Three-Phase Voltage Sag Supporter Using Switching Cell Structured AC-AC Converter

Hyeongmin Lee, Sanghun Kim, Jaemyeong Kim, Heung Geun Kim, Honnyong Cha

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

2 Scopus citations

Abstract

Voltage sag are the most common and cause more economic losses, which is a serious power quality (PQ) problem. To solve these problems, several topology using an extra battery or back-to-back has been introduced. However, these conventional topologies have drawback in cost effective and system reliability. This paper presents a three-phase voltage sag supporter for power distribute systems known as dynamic voltage restorer (DVR), and is employing direct AC-AC converter using switching cell (SC) structure. The AC-AC converter, in proposed supporter, is highly reliable because they can solve the shoot-through, dead-time, and commutation problem of traditional AC-AC converters without voltage/current sensing devices from SC structure. Moreover, the proposed voltage supporter has a good dynamics because it operates immediately by using interphase voltage when voltage sag is occurred in grid. Simulation and experimental results is provided to verify this.

Original languageEnglish
Title of host publicationICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2302-2308
Number of pages7
ISBN (Electronic)9788957083130
StatePublished - May 2019
Event10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Publication series

NameICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia

Conference

Conference10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia
Country/TerritoryKorea, Republic of
CityBusan
Period27/05/1930/05/19

Keywords

  • Ac-ac
  • Dynamic voltage restorer
  • Power quality
  • Switching cell
  • Voltage sag

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