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Photovoltaics and opportunistic electric vehicle charging in a Swedish distribution grid
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group)ORCID iD: 0000-0001-6745-3635
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group)
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics. (Built Environment Energy Systems Group)
2017 (English)In: Proceedings of the 7th International Workshop on Integration of Solar into Power Systems, Darmstadt, Germany: Energynautics GmbH, 2017Conference paper, Published paper (Other academic)
Abstract [en]

Renewable distributed generation and electric vehicles (EVs) are two important components in the transitions to a more sustainable society. However, both distributed generation and EV charging pose new challenges to the power system due to intermittent generation and high-power EV charging. In this case study, a power system consisting of a low- and medium-voltage distribution grid with more than 5000 customers, high penetration of roof-top mounted photovoltaic (PV) power systems and a fully electrified car fleet is used to assess the impact of the intermittent PV generation and high-power EV charging loads. Two summer weeks and two winter weeks with and without EV charging and a PV penetration varying between 0% and 100% of the annual electricity consumption are examined using measured and simulated data. Results show that the electricity consumption increases with 9% and 18% during the studied periods, and that EV charging only marginally can contribute to lowering the risk of overvoltage for customers resulting from PV overproduction. The most significant result is the increase in undervoltage in the winter when EV charging is introduced. The share of customers affected by undervoltage increases from 0% to close to 1.5% for all PV penetration levels.

Place, publisher, year, edition, pages
Darmstadt, Germany: Energynautics GmbH, 2017.
National Category
Energy Engineering
Research subject
Engineering Science
Identifiers
URN: urn:nbn:se:uu:diva-332680ISBN: 978-3-9816549-5-0 (print)OAI: oai:DiVA.org:uu-332680DiVA: diva2:1153728
Conference
7th International Workshop on Integration of Solar into Power Systems, Berlin, Germany, 24-25 October 2017
Funder
Swedish Energy Agency
Available from: 2017-10-31 Created: 2017-10-31 Last updated: 2017-10-31

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Luthander, RasmusShepero, MahmoudMunkhammar, JoakimWidén, Joakim
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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More styles
Language
  • de-DE
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  • nn-NB
  • sv-SE
  • Other locale
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Output format
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