PInter
nation
al Journ
a
l of P
o
wer El
ectronics and Drive
Sys
t
em
(IJPE
D
S)
V
o
l.
5, N
o
. 3
,
Febr
u
a
r
y
201
5,
pp
. 28
3
~
29
2
I
S
SN
: 208
8-8
6
9
4
2
83
Jo
urn
a
l
h
o
me
pa
ge
: h
ttp
://iaesjo
u
r
na
l.com/
o
n
lin
e/ind
e
x.ph
p
/
IJPEDS
Implementation of PI Controller for 4
Ф
SRM Drive Using
TMS320F28335
M
e
ka
la
.N
, Mu
n
i
raj
.
C
Ele
c
tri
cal
Drives
and Con
t
rol
Lab
o
ratar
y
, De
pa
rtme
nt
of
E
l
ec
t
r
ica
l
and Electronics
Engineerin
g,
K.
S.
R
a
n
g
a
sa
my
Co
l
l
e
ge
of Technolog
y
Article Info
A
B
STRAC
T
Article histo
r
y:
Received Nov 30, 2014
Rev
i
sed
Jan 19, 201
5
Accepte
d
Ja
n 27, 2015
This pap
e
r pr
e
s
ents the
exp
e
r
i
m
e
nt
al investigation
of DSP based 4
Ф
Switched Reluctance Motor (SRM) Driv
e. SRM is a doubly
-
salient, singly
-
excited machin
e and having v
e
r
y
simple
constru
c
tion
,
has a
low inertia and
allows an extr
emely
high-speed
operatio
n
.
Th
e control s
y
stem of SRM i
s
highly
complex
due to non
lin
ear natur
e
. In
s
u
ch
a s
y
s
t
em
for im
plem
enting
control algorith
m needs high sp
eed processor. In this work TMS320F28335
DSP processor i
s
used to implement th
e inn
e
r loop PI current controller an
d
outer loop PI speed contro
ller
.
Th
e
TMS320F28335 is highly
integr
ated
, high
performance so
lution for
challenging co
n
t
rol applications.
The var
i
ous
experim
e
nt
al t
e
s
t
s
are carr
i
ed out
in 1 HP 4
Ф
SR
M. The exper
i
mental results
are repor
ted in
order to verif
y
the stead
y
state, tr
ansient and
robustness
perform
ance
of
t
h
e con
t
roll
er.
Keyword:
Dig
ital Sign
al
Processor
PI C
ont
rol
l
e
r
Pu
lse Wid
t
h
M
o
du
latio
n
Switche
d Reluctance Mot
o
r
Copyright ©
201
5 Institut
e
o
f
Ad
vanced
Engin
eer
ing and S
c
i
e
nce.
All rights re
se
rve
d
.
Co
rresp
ond
i
ng
Autho
r
:
Mekala.N
,
Depa
rtm
e
nt of
Electrical an
d Electronic
Engineering,
K.S.Rangasam
y
College of
Tech
nolog
y
,
KSR Kalvi Nag
a
r, Tiru
ch
engode, Namakkal-6372
15.
Em
a
il: n
a
tarajmek
ala@g
m
ail
.
co
m
1
.
IN
TR
OD
UC
TI
ON
The SR
M
ha
v
e
a sim
p
l
e
st
const
r
uct
i
on
of a
l
l
el
ect
ri
cal
m
a
chines a
nd
only th
e st
at
or ha
s wi
n
d
i
n
gs.
The r
o
t
o
r co
nt
ai
ns n
o
pe
rm
anent
m
a
gnet
s
.
It
con
s
i
s
t
s
of
s
t
eel la
minations stacked
on
to a sh
aft. Th
e
ro
tor is
alig
n
e
d
wh
en
ev
er th
e
d
i
am
e
t
rically o
p
p
o
s
ite stato
r
po
les are ex
cited
.
