DESIGN AND PERFORMANCE ANALYSIS OF A HIGH-GAIN DC–DC CONVERTER FOR RENEWABLE ENERGY APPLICATIONS

Abstract

This paper presents the design and analysis of a high gain DC-DC converter for renewable energy applications that require an efficient conversion from low input voltage to high output voltages. Traditional boost converters do not perform well in contemporary energy systems because they offer restricted voltage gain and experience high switching losses at large duty ratios. To address these limitations, the paper presents and evaluates a high gain converter topology. Stable output voltage under different load/input conditions across a wide variety of operating points is achieved by using PWM based closed loop control for the converter. The demonstration framework of the proposed system is developed, and simulated examination analyses of voltage gain, efficiency analysis and stability are provided. The simulation results show that the proposed converter provides higher voltage gain, lower switching stress and better efficiency than traditional Boost converters. Consequently, the developed converter can be applied to photovoltaic systems, battery energy storage systems and sustainable energy technologies.