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LUNA2000-(5-30)-NHS0
User Manual
ESS Working
Mode
Issue 11 (2023-04-15)
Current Charge/
Discharge Status
The PV power is
less than the
power limit at the
grid-connection
point, and batteries
are discharging.
NO TE
● When the ESS runs in the pure off-grid mode or without the PV system, SOH calibration
is not supported.
● When the grid power fails, force SOH calibration exits during off-grid switching. If the
SOC is lower than the backup SOC during switching, backup power is affected.
● If Charge from grid is enabled during SOH calibration, the ESS may obtain power from
the grid to fully charge batteries quickly.
● If the ESS or inverter is powered off during SOH calibration, the calibration fails and the
system does not save the calibration process data. After power-on, the calibration
restarts when the SOH calibration conditions are met.
Copyright © Huawei Technologies Co., Ltd.
SOH Calibration's
Impact on
Charging
Batteries stop
discharging and are
charging at the
maximum power.
The feed-in power
decreases.
8 System Maintenance
SOH
Calibration's
Impact on
Discharging
batteries
discharge to less
than 5% SOC,
which basically
meets the natural
calibration
conditions.
Therefore, the
force SOH
calibration is
rarely started.
95
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