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e
n
u
m
b
e
r
,
p
itch
an
g
le,
a
n
d
b
lad
e
s
tr
u
ctu
r
al
ch
ar
ac
ter
is
tics
[
8
]
,
[
1
4
]
-
[
1
7
]
.
Pre
v
io
u
s
s
tu
d
ies
h
av
e
p
r
im
ar
i
ly
in
v
esti
g
ated
Dar
r
ieu
s
tu
r
b
i
n
e
p
er
f
o
r
m
an
ce
th
r
o
u
g
h
b
la
d
e
g
eo
m
etr
y
o
p
tim
izatio
n
,
co
m
p
u
tatio
n
al
f
lu
id
d
y
n
a
m
ics
(
C
FD)
,
ae
r
o
d
y
n
am
ic
m
o
d
elin
g
,
an
d
s
tr
u
ct
u
r
e
an
aly
s
is
[
8
]
,
[
1
4
]
-
[
1
7
]
.
T
h
ese
s
tu
d
ies
h
av
e
p
r
o
v
id
ed
v
alu
a
b
le
in
s
ig
h
t
in
to
th
e
ef
f
ec
ts
o
f
air
f
o
il
co
n
f
ig
u
r
atio
n
,
b
lad
e
s
h
ap
e,
a
n
d
o
p
er
atin
g
co
n
d
itio
n
s
o
n
ae
r
o
d
y
n
am
ic
p
er
f
o
r
m
an
ce
.
Ho
wev
e
r
,
co
m
p
ar
ativ
ely
less
atten
tio
n
h
as
b
ee
n
g
iv
e
n
to
th
e
ex
p
er
im
en
tal
ef
f
ec
t
o
f
b
l
ad
e
m
ater
ial
o
n
th
e
ac
tu
al
en
er
g
y
co
n
v
er
s
io
n
p
e
r
f
o
r
m
an
ce
o
f
th
e
s
m
all
s
ca
le
Der
r
iu
s
tu
r
b
i
n
es.
I
n
p
ar
ticu
lar
,
m
an
y
in
v
esti
g
atio
n
s
co
n
ce
r
n
i
n
g
m
ate
r
ials
p
r
o
p
er
ties
h
a
v
e
r
elied
o
n
n
u
m
er
ical
o
r
th
eo
r
etica
l
ap
p
r
o
ac
h
es,
w
h
ile
ex
p
er
im
e
n
tal
co
m
p
ar
is
o
n
b
etwe
en
m
ater
ials
with
s
u
b
s
tan
tially
d
if
f
er
en
t
d
en
s
ity
an
d
s
tiff
n
ess
u
n
d
er
id
en
tical
o
p
er
atin
g
c
o
n
d
itio
n
s
r
em
ain
lim
ited
.
T
h
is
cr
ea
tes
an
im
p
o
r
tan
t
r
esear
c
h
g
ap
b
ec
au
s
e
b
la
d
e
m
ater
ial
d
o
es
n
o
t
m
er
el
y
d
ete
r
m
in
e
s
tr
u
ctu
r
al
s
tr
en
g
th
,
it
also
in
f
lu
en
ce
s
r
o
t
o
r
m
ass
,
r
o
tatio
n
al
in
er
tia,
s
tar
tin
g
ch
a
r
ac
ter
is
tics
,
v
ib
r
atio
n
,
an
d
co
n
s
eq
u
en
tly
th
e
tu
r
b
i
n
e’
s
ab
ilit
y
to
ex
tr
ac
t
en
er
g
y
u
n
d
er
l
o
w
-
s
p
ee
d
co
n
d
itio
n
s
[
1
4
]
,
[
1
5
]
,
[
1
8
]
-
[
2
3
]
.
T
o
ad
d
r
ess
th
is
g
ap
,
t
h
e
p
r
esen
t
s
tu
d
y
e
x
p
er
im
e
n
tally
co
m
p
ar
es
two
b
la
d
e
m
ater
ials
,
ac
r
y
lic
an
d
zin
c,
wh
ile
m
ai
n
tain
in
g
th
e
s
am
e
ae
r
o
d
y
n
a
m
ic
co
n
f
ig
u
r
atio
n
.
Acr
y
lic
h
as
s
u
b
s
tan
tially
lo
wer
d
en
s
ity
th
an
zin
c,
wh
er
ea
s
zin
c
p
r
o
v
id
es
co
n
s
id
er
ab
ly
h
i
g
h
er
s
tiff
n
ess
.
