Power SC.LMU Management Unit for energy storage systems
The SC.LMU acts as an intelligent operation and communication system for stationary battery energy storage systems. Modular software blocks are prepared to fulfill typical operation models of battery energy storage systems. The ALFA UPS Local Management Unit SC.LMU is available as part of a ALFA Power Solution turnkey solution, equipped with storage converter, switchgear and transformer as well as in combination with the ALFA UPS’ power conversion system Power SC. The LMU is capable of supporting up to 4 Power SC in one location.
Key Features:
- Local self control: Normal standards, easily applied and readily implemented
- Interfacing: Well integrated communication protocols as needed
- Set point verification: Power requirements checked and verified
- Battery care: Maintained battery health
- Data logging: Actual data logged and readily available
- Graphical user interface GUI: Status functions readily displayed
- Ambient control: Monitoring capability
- Power supply: Powered by a DC UPS system even during grid outages
Local self control
When no overall EMS is existing, standard rules and procedures may be used (frequency control, compensation of PV power plants, voltage support, load compensation). A scheduled charge/discharge plan may also be implemented.
Interfacing
As required, different interfaces and communication protocols will be integrated and “translated”.
Battery Care
During periods when no power is required from the EMS, controlled charge and/or discharge cycles are performed to maintain battery health. The procedures are battery technology dependent.
Set point verification
Power requirements coming from an EMS or other system operator will be cross-checked and verified with the battery status (SOG, SOH) and then forwarded to the power conversion system (such as Power SC.600) to be executed or rejected.
Data logging
The actual data (battery, grid, power demands, status, etc.) are logged and forwarded to a local and/or to a remote data base.
Graphical user interface GUI
The actual status of the battery and the PCS as well as the operational history are displayed at the front.
Ambient control
Monitoring of ambient and cubicle temperatures.
Power supply
The LMU is powered by a DC UPS system, communication and system monitoring is therefore possible also during grid outages.
