An Extendable High Step-Up DC-DC Converter for Renewable Energy Applications

In this paper, a high step-up DC-DC converter based on a switched-inductor-capacitor-diode (SLCD) cell is proposed. The proposed converter provides a high voltage gain, low voltage stress on the power switches and diodes, and a low input current ripple. Moreover, the proposed converter is extendable, meaning that the voltage gain could be further increased by using a higher number of proposed cells in the topology. The steady-state analysis and comparison of the proposed converter to the other existing converters are presented. A 200 W, 40 V to 380 V experimental setup is developed to verify the steady-state analysis of the proposed converter.