Reactive Power Regulation - Sungrow SH8.0RS User Manual

8 iSolarCloud App

8.10.6 Reactive Power Regulation

Tap Settings > Power Regulation Parameters > Reactive Power Regulationto enter the
screen, as shown in the following figure.
table 8-7 Description of reactive power regulation
Parameter
Reactive
Power Setting
Persistence
Reactive Power
Regulation Mode
table 8-8 Descriptions of reactive power regulation mode:
Mode Descriptions
Off The PF is fixed at +1.000.
PF The reactive power can be regulated by the parameter PF (Power Factor).
Qt The reactive power can be regulated by the parameter Q-Var limits (in %).
Q(P) The PF changes with the output power of the inverter.
Q(U) The reactive power changes with the grid voltage.
"Off" Mode
The reactive power regulation function is disabled. The PF is limited to +1.000.
"PF" Mode
The power factor is fixed and reactive power setpoint is calculated according to the current
power. The PF ranges from 0.8 leading to 0.8 lagging.
Leading: The inverter supplies reactive power to the grid.
Lagging: The inverter absorbs reactive power from the grid.
"Qt" Mode
In the Qt mode, system rated reactive power is fixed, and the system injects reactive power
according to the delivered reactive power ratio. The Reactive Power Ratio is set through
the App.
106
figure 8-17 Reactive Power Regulation
Description
Switch for activating/deactivating the
function of reactive power setting
persistence
-
User Manual
Default Range
On On / Off
Off / PF /
Off Qt / Q(P) /
Q(U)