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0
1
8
,
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33
~
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Perf
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Driv
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a
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y:
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0
1
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R
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an
3
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0
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cc
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J
an
1
1
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2
0
1
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T
h
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a
p
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r
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re
se
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ts
th
e
p
e
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o
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n
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o
f
Bru
sh
les
s
DC
(BL
DC)
M
o
to
r
d
riv
e
w
it
h
o
n
ly
o
n
e
p
o
sit
io
n
in
g
se
n
so
r
in
ste
a
d
o
f
th
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e
c
o
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e
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ti
o
n
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l
se
n
so
rs.
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h
e
th
re
e
se
n
so
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u
n
it
s
a
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re
p
lac
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d
with
a
sin
g
le
sta
to
r
c
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rre
n
t
se
n
so
r
u
n
it
i
n
DC
b
u
s
w
h
ich
f
u
rth
e
r
re
d
u
c
e
s
th
e
c
o
st
in
c
re
a
sin
g
th
e
re
li
a
b
il
it
y
o
f
th
e
d
riv
e
s
y
ste
m
.
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in
g
a
sin
g
le
se
n
so
r
in
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re
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ires
m
in
im
u
m
e
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tro
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ic
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ip
m
e
n
t
f
o
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th
e
p
u
rp
o
se
o
f
m
e
a
su
re
m
e
n
t
p
ro
c
e
ss
.
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h
is
p
a
p
e
r
e
v
o
lv
e
s
th
e
BL
DC
m
o
to
r
d
riv
e
f
e
d
f
ro
m
P
V
sy
ste
m
.
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h
ig
h
v
o
lt
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g
e
-
g
a
i
n
DC
-
DC
c
o
n
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e
rter
is
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re
se
n
ted
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th
is
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a
p
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r
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-
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p
th
e
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m
.
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e
a
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ro
p
riate
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ss
o
f
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V
f
e
d
BL
DC
m
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r
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is
v
e
rif
ied
fo
r
v
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riab
le
in
c
re
a
m
e
n
tal
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e
d
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h
f
ix
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t
o
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e
a
n
d
v
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m
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tal
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d
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ra
ti
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g
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d
it
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s.
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m
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p
e
rf
o
r
m
a
n
c
e
is
a
lso
p
e
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o
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m
e
d
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e
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sp
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rk
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g
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o
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d
it
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n
.
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e
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ro
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sy
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m
a
n
d
re
su
lt
s
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re
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v
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e
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u
sin
g
M
A
TL
A
B/S
IM
UL
INK
so
f
t
w
a
re
.
K
ey
w
o
r
d
:
B
r
u
s
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le
s
s
C
o
n
v
er
ter
C
u
r
r
en
t se
n
s
o
r
DC
-
DC
Hig
h
v
o
lta
g
e
g
ai
n
PV
Co
p
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rig
h
t
©
201
8
In
s
t
it
u
te o
f
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d
v
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n
c
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d
E
n
g
i
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e
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n
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c
ien
c
e
.
Al
l
rig
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ts re
se
rv
e
d
.
C
o
r
r
e
s
p
o
nd
ing
A
uth
o
r
:
G.
G.
R
aj
a
Sek
h
ar
,
Dep
ar
t
m
en
t o
f
E
lectr
ical
&
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l
ec
tr
o
n
ics E
n
g
i
n
ee
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in
g
,
Ko
n
er
u
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ak
s
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m
aia
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d
u
ca
tio
n
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u
n
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atio
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Vad
d
es
w
ar
a
m
,
Gu
n
t
u
r
,
An
d
h
r
a
P
r
ad
esh
,
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n
d
ia
–
5
2
2
5
0
2
.
E
m
ail: r
s
g
g
7
3
@
g
m
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co
m
1.
I
NT
RO
D
UCT
I
O
N
T
ec
h
n
o
lo
g
y
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s
f
o
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h
u
m
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co
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v
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ce
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tr
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m
o
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m
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an
y
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licatio
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s
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iall
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.
