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r
en
t
-
So
u
r
ce
-
I
n
v
er
ter
(
C
SI)
or
Vo
ltag
e
-
So
u
r
ce
-
I
n
v
er
ter
(
VSI
)
.
Ho
w
e
v
er
,
in
ap
p
licatio
n
f
o
r
s
tan
d
alo
n
e
/is
la
n
d
ed
m
o
d
e
o
p
er
atio
n
,
VSI
d
o
es
n
o
t
r
e
q
u
ir
e
an
y
r
ef
er
en
ce
to
p
r
eser
v
e
it
s
y
n
c
h
r
o
n
ized
[
1
0
]
r
ath
er
th
a
n
g
r
id
co
n
n
ec
ted
o
p
er
atio
n
m
o
d
e
[
1
1
]
w
h
ich
g
i
v
e
h
ig
h
p
r
io
r
it
y
o
n
t
h
i
s
ca
s
e
to
m
ai
n
tai
n
t
h
e
g
r
id
s
ta
b
ilit
y
.
As
a
r
es
u
lt,
m
icr
o
g
r
id
an
d
o
t
h
er
g
r
id
m
u
s
t
b
e
in
c
o
n
d
itio
n
w
h
er
e
th
e
v
o
ltag
e
a
n
d
f
r
eq
u
e
n
c
y
ar
e
i
n
g
o
o
d
p
o
w
er
q
u
al
it
y
o
n
t
h
e
s
y
s
t
e
m
[
1
2
]
all
o
v
er
th
e
ti
m
e
.
A
s
f
o
r
s
y
n
c
h
r
o
n
izatio
n
p
r
o
ce
s
s
,
it
r
eq
u
ir
es
v
alu
e
o
f
f
r
eq
u
en
c
y
an
d
t
h
e
a
m
p
lit
u
d
e,
alo
n
g
w
i
th
p
h
ase
o
n
t
h
e
f
u
n
d
a
m
en
tal
co
m
p
o
n
e
n
t
f
r
o
m
t
h
e
g
r
id
v
o
lta
g
e
a
s
to
b
e
th
e
r
e
f
er
en
ce
s
f
o
r
th
e
co
n
tr
o
ller
d
esig
n
to
t
h
e
i
n
v
er
ter
[
1
3
]
.
A
s
k
n
o
w
n
,
t
h
e
S
y
n
ch
r
o
n
o
u
s
Gen
er
ato
r
(
SG)
w
h
er
e
h
a
s
b
ee
n
co
n
n
ec
ted
to
t
h
e
i
n
f
in
i
t
y
b
u
s
d
o
es
n
o
t
r
eq
u
ir
ed
s
y
n
ch
r
o
n
izatio
n
to
th
e
g
r
id
in
o
r
d
er
to
co
n
tr
o
l a
n
d
d
eliv
er
t
h
e
p
o
w
er
d
u
e
to
t
h
e
a
d
v
a
n
ta
g
e
o
f
g
e
n
er
ato
r
co
n
tr
o
l th
at
u
s
ed
to
r
q
u
e
an
g
le
[
1
4
]
co
n
tr
o
l to
co
n
tr
o
l th
e
an
g
le
b
et
w
ee
n
t
h
e
g
r
id
an
d
g
en
er
ato
r
T
h
is
co
n
ce
p
t
th
a
t
u
s
es
a
s
y
n
ch
r
o
n
o
u
n
s
g
en
er
ato
r
to
b
e
o
n
e
o
f
t
h
e
co
n
tr
o
l
s
tr
ateg
ies
h
as
b
ee
n
p
r
o
p
o
s
ed
b
y
[
1
5
]
.
I
t
s
h
o
w
s
t
h
at
,
th
e
i
n
v
er
ter
can
ac
t
as
a
s
y
n
c
h
r
o
n
o
u
s
g
e
n
er
ato
r
if
all
d
y
n
a
m
ic
p
r
o
p
er
ties
w
h
ic
h
i
s
d
r
iv
e
n
b
y
m
ec
h
a
n
ica
l
p
r
i
m
e
m
o
v
er
s
ar
e
b
ee
n
co
n
s
i
d
er
ed
in
t
h
e
d
esi
g
n
i
n
g
t
h
e
co
n
tr
o
l
s
tr
ateg
y
f
o
r
t
h
e
in
v
er
ter
f
o
r
s
el
f
-
s
y
n
ch
r
o
n
iza
ti
o
n
ab
ilit
y
.
