IF08CZ9 September, 2019
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CIRCUIT OPERATION (cont’d)
Control
The following figures show the overall Control block diagrams for IM (Induction Motor) control.
Vector Control Block Diagram
V/f Control Block Diagram
Speed
Reference
Id,Iq Current Detection
V/f
Reference
Voltage
Reference
PWM
Control
Speed
reference
Speed
control
Torque
reference
limit
d/q axis
current
reference
d/q axis
current
reference
Voltage
reference
PWM
control
SFC
Tension
control
ld, lq Current
detection
Speed detection
(Option)
Toshiba Reference File #328