Low-cost monitoring of photovoltaic systems at panel level in residential homes based on power line communication

摘要

This paper proposes a low-cost power line communication (PLC) module to monitor photovoltaic (PV) systems at panel level. The PLC module measures the voltage and current of four PV panels at a time. The aggregation time of monitoring PV panels is reduced down to one fourth. The installation cost of PV monitoring is expected to become one third by reducing the required number of PLC modules.