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Reseach Article

Minimization of Switching Losses for Diode Clamped Multilevel Inverter

by R. Pon Perumal, W. Razia Sultana, Sarat Kumar Sahoo
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 44 - Number 11
Year of Publication: 2012
Authors: R. Pon Perumal, W. Razia Sultana, Sarat Kumar Sahoo
10.5120/6305-8625

R. Pon Perumal, W. Razia Sultana, Sarat Kumar Sahoo . Minimization of Switching Losses for Diode Clamped Multilevel Inverter. International Journal of Computer Applications. 44, 11 ( April 2012), 6-11. DOI=10.5120/6305-8625

@article{ 10.5120/6305-8625,
author = { R. Pon Perumal, W. Razia Sultana, Sarat Kumar Sahoo },
title = { Minimization of Switching Losses for Diode Clamped Multilevel Inverter },
journal = { International Journal of Computer Applications },
issue_date = { April 2012 },
volume = { 44 },
number = { 11 },
month = { April },
year = { 2012 },
issn = { 0975-8887 },
pages = { 6-11 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume44/number11/6305-8625/ },
doi = { 10.5120/6305-8625 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:35:14.620517+05:30
%A R. Pon Perumal
%A W. Razia Sultana
%A Sarat Kumar Sahoo
%T Minimization of Switching Losses for Diode Clamped Multilevel Inverter
%J International Journal of Computer Applications
%@ 0975-8887
%V 44
%N 11
%P 6-11
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Multilevel inverters are emerging as a most promising alternative for reducing the harmonics and to achieve high-voltage, high-power capability but switching losses are increased because of increased device count. Many modulation techniques like soft switching techniques, space vector-based PWM techniques or sinusoidal PWM-based techniques were employed to reduce the switching losses. In this paper, a carrier-based closed-loop PWM control technique has been proposed based on insertion of 'no switching' zone within each positive and negative half cycle of fundamental wave to reduce the switching losses. This method effectively reduces the switching losses of three-level inverter as it does not require any complex mathematical expressions involved in space vector based technique. Moreover, THD is found within 5% for a switching frequency of 5 kHz with proposed technique over conventional SPWM technique. Simulation results are presented to validate the proposed technique. Comparisons are made between switching losses of conventional and proposed control technique of three level diode clamped inverter.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Multilevel Inverters Carrier Based Pulse Width Modulation Switching Losses Total Harmonic Distortion