2017•2017 International Conference On Smart Technologies For Smart Nation (SmartTechCon)Requires access

A study of comparative analysis of different PWM techniques

K. Deepa, Pramod Kumar, V. Krishna, Pandry Narendra Rao, A. Mounika, D. Medhini

Abstract

Multilevel inverter has benefits like low stress on switches, low harmonic distortion and can be used in high voltage and high power applications. In this paper 7 — level Multilevel inverter which has less number of switches is considered with various PWM Techniques. The different PWM techniques considered are Carrier-Overlap PWM(CO-PWM), Variable Frequency PWM(VF-PWM), Phase Shifted PWM(PS-PWM), Alternate Phase Opposition Disposition PWM(APOD-PWM), Phase Disposition PWM(PD-PWM), Phase Opposition Disposition PWM(POD-PWM). The given topology is modeled and simulated with the help of MATLAB/SIMULINK to check which PWM technique leads low THD value.

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Key concepts: Pulse-width modulation, Total harmonic distortion, MATLAB, Computer science, Control theory (sociology), Voltage, Electronic engineering, Topology (electrical circuits)