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m
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m
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h
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v
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w
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n
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tr
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e
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ca
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b
r
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to
D
C
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m
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ex
h
ib
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f
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s
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ch
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tic
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ar
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licatio
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m
o
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ar
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s
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m
p
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co
n
s
tr
u
ct
io
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an
d
h
as
g
o
o
d
to
r
q
u
e
ch
ar
ac
ter
is
tic
s
.
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o
m
m
u
tat
io
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is
d
o
n
e
w
it
h
t
h
e
h
elp
o
f
b
r
u
s
h
-
co
m
m
u
tato
r
ass
e
m
b
l
y
.
B
r
u
s
h
is
a
s
t
at
ic
d
ev
ice
w
h
ic
h
co
llect
s
c
u
r
r
en
t
f
r
o
m
o
r
in
to
m
ac
h
in
e
v
ia
co
m
m
u
tato
r
.
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o
m
m
u
tato
r
i
s
a
r
o
ta
tin
g
d
ev
ice
w
h
ic
h
tr
an
s
f
o
r
m
s
s
u
p
p
lied
DC
to
a
lter
n
ati
n
g
t
y
p
e
to
ar
m
a
tu
r
e.
Du
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to
t
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p
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esen
ce
o
f
co
m
m
u
tato
r
an
d
b
r
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s
h
ass
e
m
b
l
y
in
co
n
v
en
t
io
n
al
D
C
m
o
to
r
s
,
ad
d
itio
n
a
l
lo
s
s
es
ar
e
p
r
o
d
u
ce
d
an
d
w
it
h
r
es
u
lti
n
g
s
p
ar
k
s
.
T
h
is
p
h
en
o
m
e
n
o
n
a
f
f
ec
ts
t
h
e
o
v
er
a
ll
s
y
s
te
m
ef
f
icie
n
c
y
.
T
o
i
m
p
r
o
v
e
t
h
e
s
y
s
te
m
e
f
f
icie
n
c
y
an
d
t
o
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ed
u
ce
ad
d
itio
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lo
s
s
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p
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ce
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t
th
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s
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d
co
m
m
u
tato
r
f
o
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co
m
m
u
ta
tio
n
[
1
-
3
]
.
B
r
u
s
h
le
s
s
D
C
(
B
L
DC
)
m
o
to
r
s
ar
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s
y
n
c
h
r
o
n
o
u
s
m
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p
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m
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g
b
r
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c
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m
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.
B
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DC
m
o
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co
n
s
tr
u
cted
w
it
h
ar
m
at
u
r
e
o
n
its
s
tato
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d
p
er
m
a
n
en
t
m
a
g
n
et
s
o
n
it
s
r
o
to
r
[4
-
5
]
.
B
L
DC
m
o
to
r
d
o
es
n
o
t
co
n
s
i
s
t
o
f
w
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n
d
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g
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b
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tato
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th
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s
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n
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m
in
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le
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co
p
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less
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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N
:
2
0
8
8
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8
694
I
n
t J
P
o
w
er
E
lectr
o
n
&
Dr
i S
y
s
t
,
Vo
l.
9
,
No
.
1
,
Ma
r
ch
2
0
1
8
:
33
–
45
34
r
ea
ctiv
e
p
o
w
er
ab
s
o
r
p
tio
n
a
s
co
m
p
ar
ed
w
it
h
i
n
d
u
ct
io
n
m
o
t
o
r
w
h
ich
h
a
s
w
i
n
d
in
g
s
o
n
b
o
th
s
tato
r
an
d
r
o
to
r
.
So
lid
s
tate
elec
tr
o
n
ic
s
w
i
tch
e
s
ca
r
r
ies
e
lec
tr
ical
co
m
m
u
tat
i
o
n
i
n
B
L
DC
m
o
to
r
e
x
cl
u
d
in
g
t
h
e
u
s
e
o
f
b
r
u
s
h
-
co
m
m
u
tato
r
ass
e
m
b
l
y
as
i
n
co
n
v
en
t
io
n
al
DC
m
o
to
r
s
.
