Introduction
In modern renewable energy systems and power electronics, there is a growing demand forhigh-efficiency DC/DC converters with large voltage gain. Traditional converters often suffer from high switching losses, voltage stress on devices, and poor efficiency under high step-up operations. This project proposes a novel Active Clamp Quasi-Resonant High Step-Up DC/DC Converter with a built-in transformer to address these challenges.Objectives
To design and develop a high step-up DC/DC converter suitable for renewable energy and power management applications. To minimize voltage stress across switching devices through active clamp circuits. To achieve soft-switching operation, thereby improving efficiency and reducing power losses. To integrate a built-in transformer for enhanced voltage gain and compact design.Methodology
The proposed converter employs an active clamp circuit to recycle leakage energy and reduce switching stress. Quasi-resonant operation ensures soft switching, improving efficiency at high frequencies. The built-in transformer provides the necessary voltage gain while reducing the overall component count. MATLAB/Simulink and hardware prototype testing will be used to validate the performance.
Expected Outcomes
Improved efficiency compared to conventional converters. Reduced voltage stress on switches and diodes. Compact, reliable, and cost-effective design for renewable energy applications. Enhanced performance in photovoltaic (PV) systems, fuel cells, and other high step-up power conversion scenarios.Applications
- Renewable energy systems (solar PV, fuel cells).
- Electric vehicles and battery charging systems.
- High-voltage DC transmission and industrial power supplies.