T
h
ese
co
n
tr
ac
tin
g
p
r
o
p
e
r
ties
p
r
o
v
id
e
a
s
u
itab
le
b
asis
f
o
r
ex
p
e
r
im
en
tally
ev
al
u
atin
g
h
o
w
t
h
e
m
ass
an
d
m
ec
h
an
ical
ch
ar
ac
ter
is
tics
th
e
b
lad
e
in
f
lu
en
ce
tu
r
b
in
e
p
er
f
o
r
m
an
ce
.
B
o
th
b
lad
e
ty
p
e
s
wh
er
e
f
ab
r
icate
d
u
s
in
g
th
e
s
am
e
s
y
m
m
etr
ical
NC
A
0
0
1
8
air
f
o
il
p
r
o
f
ile
s
o
th
at
d
if
f
er
en
ce
s
co
u
ld
b
e
p
r
im
ar
ily
attr
ib
u
ted
to
b
lad
e
m
ater
ial
[
8
]
,
[
1
1
]
,
[
1
0
]
.
T
h
is
ex
p
er
im
en
ta
l d
esig
n
p
r
o
v
id
es a
m
o
r
e
d
ir
ec
t
co
m
p
a
r
is
o
n
th
a
n
s
im
u
latio
n
-
b
ased
s
tu
d
ies
b
ec
au
s
e
th
e
in
f
l
u
en
ce
o
f
m
ater
ial
p
r
o
p
e
r
ties
is
ev
alu
ated
th
r
o
u
g
h
th
e
ac
tu
al
m
ec
h
an
ical
an
d
elec
tr
ical
r
esp
o
n
s
e
o
f
th
e
t
u
r
b
in
e
.
T
h
e
o
b
jectiv
e
o
f
t
h
is
s
tu
d
y
is
th
er
ef
o
r
e
to
ex
p
er
im
en
tally
q
u
an
tify
th
e
ef
f
ec
t
o
f
b
lad
e
m
ate
r
ial
o
n
th
e
p
er
f
o
r
m
an
ce
o
f
a
th
r
ee
Dar
r
ieu
s
VAWT
o
p
er
atin
g
u
n
d
er
lo
w
-
s
p
ee
d
win
d
co
n
d
itio
n
s
.
T
h
e
in
v
esti
g
atio
n
ev
alu
ates
r
o
tatio
n
al
s
p
ee
d
,
t
o
r
q
u
e,
elec
tr
ical
o
u
t
p
u
t
p
o
w
er
,
p
o
wer
co
ef
f
icien
t
(
Cp
)
,
an
d
o
v
er
all
en
e
r
g
y
co
n
v
er
s
io
n
ef
f
icien
c
y
.
E
x
p
er
i
m
en
ts
wer
e
p
e
r
f
o
r
m
ed
at
a
c
o
n
tr
o
lled
win
d
s
p
ee
d
4
.
3
m
/s
,
with
a
b
lad
e
p
itch
an
g
le
o
f
3
2
°
an
d
m
ea
s
u
r
em
e
n
t d
is
tan
ce
o
f
1
0
cm
f
r
o
m
t
h
e
ai
r
f
lo
w
s
o
u
r
ce
.
E
ac
h
co
n
f
ig
u
r
atio
n
was te
s
ted
th
r
ee
tim
es
to
im
p
r
o
v
e
m
ea
s
u
r
em
en
t
co
n
s
is
ten
cy
an
d
r
e
d
u
ce
th
e
i
n
f
lu
en
ce
o
f
air
f
lo
w
f
lu
ctu
atio
n
s
an
d
ex
p
er
i
m
en
tal
u
n
ce
r
tain
ty
[
1
5
]
,
[
2
4
]
-
[
2
8
]
.
T
h
e
co
n
tr
i
b
u
tio
n
o
f
th
e
s
tu
d
y
is
th
e
ex
p
er
im
e
n
tal
v
alid
ati
o
n
o
f
th
e
r
o
le
o
f
b
lad
e
m
ate
r
ial
in
th
e
p
er
f
o
r
m
an
ce
o
f
s
m
all
-
s
ca
le
Dar
r
ieu
s
VAWT
u
n
d
er
lo
w
wi
n
d
s
p
ee
d
co
n
d
itio
n
s
.
