International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Comparison of Different Types of SPWM Techniques for Single Phase 31 Level Cascaded H-Bridge Inverter

Abstract

Multilevel inverters have been regarded as a superior choice for medium voltage and high power applications because they have good waveform quality, higher performance, and are made up of switching devices that are subjected to minimal pressures. The multilevel inverter is used to reduce harmonics to improve voltage quality. As the multilevel inverter's voltage levels increase, harmonics are reduced as well, which considerably reduces losses. This paper discusses the Level Shifted Carriers Based Pulse Width Modulation (LS-PWM) and phase-shifted carriers pulse width modulation (PS-PWM) Techniques for Single Phase inverters 31 levels. LSPWM is divided into three subgroups: phase disposition (PD), phase opposition disposition (POD), and alternate phase opposition disposition (APOD). Simulation data are obtained using MATLAB / SIMULINK.  Results show (PS-PWM) has less THD in output wave voltage than (LS-PWM).    

Country : Iraq

1 Mona Hassan Husien2 Mohammed Ali Alrawi

  1. Department of Electrical Engineering, Mosul University, Iraq
  2. Department of Electrical Engineering, Mosul University, Iraq

IRJIET, Volume 6, Issue 9, September 2022 pp. 132-136

doi.org/10.47001/IRJIET/2022.609020

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