A Single Switch Ultra-High Step-Up DC-DC Converter Based on a Coupled Inductor with Two Output Ports for Renewable Energy Applications
Pouneh Aghakhanlou, Fatemeh Falahi, Ali Nadermohammadi, Seyed Majid Hashemzadeh, Seyed Hossein Hosseini, Ebrahim Babaei
Abstract
This study introduces an innovative design for a dual-output high-voltage DC-DC converter. The advantages of this converter encompass low input current ripple, reduced voltage stress on power switches and diodes, the presence of a common ground, and increased overall efficiency. The incorporation of a coupled inductor (CI) eliminates the need for a high-power switch duty cycle, thereby minimizing conduction losses and enhancing efficiency. Additionally, the lower voltage stresses enable the use of lower-rated semiconductors, resulting in cost and volume savings. The propounded converter is thoroughly examined, and simulation results in PSCAD/EMTDC are provided to validate the theoretical analyses.