A Continuous Input Current DC-DC Converter Based on Coupled Inductor for Renewable Energy Applications

Abstract

A high-efficiency and a high conversion gain DC-DC converter is introduced in this paper to apply sustainable energy sources into dc nano-grid. The introduced topology takes the property of the coupled inductor (CL) method to obtain a declined voltage stress of the semiconductor devices and high voltage conversion ratio. The MOSFET voltage stress is remarkably decreased constracted to the output high voltage. Thus, a low on resistance MOSFET and low rating voltage is used to increase the efficiency of the suggested topology. Moreover, the CL application obviates the reverse recovery losses of diodes. The steady-state analysis and operation principle of the suggested configuration are elaborated. Besides, the introduced configuration superiority is illustrated over many alike most momentous recently proposed DC-DC configurations in the section 5. The simulation results demonstrate coherence with the theoretical study with a 340 V output voltage and a 340 W output power. The topology demonstrates a 96.5% peak conversion efficiency.