P
ap
er
[
1
6
]
d
is
cu
s
s
ed
an
o
th
er
v
ir
tu
a
l
s
y
s
n
c
h
r
o
n
o
u
s
g
e
n
er
ato
r
m
o
d
el
to
co
n
tr
o
l
th
e
v
ir
tu
al
in
er
ti
a
f
o
r
s
tab
ilizi
n
g
th
e
f
r
eq
u
e
n
c
y
in
t
h
e
s
y
s
te
m
.
Fo
r
th
i
s
p
ap
er
,
th
e
v
ir
tu
a
l
s
y
n
ch
r
n
o
u
o
u
s
co
n
v
er
ter
is
d
ev
elo
p
ed
b
y
co
m
b
i
n
in
g
with
to
r
q
u
e
-
p
o
w
er
m
ath
e
m
at
i
ca
l
ex
p
r
ess
io
n
in
s
y
n
ch
r
o
n
o
u
s
g
en
er
ato
r
in
o
r
d
er
to
b
e
c
o
m
b
i
n
ed
w
ith
t
h
e
g
r
id
-
in
v
er
ter
s
y
n
c
h
r
o
n
izat
io
n
f
o
r
cr
ea
tin
g
a
v
ir
t
u
a
l
s
y
n
ch
r
o
n
o
u
s
co
n
v
er
ter
(
VSC
o
n
)
.
T
h
is
p
ap
er
is
o
r
g
an
ized
w
it
h
f
o
llo
w
i
n
g
s
ec
t
io
n
s
.
Sectio
n
2
is
o
r
g
an
ized
w
it
h
s
h
o
r
t
b
r
ief
i
n
g
o
n
s
y
n
c
h
r
o
n
o
u
s
g
en
er
at
or
an
d
ter
m
t
h
at
ar
e
r
elev
an
t
to
d
ev
elo
p
a
VSC
o
n
.
S
ec
tio
n
3
co
n
s
is
t
s
o
f
i
m
p
le
m
en
ta
tio
n
o
f
SG
in
v
ir
t
u
al
m
o
d
e,
f
o
llo
w
ed
b
y
i
ts
v
al
id
atio
n
in
s
i
m
u
latio
n
an
d
d
i
s
c
u
s
s
io
n
i
n
s
ec
tio
n
4
.
So
m
e
co
n
cl
u
s
io
n
s
ar
e
m
ad
e
i
n
s
ec
tio
n
5
.
2.
SYNCH
RO
NO
US
G
E
NE
R
AT
O
R
P
H
E
NO
M
E
NO
N
I
n
th
i
s
s
ec
tio
n
,
t
h
e
m
o
d
ellin
g
o
f
s
y
n
ch
r
o
n
o
u
s
g
e
n
er
ato
r
[
1
7
]
,
[
1
8
]
w
ill
b
e
d
is
cu
s
s
ed
i
n
s
t
ea
d
y
s
tate
an
d
d
u
r
in
g
b
ala
n
ce
co
n
d
itio
n
o
f
th
e
v
o
lta
g
e
o
r
cu
r
r
en
t
f
o
r
ea
s
y
a
n
al
y
s
i
s
in
o
r
d
er
to
b
e
u
s
ed
as
a
b
ased
m
at
h
e
m
a
tical
s
tr
u
ctu
r
e
o
f
t
h
e
VSC
o
n
.
I
n
t
h
i
s
ca
s
e,
s
ev
er
al
a
s
s
u
m
p
tio
n
s
ar
e
b
ee
n
m
ad
e
r
eg
ar
d
in
g
to
d
y
n
a
m
ic
an
al
y
s
is
o
f
s
y
n
ch
r
o
n
o
u
s
g
en
er
ato
r
.
F
o
r
ex
a
m
p
le
,
f
o
r
s
y
s
te
m
an
a
l
y
s
is
a
n
d
co
n
tr
o
ller
d
esig
n
,
d
am
p
i
n
g
-
w
in
d
i
n
g
s
-
les
s
r
o
u
n
d
r
o
to
r
m
ac
h
in
e
i
s
b
ee
n
co
n
s
i
d
er
ed
to
h
av
e
p
p
air
s
o
f
p
o
les
p
er
p
h
ase
w
it
h
o
u
t
ef
f
ec
t
o
f
m
ag
n
etic
s
a
tu
r
atio
n
o
f
ir
o
n
co
r
e.
