Design and Analysis of High Efficiency DC-DC Converter for Renewable Energy Applications

Abstract

The growing incorporation of renewable energy sources in modern power systems has intensified the need for efficient and dependable power electronic converters. DC–DC converters are crucial in applications such as solar systems, fuel cells, and battery energy storage for voltage management and minimizing power loss. This study details the design and evaluation of a high-efficiency DC–DC converter intended for renewable energy applications. The suggested system utilizes an efficient switching approach, synchronous rectification, and carefully selected passive components to improve performance across a wide operational range. A mathematical model is created to examine essential characteristics like voltage conversion ratio, inductor current ripple, capacitor voltage ripple, and overall efficiency under diverse load situations. The converter delivers consistent output voltage, less switching losses, enhanced transient responsiveness, and superior thermal efficiency. The design is validated by MATLAB/Simulink simulations across diverse input and load fluctuations characteristic of renewable settings. The findings indicate improved efficiency, greater voltage control, less ripple, and dependable dynamic performance relative to traditional converters, making the suggested design ideal for contemporary renewable energy systems.