ENERGY STORAGE SYSTEM

摘要

PURPOSE: An energy storage system is provided to include a bidirectional converter in which a new renewable energy part and battery are connected in parallel, thereby reducing the number of devices for circuit formation. CONSTITUTION: A new renewable energy part(110) supplies new renewable energy power. A battery(120) supplies battery power. One or more bidirectional converters(130) is connected to the new renewable energy part in parallel. A power system(170) supplies power system voltage. A load(160) is connected between the bidirectional converter and power system. An integrated control part(180) control the operation of a selection switch part and the bidirectional converter.