Research Article

Comparative Study of Multicarrier PWM Techniques for Seven Level Cascaded Z-Source Inverter

by  T. Sengolrajan, B. Shanthi, S. P. Natarajan
journal cover
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 65 - Issue 6
Published: March 2013
Authors: T. Sengolrajan, B. Shanthi, S. P. Natarajan
10.5120/10926-5869
PDF

T. Sengolrajan, B. Shanthi, S. P. Natarajan . Comparative Study of Multicarrier PWM Techniques for Seven Level Cascaded Z-Source Inverter. International Journal of Computer Applications. 65, 6 (March 2013), 5-10. DOI=10.5120/10926-5869 

                        @article{ 10.5120/10926-5869,
                        author  = { T. Sengolrajan,B. Shanthi,S. P. Natarajan },
                        title   = { Comparative Study of Multicarrier PWM Techniques for Seven Level Cascaded Z-Source Inverter },
                        journal = { International Journal of Computer Applications },
                        year    = { 2013 },
                        volume  = { 65 },
                        number  = { 6 },
                        pages   = { 5-10 },
                        doi     = { 10.5120/10926-5869 },
                        publisher = { Foundation of Computer Science (FCS), NY, USA }
                        }
                        %0 Journal Article
                        %D 2013
                        %A T. Sengolrajan
                        %A B. Shanthi
                        %A S. P. Natarajan
                        %T Comparative Study of Multicarrier PWM Techniques for Seven Level Cascaded Z-Source Inverter%T 
                        %J International Journal of Computer Applications
                        %V 65
                        %N 6
                        %P 5-10
                        %R 10.5120/10926-5869
                        %I Foundation of Computer Science (FCS), NY, USA
Abstract

This paper presents the comparative study of various Multicarrier Pulse Width Modulation techniques with Sinusoidal reference for single phase seven level cascaded Z-source inverter designed with three intermediate Z-source networks connected between the input source inverter circuit. The cascaded Z-source based MLI technique enhances the fundamental output voltage and reduces the Total Harmonic Distortion (THD). Performance factors such as %THD,Vrms and CF of output voltage are measured for different modulation indices 0. 6-1. The results are compared. The simulation results indicate that the use of Z-Source in CMLI boost 50% of the total output voltage. APOD PWM technique provides low THD and COPWM provides high DC bus utilization.

References
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Index Terms
Computer Science
Information Sciences
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Keywords

Modulation Index (ma) PD POD APOD VF COPWM Z-source Inverter

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