An improved circulating current control startegy for modular multilevel converters through redundant voltage levels

  • Xingxing Chen
  • , Jinjun Liu
  • , Shaodi Ouyang
  • , Shuguang Song

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

4 Scopus citations

Abstract

This paper first introduces an existing circulating current controller for modular multilevel converter (MMC) through redundant voltage levels with detailed analysis for the controlled circulating current. To further reduce the peak-to-peak value of the circulating current at switching frequency and decrease the total control error, a fixed-band redundant state transition principle is put forward in this paper, so that the circulating current can be approximately limited within the fixed-band. Compared to traditional control methods, the main advantages of the proposed strategy are unaffected arm voltage reference, simple implementation, reduced switching frequency and very fast dynamic performance. Simulation results verified the effectiveness of the proposed control strategy.

Original languageEnglish
Title of host publication2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509015467
DOIs
StatePublished - 2016
Event2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016 - Auckland, New Zealand
Duration: 5 Dec 20168 Dec 2016

Publication series

Name2016 IEEE 2nd Annual Southern Power Electronics Conference, SPEC 2016

Conference

Conference2nd IEEE Annual Southern Power Electronics Conference, SPEC 2016
Country/TerritoryNew Zealand
CityAuckland
Period5/12/168/12/16

Keywords

  • Circulating current
  • fixed-band
  • modular multilevel converter (MMC)
  • redundant voltage levels

Fingerprint

Dive into the research topics of 'An improved circulating current control startegy for modular multilevel converters through redundant voltage levels'. Together they form a unique fingerprint.

Cite this