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A new joint sliding-window ESPRIT and DFT scheme for waveform distortion assessment in power systems
Department for Technologies, University of Naples Parthenope.
Department of Electrical Engineering, University of Naples Federico II.
Chalmers University of Technology, Department of Signals and Systems.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.ORCID-id: 0000-0003-4074-9529
2012 (engelsk)Inngår i: Electric power systems research, ISSN 0378-7796, E-ISSN 1873-2046, Vol. 88, nr 7, s. 112-120Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper proposes a novel scheme that jointly employs a sliding-window ESPRIT and DFT for estimating harmonic and interharmonic components in power system disturbance data. In the proposed scheme, separate stages are utilized to estimate the voltage fundamental component, harmonics and interharmonics. This includes the estimation of the fundamental component from lowpass filtered data using a sliding-window ESPRIT, of harmonics from a sliding-window DFT with a synchronized window, and of interharmonics from the residuals by applying the sliding-window ESPRIT. Main advantages of the approach include high resolution and accuracy in parameter estimation and significantly reduced computational cost. Experiments and comparisons are made on both synthetic and measurement data. Results have shown the effectiveness and efficiency of the proposed scheme.

sted, utgiver, år, opplag, sider
2012. Vol. 88, nr 7, s. 112-120
HSV kategori
Forskningsprogram
Elkraftteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-15524DOI: 10.1016/j.epsr.2012.02.002ISI: 000303956000013Scopus ID: 2-s2.0-84858207217Lokal ID: f0e4b4e1-a90e-49db-9d28-f030eb10ebafOAI: oai:DiVA.org:ltu-15524DiVA, id: diva2:988498
Merknad
Validerad; 2012; 20120320 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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