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Power quality issues into a Danish low-voltage grid with electric vehicles

descriptionPublicationkeyboard_double_arrow_right Conference object , Article 01 Oct 2011Publisher:IEEEJournal:11th International Conference on Electrical Power Quality and Utilisation

Authors: Marra, Francesco; Jensen, Morten M.; Garcia-Valle, Rodrigo; Træholt, Chresten; Larsen, Esben;

doi: 10.1109/epqu.2011.6128946

Power quality issues into a Danish low-voltage grid with electric vehicles

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Abstract

An increased interest on electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs) is dealing with their introduction into low voltage (LV) distribution grids. Lately, analysis on power quality issues has received attention when considering EVs as additional load. The charging of EVs is expected without a centralized coordination in the first years, therefore a study on voltage variations and loading of LV grids is needed to estimate the immediate impact by EVs. In this work, the modeling and simulation of a Danish residential LV grid is conducted considering the two scenarios of dumb charging and overnight charging. The effect of different shares of EVs on voltage variations and transformer loading is assessed and analyzed. Results have shown that if single-phase, 16 A charging is employed, the actual LV grid would withstand the contingency of up to 30–40% of EVs charging overnight.

Related Organizations

Technical University of Denmark
Denmark
Danish Energy Association
Denmark

Keywords

Load modeling, Loading, Vehicles, Voltage measurement, Batteries, Power quality, Power cables

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	10
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average