Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 122

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
4 SmartLogger Web-based Deployment
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
115
When the capacity limit is enabled in TOU mode, the charge/discharge time set in
the TOU window must cover 24 hours of a day. Capacity limitation is not supported
in non-charge/discharge time.

Capacity limit:
− If the capacity limit is met 24 hours a day, the ratio of the ESS/PCS to the load
power must be properly set to ensure that the ESS/PCS have sufficient capacity to
meet the capacity limit.
− When the ESS is used only for capacity limit, you can set the charge time to 24
hours through the TOU setting. Do not set the discharge time and
non-charge/discharge time.
− The overload capability of transformers, power distribution switches, and cables
must be greater than the sum of the maximum charge current and maximum load
current of the ESS.
Procedure
Step 1 Choose Settings > Battery Control > Capacity Limit to set the capacity limit.
Parameter
Description
No control
If this parameter is set, the capacity of the grid-connection point is not
limited. The inverter and Smart PCS run according to the preset control
policy.
Active
capacity limit
If this parameter is set, the active power of the grid-connection point for
purchasing or feeding power cannot exceed the preset capacity limit.
Apparent
capacity limit
If this parameter is set, the apparent power of the grid-connection point
for purchasing or feeding power cannot exceed the preset capacity limit.
----End
Active capacity limit
Parameter
Description
Maximum
active capacity
Set this parameter according to the charging capacity in the demand
contract of the power grid company. Once set, the active power of the
grid-connection point for purchasing or feeding power cannot exceed the
preset value.
PV power
limit when
electricity
meter fails
Specifies the active power limit of the inverter when the feed-in meter
communication is abnormal. You can manually change the active power
percentage of the inverter as required.
PCS power
limit when
electricity
meter fails
Specifies the active power limit of the PCS when the feed-in meter
communication is abnormal. You can manually change the active power
percentage of the PCS as required.