Optimized Integration of Electric Vehicles in Low Voltage Distribution Grids

Martin Spitzer, Jonas Schlund, Elpiniki Apostolaki-Iosifidou and Marco Pruckner
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Martin Spitzer: Energy Informatics, Friedrich-Alexander University Erlangen-Nuernberg (FAU), Martensstr. 3, 91058 Erlangen, Germany
Jonas Schlund: Lab of Computer Networks and Communication Systems, Friedrich-Alexander University Erlangen-Nuernberg (FAU), Martensstr. 3, 91058 Erlangen, Germany
Elpiniki Apostolaki-Iosifidou: Grid Integration, Systems, and Mobility (GISMo), SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
Marco Pruckner: Energy Informatics, Friedrich-Alexander University Erlangen-Nuernberg (FAU), Martensstr. 3, 91058 Erlangen, Germany

Energies, 2019, vol. 12, issue 21, 1-19

Abstract: All over the world the reduction of greenhouse gas (GHG) emissions, especially in the transportation sector, becomes more and more important. Electric vehicles will be one of the key factors to mitigate GHG emissions due to their higher efficiency in contrast to internal combustion engine vehicles. On the other hand, uncoordinated charging will put more strain on electrical distribution grids and possible congestions in the grid become more likely. In this paper, we analyze the impact of uncoordinated charging, as well as optimization-based coordination strategies on the voltage stability and phase unbalances of a representative European semi-urban low voltage grid. Therefore, we model the low voltage grid as a three-phase system and take realistic arrival and departure times of the electric vehicle fleet into account. Subsequently, we compare different coordinated charging strategies with regard to their optimization objectives, e.g., cost reduction or GHG emissions reduction. Results show that possible congestion problems can be solved by coordinated charging. Additionally, depending on the objective, the costs can be reduced by more than 50% and the GHG emissions by around 40%.

Keywords: electric vehicles; optimization; grid model; grid integration; coordinated charging (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

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