Forecasting voltage harmonic distortion in residential distribution networks using smart meter data

Pablo Rodrıguez-Pajaron, araceli Hernandez-Bayo, Jovica V. Milanovic

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Abstract

This paper introduces a methodology to forecast voltage total harmonic distortion (THD) at low voltage busbars
of residential distribution feeders based on the data provided by a limited number of smart meters. The meth-
odology provides relevant power quality indices to system operators using only the existing monitoring infra-
structure required for demand response operation. Different algorithms for voltage THD forecasting are
implemented, including artificial neural networks, and their performance is tested and compared. The necessary
coverage of smart meters for the acceptable accuracy of the estimated THD is also established. The estimation
algorithms are validated considering probabilistic demand load model developed based on typical harmonic
injections of household devices obtained from measurements and using a typical European low voltage test-
feeder with 471 residential consumers.
Original languageEnglish
Article number107653
Number of pages12
JournalInternational Journal of Electrical Power & Energy Systems
Volume136
Early online date7 Oct 2021
DOIs
Publication statusPublished - 1 Mar 2022

Keywords

  • distribution network
  • neural network
  • power quality
  • smart meter
  • voltage distortion

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