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6F3A4768
5.6.6 Reactive Current Voltage Control (RCV) (Optional)
Using the power regeneration function, reactive current voltage control (RCV) can be performed for the purpose
of improving the power factor of the AC power supply. The AD voltage command value as a reference is input
in RCV_REF_T through transmission and D-axis current reference ID_R is output so that the deviation from the
AC voltage feedback VAC_F at that time will become 0.
Fig. 5.6.6 shows a control block diagram for reactive current voltage control. Since this control outputs ID_R in
the same way as the voltage saturation restraint control in 5.6.5, if voltage saturation restraint control is active,
the output of the voltage saturation restraint control takes precedence to prevent the interference of both
controls.
Fig. 5.6.6 Reactive Current Voltage Control
DC voltage
feedback
VAC_F
DC voltage
reference
RCV_REF_T
+
+
+
<VSC control>
$VSC_P: Proportional gain
$VSC_I: Integral
gain
Limit
Upper limit:
$LMT_RCV_UL
Lower limit:
$LMT_RCV_LL
<Current limit>
ID_R
4000/100%
10000/100%
-
<Integration>
<Proportion>
Drooping gain
$RCV_DROOP
10000/100%
-
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