Sin
ce
,
s
y
n
c
h
r
o
n
o
u
s
g
en
er
ato
r
is
d
r
iv
e
n
b
y
m
ec
h
an
ica
l
p
o
w
er
f
r
o
m
p
r
im
e
-
m
o
v
er
,
t
h
is
s
ec
tio
n
is
d
i
v
id
ed
in
to
t
w
o
s
u
b
-
s
ec
tio
n
s
wh
ich
ar
e
elec
tr
ical
p
ar
t a
n
d
m
e
ch
an
ica
l p
ar
t
o
f
t
h
e
s
y
n
ch
r
o
n
o
u
s
g
en
er
ato
r
.
2
.
1
.
E
lect
rica
l P
a
rt
T
h
e
b
asic
p
a
r
t
o
f
s
y
n
ch
r
o
n
o
u
s
g
en
er
ato
r
is
f
er
r
o
m
a
g
n
e
tic
s
tr
u
ctu
r
e
t
h
at
h
as
h
o
llo
w
c
y
li
n
d
r
ical
p
ar
t
th
at
k
n
o
w
n
as
s
ta
to
r
o
r
a
r
m
at
u
r
e
is
u
s
ed
to
s
lo
t
th
e
ar
m
atu
r
e
w
in
d
i
n
g
s
an
d
th
e
n
th
e
r
o
to
r
r
o
tates
in
s
id
e
th
e
h
o
llo
w
c
y
lin
d
er
.
T
h
e
w
i
n
d
in
g
o
n
t
h
e
r
o
to
r
,
is
ca
lled
t
h
e
f
i
eld
w
i
n
d
i
n
g
s
.
T
h
e
DC
cu
r
r
en
t
is
s
u
p
p
lied
to
t
h
e
f
ield
w
i
n
d
in
g
b
y
a
n
ex
ci
ter
to
p
r
o
d
u
ce
h
ig
h
m
a
g
n
eto
m
o
ti
v
e
f
o
r
ce
(
m
m
f
)
.
Fi
g
u
r
e
1
s
h
o
w
s
,
th
e
id
ea
l
s
tr
u
ctu
r
e
o
f
s
y
n
c
h
r
o
n
o
u
s
g
e
n
er
ato
r
w
h
ich
r
ep
r
esen
t
t
h
e
t
h
r
ee
ar
m
at
u
r
e
w
in
d
i
n
g
s
o
n
t
h
e
s
tato
r
r
o
u
n
d
-
r
o
to
r
m
ac
h
i
n
e
an
d
co
n
ce
n
tr
ated
co
il
f
w
h
ic
h
r
ep
r
esen
t th
e
d
is
tr
ib
u
ted
f
ield
w
i
n
d
i
n
g
o
n
t
h
e
r
o
to
r
.
Fig
u
r
e
1
.
I
d
ea
l th
r
ee
-
p
h
ase
g
e
n
er
ato
r
w
it
h
ar
m
a
tu
r
e
co
ils
a
n
d
f
ield
co
il [
1
7
]
Evaluation Warning : The document was created with Spire.PDF for Python.
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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(
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I
SS
N
:
2
0
8
8
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694
IJ
PEDS
Vo
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2
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7
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1385
[3
]
Am
in
,
M
.
R.
,
&
Ro
y
,
R.
B.
De
ter
m
in
a
ti
o
n
o
f
El
e
c
tri
c
V
e
h
icle
P
o
w
e
r
Co
n
su
m
p
ti
o
n
f
o
r
A
ss
o
rted
P
a
v
e
m
e
n
t
G
ra
d
ien
t
Us
in
g
M
a
tl
a
b
/S
im
u
li
n
k
.
In
d
o
n
e
si
a
n
J
o
u
rn
a
l
o
f
El
e
c
trica
l
E
n
g
i
n
e
e
rin
g
a
n
d
Co
mp
u
ter
S
c
ien
c
e
,
v
o
l.
1
2
(9
),
p
p
.
6
6
0
2
-
6
6
1
1
,
2
0
1
4
[4
]
Ru
h
u
l
Am
in
,
M
.
,
&
Ro
y
,
R.
B.
