Huawei SUN2000-63KTL-JPH0 User Manual page 73

SUN2000-63KTL-JPH0
User Manual
Parameter
RCD enhancement
Night-time reactive power output
PID protection at night
Power quality optimization mode
PV module type
PID compensation direction (or
Crystalline silicon PV
compensation mode)
String connection mode
Issue 06 (2020-02-18)
Description
RCD refers to the residual current of the inverter to the ground. To ensure
device and personal safety, RCD should be limited to the specified value in
the standard. If an AC switch with a residual current detection function is
installed outside the inverter, this function should be enabled to reduce the
residual current generated when the inverter is running, thereby preventing
the AC switch from misoperations.
In some specific application scenarios, a power grid company requires that
the inverter can perform reactive power compensation at night to ensure
that the power factor of the local power grid meets requirements.
This parameter is displayed when Isolation settings is set to Input
ungrounded, with TF.
When the inverter outputs reactive power at night and this parameter is set
to Enable, the inverter will shut down automatically if it detects abnormal
status of the PID compensation.
If this parameter is set to Enable, the inverter output current harmonics
will be optimized.
This parameter is used to set different types of PV modules and the
shutdown time of the concentration PV module. If the concentration PV
modules are shaded, the power drops drastically to 0 and the inverter shuts
down. The energy yield would be affected since it takes too long for the
power to resume and inverter to restart. The parameter does not need to be
set for crystalline silicon and filmy PV modules.
 If this parameter is set to Crystalline silicon or Film, the inverter
automatically detects the power of PV modules when they are shaded
and shuts down if the power is too low.
 When concentration PV modules are used:
− If this parameter is set to CPV 1, the inverter can quickly restart in
60 minutes if the input power of PV modules drops drastically due
to shading.
− If this parameter is set to CPV 2, the inverter can quickly restart in
10 minutes if the input power of PV modules drops drastically due
to shading.
When the external PID module compensates the PID voltage for the PV
system, set Built-in PID compensation direction to the actual
compensation direction of the PID module so that the inverter can output
reactive power at night.
This parameter is displayed when PV module type is set to Crystalline
silicon. Select PV–positive offset for P-type PV modules. Select PV+
negative offset for N-type PV modules.
Specifies the connection mode of PV strings.
 When PV strings connect to the inverter separately (All PV strings
separated), there is no need to set this parameter. The inverter can
automatically detect the connection mode of the PV strings.
 When PV strings connect to one another in parallel outside the inverter
and then connect to it independently (All PV strings connected), set this
parameter to All PV strings connected.
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