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All Journal International Journal of Applied Power Engineering (IJAPE)
Swetha Mareddy
Annamacharya University
Electrical & Electronics Engineering

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Performance analysis of multi carrier PWM techniques for a 5-phase three level NPC inverter in EV applications Venu Yarlagadda; N. Kavitha; Chava Sunil Kumar; G. Naveen; Swetha Mareddy; S. Venkata Rami Reddy; K. V. Govardhan Rao
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i3.pp1264-1274

Abstract

Multi-phase multilevel inverters have become more popular in contemporary applications due to their many benefits, which include lower switching losses, decreased common mode voltage, and reduced stress from voltage on switches. This study focuses on enhancing total harmonic distortion (THD) performance in a five-phase multilevel neutral point clamped (NPC) inverter using various multi-carrier pulse width modulation (PWM) techniques, including PD, POD, APOD, IC, PSC, and VFC. These approaches are particularly suitable for electric vehicle and industrial motor applications. Several PWM approaches were used in the SIMULINK environment to model and simulate a 5-phase, 3-level NPC inverter. In this study, the performance of load voltage THD is compared using R and RL loads connected to a multilevel inverter. Additionally, 5-phase induction motor and permanent magnet synchronous motor models are developed as loads for electric vehicle applications, and variations in torque, speed, and stator current are analyzed. The PD modulation technique showed the lowest THD among the various PWM methods, demonstrating its effectiveness in maximizing inverter performance.
Co-Authors Chava Sunil Kumar G. Naveen K. V. Govardhan Rao N. Kavitha S. Venkata Rami Reddy Venu Yarlagadda