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Impacts of Fast Charging of Electric Buses on Electrical Distribution Systems

David Steen (Institutionen för energi och miljö, Elteknik) ; Tuan Le (Institutionen för energi och miljö, Elteknik)
24th International Conference on Electricity Distribution (CIRED), June 12-15, 2017, Glasgow, UK (2017)
[Konferensbidrag, refereegranskat]

Electric buses have gained a large public interest lately. In Gothenburg, Sweden a demonstration project is currently underway where electrical and hybrid electric buses are being tried. This paper investigates the impacts on the electrical distribution system from the fast charging stations used to power the electric buses. Alternatives to mitigate the impacts including demand response and energy storage at the charge location have also been investigated in the paper. A case study has been performed for the distribution system of Chalmers University of Technology where a charging station is located. The study results show that in all of the simulated areas, the grid could handle a 300 kW charge station without any problems. Energy storage and demand response could, to some extent, support the grid to manage the fast charging stations but would be limited by the utilization factor of the charger.

Nyckelord: Fast charging, electric buses, distribution systems, battery energy storage



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Denna post skapades 2017-06-27.
CPL Pubid: 250138

 

Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik (2005-2017)

Ämnesområden

Energi
Elkraftteknik

Chalmers infrastruktur