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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.
LuleƄ University of Technology, Department of Engineering Sciences and Mathematics, Energy Science.ORCID iD: 0000-0003-4074-9529
2012 (English)In: Electric power systems research, ISSN 0378-7796, E-ISSN 1873-2046, Vol. 88, no 7, p. 112-120Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2012. Vol. 88, no 7, p. 112-120
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electric Power Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-15524DOI: 10.1016/j.epsr.2012.02.002ISI: 000303956000013Scopus ID: 2-s2.0-84858207217Local ID: f0e4b4e1-a90e-49db-9d28-f030eb10ebafOAI: oai:DiVA.org:ltu-15524DiVA, id: diva2:988498
Note
Validerad; 2012; 20120320 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Bollen, Math

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