“
De
sig
n
a
n
d
simu
la
t
io
n
o
f
wire
les
s
sta
ti
o
n
a
ry
c
h
a
rg
i
n
g
s
y
ste
m
fo
r
h
y
b
rid
e
lec
tric
v
e
h
icle
u
sin
g
in
d
u
c
ti
v
e
p
o
we
r
p
a
d
in
p
a
rk
in
g
g
a
ra
g
e
”
.
In
S
o
f
tw
a
r
e
,
Kn
o
w
led
g
e
,
In
f
o
r
m
a
ti
o
n
M
a
n
a
g
e
m
e
n
t
a
n
d
A
p
p
li
c
a
ti
o
n
s (S
KIMA
),
2
0
1
4
8
th
In
tern
a
ti
o
n
a
l
C
o
n
f
e
re
n
c
e
o
n
(p
p
.
1
-
5
).
IEE
E.
De
c
e
m
b
e
r
2
0
1
4
[5
]
El
e
v
e
n
th
M
a
lay
sia
P
lan
,
S
tr
a
teg
y
P
a
p
e
r
1
7
:
S
u
sta
i
n
a
b
le
Us
a
g
e
o
f
En
e
rg
y
to
S
u
p
p
o
rt
G
ro
w
th
,
h
tt
p
:
//
ww
w
.
e
p
u
.
g
o
v
.
m
y
[6
]
N.W
.
A
.
L
id
u
la
a
n
d
A
.
D.
Ra
jap
a
k
se
,
"
M
icro
g
rid
s
re
se
a
rc
h
:
A
re
v
ie
w
o
f
e
x
p
e
ri
m
e
n
tal
m
icro
g
rid
s
a
n
d
tes
t
sy
ste
m
s,
"
Ren
e
wa
b
le
a
n
d
S
u
sta
in
a
b
le E
n
e
rg
y
Rev
iews
,
v
o
l.
1
5
,
n
o
.
1
,
p
p
.
1
8
6
–
2
0
2
,
Ja
n
.
2
0
1
1
.
[7
]
G
.
T
.
He
y
d
t,
"
El
e
c
tri
c
p
o
w
e
r
q
u
a
li
ty
:
A
tu
to
rial
in
tro
d
u
c
ti
o
n
,
"
IE
EE
Co
mp
u
ter
A
p
p
li
c
a
ti
o
n
s in
Po
we
r
,
v
o
l.
1
1
,
n
o
.
1
,
p
p
.
1
5
–
1
9
,
1
9
9
8
.
[8
]
C.
T
.
L
e
e
,
e
t
a
l
,
"
A
n
e
w
d
ro
o
p
c
o
n
tro
l
m
e
th
o
d
f
o
r
t
h
e
a
u
t
o
n
o
m
o
u
s
o
p
e
ra
ti
o
n
o
f
d
istri
b
u
ted
e
n
e
rg
y
re
so
u
rc
e
in
terf
a
c
e
c
o
n
v
e
rters
,
"
IEE
E
T
ra
n
s
a
c
ti
o
n
s o
n
Po
we
r E
lec
tro
n
ics
,
v
o
l.
2
8
,
n
o
.
4
,
p
p
.
1
9
8
0
–
1
9
9
3
,
A
p
r.
2
0
1
3
.
[9
]
Zh
e
n
g
b
o
,
M
a
,
L
i
L
in
c
h
u
a
n
,
a
n
d
Do
n
g
T
u
o
.
"
Ap
p
li
c
a
ti
o
n
o
f
a
c
o
mb
in
e
d
sy
ste
m
to
e
n
h
a
n
c
e
p
o
w
e
r
q
u
a
li
ty
in
a
n
isla
n
d
mic
ro
g
ri
d
.
"
In
P
o
w
e
r
En
g
in
e
e
rin
g
a
n
d
A
u
to
m
a
ti
o
n
Co
n
f
e
re
n
c
e
(P
EA
M
),
2
0
1
1
IEE
E
,
v
o
l.
3
,
p
p
.
3
2
6
-
3
3
0
.
IEE
E,
2
0
1
1
.
[1
0
]
Ro
y
,
Ra
ji
b
Ba
ra
n
,
a
n
d
M
d
Ru
h
u
l
Am
in
.
"
An
a
lys
is
o
f
Pro
p
o
se
d
C
o
n
tro
ll
in
g
T
o
p
o
lo
g
y
o
f
th
e
HVD
C
li
n
k
b
e
twee
n
Ba
n
g
la
d
e
sh
a
n
d
I
n
d
i
a
.