Th
e m
a
g
n
e
tic circu
it ro
tating
p
a
rt
p
r
efers to co
m
e
to
t
h
e m
i
n
i
m
u
m
relu
ctan
ce po
sitio
n at t
h
e i
n
stan
ce of ex
citatio
n and
two ro
tor
po
les are
alig
n
e
d to
t
h
e t
w
o stato
r
po
les, th
e
o
t
h
e
r set
o
f
ro
to
r po
les i
s
ou
t of align
m
en
t with resp
ect to
a d
i
fferen
t
set o
f
stato
r
p
o
l
es [1
]. Th
en, th
is set
o
f
stato
r
po
les
is ex
cited
t
o
b
r
in
g
t
h
e
ro
t
o
r po
les in
t
o
alignmen
t. It is
b
ecau
s
e
of
th
is si
m
p
le
m
e
ch
an
ical co
n
s
t
r
u
c
tio
n th
at SR
Ms carry th
e l
o
w m
a
n
u
facturin
g
co
st, an
d also
it p
r
ov
id
es h
i
gh
reliab
ility, wide-sp
e
ed
rang
e
at co
n
s
tan
t
power, fast
d
y
n
a
mic resp
on
se,
rugg
edn
e
ss and
fau
lt-to
lerance, 80
%
effi
ci
ency
de
p
e
ndi
ng
o
n
t
h
e
appl
i
cat
i
o
n an
d hi
gh st
a
r
t
i
n
g
t
o
rq
ue
[2]
-
[
3]
. Thi
s
i
n
t
u
r
n
has m
o
t
i
v
at
ed a l
a
rge
am
ount
of
rese
arch
o
n
SR
M
s
i
n
t
h
e l
a
st
deca
de. T
h
e SR
M
ope
rat
i
o
n i
s
ex
t
r
em
el
y
safe and t
h
e m
o
t
o
r i
s
use
d
in industrial a
n
d dom
e
stic a
pplica
tions like robotics, ae
rospace,
was
h
in
g m
achine a
n
d also
vac
uum
cleaner.
In
[1
1]
, a spee
d co
nt
r
o
l
of
4
Ф
8
/
6
SRM
usin
g
D
SP TM
S32
0
F240
7A
w
a
s pro
p
o
s
ed
. Th
e conv
er
ter is f
e
d
through a DC split converte
r
was disc
usse
d in [7]. The
spee
d is regul
at
ed through a
P
W
M control
l
er in
whic
h, the a
v
e
r
age
phase vo
l
t
age d
u
ri
ng t
h
e
con
d
u
ct
i
on
pe
ri
o
d
i
s
co
nt
r
o
l
l
e
d by
vary
i
n
g
t
h
e d
u
t
y
rat
i
o
of t
h
e
swi
t
c
hes.
The
im
pl
em
ent
a
t
i
o
n
of s
p
ee
d c
o
nt
r
o
l
l
e
r f
o
r
sw
i
t
c
hed rel
u
ct
an
ce m
o
t
o
r dri
v
e usi
n
g
fuzzy
l
ogi
c
cont
rol
l
e
r
was
pr
o
pose
d
i
n
[1
4]
. Thi
s
s
p
ee
d
cont
rol
l
e
r s
how th
at th
e FLC is
m
o
re robu
st and
,
h
e
n
c
e it is
a
su
itab
l
e
rep
l
ace
m
en
t o
f
th
e co
nv
en
tio
n
a
l
con
t
ro
llers
for
the h
i
gh-
p
e
r
f
or
man
ce SRM
dr
iv
e applications.
In [9],
A Ne
w R
a
nd
om
Swi
t
c
hi
ng
Tech
ni
q
u
e
us
i
ng
DSP
TM
S
3
2
0
F
2
81
2
was
pres
ent
e
d. T
h
i
s
t
ech
ni
q
u
e
bri
n
g
s
acoustic noise
decrease by
com
b
ining the
varying tu
rn
-o
n,
tu
rn
-of
f
an
g
l
e and
RPW
M
.
Th
e ex
per
i
m
e
n
t
al
resul
t
s
s
h
ow
t
h
at
t
h
e ha
rm
oni
c i
n
t
e
nsi
t
y
o
f
o
u
t
p
ut
v
o
l
t
a
ge
i
s
bet
t
e
r t
h
an
ot
her
co
n
v
ent
i
o
n
a
l
m
e
t
hods
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
SN
:
2
088
-86
94
I
J
PED
S
Vo
l.
5
,
No
.
3
,
Feb
r
uar
y
201
5 :
2
83 –
29
2
28
4
In
t
h
is
work the PI con
t
ro
ller
is u
s
ed
for co
ntro
l th
e
sp
eed
o
f
t
h
e m
o
to
r.
