A novel dual-leg DC-DC converter for wide range DC-AC conversion

This paper proposes DC–AC Dual-leg dual-stage Conversion (DDC) and Direct single-stage conversions (DSC). Conventional energy conversion system has only two-stage conversion, so it some drawbacks such as huge power loss, less range lower rating. So direct dual-leg step-up are the solutions to get wide voltage efficiently. The proposed converter can perform from battery DC supply into AC with 1:1 ratio, AC, step-down in both directions. Also, rectifier operation grid DC, DC. Step-up, ideal operations possible within a single circuit; its is similar solid-state DC–AC/AC–DC transformer. operation, Step-down Step-up on sides, this handle of voltage. Power distribution achieved regulation between battery/DC-load AC-load/grid using control strategy proper modulation. A prototype model 2-kW rating validates advantages feasibility methodology.