Huawei SUN2000-M3 User Manual page 78

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual
Parameter
Grid
connecti
on with
limited
power
(%)
Issue 11 (2023-01-10)
Description
Power Specifies the shortest interval for a single export limitation
adjustment adjustment.
period
Active power Specifies the derating value of the inverter active power by
output limit for percentage. If the Smart Dongle does not detect any power
fail-safe meter data or the communication between the Smart
Dongle and the inverter is disconnected, the Smart Dongle
delivers the derating value of the inverter active power by
percentage.
Communicatio In the inverter export limitation scenario, if this parameter
n is set to Enable, the inverter will derate according to the
disconnection active power derating percentage when the
fail-safe communication between the inverter and the Smart
Dongle is disconnected for a period longer than
Communication disconnection detection time.
Communicatio Specifies the time for determining the communication
n disconnection between the inverter and the Smart Dongle.
disconnection This parameter is displayed when Communication
detection time disconnection fail-safe is set to Enable.
Closed-loop ● For a single inverter, set Closed-loop controller to
controller Inverter.
● For multiple inverters, Closed-loop controller can only
be set to SDongle/SmartLogger.
Limitation ● Total power indicates export limitation of the total
mode power at the grid-tied point. (When a single-phase
meter is connected, only Total power can be selected. If
a three-phase meter is connected in three-phase three-
wire mode, only Total power can be selected.)
● Single-phase power indicates export limitation of the
power in each phase at the grid-tied point. If a three-
phase meter is connected, Single-phase power can be
selected only when the meter is connected in three-
phase four-wire mode.
PV plant Specifies the total maximum active power in the inverter
capacity cascading scenario.
Maximum grid Specifies the percentage of the maximum active power of
feed-in power the grid-tied point to the PV plant capacity.
Maximum Specifies the time for detecting power meter data. If the
protection time Dongle does not detect any power meter data within the
preset time, the Dongle delivers the preset value of Active
power output limit for fail-safe for protection.
Power raising Specifies the step for grid-tied power adjustment.
threshold
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7 Man-Machine Interaction
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