Th
e con
t
ro
l al
g
o
rith
m
h
a
v
e
d
e
v
e
l
o
p
e
d
and tested
b
y
TMS3
20
F28
335 p
r
o
cessor
.
The exp
e
r
i
m
e
n
t
al
an
alysis is per
f
o
r
m
e
d
to
test th
e
co
n
t
ro
ller
with resp
ect t
o
stead
y
stat
e, transien
t. The ro
bu
stn
e
ss is th
e
co
n
t
ro
ller also tested
b
y
v
a
ryin
g
th
e
l
o
ad t
o
r
que
. T
h
i
s
pa
pe
r i
s
o
r
gani
ze
d as
fol
l
ows
,
bri
e
f a
b
o
u
t
SR
M
an
d c
o
n
v
e
r
t
e
r i
n
s
e
c
t
i
on
1 &
2,
Se
ct
i
on
3
d
i
scu
s
ses
th
e
TMS3
20
F28
335
pr
o
cessor
.
Sectio
n
4
d
i
scu
sses th
e con
t
ro
l str
u
ct
u
r
e
of
SR
M. Th
e ex
p
e
r
i
men
t
al
set
up a
nd i
m
plem
ent
a
t
i
on of
DSP
pr
ocess
o
r
di
scusse
d i
n
s
ect
i
on 5. E
x
pe
ri
m
e
nt
al resul
t
s
di
scusse
d i
n
sect
i
o
n
6 a
n
d
co
ncl
u
di
ng
rem
a
rks i
n
s
ect
i
on
7.
2. SWIT
CHE
D
RELU
CTA
NCE M
O
TO
R DRI
VE
The
SRM is el
ectrom
a
gnetic
and electrodyna
m
i
cs equi
pm
ent that c
o
nve
rt
s the electrical
energy int
o
mechanical energy.
A Switched Rel
u
ct
anc
e
or Va
riable Reluctance
M
o
to
r does
not contain any
pe
rm
anent
m
a
gnet
s
. T
h
e
s
t
at
or i
s
si
m
i
l
a
r
t
o
a
br
us
hl
ess
dc m
o
t
o
r.
H
o
wev
e
r, th
e ro
tor
co
nsists on
ly of iro
n
lamin
a
tes. Th
e
iron
ro
to
r is at
tracted
to
th
e e
n
ergized stator pole. T
h
e pol
a
rity of th
e stato
r
po
le do
es
no
t m
a
tter. To
rq
u
e
is
pr
o
duce
d
a
s
a
resul
t
of
t
h
e
at
t
r
act
i
on
bet
w
e
e
n t
h
e el
ect
r
o
mag
n
e
t an
d the iron
ro
to
r.
It
is a dou
b
l
y sal
i
en
t and
si
ngl
y
exci
t
e
d
m
achi
n
e i
n
w
h
i
c
h t
h
e el
ect
ro
m
a
gnet
i
c
t
o
r
q
u
e
i
s
devel
o
pe
d
due t
o
va
ri
abl
e
rel
u
ct
ance
pri
n
ci
pl
e
[1
].
Th
e SRM
h
a
s st
rong
sim
i
larity to
series
ex
cited
DC
a
n
d sy
nch
r
o
n
o
u
s
rel
u
ct
ance
m
a
chi
n
es
,
but
i
n
c
o
nt
r
o
l
,
it is very re
m
o
tely connecte
d
to these m
achines, and th
ere
f
o
r
e anal
o
g
ous c
ont
rol
de
vel
o
p
m
ent
i
s
not
pos
si
bl
e
.
Th
e Fi
gu
r
e
1
sh
ow
s t
h
e
D
oub
ly Salien
t
Stru
ctur
e
o
f
8
/
6 SRM Driv
e. The sp
ecification o
f
SRM
u
s
ed
in
th
is
wo
rk
as
gi
ve
n i
n
t
a
bl
e
1.
Fi
gu
re
1.
D
o
ub
l
y
sal
i
e
nt
st
ruct
ure
o
f
8/
6
SR
M
dri
v
e
Ta
ble 1. S
p
ecifications
of SRM
dri
v
e
Para
m
e
ters
Valu
es
Nu
m
b
er
of Phases
4 phase
Nu
m
b
er
of Stator
Poles
8
Nu
m
b
e
r
of Rotor
Poles
6
Rated speed
4000 Rpm
Rated tor
que
3.
