ENERGY STORAGE DEVICE AND ENERGY STORAGE SYSTEM INCLUDING THE SAME

摘要

Discussed are an energy storage device and an energy storage system including the energy storage device. The energy storage device includes at least one battery pack, a power conversion unit to convert, into DC power, AC power from a first phase from among three phases of an internal power network in a charging mode of the energy storage device, and to convert the DC power stored in the at least one battery pack into the AC power in a discharging mode of the energy storage device, a communication module to exchange data with an external energy storage device, and a controller to control the power conversion unit.