T
h
is
t
y
p
e
o
f
co
n
s
tr
u
ctio
n
ca
n
i
m
p
r
o
v
e
s
y
s
te
m
ef
f
icien
c
y
w
it
h
i
n
cr
ea
s
ed
p
er
f
o
r
m
a
n
ce
.
Stato
r
w
in
d
i
n
g
s
o
f
B
L
DC
m
o
to
r
ar
e
ex
cited
w
it
h
alter
n
ati
n
g
th
r
ee
-
p
h
ase
cu
r
r
e
n
ts
p
r
o
d
u
cin
g
r
o
ta
tin
g
m
a
g
n
etic
f
ield
.
R
o
tati
n
g
m
ag
n
etic
f
ield
i
n
ter
ac
ts
w
it
h
th
e
r
o
to
r
f
lu
x
a
n
d
to
r
q
u
e
is
e
x
er
ted
o
n
r
o
to
r
.
B
L
DC
m
o
to
r
ca
n
r
u
n
a
t
h
i
g
h
s
p
e
ed
s
w
it
h
lo
w
ac
o
u
s
tic
n
o
is
e.
Hig
h
e
f
f
icie
n
c
y
an
d
r
eliab
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y
also
m
ak
e
s
B
L
D
C
m
o
to
r
a
b
e
tter
ch
o
ice
f
o
r
m
a
n
y
ap
p
licatio
n
s
[
6
-
7
]
.
C
o
n
v
e
r
t
e
r
f
o
r
B
L
D
C
L
o
g
i
c
C
o
n
t
r
o
l
l
e
r
D
r
i
v
e
r
D
C
S
u
p
p
l
y
P
o
s
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t
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o
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e
n
s
i
n
g
B
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D
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M
o
t
o
r
E
l
e
c
t
r
o
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i
c
C
o
m
m
u
t
a
t
i
o
n
Fig
u
r
e
1.
B
lo
ck
d
iag
r
a
m
o
f
B
L
D
C
m
o
to
r
Fig
u
r
e
1
s
h
o
w
s
t
h
e
b
lo
ck
d
iag
r
a
m
o
f
B
L
D
C
m
o
to
r
w
ith
elec
tr
o
n
ic
co
m
m
u
tato
r
an
d
lo
g
ic
c
o
n
tr
o
ller
.
B
L
DC
i
s
s
u
p
p
lied
f
r
o
m
DC
s
u
p
p
ly
a
n
d
elec
tr
o
n
ic
co
m
m
u
tat
o
r
co
n
v
er
ts
t
h
e
D
C
s
u
p
p
l
y
g
iv
en
to
B
L
D
C
to
A
C
as
co
m
m
u
tato
r
in
co
n
v
en
t
io
n
a
l
m
ac
h
i
n
e.
Hall
s
e
n
s
o
r
s
s
e
n
s
e
th
e
p
o
s
itio
n
o
f
th
e
r
o
to
r
an
d
s
en
d
s
p
o
s
itio
n
s
i
g
n
a
l
to
co
n
tr
o
ller
in
w
h
ic
h
co
n
tr
o
l
ac
tio
n
tak
e
s
p
lace
[
5
-
6
]
.
T
h
e
co
n
tr
o
ller
p
r
o
d
u
ce
s
g
ate
p
u
ls
e
s
to
s
o
lid
-
s
ta
te
s
w
itc
h
es i
n
co
n
v
er
ter
th
r
o
u
g
h
d
r
iv
er
cir
cu
it
.
B
L
D
C
C
o
n
v
e
r
t
e
r
P
V
S
y
s
t
e
m
B
L
D
C
M
o
t
o
r
R
e
a
l
T
i
m
e
M
a
c
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i
n
e
D
C
D
C
D
C
A
C
Fig
u
r
e
2
.
P
V
ce
ll Fed
B
L
DC
m
o
to
r
T
h
e
DC
s
o
u
r
ce
to
b
e
f
ed
to
B
L
D
C
m
o
to
r
as
an
i
n
p
u
t
is
c
h
o
s
en
to
b
e
p
h
o
to
-
v
o
lta
ic
(
P
V)
s
y
s
te
m
i
n
th
is
p
ap
er
.
