No. Parameter Description Remarks
7 LVRT mode Sets LVRT mode. The options are Zero-current
mode, Constant current mode, Reactive
power priority mode, and Active power
priority mode.
8 LVRT
characteristic
curve
Species the low voltage ride-through
capability of the inverter.
9 HVRT 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.
-
10 Threshold for
triggering
HVRT (V)
Species the threshold for triggering HVRT. The
threshold settings should meet the local grid
standard.
This parameter is
displayed when HVRT
is set to Enable.
11 HVRT reactive
power
compensation
factor
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 reactive power
compensation factor to 2, the positive-
sequence reactive current generated by the
solar inverter is 20% of the rated current when
the AC voltage increases by 10% during HVRT.
12 HVRT
compensation
power factor
of reactive
power in
negative
sequence
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 compensation
power factor of reactive power in negative
sequence to 2, the negative-sequence reactive
current generated by the solar inverter is 20%
of the rated current when the AC voltage
increases by 10% during HVRT.
13 Grid voltage
protection
shield during
VRT
Species whether to shield the undervoltage
protection function during LVRT or HVRT.
This parameter is
displayed when LVRT
or HVRT is set to
Enable.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1
User Manual
7 Man-Machine Interactions
Issue 05 (2020-08-30) Copyright © Huawei Technologies Co., Ltd. 70
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