Additional Voltage Assisted High Gain DC-DC Cnverter with Modified ?uk Configuration

Abstract

In this paper, a novel high gain DC-DC converter with an additional injected DC voltage is presented. The injected voltage helps to achieve a high voltage gain compared to the conventional converters and it controls the maximum voltage gain. The proposed solution is based on a modified ?uk converter and it gives the advantage of continuous input/output current like ?uk converter. Moreover, the solution overcomes the drawback of the ?uk converter in achieving a high boost factor. The additional injected voltage is derived from the same input voltage through an isolated path without affecting the continuous input current significantly. The working principle, steady state analysis, the effect of parasitic losses and a detailed comparative study under continuous conduction mode are presented. The proposed scheme is verified through MATLAB Simulink based model at 40 V to 400 V for 600 W power level. � 2020 IEEE.