Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) - Manual (Page 93)

Publication 2364F-5.01– October 2003
Chapter
9
Adjusting Voltage and Current Regulation
Parameters
Regulation in the RGU consists of a voltage loop, a current loop, and
the associated scaling commands. As you can see in Figure 9.1,
regulation is a two-part process beginning in the voltage loop and
ending in the current loop.
Figure 9.1
RGU Regulation Block Diagram
DC Bus
Reference
DC Bus
Feedback
Reference to
Feedback
Comparator
PI Regulator
I
q
Current
Limiting
I
d
Current
Limiting
RGU Voltage Loop
Real Time
Commands &
Feedback Scaling
Offset
Adjustment
I
q
& I
d
Regulation
DC to AC
Transformation
PWM
Saturation
Regulator
AC to DC
Transformation
RGU Current Loop
Signals to
Gate Driver
Boards
Reference
Angle
Generation