5 Nm
No
m
i
nal Phase Re
sistance
1.2
Ω
Aligned I
nductance
40
m
H
Unaligned I
nductance
8
m
H
Rated Cur
r
e
nt
3A
Rated Voltage
380V
2.1. Power Conver
ter
Th
e sp
lit-lin
k
co
nv
erter is con
s
ists
o
f
IGBT
switch
e
s
and
d
i
od
es.
If
b
o
t
h
th
e
d
e
v
i
ces of sam
e
leg
are
ON t
h
e
v
o
ltage is app
lied
to th
e wi
n
d
i
n
g
of m
o
to
r.
If
bo
th
th
e
switch
e
s are
o
p
e
n
,
t
h
e freewh
eelin
g
d
i
ode
main
tain
s th
e cu
rren
t
flow in th
e
wind
ing
.
If
an
y of th
e swit
ch
es is
ON and
o
t
h
e
r on
e i
n
OFF
cond
itio
n, th
en
th
e freewh
eelin
g d
i
o
d
e
prov
i
d
es sho
r
t circuit p
a
th
o
f
t
h
e cu
rren
t. Th
e sp
lit-lin
k
co
nv
ert
e
r circu
it is sho
w
n
i
n
the Figure
2.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
PED
S
I
S
SN
:
208
8-8
6
9
4
Im
pl
eme
n
t
a
t
i
o
n
of
PI
C
o
nt
rol
l
er f
o
r
4
Ф
SRM Drive
Usi
n
g TMS320F28335 (Mekala.N)
28
5
Fig
u
re
2
.
Sp
lit-lin
k
co
nv
erter
circu
it fo
r SR
M d
r
i
v
e
Th
e
supp
ly d
c
v
o
ltag
e
Vd
c,
by u
tilizin
g
on
ly h
a
lf its v
a
l
u
e at an
y
ti
m
e
an
d also th
e curren
ts in
t
h
e
wi
n
d
i
n
gs a
r
e
b
a
l
a
nced.
It
i
s
u
s
ed t
o
m
i
nim
i
zi
ng t
h
e c
o
st
of
t
h
e c
o
nve
rt
er.
Thi
s
t
y
pe
of
po
we
r c
o
n
v
ert
e
r
has
hi
g
h
effi
ci
ency
and m
o
re out
p
u
t
po
wer t
h
a
n
any
ot
her
co
unter
p
a
r
t
und
er
heav
y lo
ad
conditio
n
s
an
d
/
o
r
in h
i
gh
spee
d ope
rat
i
o
n.
3
.
TMS320
F28
335
PR
OC
E
SSOR
Th
e TMS320F28
335
is h
i
g
h
l
y
in
teg
r
ated
, h
i
gh-
p
e
r
f
orman
ce
so
l
u
tion
s
f
o
r
d
e
m
a
n
d
i
ng
co
n
t
r
o
l
appl
i
cat
i
o
ns. T
h
e TM
S
3
20
F2
83
3
5
i
s
a st
a
n
dal
o
ne
devel
o
pm
ent
pl
at
for
m
t
h
at
enabl
e
s
use
r
t
o
e
v
al
u
a
t
e
an
d
devel
o
p
a
ppl
i
c
at
i
ons.
It
has
a
wi
de
ra
n
g
e
of
ap
pl
i
cat
i
on e
n
vi
r
onm
ent
s
. T
h
e TM
S
3
20
F2
83
3
5
i
s
desi
gn
ed t
o
wo
rk
wi
t
h
C
o
de C
o
m
pose
r
St
udi
o. C
ode
C
o
m
poser c
o
m
m
uni
cat
es w
i
t
h
t
h
e
boa
rd
t
h
r
o
ug
h a
n
On
B
o
ar
d
JTAG em
ulator. T
h
e
functional architecture
o
f
TMS320
F28
335
is sho
w
n
in
Figur
e
3
.
Fig
u
r
e
3
.
