Sungrow Logger1000B User Manual page 81

User Manual
8.3.2.2 Remote Power Control
When the instruction source is IEC104 or MODBUS TCP protocol, set the Reactive Control
Mode to Remote power control.
step 1 Click Power control→Reactive power to enter the reactive power interface.
step 2 Set the Reactive Control Mode to Remote power control.
step 3 Set remote dispatching parameters. For specific parameter description, refer to the following
table.
table 8-7 Parameter description
Parameter
Communication
abnormality output (%)
Control method
Select energy meter /
transformer*
Error limit (%)*
Adjustment ratio (%)*
Description
Communication is abnormal, and specified dispatch output
value is delivered.
Open-loop control: Remote monitoring background is
connected and active instruction of remote dispatching is
sent to the power output port of the inverter, thereby
achieving active power control.
Closed-loop control: Remote monitoring background is
connected and reactive instruction of remote dispatching is
used as target value, 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.
Unselected
Select Smart Energy Meter / transformer involved in power
regulation
Adjustment accuracy
If the ratio of the difference between the reactive power and
the target value to the rated power is within the set error
range, the target value is reached.
If the adjustment does not reach the set target value,
increase or decrease adjustment value according to the set
adjustment ratio, so as to reach the target value.
8 Grid Dispatching Function
71