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NO TICE
Configure the characteristic curve under instructions from professionals to ensure
that the solar inverter works properly.
The Q-U characteristic curve control mode is to dynamically adjust the ratio Q/S
of output reactive power to apparent power in accordance with the ratio U/Un(%)
of the actual grid voltage to the rated grid voltage.
Parameter
Description
Reactive power control
mode
Set this parameter to Q-U characteristic curve.
Reactive power
adjustment time
Specifies the change interval of the reactive power at
the grid-connection point.
Trigger power
percentage
Under a specific grid code, the characteristic curve
takes effect only when the actual output active power
of the device is greater than the specified value.
Exit power percentage
Under a specific grid code, the characteristic curve
becomes invalid when the actual output active power
of the device is less than the specified value.
Limit value for
minimum PF
Limits the actual minimum PF when the Q-U
characteristic curve takes effect.
Characteristic curve
points
Specifies the number of points on the characteristic
curve.
The characteristic curve supports a maximum of 10
valid points.
U/Un(%)
When configuring the curve, ensure that the U/Un(%)
value of a point is greater than the U/Un(%) value of
the previous point. Otherwise, the message indicating
invalid input will be displayed.
Q/S
cosφ-P/Pn Characteristic Curve
If you do not need the SmartLogger to send remote reactive power control
commands, you can configure the characteristic curve as a substitute. The
SmartLogger delivers the values configured for the characteristic curve to the solar
inverter or Smart PCS, which then operates according to the configuration. The
SmartLogger no longer adjusts the values.
NO TICE
Configure the characteristic curve under instructions from professionals to ensure
that the solar inverter or Smart PCS works properly.
SmartLogger3000
User Manual
6 WebUI Operations
Issue 10 (2022-08-20)
Copyright © Huawei Technologies Co., Ltd.
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