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SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0,
286KTL-H0)
User Manual
No.
Parameter
18
LVRT active current
maintenance
coefficient
19
HVRT
20
HVRT triggering
threshold (V)
21
HVRT gradient K1
22
HVRT gradient K2
Issue 04 (2023-09-22)
Setting Description
Specifies the active current
proportional coefficient before
and during LVRT.
HVRT is short for high voltage
ride-through. When the grid
voltage is abnormally high for a
short time, the inverter cannot
disconnect from the power grid
immediately and has to work for
some time.
Specifies the threshold for
triggering HVRT. The threshold
settings should meet the local
grid standard.
During HVRT, the solar inverter
needs to generate positive-
sequence reactive power to
support the power grid. This
parameter is used to set the
positive-sequence reactive power
generated by the solar inverter.
For example, if you set HVRT
gradient K1 to 2, the increment
of positive-sequence reactive
current generated by the solar
inverter is 20% of the rated
current when the AC voltage
increases by 10% during HVRT.
During HVRT, the solar inverter
needs to generate negative-
sequence reactive power to
support the power grid. This
parameter is used to set the
negative-sequence reactive power
generated by the solar inverter.
For example, if you set HVRT
gradient K2 to 2, the increment
of negative-sequence reactive
current generated by the solar
inverter is 20% of the rated
current when the AC voltage
increases by 10% during HVRT.
Copyright © Huawei Technologies Co., Ltd.
7 Power-On and Commissioning
Remarks
-
-
This parameter is displayed
when HVRT is set to Enable.
71
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