
A
p
p
li
c
a
ti
o
n
s
,
2
0
1
3
,
Vo
l.
4
9
.
Iss
u
e
5
,
p
p
.
2
0
3
4
–
2
0
4
3
.
[1
0
]
P
.
A
ru
m
u
g
a
m
,
e
t
a
l.
,
“
P
e
rm
a
n
e
n
t
M
a
g
n
e
t
S
tarte
r
-
G
e
n
e
ra
to
r
f
o
r
A
i
rc
ra
f
t
A
p
p
li
c
a
ti
o
n
,
”
S
A
E
T
e
c
h
n
ic
a
l
Pa
p
e
r
2
0
1
4
-
01
-
2
1
5
7
,
2
0
1
4
.
DO
I:1
0
.
4
2
7
1
/
2
0
1
4
-
01
-
2
1
5
7
.
[1
1
]
E.
D.
G
a
n
e
v
,
“
Hig
h
-
p
e
r
f
o
r
m
a
n
c
e
e
lec
tri
c
d
riv
e
s
f
o
r
a
e
ro
sp
a
c
e
m
o
re
e
lec
tri
c
a
rc
h
it
e
c
tu
re
s
p
a
rt
I
-
El
e
c
tri
c
m
a
c
h
in
e
s,”
IEE
E
Po
we
r E
n
g
in
e
e
rin
g
S
o
c
iety
Ge
n
e
ra
l
M
e
e
ti
n
g
,
2
0
0
7
,
P
ES
4
2
7
5
3
4
5
.
[1
2
]
E.
G
a
n
e
v
,
“
Hig
h
-
Re
a
c
tan
c
e
P
e
rm
a
n
e
n
t
M
a
g
n
e
t
M
a
c
h
in
e
f
o
r
Hig
h
-
P
e
rf
o
rm
a
n
c
e
P
o
w
e
r
Ge
n
e
ra
ti
o
n
S
y
st
e
m
s,”
S
AE
T
e
c
h
n
ica
l
Pa
p
e
r 2
0
0
6
-
01
-
3
0
7
6
,
2
0
0
6
.
DO
I:1
0
.
4
2
7
1
/
2
0
0
6
-
01
-
3
0
7
6
.
[1
3
]
Die
ter
Ge
rli
n
g
a
n
d
M
o
h
a
m
m
e
d
A
ln
a
jj
a
r,
“
S
ix
-
P
h
a
se
El
e
c
tri
c
a
ll
y
Ex
c
it
e
d
S
y
n
c
h
ro
n
o
u
s
G
e
n
e
ra
to
r
fo
r
M
o
re
El
e
c
tri
c
A
ircr
a
f
t,
”
In
ter
n
a
ti
o
n
a
l
S
y
mp
o
si
u
m
o
n
Po
we
r
El
e
c
tro
n
ics
,
E
lec
trica
l
Dr
ive
s,
Au
to
ma
ti
o
n
a
n
d
M
o
ti
o
n
,
2
0
1
6
,
p
p
.
7
–
13.
[1
4
]
F
.
M
a
g
n
u
ss
e
n
,
a
n
d
C
h
.
S
a
d
a
ra
n
g
a
n
i,
“
W
in
d
in
g
f
a
c
to
rs
a
n
d
Jo
u
l
e
lo
ss
e
s
o
f
p
e
rm
a
n
e
n
t
m
a
g
n
e
t
m
a
c
h
in
e
s
w
it
h
c
o
n
c
e
n
trate
d
w
in
d
in
g
s,”
in
2
0
0
3
IEE
E
In
ter
n
a
t
io
n
a
l
El
e
c
tric
M
a
c
h
in
e
s
&
Dr
ive
s
Co
n
fer
e
n
c
e
(
IE
M
DC
2
0
0
3
)
,
0
1
-
0
4
.
0
6
,
M
a
d
is
o
n
,
W
isc
o
n
sin
,
USA
.
[1
5
]
G
u
ra
k
u
q
Da
ja
k
u
,
e
t
a
l.
,
“
Co
m
p
a
riso
n
o
f
Tw
o
F
S
CW
P
M
M
a
c
h
in
e
s
f
o
r
In
teg
ra
ted
T
ra
c
ti
o
n
M
o
to
r/
G
e
n
e
r
a
to
r,
”
in
2
0
1
5
IE
EE
I
n
ter
n
a
t
io
n
a
l
El
e
c
tric M
a
c
h
in
e
s
&
Dr
ive
s Co
n
fer
e
n
c
e
(
I
EM
DC)
,
p
p
.
1
8
7
–
1
9
4
.
[1
6
]
J.
-
P
.
Be
sn
a
rd
,
e
t
a
l.
,
“
E
lec
tri
c
a
l
ro
tati
n
g
m
a
c
h
in
e
s
a
n
d
p
o
w
e
r
e
lec
tro
n
ics
f
o
r
n
e
w
a
ircra
f
t
e
q
u
ip
m
e
n
t
sy
ste
m
s,”
ICAS
-
S
e
c
re
ta
ria
t
-
2
5
t
h
Co
n
g
re
ss
o
f
t
h
e
In
ter
n
a
ti
o
n
a
l
C
o
u
n
c
il
o
f
th
e
Aer
o
n
a
u
ti
c
a
l
S
c
ien
c
e
s
,
2
0
0
6
.
[1
7
]
Ev
g
e
n
i
G
a
n
e
v
,
e
t
a
l.
,
“
S
y
ste
m
a
n
d
m
e
th
o
d
f
o
r
fa
u
lt
p
ro
tec
ti
o
n
f
o
r
p
e
r
m
a
n
e
n
t
m
a
g
n
e
t
m
a
c
h
in
e
s,”
Pa
ten
t
US
7
2
7
6
8
7
1
B2
,
2
0
0
7
.
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