Enhanced Output Voltage Regulation for Solar-Fed Cascaded Multilevel Inverters

Abstract

This paper presents the design and implementation of a solar-fed cascaded multilevel inverter (CMLI) with a focus on output voltage regulation. As renewable energy sources like solar power become increasingly integral to modern energy systems, ensuring stable and high-quality output from inverters is crucial for effective grid integration and load management. The proposed CMLI utilizes a series of power semiconductor devices to achieve high voltage levels with reduced harmonic distortion, making it suitable for various applications. Advanced control strategies are implemented to dynamically regulate the output voltage, adapting to varying load conditions and maintaining performance under fluctuating solar irradiance. Comprehensive simulation studies demonstrate the effectiveness of the proposed system in achieving desired voltage regulation, minimizing total harmonic distortion (THD), and enhancing overall efficiency. Additionally, the paper discusses the practical implications of deploying the solar-fed CMLI in real-world scenarios, showcasing its potential to improve power quality in distributed generation systems. The findings highlight the significance of this technology in advancing solar energy applications and contribute to the ongoing efforts to integrate renewable energy solutions into the existing power infrastructure.