As for the issue of overvoltage and overcurrent of PV inverter in the ride-through in the low vol-tage grid

a kind of strategy based on photovoltaic-energy storage hybrid System. During the low voltagetime

the PV inverter adopts maximum power for the tracking and control

uses the energy system to absorbexcessive active power to solve the overvoltage problem of the device. Coordination distribution control isadopted for the current output so to not only solve the problem of overcurrent

but also to provide a definitereactive power to the system for the recovery of system voltage.