A Study on Improvement of Power Utilization Rate of Energy Systems with PVs and Batteries

摘要

A photovoltaic (PV) system with batteries (BTs) is expected to be an effective system for coping with the energy issues we will face in the future. This paper establishes an energy system with PVs and batteries that will improve the utilization rate of power supplied from PVs and batteries to on-premise loads. An external transducer is adopted to measure the receiving power from the utility grid. According to the measured receiving power, constant receiving power control, and power factor control functions for power conditioning systems (PCSs) are utilized to improve the power utilization ratio. The effectiveness of this system will be verified using actual equipment.