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Influence of a workplace electric vehicle charging station's design and control on grid impact

Starosta, A. ORCID iD icon; Munzke, N. ORCID iD icon 1; Hiller, Marc
1 Elektrotechnisches Institut (ETI), Karlsruher Institut für Technologie (KIT)


With the increasing adoption of electric vehicles (EV), the electricity grid is majorly impacted due to its uncertain charging requirements, especially when there is a high penetration of distributed renewable energy sources such as photovoltaic systems (PV). Along with solutions including intelligent control of electric load with a battery energy storage system (BESS), an optimal design of the EV charging infrastructure is vital. Simulative analysis could help to evaluate the costs, self-sufficiency, self-consumption and grid impact indicators. However, grid impact indicators have not been evaluated for EV charging stations so far. This paper deals with a DC-coupled EV charging infrastructure that is connected to a PV array, BESS and the electricity grid. The system is evaluated for a workplace environment. The charging infrastructure includes a variable number of AC and DC charging points. A load shifting algorithm is introduced in case the PV, BESS and grid inverter cannot cover the load. Furthermore, a charging algorithm which maximizes self-consumption is introduced. Economic optima with and without the charging strategy are used as reference systems for evaluating the grid inverter's and battery's sizes as well as number of charging points influencing electricity costs and grid impact indicators. ... mehr

Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2021
Sprache Englisch
Identifikator ISBN: 978-1-83953-679-3
KITopen-ID: 1000148878
HGF-Programm 37.12.02 (POF IV, LK 01) Design,Operation & Digitalization of the Future Energy Grids
Erschienen in 5th E-Mobility Power System Integration Symposium (EMOB 2021)
Veranstaltung 5th E-Mobility Power System Integration Symposium (EMOB 2021 2021), Berlin, Deutschland, 27.09.2021
Verlag Institution of Engineering and Technology (IET)
Seiten 221–228
Projektinformation SKALE - Aufstockung (BMWK, 01MV19004D_I)
Schlagwörter EV charging infrastructure, simulation, sizing, efficiency, self-sufficiency, PV, BESS, grid impact, net zero energy
Nachgewiesen in Dimensions
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