Asymmetrical fault ride-through of three-phase PV systems using four-wire Dc-ac converters

This paper examines the fault ride-through strategy of a three-phase PV system with respect to compliance to the German Transmission Code. Specifically, the paper examines the case of a single line-ground fault which occurs predominantly in the distribution system. The paper proposes the injection of reactive power on a per-phase basis to the faulty phases… CONTINUE READING