Robust estimation of real-time single-phase grid voltage frequency under distorted conditions

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

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

6 Citations (Scopus)

Abstract

This paper proposes a robust estimation technique of the real-time single-phase grid voltage fundamental frequency under distorted conditions. The proposed technique consists of a demodulation method and a finite-impulse- response based differentiation filter. A frequency domain analysis is presented for designing the differentiation filter relying on a modulating function strategy. The differentiation filter is used to estimate the time-varying fundamental frequency from the instantaneous phase angle obtained by the demodulation method. The proposed technique is capable of providing accurate estimation of fundamental frequency and can also reject the negative effects caused by the presence of the DC offset, harmonics and noise. Moreover, there are no stability issues in the open loop system of the proposed technique. The effective application of the proposed technique is confirmed by real-time experimental results.
Original languageEnglish
Title of host publication2013 IEEE ECCE Asia Downunder
Subtitle of host publication5th IEEE Annual International Energy Conversion Congress and Exhibition
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages948-954
Number of pages7
ISBN (Electronic)9781479904822
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013 - Melbourne, VIC, Australia
Duration: 3 Jun 20136 Jun 2013

Other

Other2013 IEEE ECCE Asia Downunder - 5th IEEE Annual International Energy Conversion Congress and Exhibition, IEEE ECCE Asia 2013
CountryAustralia
CityMelbourne, VIC
Period3/06/136/06/13

Keywords

  • Differentiation filter
  • fundamental frequency
  • modulating function
  • robust estimation
  • single-phase voltage system

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