B
y
co
m
p
ar
in
g
ac
r
y
lic
an
d
zin
c
b
lad
es
with
id
en
tical
a
er
o
d
y
n
am
ic
g
eo
m
etr
y
an
d
o
p
er
atin
g
co
n
d
itio
n
s
,
th
e
s
tu
d
y
d
is
tin
g
u
is
h
es
th
e
in
f
lu
en
ce
o
f
m
ate
r
ial
r
elate
d
c
h
ar
ac
ter
is
tics
f
r
o
m
th
at
o
f
b
la
d
e
g
eo
m
etr
y
.
T
h
e
r
esu
lts
ar
e
e
x
p
ec
ted
to
p
r
o
v
id
e
an
ex
p
er
im
e
n
tal
b
asis
f
o
r
f
u
tu
r
e
d
ev
el
o
p
m
en
t
o
f
lig
h
tweig
h
t
co
m
p
o
s
ite
b
lad
es
with
im
p
r
o
v
e
d
s
tiff
n
ess
to
m
ass
r
atio
s
an
d
p
o
ten
tially
en
h
an
ce
d
e
n
er
g
y
co
n
v
er
s
io
n
p
e
r
f
o
r
m
an
ce
[
1
3
]
,
[
1
5
]
,
[
2
0
]
,
[
2
9
]
.
2.
M
E
T
H
O
D
T
h
i
s
s
t
u
d
y
e
m
p
l
o
y
s
a
n
e
x
p
e
r
im
e
n
t
a
l
l
a
b
o
r
a
t
o
r
y
-
b
a
s
e
d
a
p
p
r
o
a
c
h
t
o
i
n
v
e
s
t
i
g
a
t
e
t
h
e
i
n
f
l
u
e
n
ce
o
f
b
l
a
d
e
m
a
t
e
r
i
a
l
o
n
t
h
e
p
e
r
f
o
r
m
a
n
c
e
o
f
a
D
a
r
r
i
e
u
s
-
t
y
p
e
v
e
r
t
i
c
al
a
x
i
s
wi
n
d
t
u
r
b
i
n
e
(
V
AW
T
)
u
n
d
e
r
l
o
w
w
i
n
d
s
p
e
e
d
c
o
n
d
i
t
i
o
n
s
.
T
h
e
wi
n
d
t
u
r
b
i
n
e
em
p
l
o
y
e
d
i
n
t
h
i
s
s
t
u
d
y
is
a
Da
r
r
i
e
u
s
-
t
y
p
e
v
e
r
ti
c
a
l
a
x
i
s
w
i
n
d
t
u
r
b
i
n
e
(
V
AW
T
)
w
it
h
a
t
h
r
e
e
-
b
l
a
d
e
d
s
y
m
m
e
t
r
i
ca
l
c
o
n
f
i
g
u
r
a
t
i
o
n
u
s
i
n
g
a
N
AC
A
0
0
1
8
a
i
r
f
o
i
l
p
r
o
f
i
l
e
[
1
]
,
[
1
5
]
,
[
2
1
]
.
T
h
i
s
c
o
n
f
i
g
u
r
a
t
i
o
n
w
a
s
s
e
l
e
ct
e
d
d
u
e
t
o
i
ts
c
a
p
a
b
il
i
t
y
t
o
o
p
e
r
a
t
e
a
t
r
el
a
ti
v
e
l
y
l
o
w
w
i
n
d
s
p
e
e
d
s
,
p
r
o
v
i
d
e
a
c
c
e
p
t
a
b
l
e
s
t
a
r
t
i
n
g
t
o
r
q
u
e
c
h
a
r
a
c
t
e
r
is
t
i
cs
,
a
n
d
a
c
h
ie
v
e
s
at
is
f
a
c
t
o
r
y
e
f
f
i
ci
e
n
c
y
f
o
r
s
m
a
ll
-
s
ca
l
e
e
n
e
r
g
y
a
p
p
l
i
c
a
ti
o
n
s
[
2
]
,
[
6
]
,
[
7
]
.
T
h
e
r
o
to
r
co
n
s
is
ts
o
f
th
r
ee
id
e
n
tical
b
lad
es
m
o
u
n
ted
s
y
m
m
e
tr
ically
ar
o
u
n
d
a
v
er
tical
s
h
af
t
to
en
s
u
r
e
b
alan
ce
d
r
o
tatio
n
a
n
d
u
n
if
o
r
m
ae
r
o
d
y
n
am
ic
p
er
f
o
r
m
an
ce
d
u
r
in
g
o
p
e
r
atio
n
.