"
In
S
trate
g
ic
T
e
c
h
n
o
l
o
g
y
(IF
OST
),
2
0
1
4
9
th
In
tern
a
t
io
n
a
l
F
o
r
u
m
o
n
,
p
p
.
3
9
0
-
3
9
5
.
IEE
E
,
2
0
1
4
.
[1
1
]
J.
Ro
c
a
b
e
rt,
e
t
a
l
"
Co
n
tr
o
l
o
f
p
o
w
e
r
c
o
n
v
e
rters
in
A
C
M
icro
g
rid
s
,
"
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
P
o
we
r
El
e
c
tro
n
ics
,
v
o
l
.
2
7
,
n
o
.
1
1
,
p
p
.
4
7
3
4
–
4
7
4
9
,
No
v
.
2
0
1
2
.
[1
2
]
M
.
R.
A
m
in
a
n
d
R.
B.
Ro
y
,
“
De
sig
n
o
f
mic
ro
c
o
n
tr
o
ll
e
r
b
a
se
d
T
h
y
risto
r
Co
n
tro
ll
e
d
t
h
re
e
-
p
h
a
se
st
a
ti
c
v
o
lt
-
a
mp
e
re
re
a
c
ti
v
e
c
o
mp
e
n
sa
to
r”.
In
In
f
o
r
m
a
ti
c
s,
El
e
c
tro
n
ics
&
V
isio
n
(IC
IEV
),
2
0
1
4
In
tern
a
ti
o
n
a
l
Co
n
f
e
re
n
c
e
o
n
,
p
p
.
1
-
6
.
IEE
E,
2
0
1
4
[1
3
]
Am
in
M
R,
Ro
y
RB.
De
ter
min
a
ti
o
n
o
f
V
o
lu
me
o
f
C
a
p
a
c
it
o
r
B
a
n
k
fo
r
S
ta
t
ic
VA
R
Co
m
p
e
n
sa
t
o
r.
In
tern
a
ti
o
n
a
l
Jo
u
rn
a
l
o
f
El
e
c
tri
c
a
l
a
n
d
C
o
m
p
u
ter E
n
g
in
e
e
rin
g
.
2
0
1
4
A
u
g
1
;4
(
4
):
5
1
2
.
[1
4
]
S
.
S
h
in
n
a
k
a
,
"
A
n
o
v
e
l
f
a
st
-
trac
k
i
n
g
d
-
e
stim
a
ti
o
n
m
e
th
o
d
f
o
r
sin
g
l
e
-
p
h
a
se
sig
n
a
ls,
"
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
P
o
we
r
El
e
c
tro
n
ics
,
v
o
l.
2
6
,
n
o
.
4
,
p
p
.
1
0
8
1
–
1
0
8
8
,
A
p
r.
2
0
1
1
.
[1
5
]
Zh
o
n
g
QC,
W
e
is
s
G
.
S
ta
ti
c
sy
n
c
h
ro
n
o
u
s
g
e
n
e
ra
to
rs
fo
r
d
istrib
u
t
e
d
g
e
n
e
ra
ti
o
n
a
n
d
re
n
e
wa
b
le
e
n
e
rg
y
.
In
P
o
w
e
r
S
y
st
e
m
s Co
n
f
e
re
n
c
e
a
n
d
Ex
p
o
si
ti
o
n
,
2
0
0
9
.
P
S
CE'
0
9
.
IEE
E/
P
ES
2
0
0
9
M
a
r
1
5
(p
p
.
1
-
6
)
.
IEE
E
.
[1
6
]
Drie
se
n
J,
V
issc
h
e
r
K.
V
irt
u
a
l
s
y
n
c
h
ro
n
o
u
s
g
e
n
e
ra
to
rs.
In
Po
we
r
a
n
d
E
n
e
rg
y
S
o
c
iety
Ge
n
e
ra
l
M
e
e
ti
n
g
-
C
o
n
v
e
rs
io
n
a
n
d
De
li
v
e
ry
o
f
El
e
c
trica
l
E
n
e
rg
y
in
t
h
e
2
1
st Cen
t
u
ry
,
2
0
0
8
IEE
E
2
0
0
8
Ju
l
2
0
(p
p
.
1
-
3
)
.