Ar
ch
i
t
ectu
r
e
o
f
TMS3
20
F28
335
The c
ont
rol
l
e
r
havi
ng
t
h
e
key
feat
u
r
es,
A Te
xas I
n
st
rum
e
nt
s TM
S3
2
0
F
2
8
3
3
5
de
vi
ce wi
t
h
a
Di
gi
t
a
l
Si
gnal
C
o
nt
r
o
l
l
e
r and ca
n be
ope
rat
e
d u
p
t
o
1
50 M
H
z
fr
eque
ncy
,
si
n
g
l
e
vol
t
a
ge p
o
w
er su
ppl
y
(+
5
V
) an
d
Co
nf
igu
r
ab
le
bo
o
t
l
o
ad op
tions.
4. SR
M CO
N
T
ROL
ST
RU
CTU
R
E
Th
e SRM con
t
ro
l stru
cture is sh
own
in
Figu
re
4
.
It con
s
ists o
f
inn
e
r loop
PI cu
rren
t con
t
ro
ller and
out
e
r
l
o
op
P
I
s
p
eed
co
nt
r
o
l
l
e
r
.
The
sp
eed c
o
m
m
a
nd
ω
* is c
o
m
p
ared t
o
the
spee
d signal
ω
t
o
pr
o
duce
a
spee
d
err
o
r si
g
n
al
. T
h
i
s
si
gnal
i
s
p
r
oces
sed t
h
ro
u
gh a p
r
o
p
o
rt
i
o
nal
-
pl
us
-i
nt
eg
r
a
l
(PI) co
nt
r
o
l
l
er t
o
det
e
rm
ine t
h
e
torque
comm
a
n
d. T
h
e a
r
m
a
ture c
u
rren
t c
o
mmand i
*
is c
o
m
p
ared to t
h
e
act
ual
arm
a
t
u
re com
m
and i
t
o
have
a
zero c
u
rre
nt
er
ro
r. T
h
e P
I
c
o
nt
r
o
l
l
e
r p
r
o
d
u
c
e
s t
h
e eq
ui
val
e
nt
co
nt
r
o
l
si
g
n
a
l
whe
n
a
n
er
r
o
r si
gnal
i
s
oc
cur
r
ed
.
The c
o
nt
rol
si
g
n
al
he
nce m
odi
fies the t
r
iggeri
ng angle
α
to be sen
t
t
o
th
e con
v
e
rter
fo
r im
p
l
e
m
en
tatio
n
.
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.
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r
uar
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5 :
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83 –
29
2
28
6
Figure
4.
PI c
o
ntrol
structure
of
SRM
dri
v
e
4.
1.
Desi
gn S
p
eed C
o
n
t
r
o
l
l
er
The re
fere
nce spee
d (
ω
*) is com
p
ared to the spee
d signa
l
(
ω
) to produce a speed
error signal (e
).
The
n
I* i
s
ach
i
e
ved by
i
n
t
e
g
r
al
gai
n
(
K
I
)
,
pr
o
p
o
r
t
i
onal
g
a
i
n
(K
p) a
n
d speed e
r
r
o
r
(e).
The PI
based
spee
d
cont
rol
l
e
r i
s
sh
ow
n i
n
Fi
gu
re
5.
Figure
5.
PI
base
d s
p
ee
d c
ont
roller
Whe
r
e,
Ki: In
teg
r
al
g
a
i
n
Kp
: Pro
portio
nal
g
a
in
e: Er
ro
r
eω
∗
ω
Th
e
p
r
op
ortional an
d in
teg
r
al
term
s is g
i
v
e
n
b
y
:
I
∗
e
k
ek
4.
2.
Desi
gn
C
u
rre
nt Co
ntr
o
l
l
er
The refe
rence current (I*)
is
com
p
ared to
the actual c
u
rrent signal
(I
) to
p
r
od
u
c
e a cu
rr
en
t er
ror
si
gnal
(e
1)
. Th
en u i
s
achi
e
ve
d by
i
n
t
e
g
r
al
g
a
i
n
(K
I1
),
pr
o
p
o
r
t
i
o
nal
gai
n
(K
p1
) an
d er
ro
r (e1
)
. T
h
e PI
base
d
Cu
rren
t C
o
n
t
roller is shown in Figu
re 6.
Fi
gu
re
6.
PI
ba
sed c
u
r
r
e
n
t
co
n
t
rol
l
e
r
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6
9
4
Im
pl
eme
n
t
a
t
i
o
n
of
PI
C
o
nt
rol
l
er f
o
r
4
Ф
SRM Drive
Usi
n
g TMS320F28335 (Mekala.N)
28
7
e
I
∗
I
uK
e
e
K
5.
