100767 20220425105231.0 doi 10.1109/TIM.2020.2981987 sideral 117683 ART-2020-117683 eng Lodetti, Stefano A robust wavelet-based hybrid method for the simultaneous measurement of harmonic and supraharmonic distortion 2020 Access copy available to the general public Unrestricted This paper introduces a new method for the simultaneous 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 detect-all=true10 cycles measurement interval, something crucial when implementing methods to measure harmonic and supraharmonic content according to the IEC 61000-4-7 standard. Discrete Fourier Transform (DFT)-based methods, instead, must analyze a fixed detect-all=true200 interval in order to avoid apparent shifts of the supraharmonic frequency components. The results of the experimental measurements presented in the paper show that the DFT-based methodology suggested in the IEC 61000-4-7 standard produces results affected by the value of the power frequency and amplitude while the proposed method, instead, is insensitive to them. This feature also removes the need of a previous high pass filtering stage, required for the IEC method. Moreover, the proposed method has the additional advantage of working on the same measurement interval to calculate both harmonics and supraharmonics, which reduces the complexity of data handling by avoiding multithreaded Data Acquisition (DAQ) operations. info:eu-repo/grantAgreement/EC/H2020/676042/EU/Metrology Excellence Academic Network for Smart Grids/MEAN4SG This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 676042-MEAN4SG info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.016 2020 INSTRUMENTS & INSTRUMENTATION 11 / 64 = 0.172 2020 Q1 T1 ENGINEERING, ELECTRICAL & ELECTRONIC 60 / 273 = 0.22 2020 Q1 T1 0.82 2020 Instrumentation 2020 Q1 Electrical and Electronic Engineering 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Bruna, Jorge (orcid)0000-0002-6067-6024 Melero, Julio J. Universidad de Zaragoza (orcid)0000-0003-2360-0845 Khokhlov, Victor Meyer, Jan 5009 535 Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Ingeniería Eléctrica 69, 9 (2020), 6704-6712 IEEE trans. instrum. meas. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 0018-9456 3531934 http://zaguan.unizar.es/record/100767/files/texto_completo.pdf Postprint 3379193 http://zaguan.unizar.es/record/100767/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:100767 articulos driver 2022-04-25-10:36:49 ARTICLE