Allen-Bradley 8720MC-RPS065 - Control Block Diagram

122 Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
Appendix A Specifications
Control Block Diagram
Shown is the 8720MC-RPS unit control block diagram.
d-Axis Current Reference (0)
R-Phase Voltage F/B
T-Phase Voltage F/B
AC Input Power Supply Voltage
Phase θ
Since θ
Cosine θ
DC Bus Voltage Reference
q-Axis Current Reference
Limit
Limit
Limit
Ramp
DC Bus Voltage
Sine
Table
3-Phase/
2-Phase
Conversion
Static Shaft/
Rotating Shaft
Conversion
d-Axis Feedback
q-Axis Feedback
d-Axis Voltage
Reference
q-Axis Voltage
Reference
Rotating Shaft/
Static Shaft
Conversion
2-Phase/
3-Phase
Conversion
Neutral Point
Voltage
Compensation
Limit
R-Phase Voltage
Reference
S-Phase Voltage
Reference
T-Phase Voltage
Reference
Input Voltage Compensation
PI Calculation
ω L Compensation (Non-interference Control)
PI Calculation
PI Calculation