publication . Article . 2020

A Robust Wavelet-Based Hybrid Method for the Simultaneous Measurement of Harmonic and Supraharmonic Distortion

Lodetti, Stefano; Bruna, Jorge; Melero, Julio J.; Khokhlov, Victor; Meyer, Jan;
English
  • Published: 19 Mar 2020 Journal: IEEE Transactions on Instrumentation and Measurement, volume 69, issue 9, pages 6,704-6,712 (issn: 0018-9456, eissn: 1557-9662, Copyright policy)
Abstract
Abstract—This paper introduces a new method for the simul- taneous measurement of harmonic and supraharmonic distortion with improved robustness against amplitude and power frequency deviations. The proposed algorithm is based on wavelet analysis and it is designed to analyze a 10 cycles measurement interval, something crucial when implementing methods to measure har- monic and supraharmonic content according to the IEC 61000- 4-7 standard. Discrete Fourier Transform (DFT)-based methods, instead, must analyze a fixed 200ms interval in order to avoid apparent shifts of the supraharmonic frequency components. The results of the experimental measurements presented ...
Subjects
free text keywords: High frequency distortion, power quality, har- monics, supraharmonics, measurement techniques, voltage distor- tion, Instrumentation, Electrical and Electronic Engineering
Funded by
EC| MEAN4SG
Project
MEAN4SG
Metrology Excellence Academic Network for Smart Grids
  • Funder: European Commission (EC)
  • Project Code: 676042
  • Funding stream: H2020 | MSCA-ITN-ETN
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