Comparative study of single-phase fundamental component frequency estimation schemes under time-varying harmonic distortion operation

E.B. Kapisch, J.L. Duarte, C.A. Duque

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191 Downloads (Pure)

Abstract

This paper presents an adaptation of a fundamental frequency estimation scheme based on a fast-tracking PLL-based structure. The approach is based on a modification of the Adaptive Quadratic Signals Generator Phase-Locked Loop, adding a pre-filtering stage in order to attenuate the influence of the time-varying harmonics. The time-domain discretization of the proposed scheme is also presented. A comparison between the proposed scheme and a highly accurate Zero-Crossing scheme is performed under time-varying harmonic operation conditions through experimental measurements. While the later is able to provide only the frequency value, the proposed scheme is able to provide both the frequency value, the fundamental component wave form, and its quadratic companion signal, keeping the same fast-tracking characteristic and presenting a smoother behavior.

Original languageEnglish
Title of host publication2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Place of PublicationNiigata (JPN)
PublisherThe Institute of Energy Economics, Japan
Pages1067-1072
Number of pages6
ISBN (Electronic)9784886864055
DOIs
Publication statusPublished - 22 Oct 2018
Event8th International Power Electronics Conference, IPEC- ECCE Asia 2018 - Toki Messe Niigata Convention Center, Niigata, Japan
Duration: 20 May 201824 May 2018
Conference number: 8
http://www.ipec2018.org

Conference

Conference8th International Power Electronics Conference, IPEC- ECCE Asia 2018
Abbreviated titleIPEC 2018 ECCE Asia
Country/TerritoryJapan
CityNiigata
Period20/05/1824/05/18
Internet address

Keywords

  • Frequency-Locked Loop
  • Fundamental Component Estimation
  • Time-varying Harmonics
  • Zero-Crossing

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