Carrier-based PWM modulation for THD and losses reduction on multilevel inverters

Author

Barreto, L.H.S.C. ; Henn, G.A.L. ; Praça, P.P. ; Silva, R.N.A.L. ; Oliveira, D.S., Jr. ; da Silva, Edison Roberto Cabral

Author_Institution

Dept. of Electr. Eng., Univ. Fed. do Ceara, Fortaleza, Brazil

fYear

2012

fDate

5-9 Feb. 2012

Firstpage

2436

Lastpage

2441

Abstract

This paper presents an adapted carrier-based PWM modulation technique to be applied on both NPC and FC structures of multilevel inverters. The proposed modulation leads to an improved performance of the output voltage THD and also reduces the total loss dissipation across the semiconductors devices, when compared to other conventional carrier-based PWM modulation techniques, such as PSPWM and LSPWM. The effectiveness of the proposed technique is demonstrated through experimental results of a three-phase, three-level, 6kW prototype.

Keywords

PWM invertors; harmonic distortion; FC structure; LSPWM; NPC structure; PSPWM; THD; carrier-based PWM modulation technique; flying capacitor structure; loss dissipation reduction; multilevel inverters; neutral point clamp structure; power 6 kW; semiconductors devices; three-phase three-level inverter; Equations; Inverters; Mathematical model; Pulse width modulation; Stress; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE

Conference_Location

Orlando, FL

Print_ISBN

978-1-4577-1215-9

Electronic_ISBN

978-1-4577-1214-2

Type

conf

DOI

10.1109/APEC.2012.6166163

Filename

6166163