Selective harmonic elimination for quasi seven-level operation of cascaded-type multilevel converters with unequal DC sources

Mina G. Fakhry, A. Massoud, Shehab Ahmed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Generally, selective harmonic elimination (SHE) complexity for multilevel converters increases with the increase in number of levels. In this paper, an approach for multilevel converters' SHE is introduced. This approach is based on cancelling the 5th and 7th order harmonics irrelevant of the number of levels in three-phase cascaded-type multilevel converters with unequal DC sources, such that the solution for the angles required for the proposed SHE mimics that of the seven-level inverter SHE elimination (i.e. quasi seven-level operation of an m-level converter). The advantages of the proposed quasi seven-level SHE (Q7L-SHE) approach are the simplicity in format and independency of number of levels. The proposed approach can be extended for more of low order harmonic cancellation. Compared with the existing methods, the proposed method can be easily applied for a large number of switching angles, since it does not contain complex equations. A 17-level cascaded-type inverter with the unequal DC sources is considered as an example to validate the proposed concept. Simulation results using MATLAB/SIMULINK platform have been presented to elucidate the proposed concept.

Original languageEnglish
Title of host publication2015 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467367653
DOIs
Publication statusPublished - 17 Aug 2015
Event1st Workshop on Smart Grid and Renewable Energy, SGRE 2015 - Doha, Qatar
Duration: 22 Mar 201523 Mar 2015

Other

Other1st Workshop on Smart Grid and Renewable Energy, SGRE 2015
CountryQatar
CityDoha
Period22/3/1523/3/15

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MATLAB

Keywords

  • Cascaded-type inverter
  • Multilevel converter
  • Selective Harmonic Elimination (SHE)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

Cite this

Fakhry, M. G., Massoud, A., & Ahmed, S. (2015). Selective harmonic elimination for quasi seven-level operation of cascaded-type multilevel converters with unequal DC sources. In 2015 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015 [7208734] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SGRE.2015.7208734

Selective harmonic elimination for quasi seven-level operation of cascaded-type multilevel converters with unequal DC sources. / Fakhry, Mina G.; Massoud, A.; Ahmed, Shehab.

2015 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7208734.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fakhry, MG, Massoud, A & Ahmed, S 2015, Selective harmonic elimination for quasi seven-level operation of cascaded-type multilevel converters with unequal DC sources. in 2015 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015., 7208734, Institute of Electrical and Electronics Engineers Inc., 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015, Doha, Qatar, 22/3/15. https://doi.org/10.1109/SGRE.2015.7208734
Fakhry MG, Massoud A, Ahmed S. Selective harmonic elimination for quasi seven-level operation of cascaded-type multilevel converters with unequal DC sources. In 2015 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7208734 https://doi.org/10.1109/SGRE.2015.7208734
Fakhry, Mina G. ; Massoud, A. ; Ahmed, Shehab. / Selective harmonic elimination for quasi seven-level operation of cascaded-type multilevel converters with unequal DC sources. 2015 1st Workshop on Smart Grid and Renewable Energy, SGRE 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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