Sequence-decoupled resonant control of three-phase grid-interfacing inverter for local voltage support under unbalanced load

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Abstract

This paper considers a three-phase four-wire grid-interfacing voltage-source inverter with local unbalanced and distorting loads. A sequence-decoupled resonant control strategy is proposed to support the local voltage on top of conventional active power regulation. The local voltage at the point of common connection, which is traditionally used for grid synchronization for distributed generators, is also used for sensing unbalanced and harmonic voltages. Therefore, measurements of load currents for unbalanced and harmonic compensation can be eliminated with the proposed approach.

Original languageEnglish
Title of host publication2018 20th European Conference on Power Electronics and Applications (EPE'18 ECCE Europe)
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Number of pages10
ISBN (Electronic)978-9-0758-1528-3
Publication statusPublished - 30 Oct 2018
Event20th European Conference on Power Electronics and Applications, EPE 2018 ECCE Europe - Riga, Latvia
Duration: 17 Sep 201821 Sep 2018
Conference number: 20
http://www.epe2018.com/

Conference

Conference20th European Conference on Power Electronics and Applications, EPE 2018 ECCE Europe
Abbreviated titleEPE 2018 ECCE Europe
Country/TerritoryLatvia
CityRiga
Period17/09/1821/09/18
Internet address

Keywords

  • Converter control
  • Harmonics
  • Power quality
  • Three-phase system
  • Voltage source inverter

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