Mitsubishi Electric FR-A720-0.4K Instruction Manual page 99
Fr-a700 series
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Also See for FR-A720-0.4K:
- Instruction manual (523 pages) ,
- Instruction manual (472 pages) ,
- Instruction manual (235 pages)
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Block diagram of real sensorless vector control
magnetic
φ 2
flux
control
ω
*
speed
+
-
control
ω FB
+
ω FB
ω s
Block diagram of vector control
magnetic
φ 2
flux
control
ω
*
+
speed
-
control
ω FB
+
ω FB
ω s
pre-excitation
id
*
+
-
id
iq
*
+
-
iq
ω 0
+
iq
slip
calculation
φ 2
magnetic
flux
calculation
speed estimation
pre-excitation
id
*
+
-
id
iq
*
+
-
iq
ω 0
+
iq
slip
calculation
φ 2
magnetic
flux
calculation
PWM
modulation
Vd
current
output
control
voltage
conversion
torque
Vq
current
control
id
current
iq
conversion
id
id
Vd
Vq
PWM
modulation
Vd
current
output
control
voltage
conversion
torque
Vq
current
control
id
current
iq
conversion
id
Control mode
IM
ω 0
IM
Encoder
ω 0
4
89
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