Abstract

This paper presents a multisampling based grid impedance estimation method for two-cell interleaved three-phase grid-connected inverters. By comparing the sampled point of common coupling (PCC) voltage at the peak/valley and intersection points of the phase-shifted carriers, the grid impedance can be estimated under an inductive grid condition. Moreover, to reduce the estimation error, a compensation scheme based on the phase-locked loop (PLL) is developed. Finally, the effectiveness of the proposed method is verified through the experimental results.
Original languageEnglish
Title of host publication2021 IEEE Energy Conversion Congress and Exposition (ECCE)
Publication date16 Nov 2021
Pages590-594
ISBN (Print)978-1-7281-6128-0
ISBN (Electronic)978-1-7281-5135-9
DOIs
Publication statusPublished - 16 Nov 2021
Event2021 IEEE Energy Conversion Congress and Exposition (ECCE) - Vancouver, BC, Canada
Duration: 10 Oct 202114 Oct 2021

Conference

Conference2021 IEEE Energy Conversion Congress and Exposition (ECCE)
LocationVancouver, BC, Canada
Period10/10/202114/10/2021
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

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