IEE
E
.
[1
7
]
G
ra
in
g
e
r
JJ
,
S
tev
e
n
so
n
W
D.
P
o
w
e
r
s
y
ste
m
a
n
a
l
y
sis.
M
c
G
r
a
w
-
Hill
;
1
9
9
4
.
[1
8
]
C
h
a
p
m
a
n
S
.
El
e
c
tri
c
m
a
c
h
in
e
r
y
fu
n
d
a
m
e
n
tals.
T
a
ta M
c
G
ra
w
-
Hill
Ed
u
c
a
ti
o
n
;
2
0
0
5
.
B
I
O
G
RAP
H
I
E
S
O
F
AUTH
O
RS
M
d
.
Ru
h
u
l
Am
in
,
M
IEE
E,
w
a
s
b
o
r
n
in
1
9
8
9
,
is
p
u
rsin
g
M
a
ste
r
o
f
El
e
c
tri
c
a
l
En
g
in
e
e
rin
g
b
y
re
se
a
rc
h
in
Un
iv
e
rsiti
T
u
n
H
u
ss
e
in
On
n
M
a
lay
sisa
(U
T
HM),
M
a
lay
sia
.
P
re
v
io
u
sly
,
h
e
w
o
rk
e
d
a
s
a
L
e
c
tu
re
r
o
f
th
e
De
p
a
rtme
n
t
o
f
El
e
c
tri
c
a
l
a
n
d
El
e
c
tro
n
ic
En
g
i
n
e
e
rin
g
in
th
e
Un
iv
e
rsit
y
o
f
In
f
o
rm
a
ti
o
n
T
e
c
h
n
o
l
o
g
y
&
S
c
ien
c
e
s
(UIT
S
),
Dh
a
k
a
,
Ba
n
g
lad
e
sh
.
He
h
o
l
d
s
Ba
c
h
e
lo
r
o
f
S
c
ien
c
e
d
e
g
re
e
in
El
e
c
tri
c
a
l
a
n
d
El
e
c
tro
n
ic
E
n
g
i
n
e
e
rin
g
w
it
h
sp
e
c
ializa
ti
o
n
o
n
P
o
w
e
r
S
y
ste
m
s
En
g
in
e
e
rin
g
f
ro
m
UIT
S
in
2
0
1
2
.
He
h
a
s
a
n
u
m
b
e
r
o
f
p
u
b
li
c
a
ti
o
n
s
i
n
re
n
o
w
n
e
d
j
o
u
r
n
a
ls
in
c
lu
d
in
g
in
tern
a
ti
o
n
a
l
c
o
n
f
e
re
n
c
e
p
ro
c
e
e
d
in
g
s
in
h
is
a
re
a
o
f
e
x
p
e
rti
se
.
His
r
e
se
a
r
c
h
a
re
a
a
d
d
re
ss
e
s
th
e
issu
e
s
re
late
d
to
P
o
w
e
r
El
e
c
tro
n
ics
A
p
p
li
c
a
ti
o
n
s
a
n
d
Co
n
tro
l
;
Distrib
u
ted
G
e
n
e
r
a
ti
o
n
a
n
d
Co
n
tr
o
l;
E
lec
tri
c
V
e
h
icle
.
S
h
a
m
su
l
A
iza
m
Zu
lk
i
f
li
,
M
IEE
E,
is
w
o
rk
in
g
a
s
a
se
n
i
o
r
lec
tu
r
e
r
o
f
F
a
c
u
lt
y
o
f
El
e
c
tri
c
a
l
a
n
d
El
e
c
tro
n
ic
E
n
g
in
e
e
rin
g
(F
KE
E)
in
UT
HM.
He
is
a
lso
h
e
a
d
o
f
m
a
ste
r
p
ro
g
ra
m
in
F
KEE
.
He
o
b
tai
n
e
d
h
is
P
h
D
d
e
g
re
e
in
Co
n
t
ro
l
S
y
ste
m
f
ro
m
L
o
u
g
h
b
o
ro
u
g
h
Un
iv
e
rsit
y
,
Un
it
e
d
Kin
g
d
o
m
-
UK
,
2
0
1
2
.
He
a
lso
c
o
m
p
lete
d
h
is
M
a
ste
r
El
e
c
ti
c
a
l
P
o
w
e
r
En
g
in
e
rin
g
m
a
jo
r
in
c
o
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