ENERGY MANAGEMENT SYSTEM AND METHOD USING PHOTOVOLTAIC MODULE-LINKED ESS

摘要

The present invention relates to an energy management system using a photovoltaic module-linked ESS, the system comprising: a photovoltaic unit comprising a first photovoltaic module, a second photovoltaic module,..., and an nth photovoltaic module; an energy storage unit comprising a first ESS, a second ESS,..., and an nth ESS which are respectively connected to the first photovoltaic module, the second photovoltaic module,..., and the nth photovoltaic module and store electric energy generated by the photovoltaic unit; and an energy management unit which is connected to the energy storage unit and actuates balance of system (BOS) equipment consecutively from the ESS, among the first ESS, the second ESS,..., and the nth ESS, which has the lowest energy charging level, thereby leveling off the energy charging level of each of the first ESS, the second ESS,..., and the nth ESS at above a predetermined average charging level.