Intelligent Multi-Vehicle DC/DC Charging Station Powered by a Trolley Bus Catenary Grid

Michéle Weisbach, Tobias Schneider, Dominik Maune, Heiko Fechtner, Utz Spaeth, Ralf Wegener, Stefan Soter and Benedikt Schmuelling
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Michéle Weisbach: Chair of Electric Mobility and Energy Storage Systems, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Tobias Schneider: Institute of Electrical Machines and Drives, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Dominik Maune: Institute of Electrical Machines and Drives, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Heiko Fechtner: Chair of Electric Mobility and Energy Storage Systems, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Utz Spaeth: Chair of Electric Mobility and Energy Storage Systems, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Ralf Wegener: Institute of Electrical Machines and Drives, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Stefan Soter: Institute of Electrical Machines and Drives, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany
Benedikt Schmuelling: Chair of Electric Mobility and Energy Storage Systems, University of Wuppertal, Rainer Gruenter Straße 21, 42119 Wuppertal, Germany

Energies, 2021, vol. 14, issue 24, 1-21

Abstract: This article deals with the major challenge of electric vehicle charging infrastructure in urban areas—installing as many fast charging stations as necessary and using them as efficiently as possible, while considering grid level power limitations. A smart fast charging station with four vehicle access points and an intelligent load management algorithm based on the combined charging system interface is presented. The shortcomings of present implementations of the combined charging system communication protocol are identified and discussed. Practical experiments and simulations of different charging scenarios validate the concept and show that the concept can increase the utilization time and the supplied energy by a factor of 2.4 compared to typical charging station installations.

Keywords: electric vehicle; fast charging; EV charging; load management; smart grid; switching matrix; resonant converter; CCS (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: 2021
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