Huawei LUNA2000-200KWH-2H1 - Page 43

Step 3 On the MGCC side, send the startup, shutdown, and Working mode changing
commands to check that the communication between the MGCC and
SmartLogger is normal.
Step 4 Perform charge and discharge tests on the MGCC side.
1. Send a power command on the MGCC side and check whether the feedback
information sent by the SmartLogger to the MGCC is normal.
2. Choose Overview > Plant Running Info. on the SmartLogger and check
whether the meter power, ESS power, and PV power match.
----End
NO TE
The preceding steps Step 1 and Step 2 have been completed after deployment
commissioning. If a power failure occurs after deployment commissioning, perform steps
Step 1 and Step 2 to start the array.
Starting the Array Using the Black Start Function in O-Grid Mode
NO TICE
● The plant design shall ensure that the inrush current of each load line does not
cause overcurrent protection after black start is successful.
● The control logic of black start is implemented by the MGCC, and the power
supply for startup is the ESS.
● During black start, the secondary circuits such as the SACU or SmartLogger and
the CMU of the ESS shall have a power supply, which can be provided by the
UPS.
● During black start, the ESS array shall have adequate dischargeable power for
the black start (depending on the isolation transformer specications and
inrush current in the system).
● To prevent PCS protection caused by the excitation inrush current when the
isolation transformer is switched on during black start, the isolation
transformer and lines also need to be started simultaneously.
● If forced dehumidication of the ESS is triggered during the black start, the
black start function cannot take eect properly. Therefore, before the black
start, ensure that the ESS cabinet doors are closed in a timely manner and
there is no condensation in the ESS (for example, there is no water drop in the
ESS).
● In o-grid scenarios, it is recommended that the end-of-charge SOC and end-
of-discharge SOC controlled by the EMS range from 10% to 90% to ensure that
the black start function works properly.
Commercial and Industrial Microgrid Energy Storage
Solution
Quick Guide (With Third-Party Microgrid Central
Controller) 5 System Operations
Issue 04 (2023-12-18) Copyright © Huawei Digital Power Technologies Co., Ltd. 37