Huawei LUNA2000-97KWH-1H1 - Page 157

Working Mode Mode Description
Charge/
Discharge
based on grid
dispatch
– This mode applies to utility-scale plant scheduling
scenarios where a third-party controller delivers active
power scheduling commands.
– The purpose of scheduled discharge is to meet the
active power scheduling target value at the grid
connection point. PV energy is preferred. If the
generated PV energy is insucient, the ESS discharges
energy and the energy is fed to the grid based on the
active power scheduling target value. If the generated
PV energy is sucient, the energy is fed to the grid
based on the active power scheduling target value,
and the surplus PV energy is used to charge the ESS.
– The purpose of scheduled charge is to meet the active
power scheduling target value at the grid connection
point. If the ESS charge power is insucient or the
Smart PCS limits the power, the grid charges the ESS
with the maximum capability. If the ESS is not fully
charged when the scheduling target value is met, the
PV energy is used to charge the ESS.
Custom
[2]
– This mode applies to utility-scale plant (with ESSs)
scheduling scenarios. Customers can control the ESS
discharge power.
– Non-discharge period: The ESS cannot discharge
energy but can be charged based on the scheduling
command.
– Discharge period: If Adaptive discharge power is
enabled, the control logic is the same as that for
scheduled charge and discharge. The ESS charge
power and discharge power are determined by the
upper-layer scheduling command. If Adaptive
discharge power is disabled, the ESS discharge power
is xed to the reference value set by the customer. In
this case, the upper-layer scheduling command
controls only the PV inverters but not the ESS.
Note [1]: You can set this parameter in SmartLogger V300R023C00SPC150
and later versions.
Note [2]: You can set this parameter in SmartLogger V300R023C00SPC120
and later versions.
LUNA2000-(97KWH-1H1, 129KWH-2H1,
161KWH-2H1, 200KWH-2H1) Smart String ESS
User Manual 10 Commissioning the ESS (SmartLogger WebUI)
Issue 10 (2023-11-07) Copyright © Huawei Digital Power Technologies Co., Ltd. 147