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DOI: https://doi.org/10.15407/techned2016.05.017

ANALYSIS AND SYNTHESIS OF SYMMETRICAL OUTPUT VOLTAGE OF THREE-LEVEL CONVERTERS WITH SPACE-VECTOR PWM

Journal Tekhnichna elektrodynamika
Publisher Institute of Electrodynamics National Academy of Science of Ukraine
ISSN 1607-7970 (print), 2218-1903 (online)
Issue № 5, 2016 (September/Oktober)
Pages 17 – 19

 

Authors
V.Oleschuk1, V.Ermuratskii1, F.Barrero2*
1 – Institute of Power Engineering of the Academy of Sciences of Moldova,
5 Academy Str., Kishinev, MD-2028, Moldova,
e-mail: Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
2 – Department of Electronic Engineering, University of Seville, Seville, Spain
* ORCID ID : http://orcid.org/0000-0002-2896-4472

 

Abstract

Modulation processes have been analyzed in three-level H-bridge converter with low switching frequency. It has been shown, that the use of special switching strategy combined with specific technique of PWM allows insuring of quarter-wave symmetry of the output voltage waveforms of converters during entire adjustment range. Investigation of harmonic composition of spectra of the output voltage of converter has been executed. Averaged integral spectral characteristics of the output voltage have been determined for converters with low switching frequency and with three basic versions of pulsewidth modulation. References 6, figures 4.

 

Key words: cascaded converter, switching strategy, spectra and harmonics.

 

Received:    03.02.2016
Accepted:    07.04.2016
Published:  13.09.2016

 

References

1. Beig A.R., Kanukollu S., Dekka A. Space vector-based three-level discontinuous pulse-width modulation algorithm. IET Power Electronics.  2013.  Vol. 6,8.  P. 1475–1482.
2. Bruckner T., Holmes D.G. Optimal pulse-width modulation for three-level inverters. IEEE Trans. Power Electron.  2005.  Vol. 20,1.  P. 82-89.
3. Oleschuk V., Blaabjerg F. Synchronized scheme of continuous space-vector PWM with the real-time control algorithms. Proc. of IEEE Power Electronics Specialists Conf. (PESC’2004).  2004.  P. 1207–1213. DOI: https://doi.org/10.1109/PESC.2004.1355594
4. Oleschuk V., Bojoi R., Griva G., Profumo F. Dual three-phase traction drive with dc sources power balancing based on synchronized PWM. Proc. of IEEE Int’l Electric Machines and Drives Conf. (IEMDC’2007).  2007.  P. 260–265. DOI: https://doi.org/10.1109/IEMDC.2007.382676
5. Rodriguez J., Bernet S., Steimer P.K., Lizama I.E. A survey on neutral-point-clamped inverters. IEEE Trans. Ind. Electron.  2009.  Vol. 57,7.  P. 2219–2230.
6. Trzynadlowski A. Introduction to Modern Power Electronics.  John Wiley & Sons, 1998.  456 p.

 

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