A demodulation based technique for accurate estimation of real-time single-phase grid voltage fundamental parameters

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

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

2 Citations (Scopus)

Abstract

This paper proposes a simple technique for accurate, robust and fast estimation of real-time single-phase grid voltage fundamental amplitude and frequency under distorted grid conditions. A frequency adaptive oscillator tuned at around second harmonic is combined with a conventional demodulation based technique. The proposed oscillator can reduce the negative effects caused by the oscillations at around second harmonic which is generated by the demodulation of fundamental component. The proposed technique improves the fundamental voltage amplitude and frequency estimation accuracy significantly as compared to the conventional demodulation based technique. Moreover, the integration of the proposed oscillator with the demodulation based technique does not affect the dynamic response of the estimated fundamental voltage amplitude and frequency. Real-time experimental 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)
Pages6402-6407
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

  • Demodulation
  • parameter estimation
  • quadrature signal generator (QSG)
  • single-phase voltage system

Fingerprint Dive into the research topics of 'A demodulation based technique for accurate estimation of real-time single-phase grid voltage fundamental parameters'. Together they form a unique fingerprint.

Cite this