Table 6-9 Lithium battery parameters
Operating Mode Backup
Power
SOC(%)
(Maximize PV
Consumption
)
Genset
Startup
SOC(%)
Genset
Shutdown
SOC(%)
End-of-
Discharge
SOC for
Lithium
Batteries(%
)
Available
SOC for
Lithium
Batteries(%
)
Value
Range
Defa
ult
Valu
e
Value
Range
Defa
ult
Valu
e
Value
Rang
e
Defa
ult
Valu
e
Value
Rang
e
Defa
ult
Valu
e
Value
Rang
e
Defa
ult
Valu
e
Value
Rang
e
Defa
ult
Valu
e
● Maximiz
e PV
Consump
tion
● Maximiz
e Power
Backup
Maxi
mize
Pow
er
Back
up
20–50 20 15–30 15 85–
100
90 5–15 5 20–95 20
● Lithium battery SOC: lithium battery real-time capacity percentage.
● Backup Power SOC(%): In Maximize PV Consumption mode, when the mains is
normal, the lithium battery SOC is greater than the value of Backup Power SOC(%) to
provide backup power.
● End-of-Discharge SOC for Lithium Batteries(%): In any mode, the ESSs discharge to
the value of End-of-Discharge SOC for Lithium Batteries(%), protecting the batteries.
● Available SOC for Lithium Batteries(%): When the ESSs have only PV input (no AC
input), the ESSs discharge to the value of End-of-Discharge SOC for Lithium
Batteries(%). The PV system charges the ESSs until the value of Available SOC for
Lithium Batteries(%) is reached. Then the ESSs supply power to loads. This prevents
unstable power supply when the irradiance is low.
● Genset Startup SOC(%): The ESSs discharge until the lithium battery SOC is less than
or equal to the value of Genset Startup SOC(%). Then the genset is started to prevent
load
power-o.
● Genset Shutdown SOC(%): The ESSs are charged until the value of Available SOC for
Lithium Batteries(%) is reached. Then the genset is shut down. This reduces the genset
runtime.
iSitePower-M (MAP05A1, MAB05B1)
User Manual 6 Application Scenarios
Issue 06 (2023-04-24) Copyright © Huawei Digital Power Technologies Co., Ltd. 66