E
X
PE
RI
M
E
NTAL SET
U
P
Th
e d
e
v
e
lop
m
en
t co
n
t
ro
l syste
m
is tested
o
n
D
SP
base
d SR
M
dri
v
e set
up i
n
El
ect
ri
ca
l
Dri
v
es a
n
d
Co
n
t
ro
l labo
rato
ry at K.S.Ran
g
a
sam
y
co
lle
g
e
of techno
log
y
. Th
e SRM
is a 4
Ф
12
0
V
,
1H
p, 8/
6
p
r
ot
ot
y
p
e
m
achine. A
di
ode
rectifier with sp
lit-link c
o
nve
r
ter is ass
e
m
b
led in a S
R
M power m
odule.
An enc
o
der type
p
o
s
ition
sen
s
or was
u
s
ed
to
p
r
ov
id
e accu
r
ate in
form
at
io
n for th
e ang
l
e co
n
t
ro
l as in
th
e form
o
f
vo
ltag
e
p
u
l
ses. A
shunt D
C
m
o
to
r
w
a
s co
up
led
in
the SRM sh
af
t. It ex
citatio
n
is c
o
n
t
r
o
lled
b
y
3
0
V
D
C
po
w
e
r
su
pp
ly
and
gene
rat
o
r r
e
si
st
or t
o
a l
o
ad. Hal
l
-
e
ffect current sensors are use
d
for
measu
r
i
n
g
th
e curren
t
. A lo
ad
cell is
u
s
ed
to m
eas
u
r
e th
e t
o
rqu
e
and
its
v
a
lu
es are ind
i
cated
in torqu
e
ind
i
cato
r
. Th
e t
o
tal driv
e
syste
m
is
cont
rol
l
e
d
by
DSP
3
20
F2
8
3
3
5
p
r
ocess
o
r.
T
h
e bl
ock
di
a
g
r
a
m
of E
xpe
ri
m
e
nt
al
set
up a
n
d
DSP c
o
nt
r
o
l
l
e
d SR
M
dri
v
e i
s
s
h
ow
n
i
n
Fi
g
u
r
e
7.
Fi
gu
re
7.
B
l
oc
k
di
ag
ram
of S
R
M
dri
v
e
5.1. I
m
plementa
tion of P
I
Controller
The PI s
p
eed
cont
rol algorit
h
m
source code has
bee
n
de
vel
o
ped
usi
n
g
code c
o
m
pose
r
st
udi
o an
d
d
o
wn
lo
ad
ed
in to
th
e targ
et TMS32
0
F283
35
p
r
o
cesso
r. T
h
e PC
m
achine and the target process
o
r were
i
n
t
e
rface
d usi
n
g USB
ca
bl
e. The p
h
o
t
o
gra
p
h of t
h
e ex
peri
m
e
nt
al
set
up i
s
sho
w
n i
n
Fi
g
u
re
9. Fl
o
w
ch
art
fo
r
th
e v
a
r
i
ou
s
step
s i
n
vo
lv
ed
i
n
th
e im
p
l
e
m
en
t
a
tio
n
o
f
PI contr
o
l algo
r
i
t
h
m
i
s
show
n in
Figu
r
e
8.
Fi
gu
re 8.
Im
pl
em
ent
a
t
i
on of PI
c
o
nt
rol
Al
g
o
ri
t
h
m
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.
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Feb
r
uar
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5 :
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28
8
6
.
EX
PER
I
M
E
NTA
L
R
E
SU
LTS AN
D DISC
USSION
Th
e
v
a
ri
o
u
s exp
e
rim
e
n
t
al resu
lts are
ob
tain
ed
fro
m
ex
p
e
ri
men
t
al setu
p
at
d
i
fferen
t lo
ad
co
nd
itio
ns.
The stea
dy state analysis, T
r
a
n
sient a
n
alysis
and robust
n
ess
analysis are
pe
rform
e
d.
Fi
gu
re 9.
Ex
pe
ri
m
e
nt
al
set
up of
DS
P base
d SR
M
dri
v
e
6.
1.
Ste
a
d
y
S
t
ate
An
al
ysi
s
a)
C
o
n
s
ta
nt
Sp
eed
at
N
o
Loa
d
Fig
u
r
e
10
. Sp
eed
r
e
spon
se
at N
o
Lo
ad
b)
Constan
t
S
p
ee
d with
Constant T
o
rque
Fi
gu
re
1
1
.