P
-
N
j
u
n
c
tio
n
la
y
er
ar
r
an
g
ed
in
a
s
p
ec
if
ic
m
an
n
e
r
f
o
r
m
s
a
P
V
ce
ll
a
n
d
w
h
e
n
p
h
o
to
n
s
f
r
o
m
s
o
lar
en
er
g
y
f
all
s
o
n
P
V
ce
ll,
elec
t
r
o
n
s
in
P
V
ce
ll
tr
ies
to
m
o
v
e
c
r
o
s
s
in
g
th
e
b
ar
r
ier
j
u
n
ctio
n
g
i
v
in
g
r
is
e
to
cu
r
r
en
t
f
lo
w
.
So
lar
en
er
g
y
i
s
a
t
y
p
e
o
f
r
en
e
w
ab
le
en
er
g
y
s
o
u
r
ce
f
r
ee
l
y
av
ailab
le
f
r
o
m
u
n
iv
er
s
e
an
d
th
e
elec
tr
ica
l
en
er
g
y
g
en
er
ated
f
r
o
m
t
h
is
t
y
p
e
o
f
r
eso
u
r
ce
i
s
i
n
ex
h
a
u
s
ti
b
le.
P
V
s
y
s
te
m
g
en
er
ate
s
D
C
t
y
p
e
o
f
elec
tr
ical
p
o
w
er
an
d
is
o
f
lo
w
v
o
ltag
e.
T
h
e
lo
w
v
o
lta
g
e
o
u
tp
u
t
f
r
o
m
s
o
lar
P
V
s
y
s
te
m
is
in
s
u
f
f
icie
n
t
to
d
r
iv
e
an
y
s
y
s
te
m
an
d
t
h
u
s
r
eq
u
ir
e
s
a
v
o
lta
g
e
b
o
o
s
ter
g
en
er
all
y
a
D
C
-
DC
co
n
v
er
ter
.
H
ig
h
g
ai
n
D
C
-
D
C
co
n
v
er
ter
is
e
m
p
lo
y
ed
in
t
h
is
p
ap
er
f
o
r
b
o
o
s
tin
g
t
h
e
lo
w
v
o
ltag
e
DC
o
u
tp
u
t
f
r
o
m
P
V
s
y
s
te
m
.
T
h
e
co
m
p
lete
s
ch
e
m
atic
ar
r
an
g
e
m
en
t
o
f
P
V
ce
ll Fed
B
L
DC
m
o
to
r
is
s
h
o
w
n
i
n
Fi
g
u
r
e
2.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
P
o
w
er
E
lectr
o
n
&
Dr
i
S
y
s
t
I
SS
N:
2088
-
8
694
P
erfo
r
ma
n
ce
o
f B
r
u
s
h
less
DC
Dri
ve
w
ith
S
in
g
le
C
u
r
r
en
t S
en
s
o
r
F
ed
…
(
G.
G.
R
a
ja
S
ek
h
a
r
)
35
T
h
is
p
ap
er
p
r
esen
ts
th
e
p
er
f
o
r
m
a
n
ce
o
f
B
r
u
s
h
le
s
s
D
C
(
B
L
DC
)
Mo
to
r
d
r
iv
e
w
ith
o
n
l
y
o
n
e
p
o
s
itio
n
in
g
s
e
n
s
o
r
i
n
s
tead
o
f
th
r
ee
co
n
v
e
n
tio
n
al
s
e
n
s
o
r
s
[
7
-
1
0
]
.
T
h
e
th
r
ee
s
en
s
o
r
u
n
it
s
a
r
e
r
ep
lace
d
w
it
h
a
s
in
g
le
s
tato
r
cu
r
r
en
t
s
e
n
s
o
r
u
n
it
i
n
DC
b
u
s
w
h
ic
h
f
u
r
t
h
er
r
ed
u
ce
s
th
e
co
s
t
i
n
cr
ea
s
i
n
g
t
h
e
r
eliab
ilit
y
o
f
t
h
e
d
r
iv
e
s
y
s
te
m
[
1
1
-
1
4
]
.
