Sungrow Logger1000B User Manual

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8.3.2.4 Analog Input
When using the analog signal at the AI port of the Logger1000 as the dispatching input, set
the Reactive Control Mode to Analog input.
Step 1 Click “Power control→Reactive power” to enter the reactive power interface.
Step 2 Set the reactive control mode to Analog input.
Step 3 Set AI control parameters. For specific parameter description, refer to the following table.
table 8-9 Parameter description
Parameter
Description
Control method
Open-loop control: Reactive instruction controlled by AI is sent
to power output port of the inverter, thereby achieving active
power control.
Closed-loop control: Reactive instruction controlled by AI is
used as target value and reactive power and power factor of the
meter need to be collected and used as input parameters, and re-
active power compensation ratio is calculated and sent to power
output port of the inverter. Generally, this strategy is used for im-
proving the power factor of the property boundary point.
Select energy meter /
transformer*
Select Smart Energy Meter involved in power regulation
Control cycle
Time interval of delivering dispatching instructions
Parameter range: 5~60s
AI port
AI1~AI4 available
Instruction Type
PF: set the power factor as the target value
%: set reactive power percentage
Min. / Max.
When Instruction Typeis set to %, the parameter ranges from
-100.0% to 100.0%.
When Instruction Type is set to PF, the parameter ranges from
-1 to -0.8 or 0.8 to 1.
Step
The minimum difference value between two consecutive power
dispatching instructions
Hysteresis range**
When the parameter Instruction Type is set to PF, dispatching
output maintains to be PF±1
Note: *Only when the control method is set to Closed-loop control, the parameter Select
energy meter / transformer is settable.
** Only when the control method is set to Open-loop control and the Instruction Type to
PF or when the control method is set to Closed-loop control, a Smart Energy Meter is se-
lected, and the Instruction Type is set to PF, the parameter Hysteresis range is settable.
8 Grid Dispatching Function User Manual

Sungrow Logger1000B Specifications

General

Brand	Sungrow
Model	Logger1000B
Category	Data Loggers
Language	English