Spe
e
d R
e
s
p
o
n
se
w
i
t
h
C
o
nst
a
nt
T
o
r
q
ue
Evaluation Warning : The document was created with Spire.PDF for Python.
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6
9
4
Im
pl
eme
n
t
a
t
i
o
n
of
PI
C
o
nt
rol
l
er f
o
r
4
Ф
SRM Drive
Usi
n
g TMS320F28335 (Mekala.N)
28
9
c)
Constan
t
S
p
ee
d with
Vari
ab
le Torque
Figu
re
1
2
.
Spe
e
d Res
p
o
n
se
w
ith Va
riable T
o
rq
ue
Th
e stead
y state an
alyses respo
n
s
es are sho
w
n
in
Fi
g
u
re 10
- 12
. In
stead
y
state an
alysis, in
itially
th
e
m
o
tor spee
d
will reaches
pea
k
value
and t
h
en attain t
h
e
set spee
d
value
.
It
will take more
ti
m
e
to rea
c
h the
actual spee
d.
6.
2. T
r
ansi
en
t
An
al
ysi
s
a)
Speed Ch
an
ge
s
a
t
No
L
o
ad
Figure
13. T
r
a
n
sient Res
p
ons
e at No L
o
a
d
b)
Speed Ch
an
ge
s
with Constant
T
o
rque
Fi
gu
re
1
4
. T
r
a
n
si
ent
R
e
s
p
ons
e wi
t
h
C
o
nst
a
n
t
Tor
q
ue
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.
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,
Feb
r
uar
y
201
5 :
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83 –
29
2
29
0
c)
Speed Change
s
with Vari
abl
e
Torque
Fi
gu
re
1
5
. T
r
a
n
si
ent
R
e
s
p
ons
e wi
t
h
Va
ri
abl
e
To
rq
ue
Th
e tran
sien
t
an
alysis resp
on
ses are sho
w
n
in th
e
Figu
re 13
-1
5.
I
n
this syste
m
th
e sp
eed
of
t
h
e
m
o
t
o
r t
o
be co
nt
i
n
u
o
u
sl
y
cha
nge
d an
d t
o
rq
u
e
t
o
be co
ns
tan
t/v
ariab
l
e. During
th
at p
e
ri
od
sp
eed
of th
e
m
o
to
r
will b
e
redu
ced
an
d th
en
attain
th
e actu
a
l
v
a
l
u
e sho
w
n
i
n
the Figu
re 14
-15
.
6.
3. R
o
bus
tne
ss
A
n
al
ysi
s
a)
Sudde
n Load
Injec
t
ion
Fig
u
r
e
16
. R
o
bu
stn
e
ss Resp
onse at Su
dd
en
Lo
ad Inj
ectio
n
b)
Sudde
n Load
Rejec
t
ion
Fig
u
r
e
17
. R
o
bu
stn
e
ss Resp
onse at Su
dd
en
Lo
ad Rej
ection
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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PED
S
I
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:
208
8-8
6
9
4
Im
pl
eme
n
t
a
t
i
o
n
of
PI
C
o
nt
rol
l
er f
o
r
4
Ф
SRM Drive
Usi
n
g TMS320F28335 (Mekala.N)
29
1
I
n
r
obu
stn
e
ss
an
alysis is to
f
i
nd
th
e t
o
ughn
ess an
d str
e
ng
th
o
f
t
h
e co
nv
en
tion
a
l SR
M d
r
ive. Th
e
ro
b
u
st
ness
res
p
ons
es a
r
e s
h
o
w
n i
n
t
h
e
Fi
g
u
re
16
-
1
7
.
7.
CO
NCL
U
S
ION
I
n
th
is
wo
rk
TMS32
0
F283
35
DSP pro
cesso
r
is
u
s
ed
to i
m
p
l
e
m
en
t th
e in
n
e
r lo
op
PI curren
t
cont
rol
l
e
r a
nd
out
e
r
l
o
o
p
P
I
spee
d co
nt
r
o
l
l
e
r. T
h
e TM
S3
20
F2
8
3
3
5
i
s
h
i
ghl
y
i
n
t
e
gr
at
ed,
hi
g
h
pe
rf
or
m
a
nce
so
lu
tion
for ch
allen
g
i
n
g
con
t
ro
l app
licati
o
n
s
. Th
is pr
oject can serve
a com
p
lete literature
survey about
vari
ous e
x
peri
m
e
nt
al
resul
t
s
fo
r det
e
rm
i
n
at
i
on o
f
el
ect
rom
a
gnet
i
c
ch
aract
eri
s
t
i
c
of
SR
M
.
