High Step-Up Dual-Switch X-Source DCDC Converters Integrating Various Capacitor-Winding-Diode Voltage-Double Technology

In this article, a new class of high step-up dual-switch X-source dc-dc converters integrating various capacitor-winding-diode voltage-double technology is presented, which are parallel-winding dual-switch X-source dc-dc converters, series-winding dual-switch X-source dc-dc converters, and flipped parallel-winding dual-switch X-source dc-dc converters. According to different winding homonymous end connections, voltage gains and turn ratios of proposed converters have two relations: inversely proportional relations and positive proportional relations. Also, all proposed topologies can produce the higher voltage gain, and own the lower voltage stresses. Operation principles, math derivations, and performance advantages of the proposed converters are analyzed in detail. Finally, the experimental prototype is built to demonstrate the operational feasibility of the proposed converter.