Performance of a Five-Phase, Eleven-Level Inverter Using Various PWM Techniques with Fewer Switches

Abstract: In this paper, various Pulse Width Modulation (PWM) techniques are used to evaluate the performance of an11-level, five-phase inverter with fewer switches. The suggested topology maintains high output quality and efficiency while reducing the number of switches. By using fewer semiconduc-tor devices, the inverter’s design improves fault tolerance and reliability while lowering overall system costs, switching losses, and complexity. Total Harmonic Distortion (THD), switching losses, and voltage stress are examined for a number of PWM techniques, such as Sinusoidal PWM (SPWM), Space Vector PWM (SVPWM), and Selective Harmonic Elimination PWM (SHEPWM). The comparative analysis emphasizes each PWM technique’s benefits in terms of improving power quality and suppressing harmonics.. To further illustrate the superiority of multiphase systems in terms of increased efficiency and fault tolerance, a thorough comparison between three-phase and five- phase 11-level inverters is provided. The suggested inverter topology is a feasible choice for high-performance industrial and renewable energy applications since simulation results confirmits efficacy in lowering THD and increasing power conversion efficiency..