Sungrow Logger1000B User Manual page 78

8 Grid Dispatching Function
table 8-5 Parameter description
Parameter
Communication
abnormality output (%)
Control method
Select energy meter*
Control cycle
AI port
Q-Method
Min.
Max.
Step
Note: *Only when the control method is set to Closed-loop control, the parameter Select
energy meter is settable.
step 4 After finishing parameter setting, click Save to save the operation.
- - End
68
Description
Communication is abnormal, and specified dispatch output
value is delivered.
Open-loop control: Active instruction controlled by AI is sent
to the power output port of the inverter, thereby achieving
active power control.
Closed-loop control:
• In case no Smart Energy Meter is selected, active
instruction controlled by AI is used as target value, and
active power compensation ratio is calculated and sent to
the power output port of the inverter. Generally, this
strategy is used for fast and accurate active power
regulation.
• In case a Smart Energy Meter is selected, active
instruction controlled by AI is used as target value, active
power of the meter needs to be collected and used as
input parameter, and active power compensation ratio is
calculated and sent to the power output port of the inverter.
Generally, this strategy is used for anti-backflow or
avoiding zero power feed-in.
Unselected
Select Smart Energy Meter involved in power regulation
Time interval of delivering dispatching instructions
Parameter range: 5~60s
AI1~AI4 available
kW: set active power value
%: set active power percentage
Lower limit: 0.0
When Q-Method is set to %, the upper limit is 100.0%
When Q-Method is set to kW, the upper limit is 999999 kW
The minimum difference value between two consecutive
power dispatching instructions
User Manual