Sungrow Logger1000B User Manual page 84

8 Grid Dispatching Function
table 8-9 Parameter description
Parameter
Communication
abnormality output
(%)
Control method
Select energy meter*
Control cycle
AI port
Q-Method
Min. / Max.
Step
Hysteresis range**
Note: *Only when the control method is set to Closed-loop control, the parameter Select
energy meter is settable.
** Only when the control method is set to Open-loop control and the Q-Method to PF or
when the control method is set to Closed-loop control, a Smart Energy Meter is selected,
and the Q-Method is set to PF, the parameter Hysteresis range is settable.
step 4 After finishing parameter setting, click Save to save the operation.
- - End
74
Description
Communication is abnormal, and specified dispatch output value
is delivered.
Open-loop control: Reactive instruction controlled by AI is sent
to power output port of the inverter, thereby achieving active
power control.
Closed-loop control: Reactive instruction controlled by AI is
used as target value and reactive power and power factor of the
meter need to be collected and used as input parameters, and
reactive power compensation ratio is calculated and sent to
power output port of the inverter. Generally, this strategy is used
for improving the power factor of the property boundary point.
Select Smart Energy Meter involved in power regulation
Time interval of delivering dispatching instructions
Parameter range: 5~60s
AI1~AI4 available
PF: set the power factor as the target value
%: set reactive power percentage
When Q-Method is set to %, the parameter ranges from -100.0%
to 100.0%.
When Q-Method is set to PF, the parameter ranges from -1 to
-0.8 or 0.8 to 1.
The minimum difference value between two consecutive power
dispatching instructions
When the parameter Q-Method is set to PF, dispatching output
maintains to be PF±1
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