Electric energy storage system, electric energy storage method, electric vehicle charging power providing system, electric vehicle charging power charging method and system

摘要

A power interval connected to the overhead line, and an energy storage device connected to the overhead line to receive power energy from the overhead line and storing the power, and a time interval between the electric cars is predetermined. A power energy storage system is disclosed that blocks power energy supplied from the overhead line from flowing into the energy storage device if it is smaller than the time interval.