User Manual 9 Grid Dispatching Function
59
Tab. 9-6 Parameter description
Communication
abnormality output (%)
Communication is abnormal, and specified dispatch
output value is delivered.
Control method
Open loop control: Active instruction controlled by DI is
sent to the power output port of the inverter, thereby
achieving active power control.
Closed-loop control:
1） In case no energy meter is selected
instruction controlled by DI 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.
2） In case an energy meter is selected, active instruction
controlled by DI 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.
Select energy meter*
Unselected
Select energy meter involved in power regulation
Control cycle
Time interval of delivering dispatching instructions
Parameter range: 5~60s
Q-Method
kW: set active power value.
%: set active power percentage.
Note: *Only when the control method is set to "Closed-loop control", the parameter
"Select energy meter" is settable.
Step 4 Add digital input manner
Select the desired DI channel, fill in the "Percentage"(fixed value of active power),
and click "Save".
Subsequent operation
Delete digital input manner: select a digital input manner that needs to be deleted,
and click "Clear data".
DRM mode
When using the digital signal at the DI port (DI1 ~ DI4) of the Logger1000 as the
dispatching input, set the active control mode to "DRM mode".
Step 1 Click "Power control" -> "Active power" to enter the active power interface.
Step 2 Set the active control mode to "DRM mode" and click “Save”.
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