Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) - Manual (Page 32)

Publication 2364F-5.01– October 2003
1-16 Overview
Now, if I
d
were commanded to be at some negative level, V
RGU
would be increased and shifted closer still to V
line
as shown in
Figure 1.17, then we would have the same real current, but I
d
is
now opposite to the I
d
in Figure 1.10, and the power factor
would be leading.
Figure 1.16
Motoring Current Vector Diagram, Leading pf
Figure 1.17
Voltage Vector Diagram
Figure 1.18
Line Voltage and Current Waveforms (Leading pf, Iq > 0, Id > 0)
I
d
V
line
To Neutral
I
q
I
line
V
line
To Neutral
XL*I
q
XL*I
d
V
RGU
V
line
I
line