FRT capability for multiple inverters in an uninterruptible smart house

Recently, the smart house, which is equipped with a residential photovoltaic (PV) system, storage battery, and Home Energy Management System (HEMS) has attracted much attention. For power system stability the PV system requires a Fault Ride Through (FRT) function. The smart house proposed in this paper performs one-second FRT control and operates in stand-alone mode at the occurrence of a distribution system fault while taking into account the battery capacity. The effectiveness of the proposed method is verified by simulation results in the Matlab/SimPowerSystems environment.