T
h
e
th
r
ee
-
b
lad
e
co
n
f
i
g
u
r
atio
n
is
d
esig
n
ed
to
p
r
o
v
id
e
s
tab
le
r
o
tatio
n
al
m
o
tio
n
wh
ile
m
ain
tain
in
g
c
o
n
s
is
ten
t
ae
r
o
d
y
n
am
ic
lo
ad
in
g
ac
r
o
s
s
th
e
r
o
to
r
.
T
h
e
d
etailed
tu
r
b
in
e
g
e
o
m
etr
y
a
n
d
d
esig
n
p
a
r
am
eter
s
ar
e
s
u
m
m
ar
ize
d
in
T
ab
le
1
,
wh
ile
th
e
s
ch
em
atic
d
iag
r
am
o
f
th
e
s
y
s
tem
is
p
r
ese
n
ted
in
Fig
u
r
e
s
1
an
d
2
.
T
h
e
ex
p
er
im
en
tal
in
v
esti
g
atio
n
was
co
n
d
u
cted
u
n
d
e
r
co
n
tr
o
lled
lab
o
r
ato
r
y
co
n
d
itio
n
s
u
s
in
g
an
ax
ial
f
an
as
an
ar
tific
ial
win
d
s
o
u
r
c
e.
T
h
e
f
an
was
p
o
s
itio
n
ed
at
a
f
ix
ed
d
is
tan
ce
o
f
1
0
cm
f
r
o
m
th
e
tu
r
b
in
e
r
o
to
r
to
g
en
er
ate
a
u
n
if
o
r
m
air
f
lo
w
with
a
co
n
s
tan
t
win
d
s
p
ee
d
o
f
4
.
3
m
/s
[
2
4
]
,
[
2
6
]
.
T
h
e
b
l
ad
e
p
itch
an
g
le
was
m
ain
tain
ed
at
3
2
°,
an
d
th
e
tu
r
b
in
e
s
h
af
t
was
m
ec
h
an
ically
co
u
p
led
to
an
AC
g
en
er
ato
r
with
a
r
ated
o
u
tp
u
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
6
9
4
I
n
t J Po
w
E
lec
&
Dr
i
Sy
s
t
,
Vo
l.
1
7
,
No
.
3
,
Sep
tem
b
er
20
2
6
:
2162
-
2
1
7
1
2164
v
o
ltag
e
r
a
n
g
e
o
f
1
2
V
–
2
2
0
V
t
h
r
o
u
g
h
a
p
u
lley
tr
an
s
m
is
s
io
n
s
y
s
tem
[
1
2
]
,
[
1
5
]
.
T
h
is
lab
o
r
ato
r
y
-
s
ca
le
ap
p
r
o
ac
h
en
s
u
r
es st
ab
le
air
f
lo
w
co
n
d
itio
n
s
an
d
h
ig
h
r
ep
e
atab
ilit
y
o
f
m
ea
s
u
r
em
en
ts
[
1
9
]
,
[
2
6
]
,
[
3
0
]
,
[
3
1
]
.
T
ab
le
1
.
T
u
r
b
in
e
a
n
d
e
x
p
er
im
en
tal
p
ar
am
eter
s
P
a
r
a
me
t
e
r
S
y
mb
o
l
A
c
r
y
l
i
c
Zi
n
c
U
n
i
t
M
a
t
e
r
i
a
l
w
e
i
g
h
t
0
.
1
3
8
0
.
1
4
0
kg
A
v
e
r
a
g
e
t
o
r
q
u
e
T
0
.
2
0
.
16
N
-
m
R
o
t
a
t
i
o
n
sp
e
e
d
N
45
40
r
p
m
W
i
n
d
s
p
e
e
d
V
4
.
3
4
.
3
m/
s
Tu
r
b
i
n
e
r
a
d
i
u
s
R
0
.
1
4
5
0
.
1
4
5
m
Tu
r
b
i
n
e
B
l
a
d
e
W
i
d
e
D
0
.
1
8
0
.
