PORTABLE ELECTRIC ENERGY STORAGE SYSTEM AND POWER REGULATION METHOD THEREOF

A portable electric energy storage system and a power regulation method thereof are provided. The portable electric energy storage system includes a housing, and an inverter and an energy storage battery disposed in the housing, and further includes: a power detector configured to detect a present power Pt of a connected load; a first comparator configured to compare the present power Pt with a rated power Pe of the inverter; a first actuator configured to regulate an output power of the inverter to a first preset power P1 if the present power Pt is greater than the rated power Pe of the inverter; and a second actuator configured to gradually regulate the output power of the inverter to a second preset power P2 after the connected load is driven to start operation or operate for a period of time; or determine whether to stop driving output of the load.