A frequency adaptive technique for accurate estimation of single-phase grid voltage fundamental parameters

Md. Shamim Reza, Mihai Ciobotaru, Vassilios G. Agelidis

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

8 Citations (Scopus)

Abstract

This paper proposes a frequency adaptive quadrature signal generator (QSG) for estimating the single-phase grid voltage fundamental parameters such as amplitude and frequency. The QSG relies on the anticonjugate decomposition (ACD) and the cascaded delayed signal cancellation (CDSC) strategies (QSG-ACDSC), and it is used to track the fundamental voltage amplitude. The frequency adaptive capability of the QSG-ACDSC is obtained by a frequency estimation algorithm based on the estimated fundamental orthogonal voltage waveforms. The technique is relatively simple and it can provide accurate estimation of fundamental voltage amplitude and frequency. The proposed technique shows less sensitivity to the presence of harmonics as compared to the QSG based on a second order generalized integrator and a frequency-locked loop. Simulation results are presented to verify the performance of the proposed technique.
Original languageEnglish
Title of host publicationProceedings IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages6408-6413
Number of pages6
ISBN (Electronic)9781479902248
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013 - Vienna, Austria
Duration: 10 Nov 201314 Nov 2013

Conference

Conference39th Annual Conference of the IEEE Industrial Electronics Society, IECON 2013
CountryAustria
CityVienna
Period10/11/1314/11/13

Keywords

  • Anticonjugate decomposition (ACD)
  • cascaded delayed signal cancellation (CDSC)
  • parameter estimation
  • quadrature signal generator (QSG)
  • single-phase voltage system

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