Neutral points voltage balancing control of a four-level π-type converter

Bosen Jin, Xibo Yuan

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

5 Citations (Scopus)
398 Downloads (Pure)


In this paper, a carrier-based modulation method with optimal zero-sequence signal injection has been introduced to modulate a four-level π-type converter as well as regulate its DC-link neutral points' voltages. The two neutral points' voltages can be well controlled with a back-to-back configuration even under high modulation index and high power factor. A back-to-back experimental system has been built and tests under 300V have validated this control strategy.
Original languageEnglish
Title of host publication2016 IEEE Energy Conversion Congress and Exposition (ECCE 2016)
Subtitle of host publicationProceedings of a meeting held 18-22 September 2016, Milwaukee, Wisconsin, USA
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages8
ISBN (Electronic)9781509007370
ISBN (Print)9781509007387
Publication statusPublished - Apr 2017


  • modeling
  • energy efficiency and industrial applications
  • power converters
  • control


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