Electric Machines and Drives Part 2 docx
Electric Machines and Drives Part 2 docx
... 89.5
7.5 10 88.1 88.7 87 .2 11 15 90 .2 91.0 90 .2
11 15 89.4 898.0 88.7 15 20 90 .2 91.0 90 .2
15 20 90.3 90.6 89.7 18.5 25 91.0 92. 4 91.7
18.5 25 90.9 91 .2 90.4 22 30 91.0 92. 4 91.7
22 30 91.3 91.6 90.9 ... 89.5
15 20 88.7 88.7 87.7 15 20 89.5 90.5 90 .2
18.5 25 89.3 89.3 88.6 18.5 25 89.5 91.0 91.0
22 30 89.9 89.9 89 .2 22 30 90 .2 91.7 91.7
30 40 90.7 90.7 90 .2 3...
Electric Machines and Drives part 11 docx
... with compensation.
Electric Machines and Drives
20 2
0
10
20
30
40
i
DC
[A]
0 0.005 0.01 0.015 0. 02
540
550
560
570
580
v
DC
[V]
time [s]
Fig. 9. DC-link voltage and current under unbalanced ... power at all times:
Electric Machines and Drives
20 6
0
10
20
30
40
i
DC
[A]
0 0.005 0.01 0.015 0. 02
540
550
560
570
580
v
DC
[V]
time [s]
Fig. 21 . DC...
Electric Machines and Drives Part 1 pot
... standard “Rotating electrical machines – Part 2: Methods for
determining losses and efficiency of rotating electrical machinery from tests”. The standard
first introduced in 19 72 and updated in ... be obtained from orders@intechweb.org
Electric Machines and Drives, Edited by Miroslav Chomat
p. cm.
ISBN 978-953-307-548-8
ELECTRIC MACHINES
AND DRIVES
Edited by Mir...
Electric Machines and Drives part 6 ppt
... with Torque Compensation
Electric Machines and Drives
92
0 1 2 3 4 5 6
-20 0
0
20 0
Time [ s ]
Speed [ rad/s ]
0 1 2 3 4 5 6
0
0 .2
0.4
Time [ s ]
Flux [ Wb ]
0 1 2 3 4 5 6
-10
0
10
Time [ ... θ
0
sin θ
0
cos θ
0
and K
=
2
3
⎡
⎢
⎣
1
−
1
2
−
1
2
0
−
√
3
2
−
√
3
2
⎤
⎥
⎦
.
x
qd
and x
αβ
stand for two-dimensional voltage flux and stator current vector,...
Electric Machines and Drives part 7 ppt
... R
−1
BPL
−1
(θ)=
1
R
1
Δ
⎡
⎣
L
T
12
L
22
L
23
000
000
⎤
⎦
( 42)
Q is positive semi-definite if:
X
T
QX ≥ 0 X ∈
6×1
X
T
QX =
1
R
1
Δ
X
T
⎡
⎣
L
T
12
L
22
L
23
000
000
⎤
⎦
X (43)
=
1
R
1
Δ
X
T
⎡
⎢
⎣
L
T
12
1
2
L
22
1
2
L
23
1
2
L
T
22
00
1
2
L
T
23
00
⎤
⎥
⎦
... –1008.
1 12
Electric Machines and Drives
• Consequence of (27 ) and (28...
Electric Machines and Drives part 8 pdf
... ω
mM
,
ˆ
ω
mM
(c)
ˆ
τ
ML
.
23 0 23 5 24 0 24 5 25 0 25 5
500
1000
1500
t(s)
ω
mM
ref
& ω
mM
(rpm)
23 0 23 5 24 0 24 5 25 0 25 5
500
1000
1500
20 00
25 00
t(s)
ω
mG
(rpm)
24 1.35 24 1.4 24 1.45 24 1.5 24 1.55
2
4
6
t(s)
θ
G
... Drives
24 1.35 24 1.4 24 1.45 24 1.5 24 1.55 24 1.6 24 1.65 24 1.7 24 1.75
−50
0
50
t(s)
v
rGa
& v
rGb
(V)
23 0 23 5 24 0...
Electric Machines and Drives part 9 potx
... rewritten as:
2
2
22 2 2
e
e
qm
eee e
dm
losses m qs a ds r qr R dr
qf
ed
f
e
v
v
P riririri
RR
=+++++ (30)
The total electrical losses are obtained as follows:
22 22
22 22 2
22 2 2
22
r mqs e ... the
electrical parameters converge to machine parameters, even with noise in the currents.
R
sq
R
rq
L
mq
L
sq
7.07Ω 12. 21Ω 0 .21 50H 0 .24 62H
R
sd
R
rd
L
md
L
sd
20 .22 Ω 27...
Electric Machines and Drives part 12 pot
... mH, R = 0.1 Ω,
V
dc
= 400 V).
Electric Machines and Drives
22 2
10
0
S
n
⎡
⎤
=
⎢
⎥
⎣
⎦
(22 )
1
1
ss
ds ds
ss
qs qs
vv
S
vv
⎡
⎤⎡⎤
⎢
⎥⎢⎥
=
⎢
⎥⎢⎥
⎣
⎦⎣⎦
(23 )
1
1
1
ss
ds ds
ss
qs qs
ii
S
ii
−
⎡
⎤⎡⎤
⎢
⎥⎢⎥
=
⎢
⎥⎢⎥
⎣
⎦⎣⎦
... Supply, IEEE International
Electric Machines and Drives Conference, pp. 357-3 62, ISBN: 978-1- 424 4- 425 1-5,
Miami, USA, May 20 09.
Chom...
Electric Machines and Drives part 13 potx
... 1995):
r
ds
= 2. 02;
X
ld
= 2. 79; X
md
= 66.8;
r
qs
= 7.14;
X
lq
= 3 .22 ; X
mq
= 92. 9;
r´
r
= 4. 12;
X´
lr
= 2. 12.
The total inertia is
J = 1.46 × 10
-2
kgm
2
and N
sd
/N
sq
= ... noted as
0
C ,
2
C ,
3
C and
4
C . Their
values can be calculated via two variables x and
y
which are defined as follows:
V
x
V
α
= (24 )
Electric Machines and Dri...
Electric Machines and Drives Part 14 doc
...
0
4
t
1
2
t
2
2
t
3
2
t
0
2
t
3
2
t
2
2
t
1
2
t
0
4
t
Electric Machines and Drives
25 6
1.1 1.11 1. 12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1 .2
-40
-30
-20
-10
0
10
20
30
40
ILb
Time ... 0.0 02 0.004 0.006 0.008 0.01 0.0 12 0.014 0.016 0.018 0. 02
-300
-20 0
-100
0
100
20 0
300
Time (s)
Voltage Magnitude (V)
Vc
Va
Vb
-400
-20 0
0
20 0
400
-...
Từ khóa:
- ebook electric motors and drives
- kaplan toefl paper and pencil part 2
- ielts listening section example and skills part 2
- electric motors and drives solutions manual
- electric motors and drives 4th edition
- electric motors and drives fundamentals
- electric motors and drives pdf
- electric motors and drives austin hughes
- electric motors and drives anderson sc