XOLTA BAT-80, Руководство пользователя

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© 2023 by XOLTA
30
Power
[kW
]
40
224
226
228
230
232
20
0
–20
–40
234
236
238
5.0 5.2 5.4 5.6 5.8 6.0 6.2 6.4
Voltage
[V
]
Time [day]
Average voltage Inverter active power
Figure 5.6:
Grid voltage varia-
tions and XOLTA
Outdoor BESS active
power output
operating in the grid
voltage support mode
5.2.3.3 Grid frequency support
For specific requests about frequency support services please contact XOLTA support at
support@xolta.com .
5.3 Site controller state machine
The XOLTA Energy Storage System (ESS) Site Controller (SC) is a finite-state machine with three distinct states;
• SLEEP (idle)
• RUN (active)
• ERROR
Transitions from one state to the other occur through intermediate sequential procedures. The SC state
diagram can be found in Figure 5.8.
5.3.1 Site controller states
5.3.1.1 Sleep state
The system is idling; it is only monitoring and transmitting battery vitals and waiting for a request
to activate. In this state, the DC contactor of the battery is open. The inverter is inactive (IGBTs off)
with both the AC and DC contactors open. For a period of system inactivity of more than 20 minutes,
the BMS is disabled and turned off in order to further minimize energy loss. Upon a state change
request, the system is able to be active and ready to receive and inject power within a few seconds.
The detailed state diagram of the XOLTA Outdoor BESS is presented in Figure 5.7.