1
8
m
Tu
r
b
i
n
e
b
l
a
d
e
h
e
i
g
h
t
(
d
i
a
m
e
t
e
r
)
H
0
.
31
0
.
31
m
N
u
mb
e
r
o
f
b
l
a
d
e
s
n
3
3
-
B
l
a
d
e
p
i
t
c
h
a
n
g
l
e
θ
32
32
°
A
i
r
d
e
n
s
i
t
y
ρ
1
.
2
2
5
1
.
2
2
5
k
g
/
m
3
G
e
n
e
r
a
t
o
r
o
u
t
p
u
t
p
o
w
e
r
(
r
a
t
e
d
)
P
ge
n_1
4
.
4
3
.
3
W
Tu
r
b
i
n
e
p
u
l
l
e
y
d
i
a
me
t
e
r
D
1
8
8
cm
G
e
n
e
r
a
t
o
r
p
u
l
l
e
y
d
i
a
m
e
t
e
r
D
2
5
5
cm
Fig
u
r
e
1
.
Flo
wch
ar
t
o
f
th
e
win
d
tu
r
b
in
e
p
r
o
to
ty
p
e
d
esig
n
s
ch
em
e
Fig
u
r
e
2
.
PLT
B
p
r
o
to
ty
p
e
d
esig
n
T
wo
d
if
f
er
e
n
t
b
lad
e
m
ater
ial
s
wer
e
u
s
ed
in
th
is
s
tu
d
y
,
n
am
ely
ac
r
y
lic
an
d
zin
c,
to
e
v
alu
ate
th
e
in
f
lu
en
ce
o
f
m
ate
r
ial
p
r
o
p
er
t
ies
o
n
tu
r
b
in
e
p
er
f
o
r
m
an
ce
.
T
h
e
p
h
y
s
ical
p
r
o
p
er
ties
o
f
th
e
m
ater
ials
ar
e
as
f
o
llo
ws:
Acr
y
lic:
d
en
s
ity
o
f
1
.
1
8
g
/cm
³
a
n
d
elastic
m
o
d
u
l
u
s
o
f
3
.
2
GPa
an
d
Z
in
c:
d
en
s
ity
o
f
7
.
1
4
g
/cm
³
a
n
d
elastic
m
o
d
u
lu
s
o
f
1
0
8
GPa
[
1
5
]
,
[
1
8
]
.
B
o
th
b
la
d
e
ty
p
es
w
er
e
f
ab
r
icate
d
with
id
en
tical
d
im
en
s
io
n
s
an
d
th
e
s
am
e
NACA
0
0
1
8
air
f
o
il
g
eo
m
etr
y
to
en
s
u
r
e
t
h
at
an
y
d
if
f
e
r
en
ce
s
in
p
er
f
o
r
m
an
ce
a
r
e
s
o
l
ely
attr
ib
u
ted
to
th
e
m
ater
ial
ch
ar
ac
ter
is
tics
[
1
5
]
,
[
1
8
]
.
T
h
e
p
r
o
to
ty
p
es o
f
b
o
th
b
l
ad
e
co
n
f
i
g
u
r
atio
n
s
ar
e
illu
s
tr
ated
in
Fig
u
r
e
3
.
T
h
e
ex
p
e
r
i
m
e
n
t
was
c
o
n
d
u
cte
d
u
n
d
e
r
c
o
n
t
r
o
lle
d
la
b
o
r
at
o
r
y
co
n
d
iti
o
n
s
.
A
n
a
x
ial
f
a
n
w
as p
o
s
it
io
n
e
d
at
a
f
i
x
e
d
d
is
t
a
n
c
e
o
f
1
0
c
m
f
r
o
m
th
e
tu
r
b
i
n
e
t
o
g
e
n
er
ate
a
c
o
n
s
t
an
t
wi
n
d
s
p
ee
d
o
f
4
.
3
m
/s
.
T
h
e
t
u
r
b
in
e
s
h
a
f
t
was
co
n
n
e
cte
d
t
o
a
n
AC
g
e
n
e
r
at
o
r
u
s
in
g
a
p
u
ll
ey
tr
an
s
m
is
s
i
o
n
s
y
s
te
m
.
