Power management strategy for residential housing connected to the rooftop solar PV

Solar Photo Voltaic(PV) is one of the hottest trends of residential applications due to the increasing concerns about environmental sustainability and adopted feed-in tariffs in many countries. However, rooftop PV generates unstable output due to load variation and solar irradiation due to clouds and rain. To overcome this problem, this paper investigates operation mode control for residential housing which consists of the rooftop solar PV and Battery Energy Storage System(BESS) which could be regulated by a Charging/Discharging Controller incorporated into a power management strategy. It could operate on the DC-AC Converter which depends on the State of Charge (SOC%), real time of resident load, and real time Solar PV panel generation. The proposed strategy not only supports the grid power stability due to demand of the residential house loads but also compensates impacts of solar variations by passing clouds and other causes. This design and simulation output was verified by PSCAD/EMTDC Software.