Power Quality Performance Evaluation Of Multilevel Inverter With Reduced Switching Devices & Minimum Standing Voltage

Abstract

Multilevel inverters (MLIs) have gained significant attention in modern power electronic applications due to their ability to produce high-quality output waveforms with reduced harmonic distortion and lower switching losses. This work presents the power quality performance evaluation of a multilevel inverter with reduced switching devices and minimum standing voltage, aiming to improve efficiency while minimizing system complexity and cost. The proposed inverter topology reduces the number of power electronic switches and associated components, thereby decreasing switching losses, control complexity, and overall implementation cost.In addition, the design ensures minimum standing voltage stress across switches, enhancing device reliability and extending operational lifespan. The inverter is analyzed for key power quality parameters such as total harmonic distortion (THD), voltage regulation, and efficiency under various load conditions. Simulation and experimental results demonstrate that the proposed system achieves improved output waveform quality with reduced harmonics and better voltage utilization compared to conventional multilevel inverter configurations. Overall, the proposed approach offers a cost-effective, efficient, and reliable solution for power conversion applications in renewable energy systems and industrial drives.