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Control method
Open loop control:At the start time, the locally configured
active instruction is sent to the power output port of the
inverter, thereby implementing reactive power control.
Closed-loop control: At the beginning time, reactive
instruction configured locally 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.
Q-Method
PF: set the power factor as the target value
%: set reactive power percentage.
Select energy meter*
Select Smart Energy Meter involved in power regulation
Communication
abnormality output
(%)*
Communication is abnormal, and specified dispatch output
value is delivered.
Wiring mode*
Direct connection: One Logger4000 is connected to all
inverters, where all the inverters must be string inverters or
central inverters.
Cascade connection: Multiple Logger4000 are cascaded,
and this Logger4000 is used as the host.
Line reactive power
compensation*
Compensation for reactive power losses in the line
Control cycle*
Time interval of delivering dispatching instructions
Parameter range: 5~60s
Note: The parameters noted with * refer to the parameters that need to be set only when
the Control Method is set to “Closed-loop Control”.
When selecting an energy meter, the Logger used must be the one manufactured by
SUNGROW.
step 4
Add local power control manner
Fill in "Start time" and "Percentage"(PF), and click "Save".
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Delete local power control manner: select a local power control manner that needs to be
deleted, and click "Clear data".
User Manual