Housed in a tough enclosure, lithium-ion battery technology provides reliable, lightweight and compact energy storage for UPS systems.
Each battery cabinet has dedicated battery management systems at single module and rack level, plus fuse, circuit breaker protection and a dedicated 24 V power supply.
A single cabinet configuration of 34.6kWh comprises one switchgear, one switched mode power supply (SMPS) and 17 battery modules.
For additional battery capacity, cabinets can be installed in parallel to increase capacity up to 5 MW per single system.
Switchgear collects all information about each battery cell and controls all battery module management systems calculating state of charge (SoC) and state of health (SoH). It also contains a moulded case circuit breaker and a shunt resistor.
SMPS supplies the power for BMS and communicates with UPS and other racks in parallel. It is available in two versions with or without BMS for single or multiple parallel configuration.
Battery module contains eight series-connected 67 Ah, 3.8 V cells and a dedicated battery module management system (BMS), which measures major parameters, controls cell balancing and interacts with the switchgear.