Mitsubishi Electric FR-A800 Series Instruction Manual page 278

Current control / voltage output / magnetic flux observer
C
Torque current
command value
Iq*
D
Excitation +
current
command value
Id
Id*
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q-axis current controller
Torque control
P gain
+
[Pr.824]
-
Iq
([Pr.834])
Torque control
integral time
[Pr.825]
([Pr.835])
d-axis current controller
Torque control
P gain
[Pr.824]
-
([Pr.834])
Torque control
integral time
[Pr.825]
([Pr.835])
+
Estimated speed
value
+
Slip frequency
ωsl
Torque detection filter
[Pr.827]
([Pr.837])
search engine
Vq
+ +
+ +
2-phase to 3-phase
conversion
Vd
Online auto tuning
selection
Incoherent
[Pr.95]
operation
Magnetic flux
observer
Real sensorless
vector control
-
+
+ +
Real sensorless
vector control
Real sensorless
vector control
Phase calculation
θsl
+
+
θIM
FR-A8AP
FR-A8AL
Iq
3-phase to 2-phase conversion
Id
5.4 Torque control under Real sensorless vector control and Vector control
Soft-PWM operation selection
+
Vu
+
+
Vv
PWM
+
Vw
+
+
One of the conditions satisfied
Magnetic flux observer
Magnetic flux observer
Magnetic flux observer
Estimated magnetic
Slip frequency
operation
Enabled
Speed estimator
Control method
θ
Vector control
Iu
Iv
Iw
5. PARAMETERS
1
[Pr.240]
Soft-PWM
processing
2
Inverter voltage
output
3
4
5
6
7
flux value
Magnetic flux
observer 8
ωsl
Estimated
speed value 9
10
Inverter output
current detection
277