H-BRIDGE OPTIMIZER: ADVANCED CONTROLLER FOR SUPERIOR DYNAMIC PERFORMANCE OF SINGLE-PHASE INVERTERS

Abstract

Single-phase cascaded H-bridge multilevel inverters are widely used in renewable energy integration, industrial drives, and power quality improvement due to their ability to produce high-quality voltage waveforms. However, achieving optimal dynamic performance under variable load conditions and minimizing harmonic distortions remain significant challenges. This study presents H-Bridge Optimizer, a novel controller designed to enhance the dynamic performance of single-phase cascaded H-bridge multilevel inverters. The proposed controller integrates advanced modulation strategies and real-time adaptive control to improve voltage response, reduce total harmonic distortion (THD), and enhance stability during load changes. Simulation and experimental results demonstrate significant improvements in dynamic response, voltage waveform quality, and overall inverter efficiency compared to conventional control methods. The research highlights the potential of advanced controller design in optimizing multilevel inverter performance for modern power systems.