Huawei LUNA2000-5-S0 User Manual page 147

LUNA2000-(5-30)-S0
User Manual
●
Table 8-8 Impact of forced check
ESS
Worki
ng
Mode
TOU
Maxim
um
self-
consu
mptio
n
Issue 15 (2024-01-12)
Pending (Idle) or Detection ends (Calibration completed). For details, see
7.3.3 Querying the Battery
Forced check: During the forced check, the batteries are charged to 100%
SOC, and then immediately discharge until the SOC reaches 0%. Charging is
not allowed during discharging. To ensure accurate calculation, the
discharging process needs to be completed within 24 hours. In this case, you
can increase the load power to shorten the discharging time. If the
discharging process exceeds the time limit, the check will fail and then restart
48 hours later. The forced check is performed on an individual battery pack.
Only one battery pack can be checked under an inverter at a time. Battery
packs under multiple inverters can be checked at the same time. During the
forced check, the working mode of the ESS may be changed. For details, see
the following table.
Current Charge/
Discharge
Status
Charging
Discharging
The PV power is
greater than the
load power and
battery charge
power, and the
surplus PV power
is fed to the grid.
The PV power is
greater than the
load power, and
batteries are
charging.
The PV power is
less than the
load power, and
batteries are
discharging.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Status.
Impact of Forced Check on
Charging
The ESS working mode is
not affected. Batteries are
charging at the maximum
power.
Batteries stop discharging
and are charging at the
maximum power.
The ESS working mode is
not affected. Batteries are
charging at the maximum
power.
Batteries are charging at the
maximum power. Power
from the grid may be
supplied to loads.
Batteries stop discharging
and are charging at the
maximum power. More
power from the grid is
supplied to loads.
8 System Maintenance
Impact of Forced
Check on
Discharging
Batteries are
discharging at the
current load power
(the discharged
battery energy
cannot be fed to the
grid).
1. When the battery
discharge power is
greater than the
load power, the
battery discharges
and the surplus PV
power cannot be fed
to the grid. The
inverter power is
limited, affecting the
energy yield.
2. When the battery
discharge power is
less than the load
power, the PV power
is supplied to loads
at the same time.
138