WEG CFW100 - Page 76

8
MOTOR CONTROL
U
d
f
o
f
o
T
L
/T
R
, S
R
m
m*
U
d
U
d
P409, P178
f
o
P002
f
r
f
slip
P403
P140
404, P399,
P401,P409,
P402, P403
P151
P134 P133
f*
P100-P104
Zero
P135
m
3ϕ
I
o
I
o
I
o
I
sh
I
v
,I
w
I
sh
PWM
I
a
I
a
I
a
P295 P295
f
o
m P007
I
o
P003
U
d
P004
P400, P403, P401, P407,
Filter
Calculation of I
o
Flux control
modulation
Space Vector
PWM
DC Link Regulation
P202 = 5 (VVW Control)
Current limitation
controller
compensation
Output voltage
MI
Power supply
Angle,
sextant
Calculation of f
slip
Torque
estimation
Direction of rotation
Calculation of I
a
Figure 8.20: VVW control flow
Micro Mini Drives | 8-27