Sungrow Logger4000 User Manual

8 Grid Dispatching Function User Manual
step 3 Set local dispatching parameters. For specific parameter description, refer to the following table.
table 8-2 Parameters description
Parameters Description
Control Method
• Open-Loop Control: Active dispatching command is sent to
the power output port of the inverter, thereby achieving active
power control.
•
Closed-Loop Control:
- When not using a Smart Energy Meter, at the start time,
the active power command is set as the target value.
Multiple adjustment algorithms are applied to calculate the
proportional value of active power compensation, which
is then sent to the power output port of the inverter. This
method is generally used for fast and accurate active power
regulation.
- When using a Smart Energy Meter, at the start time,
the active power command is set as the target value,
and the active power is collected by the meter as an
input parameter. A closed-loop control algorithm is then
used to calculate the proportional value of active power
compensation, which is then sent to the power output
port of the inverter. This method is generally used for
anti-backflow or zero power feed-in.
Select Meter* Select a Smart Energy Meter for power regulation
Communication
Abnormality Output**
When the communication is abnormal, the specified dispatch output
value is delivered.
Wiring Mode**
Direct Connection: One Data Logger is connected to all inverters,
where all the inverters must be string inverters or central inverters.
Cascading: Multiple Data Loggers are cascaded, and this Data
Logger is used as the host.
Start After
Communication
Recovery**
Enable: After the Smart Energy Meter recovers normal
communication, the Data Logger will deliver a start command to the
inverter.
Disable: After the Smart Energy Meter recovers normal
communication, the Data Logger will not deliver a start command to
the inverter.
Start Delay After
Communication
Recovery**
After the Smart Energy Meter recovers normal communication,
the Data Logger will deliver a start command to the inverter after a
certain time period.
Range: 0~120s
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Sungrow Logger4000 Specifications

General

Brand	Sungrow
Model	Logger4000
Category	Data Loggers
Language	English