A Family of Cost-Effective Magnetically-Coupled Impedance Source Inverters

Kerui Li, Yongheng Yang, Zian Qin, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

2 Citations (Scopus)

Abstract

This paper presents a family of cost-effective magnetically-coupled impedance source inverters for renewable energy systems. The inverters are derived from magnetically-coupled impedance source networks, featuring low cost and no ground leakage current when used in PV system. The numbers of required semiconductor switches is reduced. More important, the elimination of leakage currents makes it particularly suitable for high-efficiency photovoltaic (PV) applications. A comparison among prior-art PV inverters is then performed. The Performances of the inverters are evaluated analytically as well as by simulations. The analysis and simulation show the superiority of the proposed inverter in terms of leakage current suppression and low cost.
Original languageEnglish
Title of host publicationProceedings of 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Number of pages6
PublisherIEEE Press
Publication dateOct 2017
Pages7679-7684
DOIs
Publication statusPublished - Oct 2017
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/201701/11/2017
SponsorChinese Association of Automation (CAA), Chinese Power Supply Society, et al., IEEE Industrial Electronics Society (IES), Systems Engineering Society of China, The Institute of Electrical and Electronics Engineers (IEEE)

Keywords

  • Leakage current
  • Impedance source network
  • Magnectially-coupled impedance source network
  • Inverters
  • Photovoltaic systems
  • Efficiency

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