User Manual 8 Grid Dispatching Function
8.2.1.5 Digital Input
When using the analog signal at the DI port of the Data Logger as the dispatching input, set
Active Control Mode to Digital Input.
step 1 Click Power Control > Active Power to enter the Active Power page.
step 2 Set Active Control Mode to Digital Input.
step 3
Set DI control parameters. For specific parameter description, refer to the following table.
table 8-4 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
Control Cycle
Time interval of delivering dispatching commands
Range: 5~60s
Instruction Type
kW: set active power value
%: set active power percentage
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