The
v
a
ri
o
u
s
expe
rim
e
ntal tests are ca
rrie
d
out in
1 HP 4
Ф
SRM
.
The
e
xpe
rim
e
ntal results are
re
p
o
rt
ed in
o
r
der
to
verify
the steady stat
e, transient a
n
d
ro
b
u
st
nes
s
pe
r
f
o
r
m
a
nce of t
h
e co
nt
rol
l
e
r
.
It
i
s
ho
pe
d t
h
at
t
h
i
s
p
r
op
ose
d
m
e
t
hod
and the
discus
sion on how to furt
he
r im
prove the m
easurem
ent accuracy
and how to reduce the
noise and
vib
r
ation
m
a
y
serve
as a
hel
p
ful
refe
ren
ce f
o
r
resea
r
ch
ers
to
precisely d
e
termin
e th
e m
a
g
n
e
tic ch
aracteristics
of
t
h
e
SR
M
.
REFERE
NC
ES
[1]
Adrian David Cheok,
et al
.
DSP-Based Aut
o
mated Error-R
educing
Flux-Linkage-Measure
ment Method for
Switched R
e
luc
t
ance
Motors.
I
E
EE Transactions
on Instrumentation and M
e
asurement
. 2007
; 56(6
)
: 2245-2253.
[2]
Abdel-Karim Daud, Basi
m Alsay
i
d. DSP Based
Simulator for Speed C
ontrol of the S
y
nchronous Reluctance Moto
r
Using H
y
ster
esis Current Controller.
En
ergy and
Power Eng
i
neering.
2013; 363-3
71.
[3]
Am
it Kum
a
r
Jain,
et al
.
D
y
n
a
m
i
c M
odeling
,
Ex
perim
e
nta
l
Char
act
eriz
ation
,
and
Verific
a
tion for
S
R
M
Operation
with Sim
u
ltan
e
o
u
s Two-Phase E
x
cit
a
tion
.
I
EEE Transactions
on I
ndustrial Electronics.
2006
; 53(
4): 1238-1249.
[4]
Bahimi,
et
al
.
Design of Adjustable Spe
e
d Switched R
e
luc
t
a
n
ce Motor Driv
es.
IEEE International Conference
Industrial Electronics Society.
20
01; 1577-1582.
[5]
Chris and S.
Ed
rington.
Investig
ation of
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BIOGRAP
HI
ES
OF AUTH
ORS
Mekala.N
was b
o
rn in Erode, in1
990. She r
e
ceived the
B
.
E degr
ee in electrical eng
i
neer
ing from
K.S.Rangasam
y
College of Tech
nolog
y
,
Tiru
ch
engode, Tamiln
adu in 2009 and currently
do
ing
M.E (Power Electronics and Drives) at K.S.Ra
n
g
asam
y
Colleg
e
of Technolog
y
,
Tiruchengod
e,
Tamilnadu
in
20
13.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
SN
:
2
088
-86
94
I
J
PED
S
Vo
l.
5
,
No
.
3
,
Feb
r
uar
y
201
5 :
2
83 –
29
2
29
2
M
unir
a
j.
C
was born in India, in 1980. He received
B.E
., M.E
and Ph.D, degre
e
s in Electr
i
c
a
l
Engineering
at B
h
arath
i
y
a
r Univ
ersity
and
Anna
University
in
20
03, 2006
and 20
12 respectively
.
He has
been working as
As
s
o
ciate profes
s
o
r in
K.S. Rangasam
y
colleg
e
of Tech
nolog
y
in th
e
Department of Electrical and
El
ectronics Engineering. His resear
ches interests in
clude condition
monitoring of p
o
wer apparatus and s
y
stems, power
electronics
and drives, signal processing and
intel
ligen
ce
con
t
roller
appl
ic
atio
n in
el
ectr
i
ca
l dr
i
v
es.
Evaluation Warning : The document was created with Spire.PDF for Python.