Control algorithm for improving voltage quality of PMSG wind turbines under distorted network

  • Jayoon Kang
  • , Daesu Han
  • , Yongsug Suh
  • , Byoungchang Jung
  • , Jeongjoong Kim
  • , Jonghyung Park
  • , Youngjoon Choi

Research output: Contribution to conferenceConference paperpeer-review

Abstract

This paper proposes a control algorithm for permanent magnet synchronous generator with a back-to-back three-level neutral-point clamped voltage source converter in a medium-voltage offshore wind power system under unbalanced grid conditions. The proposed control algorithm particularly compensates for the unbalanced grid voltage at the point of common coupling in a collector bus of offshore wind power system. This control algorithm has been formulated based on the symmetrical components in positive and negative rotating synchronous reference frames under generalized unbalanced operating conditions. Negative sequential component of ac input current is injected to the point of common coupling in the proposed control strategy. The amplitude of negative sequential component is calculated to minimize the negative sequential component of grid voltage at PCC under the limitation of current capability in a voltage source converter. The proposed control algorithm makes it possible to provide a balanced voltage at the point of common coupling resulting in the generated power of high quality from offshore wind power system under unbalanced network conditions.

Original languageEnglish
Title of host publicationAPEC 2015 - 30th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1302-1309
Number of pages8
EditionMay
ISBN (Electronic)9781479967353
DOIs
StatePublished - 2015.05.8
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: 2015.03.152015.03.19

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
NumberMay
Volume2015-May

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/TerritoryUnited States
CityCharlotte
Period15.03.1515.03.19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • converter
  • PCC
  • PMSG
  • unbalanced grid
  • wind power system

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Electrical & Electronic
  • Engineering - Petroleum

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