Usi
n
g
a
s
in
g
le
s
en
s
o
r
in
s
tato
r
r
eq
u
ir
es
m
i
n
i
m
u
m
elec
tr
o
n
ic
eq
u
ip
m
en
t
f
o
r
th
e
p
u
r
p
o
s
e
o
f
m
ea
s
u
r
e
m
en
t
p
r
o
ce
s
s
.
T
h
is
p
ap
er
ev
o
lv
es
th
e
B
L
D
C
m
o
to
r
d
r
iv
e
[
1
5
-
1
7
]
f
ed
f
r
o
m
P
V
s
y
s
te
m
.
A
h
i
g
h
v
o
ltag
e
-
g
ai
n
D
C
-
D
C
co
n
v
er
t
er
is
p
r
esen
ted
in
th
i
s
p
ap
er
to
s
tep
-
u
p
t
h
e
v
o
ltag
e
f
r
o
m
P
V
s
y
s
te
m
.
T
h
e
ap
p
r
o
p
r
iaten
ess
o
f
P
V
f
ed
B
L
D
C
m
o
to
r
d
r
iv
e
is
v
er
i
f
ied
f
o
r
v
ar
iab
le
in
cr
ea
m
en
ta
l
s
p
ee
d
w
it
h
f
i
x
ed
to
r
q
u
e
an
d
v
ar
iab
le
d
ec
r
e
m
e
n
tal
s
p
ee
d
w
it
h
f
i
x
ed
to
r
q
u
e
o
p
er
atin
g
co
n
d
itio
n
s
.
B
L
DC
m
o
to
r
d
r
iv
e
p
er
f
o
r
m
a
n
ce
i
s
also
p
er
f
o
r
m
ed
f
o
r
v
ar
iab
le
to
r
q
u
e
w
i
th
f
i
x
ed
p
ee
d
w
o
r
k
i
n
g
co
n
d
itio
n
.
T
h
e
p
r
o
p
o
s
ed
s
y
s
t
e
m
a
n
d
r
esu
lt
s
ar
e
d
ev
elo
p
ed
u
s
in
g
M
A
T
L
A
B
/SI
MU
L
I
NK
s
o
f
t
w
ar
e.
2.
P
V
F
E
D
H
I
G
H
-
G
A
I
N
DC
-
D
C
CO
NVER
T
E
R
2
.
1
H
ig
h
-
g
a
in DC
-
DC
Co
nv
er
t
er
I
n
p
u
t
V
o
l
t
a
g
e
O
u
t
p
u
t
V
o
l
t
a
g
e
D
1
C
1
C
2
D
2
D
3
N
2
N
1
C
3
S
H
i
g
h
G
a
i
n
D
C
-
D
C
C
o
n
v
e
r
t
e
r
Fig
u
r
e
3
.
Hig
h
g
ai
n
d
c
-
d
c
co
n
v
er
ter
T
h
e
cir
cu
it
co
n
f
ig
u
r
atio
n
o
f
h
ig
h
-
g
ain
DC
-
D
C
is
o
lated
co
n
v
er
ter
i
s
s
h
o
w
n
i
n
Fi
g
u
r
e
3
.
T
h
e
lo
w
v
o
ltag
e
D
C
f
r
o
m
P
V
s
y
s
te
m
i
s
f
ed
to
is
o
lated
DC
-
DC
co
n
v
er
ter
to
b
o
o
s
t th
e
lev
el
o
f
v
o
lta
g
e.
S
1
V
D
S
i
D
S
V
i
n
D
1
D
2
D
3
i
D
3
N
2
C
1
C
2
C
3
i
D
2
i
L
K
2
L
K
2
i
0
R
i
D
1
V
L
m
L
K
1
i
L
K
1
L
m
i
L
m
i
c
1
S
1
V
D
S
i
D
S
V
i
n
D
1
D
2
D
3
i
D
3
N
2
C
1
C
2
C
3
i
D
2
i
L
K
2
L
K
2
i
0
R
i
D
1
V
L
m
L
K
1
i
L
K
1
L
m
i
L
m
i
c
1
(
a)
(
b
)
Fig
u
r
e
4
.
