A Doubly-Excited Buck-Boost DC-AC Converter Suitable for Feeding AC Loads from PV Systems

Abstract

This paper presents a new topology for a DC-AC converter. The main attributes of the proposed converter are the ability for bucking or boosting the input voltage (DC Voltage), gives a sinusoidal output without the need for filters at the load terminals, can be used in feeding AC loads from PV (Photovoltaic) systems and can be used in other several applications. Also, the paper presents the performance, through the power simulation program (PSIM), of the proposed converter in different modes of operation to show the dependability of the proposed converter.