BOSS – Installation, Operation and Maintenance Manual
A l e n c o n S y s t e m s L L C - P a g e
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Figure 6: Parallel connection of DCDC - 2 DCDC’s connected to a single battery rack.
BOSS Operation
The BOSS is packaged in to a 19” rack mounted enclosure for use inside a battery container or
in an IP65 extruded aluminum enclosure for outdoor use. It comprises of four DCDC converter
units, each with its own input and output connections. Alencon provides two types of DCDC
converters: BOSS-1000 rated at 1000 VDC max and BOSS-1500 rated at 1500 VDC max.
Each DCDC generates charge current (from BUS to BATTERY) or discharge current (from
BATTERY to BUS) according to commands it receives from the ESS controller.
BOSS Controls
Each DCDC included in the BOSS has an independent Sic MOSFET full bridge power
inverter/rectifier on the DC BUS side and another Sic MOSFET full bridge power inverter/rectifier
on the Battery side. Both power bridges are linked by a deployment specific, high frequency
transformer. The transformer provides the galvanic isolation as well as mapping of the bus and
battery voltages.
Both power bridges are fully microcomputer controlled. The microcomputer also monitors the
bus voltage and the battery voltage.
