Power supply and energy storage device

Abstract

A power supply and energy storage device includes a DC bus and an energy storage cabinet. The energy storage cabinet is equipped with a plurality of battery clusters that are electrically connected in parallel. Each battery cluster includes a plurality of battery modules and an isolated bidirectional control module. The isolated bidirectional control module electrically isolates the DC bus from each battery module. The power supply and energy storage device controls each battery module to have the same charging current when charging and the same discharging current when discharging, based on the real-time voltage measured by the DC bus.

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