(
a)
Hig
h
g
ai
n
D
C
-
D
C
co
n
v
er
ter
w
h
en
s
w
itc
h
in
O
N,
(
b
)
s
w
itch
i
n
OF
F
W
h
en
s
w
itch
S
is
i
n
ON
p
o
s
iti
o
n
,
th
e
p
r
i
m
ar
y
in
d
u
cto
r
g
ets
ch
ar
g
ed
b
y
i
n
p
u
t
v
o
ltag
e
th
r
o
u
g
h
s
w
itc
h
S1
.
A
t
th
e
s
a
m
e
ti
m
e
t
h
e
s
ec
o
n
d
ar
y
in
d
u
cto
r
s
tar
ts
d
i
s
ch
ar
g
in
g
a
n
d
ca
u
s
es
to
c
h
ar
g
i
n
g
t
h
e
ca
p
ac
ito
r
C
2
.
I
n
th
is
ca
s
e,
ca
p
ac
ito
r
C
3
d
is
c
h
ar
g
es a
n
d
s
u
p
p
lies
to
lo
ad
at
th
e
o
u
tp
u
t a
s
s
h
o
w
n
i
n
Fi
g
u
r
e
4
(
a)
.
W
h
en
s
w
itc
h
S
is
in
O
FF
p
o
s
itio
n
,
t
h
en
th
e
ch
ar
g
ed
p
r
i
m
ar
y
in
d
u
cto
r
d
is
c
h
ar
g
es
t
h
r
o
u
g
h
d
io
d
e
D1
an
d
ca
p
a
cito
r
C
1
.
T
h
er
ef
o
r
e
ca
p
ac
ito
r
C
1
g
ets
ch
ar
g
es.
M
ea
n
w
h
ile
t
h
e
ch
ar
g
ed
ca
p
ac
ito
r
C
2
s
tar
ts
d
is
ch
ar
g
i
n
g
a
n
d
c
a
u
s
e
s
to
ch
ar
g
e
t
h
e
s
ec
o
n
d
ar
y
i
n
d
u
c
to
r
an
d
o
u
tp
u
t
ca
p
ac
ito
r
C
3
as
s
h
o
w
n
i
n
Fi
g
u
r
e
4
(
b
)
.
T
o
s
i
m
p
li
f
y
t
h
e
s
te
ad
y
-
s
tate
a
n
al
y
s
i
s
,
o
n
l
y
m
o
d
es
p
er
tain
in
g
to
s
w
i
tch
OF
F
i
s
co
n
s
id
er
ed
f
o
r
C
C
M
o
p
er
atio
n
,
an
d
t
h
e
lea
k
ag
e
in
d
u
cta
n
ce
o
n
th
e
s
ec
o
n
d
ar
y
an
d
p
r
i
m
ar
y
s
id
es
ar
e
n
eg
lecte
d
.
B
y
co
n
s
id
er
in
g
th
e
av
er
ag
e
v
o
ltag
e
ac
r
o
s
s
i
n
d
u
cto
r
an
d
eq
u
atin
g
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
694
I
n
t J
P
o
w
er
E
lectr
o
n
&
Dr
i S
y
s
t
,
Vo
l.
9
,
No
.
1
,
Ma
r
ch
2
0
1
8
:
33
–
45
36
to
ze
r
o
d
u
r
in
g
ON
ti
m
e
a
n
d
OFF
ti
m
e,
t
h
e
v
o
ltag
e
g
ain
f
o
r
th
e
h
i
g
h
g
ain
D
C
-
DC
co
n
v
er
te
r
is
d
er
iv
ed
to
b
e
as
(
1
)
,
w
h
er
e
‘
n
’
i
s
t
u
r
n
s
r
atio
n
b
et
w
ee
n
p
r
i
m
ar
y
to
s
ec
o
n
d
ar
y
o
f
co
u
p
l
ed
in
d
u
cto
r
.
2
.
2
.
