PV-ESS DIRECT CONNECTION TYPE ENERGY MANAGEMENT SYSTEM AND PHOTOVOLTAIC POWER GENERATION SYSTEM INTERWORKING DEVICE

Discussed is a photovoltaic (PV) recombining apparatus configured to connect a photovoltaic (PV) system with a Direct Current (DC) bus connected to Direct Current (DC) power lines of an energy storage system (ESS) and an inverter (PCS). The PV recombination apparatus can include an inverter connection terminal connecting the photovoltaic system and the inverter, an ESS connection terminal connecting the photovoltaic system and the energy storage system, and a disconnector configured to disconnect the photovoltaic system and the DC bus according to a control command which is based on external conditions.