Advancements in Topology and Modulation Techniques for Split Source Inverters: A Comprehensive Overview

Single-stage DC-AC inverters with boosting abilities are in high demand for power conversion systems with respect to their two-stage counterparts. This preference arises from the decreased component numbers, lower weight, smaller volume, decreased cost, and simplified sophistication. Various types of single-stage converters have been documented in the literature, each with its own benefits and drawbacks. In response to the increasing need for such applications, there is a continuous introduction of new single-stage converter topologies. The recent introduction of the Split Source Inverter (SSI) is notable for its operational simplicity, reduced stress, fewer passive elements, and compatibility with the operational states of the Voltage Source Inverter (VSI). The main objective of this article is to thoroughly categorize and assess both traditional and modified SSI topologies, providing insights into their operation, charging and discharging states, as well as discussing their merits and demerits.