Survey of a power quality measurement campaign in low-voltage grids

Verner Püvi, Toni Tukia, Matti Lehtonen, Lauri Kütt

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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Abstract

With an increasing share of renewable energy generation becoming connected to distribution grids, power quality has attracted the attention of grid operators and academia. However, to obtain a realistic picture, power quality distortions caused by renewables should be superimposed on already existing emissions in grids. Measured household load data is tedious to acquire and is not publicly available. This paper presents the data from a low-voltage feeder measurement campaign and it is divided into voltage and feeder current analyses. The voltage parameters are validated as per EN 50160. The measured data includes measurements from feeders supplying single-family homes as well as one apartment building. A total of 24 weeks of 10-second mean values were recorded in the Helsinki region of Finland. Results indicate that the voltage quality is within the acceptable limits. The feeder currents show load unbalance in single-family homes and high utilisation rate of feeders supplying multiple customers.

Original languageEnglish
Title of host publicationElectric Power Quality and Supply Reliability Conference and Symposium on Electrical Engineering and Mechatronics, PQ and SEEM 2019
PublisherIEEE
Number of pages7
ISBN (Electronic)9781728126500
DOIs
Publication statusPublished - 1 Jun 2019
MoE publication typeA4 Article in a conference publication
EventElectric Power Quality and Supply Reliability Conference and Symposium on Electrical Engineering and Mechatronics - Kärdla, Estonia
Duration: 12 Jun 201915 Jun 2019

Conference

ConferenceElectric Power Quality and Supply Reliability Conference and Symposium on Electrical Engineering and Mechatronics
Abbreviated titlePQ/SEEM
CountryEstonia
CityKärdla
Period12/06/201915/06/2019

Keywords

  • Load modeling
  • Power measurement
  • Power quality
  • Signal resolution

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  • Cite this

    Püvi, V., Tukia, T., Lehtonen, M., & Kütt, L. (2019). Survey of a power quality measurement campaign in low-voltage grids. In Electric Power Quality and Supply Reliability Conference and Symposium on Electrical Engineering and Mechatronics, PQ and SEEM 2019 [8818232] IEEE. https://doi.org/10.1109/PQ.2019.8818232