T
h
e
e
x
p
e
r
i
m
e
n
t
al
s
t
ep
s
a
r
e
as
f
o
l
lo
ws:
i)
T
h
e
t
u
r
b
in
e
w
as p
la
ce
d
f
a
ci
n
g
t
h
e
ai
r
f
lo
w
s
o
u
r
c
e
; ii)
T
h
e
f
an
was o
p
e
r
a
te
d
t
o
p
r
o
d
u
c
e
a
c
o
n
s
ta
n
t w
i
n
d
s
p
ee
d
o
f
4
.
3
m
/s
; iii
)
T
h
e
t
u
r
b
i
n
e
r
o
t
ati
o
n
d
r
o
v
e
t
h
e
g
e
n
e
r
a
to
r
v
ia
t
h
e
p
u
lle
y
s
y
s
te
m
; iv
)
R
o
t
ati
o
n
al
s
p
e
e
d
,
t
o
r
q
u
e
,
a
n
d
ele
ctr
ic
al
o
u
t
p
u
t
p
o
w
er
w
as
m
ea
s
u
r
ed
;
v
)
E
a
ch
e
x
p
e
r
i
m
e
n
t
w
as
r
e
p
e
ate
d
t
h
r
ee
ti
m
es
u
n
d
er
i
d
e
n
ti
ca
l
co
n
d
it
io
n
s
;
v
i
)
T
h
e
r
esu
lts
we
r
e
a
v
e
r
a
g
ed
t
o
r
e
d
u
c
e
r
a
n
d
o
m
m
ea
s
u
r
e
m
e
n
t
e
r
r
o
r
s
an
d
i
m
p
r
o
v
e
ac
c
u
r
ac
y
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
I
SS
N:
2088
-
8
6
9
4
C
o
mp
a
r
is
o
n
o
f a
crylic
a
n
d
z
i
n
c
b
la
d
e
ma
teri
a
ls
o
n
th
e
p
erf
o
r
ma
n
ce
o
f D
a
r
r
ieu
s
ve
r
tica
l …
(
Din
a
Ma
iz
a
n
a
)
2165
(
a)
(
b
)
Fig
u
r
e
3
.
PLT
B
Pro
to
ty
p
e
:
(
a)
zin
c
m
ater
ial
ty
p
e
a
n
d
(
b
)
ac
r
y
lic
m
ater
ial
ty
p
e
T
h
is
p
r
o
ce
d
u
r
e
e
n
s
u
r
es
h
ig
h
r
ep
ea
tab
ilit
y
an
d
r
eliab
ilit
y
o
f
th
e
ex
p
er
im
e
n
tal
d
ata.
T
h
e
e
x
p
er
im
en
tal
p
r
o
ce
d
u
r
e
was
ca
r
r
ied
o
u
t
as
f
o
llo
ws:
i)
T
h
e
tu
r
b
in
e
was
p
lace
d
at
a
f
ix
ed
p
o
s
itio
n
f
ac
in
g
th
e
ax
ial
f
an
;
ii)
T
h
e
f
a
n
was
o
p
er
ated
to
p
r
o
d
u
ce
a
co
n
s
tan
t
win
d
s
p
ee
d
o
f
4
.
3
m
/s
;
iii)
T
h
e
tu
r
b
in
e
r
o
tatio
n
d
r
o
v
e
th
e
g
en
er
ato
r
v
ia
a
p
u
lley
s
y
s
tem
;
iv
)
K
ey
p
ar
am
ete
r
s
s
u
ch
as
r
o
tatio
n
al
s
p
ee
d
,
to
r
q
u
e,
a
n
d
el
ec
tr
ical
o
u
tp
u
t
wer
e
m
ea
s
u
r
ed
;
v
)
E
ac
h
e
x
p
er
im
e
n
t
was
r
ep
ea
ted
th
r
ee
tim
es
u
n
d
er
id
e
n
tical
co
n
d
itio
n
s
;
an
d
i
v
)
T
h
e
r
esu
lts
wer
e
av
er
ag
ed
t
o
im
p
r
o
v
e
d
ata
ac
c
u
r
ac
y
an
d
m
in
im
ize
r
an
d
o
m
e
r
r
o
r
s
.
