A DC-link voltage ripple compensation method for multilevel active-neutral-point-clamped converters operating with SHE-PWM

Sridhar R. Pulikanti, Georgios S. Konstantinou, Mihai Ciobotaru, Vassilios G. Agelidis

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

1 Citation (Scopus)

Abstract

This paper presents a DC-link voltage ripple compensation method for the five-level flying capacitor (FC) based active-neutral-point-clamped (ANPC) converter operating with selective harmonic elimination pulse width modulation (SHE-PWM). The compensation method modifies the modulation index according to the DC-link voltage ripple, which in turns alters the switching functions. The modification of the switching functions alleviates the effect of the DC-link voltage ripple on the output voltage. A control strategy is implemented to regulate the voltages across the FCs and the DC-link capacitors to their reference voltage levels. The performance of the compensation method is evaluated with experimental results taken from a low power laboratory prototype.
Original languageEnglish
Title of host publicationProceedings IECON 2011
Subtitle of host publication37th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages4354-4360
Number of pages7
ISBN (Electronic)9781612849720
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011 - Melbourne, VIC, Australia
Duration: 7 Nov 201110 Nov 2011

Other

Other37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
CountryAustralia
CityMelbourne, VIC
Period7/11/1110/11/11

Keywords

  • Active neutral-point clamped converter
  • multilevel converter
  • pulse width modulation
  • selective harmonic elimination

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