Pure Off-Grid Ess; Pure Off-Grid Ess Networking - Huawei LUNA2000 User Manual

LUNA2000-(5-30)-S0
User Manual
Parameter
Backup power
SOC
Grid-tied/Off-
grid mode
switching
Setting a Working Mode
The grid-tied and off-grid ESS mode can be used together with the self-
consumption or time-of-use mode. Enable Off-grid mode during site deployment.
For details about how to set the self-consumption or time-of-use mode, see
Setting the Grid-tied ESS

3.3 Pure Off-grid ESS

The pure off-grid ESS is mainly used in the scenario where there is no grid and the
system operates in pure off-grid mode. The pure off-grid ESS stores the generated
PV energy in batteries and supplies power to loads when the PV energy is
insufficient or there is no PV energy at night.

3.3.1 Pure Off-grid ESS Networking

The pure off-grid ESS consists of the PV strings, LUNA2000 batteries, inverter, AC
switch, and load. In off-grid mode, PV strings and batteries must be configured.
The pure off-grid ESS supports only a single inverter and does not support parallel
connection of inverters.
Issue 01 (2020-10-20)
Description
Sets the backup power SOC. In grid-tied
mode, the battery does not discharge when
it is discharged to the backup power SOC.
When the grid fails, loads are powered in
backup mode.
If this parameter is set to Automatic
switching, the system switches to the off-
grid mode when the grid fails, and switches
to the grid-tied mode when the grid
recovers.
Mode.
Copyright © Huawei Technologies Co., Ltd.
3 Application Scenarios and Settings
Value Range
[0, 50%]
● Automatic
● Manual
switching
switching
3.1.2
33