Fo
r
ea
c
h
test
co
n
d
itio
n
,
ex
p
er
im
en
ts
wer
e
r
ep
ea
ted
th
r
ee
tim
es,
an
d
th
e
m
ea
s
u
r
ed
v
alu
es
wer
e
av
er
a
g
ed
to
o
b
tain
r
e
p
r
esen
tativ
e
p
e
r
f
o
r
m
a
n
ce
d
ata
a
n
d
r
ed
u
ce
th
e
lik
eli
h
o
o
d
o
f
r
an
d
o
m
m
ea
s
u
r
em
en
t e
r
r
o
r
s
[
5
]
,
[
2
7
]
,
[
1
9
]
.
i)
W
in
d
p
o
wer
:
T
h
e
p
er
f
o
r
m
an
c
e
o
f
th
e
tu
r
b
in
e
was
ev
alu
ated
u
s
in
g
(
1
)
,
wh
e
r
e
ρ
i
s
th
e
a
i
r
d
e
n
si
t
y
(
1
.
2
2
5
k
g
/
m
³
),
A
i
s
th
e
s
w
e
p
t
a
r
e
a
o
f
th
e
t
u
r
b
i
n
e
(
D
×
H
)
,
a
n
d
V
i
s
th
e
w
in
d
v
e
l
o
c
it
y
(
m
/
s
).
=
0
.
5
3
(
1
)
ii)
Me
ch
an
ical
p
o
wer
:
Th
e
m
e
c
h
a
n
ica
l
p
o
we
r
g
e
n
e
ra
ted
b
y
t
h
e
t
u
rb
i
n
e
is
d
e
fin
e
d
a
s
(
2
)
,
w
h
e
re
T
is
th
e
to
r
q
u
e
(N·m
)
,
a
n
d
ω
is t
h
e
a
n
g
u
lar
v
e
lo
c
it
y
(ra
d
/s)
,
e
x
p
re
ss
e
d
a
s (3
)
.
ℎ
=
×
(
2
)
=
2
60
(
3
)
iii)
Po
wer
c
o
ef
f
icien
t
:
Th
e
C
p
,
wh
i
c
h
re
p
re
se
n
ts
th
e
e
fficie
n
c
y
o
f
e
n
e
rg
y
c
o
n
v
e
rsio
n
fro
m
win
d
to
m
e
c
h
a
n
ica
l
p
o
we
r
,
is g
iv
e
n
b
y
(
4
).
=
0
.
5
3
(
4
)
iv
)
Me
ch
an
ical
e
f
f
icien
cy
T
h
e
m
ec
h
an
ical
e
f
f
icien
cy
o
f
t
h
e
tu
r
b
in
e
is
ca
lcu
lated
as
(
5
)
.
ɳ
ℎ
=
ℎ
×
100%
(
5
)
v)
Ov
er
all
s
y
s
tem
ef
f
icien
cy
T
h
e
o
v
e
r
all
ef
f
icien
cy
,
in
clu
d
i
n
g
g
en
er
ato
r
p
er
f
o
r
m
an
ce
,
is
ex
p
r
ess
ed
as
(
6
)
.
ɳ
=
_
2
×
100%
(
6
)
v
i)
Gen
er
ato
r
p
o
wer
with
p
u
lley
r
atio
:
Th
e
g
e
n
e
ra
to
r
p
o
we
r
fr
o
m
th
e
t
u
rb
i
n
e
si
d
e
is
i
n
flu
e
n
c
e
d
b
y
th
e
p
u
ll
e
y
ra
ti
o
a
n
d
is
c
a
lcu
late
d
a
s
(7
)
,
wh
e
re
1
a
n
d
D2
re
p
re
se
n
t
th
e
d
iam
e
ters
o
f
th
e
tu
r
b
in
e
a
n
d
g
e
n
e
ra
to
r
p
u
ll
e
y
s,
re
sp
e
c
ti
v
e
ly
.
Th
e
p
u
ll
e
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_
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1
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(
7
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
6
9
4
I
n
t J Po
w
E
lec
&
Dr
i
Sy
s
t
,
Vo
l.
1
7
,
No
.
3
,
Sep
tem
b
er
20
2
6
:
2162
-
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1
2166
v
ii
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T
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u
r
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4
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Dar
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s
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ated
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Fig
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6
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eo
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etr
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n
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itio
n
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Po
w
E
lec
&
Dr
i Sy
s
t
I
SS
N:
2088
-
8
6
9
4
C
o
mp
a
r
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n
o
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f D
a
r
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(
Din
a
Ma
iz
a
n
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)
2167
T
h
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o
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war
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th
e
Dar
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s
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r
b
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u
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e
6
.
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h
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b
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1
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.
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eg
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,
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