Fundamentals of Electrical Drivess - Chapter 2 ppt
Fundamentals of Electrical Drivess - Chapter 2 ppt
... namely
ψ
=
u
R
L
+ jω
(2. 16)
The amplitude and phase angle of the flux phasor are now
ˆ
ψ =
ˆu
R
L
2
+ ω
2
(2. 17a)
ρ
ψ
= −arctan
ωL
R
(2. 17b)
32 FUNDAMENTALS OF ELECTRICAL DRIVES
2. 3 Coil resistance
In ... should
correspond with those given in figure 2. 17.
Simple Electro-Magnetic Circuits 39
SCOPE1
SCOPE2
SCOPE3
u
L
u
iR
@
i
-2 16. 323 m
0
21 6. 323 m...
Fundamentals of Electrical Drivess - Chapter 1 pptx
... were open
%%%%%%define variables
A_c=10e-3*10e-3; % cross-section of core and armature 10mm x10 mm
A_a=10e-3*10e-3; % assumed cross-section of airgap
g=10e-3; % distance (airgap) between armature ... parameters
depth =20 e-3; % thickness E and I core
g=10e-3; % gap
w_A=45e-3; % E core center leg width
w_B =22 .5e-3; % E core side leg width
n=500; % number of turns coil
i_coil =20 ; % co...
Fundamentals of Electrical Drivess - Chapter 5 ppt
... W
Qs=imag(u_ 123 s*conj(i_ 123 s)); % reactive power VA
%%%%%%%%%%%%%%%%%%%%%%5
%Delta connected
u_ 123 d=u_RST*sqrt(3)*(cos(-gamma /2) +j*sin(-gamma /2) ); % U_phase phasor
e_ 123 d=e_RST*sqrt(3)*(cos(-gamma /2) +j*sin(-gamma /2) ); ... SCOPE5
SCOPE4
SCOPE1
SCOPE3
B_S
+
-
i
p
c
u
c
i
p
L
u
L
i
u
c
u
L
u
s
i
p
s
u
s
i
u
c
u
L
10
ground
-9 89.810u -1 581 .29 4n 1597.573u
-9 89.810...
Fundamentals of Electrical Drivess - Chapter 6 pptx
... 166 FUNDAMENTALS OF ELECTRICAL DRIVES
SCOPE2 SCOPE1
u
1
i
2S
U
1
@
2D
i
2D
0
i
2S
i
1
@
2S
0
@
2S
i
1
i
2D
@
1
@
2D
@
1
381.051
17.148
22 0.000
7 82. 597m
9.901
17.148 ... i1=sqrt(i1a. ^2+ i1b. ^2) ;
plot(t,i1); grid; hold on
i2D=sqrt(i2Da. ^2+ i2Db. ^2) ; plot(t,i2D,’r’)
xlabel(’t (s)’)
ylabel(’currents i_1, i_{D2} (A)’)
legend(’ i_1’, ’i_{2D}’)
figure
psi1=sqrt(psi1a. ^2+...
Fundamentals of Electrical Drivess - Chapter 0 docx
... Heidelberg
Printed on acid-free paper SPIN: 11760481 62/ techbooks 54 321 0
1-4 02 0-5 50 4-8 ebook
97 8-1 -4 02 0-5 50 4-1 ebook
Springer2007
ISBN-10
()
(
)
(HB)
(HB)
ISBN-10 1-4 02 0-5 503-X
ISBN-13 97 8-1 -4 02 0-5 50 3-4
... principles 12
1.7 Machine sizing principles 22
1.8 Tutorials for Chapter 1 23
2. SIMPLE ELECTRO-MAGNETIC CIRCUITS 29
2. 1 Intr...
Fundamentals of Electrical Drivess - Chapter 3 pps
... MATLAB
74 FUNDAMENTALS OF ELECTRICAL DRIVES
S COPE1GAI
0.0998
GAI
0. 02
i
1
i
RM
i
2
i
M
@'
2
i
11
u
1/50
u
2/ 10
u
1
@
2
@
1
i'
2
-1 2. 2 82 -4 2. 855m
-3 3.689
11.182m
118.755m
-1 2. 239
-1 8.668 ... (3 .24 ).
u
1
=
dψ
1
dt
(3 .24 a)
u
2
=
dψ
2
dt
(3 .24 b)
ψ
1
= i
1
L
σ
+ ψ
2
(3 .24 c)
ψ
2
= i
M
L
M
(3 .24 d)
i
M
= i
1
− i
2...
Fundamentals of Electrical Drivess - Chapter 4 doc
... (V)’)
grid
axis([0 20 e-3 -2 50 25 0])
%%%%%%%%
figure
subplot (2, 1,1)
plot(datoutn(:,6),datoutn(: ,2) )
grid
xlabel(’time (s)’)
ylabel(’u_{S\alpha} (V)’)
axis([0 20 e-3 -4 00 400])
subplot (2, 1 ,2)
plot(datoutn(:,6),datoutn(:,3),’r’)
xlabel(’time ... 0.008 0.01 0.0 12 0.014 0.016 0.018 0. 02
20 0
0
20 0
time (s)
u
S1
(V)
0 0.0 02 0.004 0.006 0.008 0.01 0.0 12 0.014 0.016 0.0...
Fundamentals of Electrical Drivess - Chapter 7 pps
... directly
1 82 FUNDAMENTALS OF ELECTRICAL DRIVES
example, in the two-pole machine we can rotate the resultant magnetic field by
an angle of
π
2
radians by way of a voltage excitation sequence of the ... −
ˆ
i
√
2
, i
β
=
ˆ
i
√
2
, T
e
=
ˆ
ψ
m
ˆ
i
√
2
(c) θ =
π
2
, i
α
= −
ˆ
i, i
β
=0, T
e
=0
Figure 7.8. IRTF Symbolic model and space vector diagrams, for: θ =0, θ =
π
4
and...
Fundamentals of Electrical Drivess - Chapter 8 potx
... 2. 25]A
i
F
(A) I
s
(A) Q
s
(VA) ρ
m
◦
0.5 0.60 373.06 -5 3.13
0.75 0. 42 241.73 -3 2. 23
1.0 0.30 130.96 -2 3.58
1 .25 0 .23 25 .81 -1 8.66
1.50 0 .26 -7 6.84 -1 5.47
1.75 0.35 -1 78.16 -1 3 .21
2. 00 0.47 -2 78.66 ... Simulink
TeM=0.5; %torque
iFM=[0.5:0 .25 :2. 25]; % selected field current values
%measured, from display, load angle (deg)
rhoM= [-5 3.13 -3...
Fundamentals of Electrical Drivess - Chapter 9 potx
... 13 .29 624 3.31 6539.08 66.46
50 1888.55 19.81 12. 40 622 4.90 5690.40 62. 00
30 22 84.33 17.39 9. 32 5464.44 321 6.46 46.61
20 25 03.43 13.93 6.95 4375. 32 1786. 92 34.74
10 27 34.06 8.31 3.93 26 09 .29 570.73 ... 13 .29 12. 40 9. 32 6.95 3.93 2. 11];
Ps3=[4760.36 5393.19 5916.81 61 82. 37 624 3.31 622 4.90 5464.44
4375. 32 2609 .29 1 426 .96];
Qs3=[1 029 9.87 9408.48 826 3. 42...
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