Control method for energy storage converter

The present disclosure relates to a control method for an energy storage converter. The method includes: determining a current fault component; determining a voltage fault component; determining a fault component of a positive-sequence current of the energy storage converter in a dq coordinate system of the new energy converter; determining a fault component of a current in a dq coordinate system of the energy storage converter; determining dq-axis currents of the energy storage converter according to the fault component of the current in the dq coordinate system of the energy storage converter and a pre-fault current of the energy storage converter; and controlling the energy storage converter to output current according to the dq-axis currents of the energy storage converter, so as to reduce an impact of the fault.