Huawei SDongleA-01 User Manual page 44

FusionSolar Smart PV Management System
Connection
User Manual (Inverters + SDongleA)
Parameter
Grid Closed-loop
connection controller
with limited
power (kW)
Limitation mode
PV plant capacity
Maximum grid
feed-in power
(kW)
Power
adjustment
period
Maximum
protection time
Power control
hysteresis
Issue 02 (2021-11-25)
● SDongle/
SmartLogger
● Inverter
● Total power
● Single-phase power
N/A
N/A
N/A
N/A
N/A
Copyright © Huawei Technologies Co., Ltd.
5 Site Deployment and Commissioning
Description
● For a single inverter, set Closed-
loop controller to Inverter.
● For multiple inverters, Closed-
loop controller can only be set to
SDongle/SmartLogger.
● When this parameter is set to
Total power, no backfeeding
occurs on the three phases.
● When this parameter is set to
Single-phase power, no
backfeeding occurs on the phase
with the maximum power.
Specifies the total maximum active
power in the inverter cascading
scenario.
Specifies the maximum active power
transmitted from the grid-tied point
to the power grid.
Specifies the shortest interval for a
single export limitation adjustment.
● Specifies the time for detecting
power meter data. If the Smart
Dongle does not detect any power
meter data within the preset time,
the Smart Dongle delivers the
preset value of the Fail-safe
power threshold to the inverter
for protection.
● The recommended value is 5s or
greater.
Specifies the dead zone for adjusting
the inverter output power. If the
power fluctuates within the power
control hysteresis, the power is not
adjusted.
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