Synchronization techniques for power quality instruments

Risultato della ricerca: Articlepeer review

62 Citazioni (Scopus)

Abstract

The measurement of voltage characteristics in power systems requires the accurate estimation of the power supply frequency and signal synchronization, even in the presence of disturbances. The authors developed and tested two innovative techniques for instrument synchronization. The first is based on signal spectral analysis techniques performed by means of the Chirp-Z transform analysis. The second is a phase-locked loop (PLL) software based on a time-domain coordinate transformation and an innovative phase-detection technique. To evaluate how synchronization techniques are adversely affected by the application of a disturbing influence, experimental tests were carried out, taking into account the requirements of the standards. The proposed techniques were compared with a standard hardware solution. In this paper, the proposed techniques are described, the experimental results are presented, and the accuracy specifications are discussed.
Lingua originaleEnglish
pagine (da-a)1511-1519
Numero di pagine9
RivistaIEEE Transactions on Instrumentation and Measurement
VolumeVol. 56, NO 5
Stato di pubblicazionePublished - 2007

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering

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