Mitsubishi FR-A740-00023-EC - Page 95

4
PARAMETERS
85
Control mode
Block diagram of real sensorless vector control
Block diagram of vector control
PWM
modulation
output
voltage
conversion
torque
current
control
speed
control
slip
calculation
current
conversion
pre-excitation
current
control
magnetic
flux
control
ω
*
ω
FB
-
+
+
-
iq
*
id
Vq
Vd
ω
0
ω
s
iq
φ
2
id
φ
2
id
*
IM
ω
FB
+
-
iq
ω
0
+
+
iq
id
speed estimation
calculation
flux
magnetic
id
Vd
Vq
PWM
modulation
output
voltage
conversion
torque
current
control
speed
control
slip
calculation
current
conversion
pre-excitation
current
control
magnetic
flux
control
magnetic
flux
calculation
ω
*
ω
FB
-
+
+
-
iq
*
id
Vq
Vd
ω
0
ω
s
iq
φ
2
id
φ
2
id
*
IM
Encoder
ω
FB
+
-
iq
ω
0
+
+
iq
id