Clo
s
ed
-
lo
o
p o
pera
t
io
n o
f
H
ig
h
-
G
a
in DC
-
DC
Co
nv
er
t
er
D
1
C
1
C
2
D
2
D
3
N
2
N
1
C
3
S
H
i
g
h
G
a
i
n
D
C
-
D
C
C
o
n
v
e
r
t
e
r
V
P
I
V
c
a
r
r
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u
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s
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u
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2
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3
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6
.
P
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Hig
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DC
C
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f
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r
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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37
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3
.
SI
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.
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Fig
u
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.
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ac
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MF
in
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C
m
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to
r
an
d
p
h
ase
cu
r
r
en
t
s
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m
o
to
r
is
ex
cited
f
r
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m
co
n
v
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ter
o
f
B
L
DC
m
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to
r
w
h
ic
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is
t
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p
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/
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co
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ter
.
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y
p
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ter
f
ed
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L
D
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m
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is
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lu
s
tr
ated
in
Fi
g
u
r
e
7
.
T
h
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r
n
ON
an
d
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p
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w
itc
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s
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n
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ex
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d
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g
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f
s
tato
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h
e
co
r
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esp
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d
in
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b
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MF
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r
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h
o
w
n
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Fi
g
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r
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n
a
B
L
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m
o
to
r
t
w
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s
tato
r
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h
ases
ar
e
e
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ized
at
a
t
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.
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tch
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ter
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e
u
p
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)
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t
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t.
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t
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e
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a
m
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u
r
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h
t
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m
.
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m
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s
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c
u
r
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en
t,
m
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s
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h
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s
i
n
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l
in
k
c
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r
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t
s
e
n
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r
.
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m
t
h
e
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li
n
k
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r
r
en
t,
th
e
p
h
ase
c
u
r
r
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ts
ar
e
esti
m
ated
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co
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d
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e
p
h
a
s
e
cu
r
r
en
t
w
a
v
e
f
o
r
m
s
i
n
Fi
g
u
r
e
8
.
Sp
ee
d
co
n
tr
o
l
o
f
B
L
DC
m
o
t
o
r
in
clo
s
ed
lo
o
p
m
o
d
e
o
f
o
p
er
atio
n
is
d
o
n
e
w
it
h
i
n
itial
s
en
s
in
g
o
f
cu
r
r
en
ts
in
s
tato
r
o
f
B
L
D
C
m
o
to
r
.
P
h
ase
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r
r
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t
s
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n
s
tat
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r
w
in
d
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g
s
ar
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I
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I
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P
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w
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E
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&
Dr
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9
,
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1
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–
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38
B
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9
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ase
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r
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9
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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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t J
P
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w
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E
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Dr
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I
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N:
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Fig
u
r
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13
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Hig
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lts
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
694
I
n
t J
P
o
w
er
E
lectr
o
n
&
Dr
i S
y
s
t
,
Vo
l.
9
,
No
.
1
,
Ma
r
ch
2
0
1
8
:
33
–
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40
T
h
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Fi
g
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1
3
.
DC
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n
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ter
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cr
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lev
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f
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as
s
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g
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v
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Fig
u
r
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14
.
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ase
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g
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1
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u
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15
.
Sp
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Fig
u
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16
.
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r
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
P
o
w
er
E
lectr
o
n
&
Dr
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S
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s
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I
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N:
2088
-
8
694
P
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.
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u
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18
.
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1
9
: Stato
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ts
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f
B
L
D
C
m
o
to
r
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8
694
I
n
t J
P
o
w
er
E
lectr
o
n
&
Dr
i S
y
s
t
,
Vo
l.
9
,
No
.
1
,
Ma
r
ch
2
0
1
8
:
33
–
45
42
Stato
r
cu
r
r
en
t
o
f
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e
p
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ase
o
f
B
L
D
C
m
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d
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Fi
g
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r
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1
9
.
Sin
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4
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s
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u
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u
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2
0
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g
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2
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1
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2
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Fig
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2
2
: P
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Evaluation Warning : The document was created with Spire.PDF for Python.